a development that could mean faster charging time and longer battery life in electric vehicles and portable electronics.
As a novel energy storage device, supercapacitors have attracted substantial attention in recent years due to their ultra-high charge
while supercapacitors have the potential to charge faster and last longer than conventional batteries, they also need to be much larger in size
and mass in order to hold the same electric energy as batteries. Thus, many scientists are working to develop green, lightweight, low-cost supercapacitors with high performance.
In energy storage devices, storing an electrical charge is called"energy density,"a distinction from"power density, "which refers to how quickly energy is delivered.
Conventional capacitors have high power density but low energy density, which means they can quickly charge
and discharge and release a burst of electric power in a short time, but they can't hold a large amount of electric charges.
Conventional batteries on the other hand, are the opposite. They have high energy density or can store a lot of electric energy, but can take hours to charge and discharge.
Supercapacitors are a bridge between conventional capacitors and batteries, combining the advantageous properties of high power, high energy density and low internal resistance,
which may replace batteries as a fast, reliable and potentially safer power source for electric and portable electronic devices in future, said Singh.
In supercapacitors, high capacitance, or the ability to store an electrical charge, is critical to achieve higher energy density.
Meanwhile, to achieve a higher power density it is critical to have a large electrochemically accessible surface area, high electrical conductivity and short ion diffusion pathways.
and transporting ions through another material at the interface between electrode and electrolyte. Larger redox reaction surfaces are essential for achieving a higher power density for supercapacitors."
have longer battery life and generate less heat than existing mobile devices. The first supercomputers using silicon photonics--already under development at companies such as Intel
With its high electrical conductivity, ability to store energy, and ultra-strong and lightweight structure, graphene has potential for many applications in electronics, energy, the environment,
and even medicine. Now a team of Northwestern University researchers has found a way to print three-dimensional structures with graphene nanoflakes.
and graphene's electrical conductivity most likely contributed to the scaffold's biological success."Cells conduct electricity inherently--especially neurons,
Simple design mimics pumping mechanism of life-sustaining proteins found in living cells The new machine mimics the pumping mechanism of life-sustaining proteins that move small molecules around living cells to metabolize and store energy
For its food, the artificial pump draws power from chemical reactions, driving molecules step-by-step from a low energy state to a high-energy state--far away from equilibrium.
"Our molecular pump is radical chemistry--an ingenious way of transferring energy from molecule to molecule,
The artificial pump is able to syphon off some of the energy that changes hands during a chemical reaction
but the researchers believe it won't be long before they can extend its operation to tens of rings and store more energy.
"This is non-equilibrium chemistry, moving molecules far away from their minimum energy state, which is essential to life,
"Ultimately, they intend to use the energy stored in their pump to power artificial muscles and other molecular machines.
They are used also in other industries to manufacture fuel cells, batteries, filters and light-emitting screens."
"Currently, the most common nanofiber manufacturing technique--electrospinning--uses high-voltage electricity and specially designed equipment to produce the polymer strings.
Twin boundaries in lithium-ion batteries May 21st, 2015insidde: Uncovering the real history of art using a graphene scanner May 21st,
Twin boundaries in lithium-ion batteries May 21st, 2015insidde: Uncovering the real history of art using a graphene scanner May 21st,
Twin boundaries in lithium-ion batteries May 21st, 2015insidde: Uncovering the real history of art using a graphene scanner May 21st,
Twin boundaries in lithium-ion batteries May 21st, 2015defects can'Hulk-up'materials: Berkeley lab study shows properly managed damage can boost material thermoelectric performances May 20th, 2015taking control of light emission:
Since a diode acts as an electricity valve, its structure needs to be asymmetric so that electricity flowing in one direction experiences a different environment than electricity flowing in the other direction.
In order to develop a single-molecule diode, researchers have designed simply molecules that have asymmetric structures.""While such asymmetric molecules do indeed display some diode-like properties,
#Fine-tuned molecular orientation is key to more efficient solar cells Polymer-based solar cells offer a number of potential advantages.
and Kazuo Takimiya of the RIKEN Center for Emergent Matter Science managed to create a type of polymer solar cell called a bulk-heterojunction solar cellhere the electron donor
because we now have an understanding of how we can move forward to create polymer solar cells with greater efficiency.
May 27th, 2015fine-tuned molecular orientation is key to more efficient solar cells May 26th, 2015cancer Iranian Scientists Use Magnetic field to Transfer Anticancer Drug to Tumor Tissue May 24th,
Non-aqueous solvent supports DNA NANOTECHNOLOGY May 27th, 2015production of Copper Cobaltite Nanocomposites with Photocatalytic Properties in Iran May 27th, 2015fine-tuned molecular orientation is key to more efficient solar cells
May 27th, 2015fine-tuned molecular orientation is key to more efficient solar cells May 26th, 2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers Who needs water to assemble DNA?
May 27th, 2015fine-tuned molecular orientation is key to more efficient solar cells May 26th, 2015nanobiotechnology Who needs water to assemble DNA?
soft batteries A method for making elastic high-capacity batteries from wood pulp was unveiled by researchers in Sweden and the US.
foam-like battery material that can withstand shock and stress.""It is possible to make incredible materials from trees
"There are limits to how thin a battery can be, but that becomes less relevant in 3d,
"A 3d structure enables storage of significantly more power in less space than is possible with conventional batteries,
In fact, this type of structure and material architecture allows flexibility and freedom in the design of batteries,
which adds ink that conducts electricity within the aerogel. You can coat the entire surface within."
Similarly, a single cubic decimeter of the battery material would cover most of a football pitch,
"Hamedi says the aerogel batteries could be used in electric car bodies, as well as in clothing, providing the garment has a lining.
Another partner is leading battery researcher, Professor Yi Cui from Stanford university t
#Researchers synthesize magnetic nanoparticles that could offer alternative to Rare earth magnets Abstract: A team of scientists at Virginia Commonwealth University has synthesized a powerful new magnetic material that could reduce the dependence of the United states
Additionally, the emergence of green technology markets-such as hybrid and electric vehicles, direct drive wind turbine power systems and energy storage systems-have created an increased demand for permanent magnets.
because the unique quantum effects in superconductors are a great advantage in achieving the energy saving
Electrons that are driven toward the center absorb enough energy so that some of them emit blue light at double the frequency of the incoming infrared light."
Further potential applications could also be flexible and stretchable electronic devices, luminescent actuators, batteries, smart cloths or sacrificial templates for the growth of new materials.
while cutting energy consumption by 92 percent June 5th, 2015tenasitech secures additional $509, 000 funding to bring scratch resistant acrylics to the world June 5th,
Light can transmit more data while consuming far less power than electricity, and an engineering feat brings optical data transport closer to replacing wires May 29th,
2015battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage Researchers synthesize magnetic nanoparticles that could offer alternative to Rare earth magnets June 1st,
soft batteries May 31st, 2015new'designer carbon'from Stanford boosts battery performance May 30th, 2015chemists discover key reaction mechanism behind the highly touted sodium-oxygen battery May 28th,
2015photonics/Optics/Lasers A major advance in mastering the extraordinary properties of an emerging semiconductor: Black phosphorus reveals its secrets thanks to a scientific breakthrough made by a team from Universite de Montreal, Polytechnique Montreal and CNRS in France June 2nd, 2015new heterogeneous wavelength tunable laser diode for high-frequency efficiency June 2nd,
This process creates a current of magnetic dipoles that we use to manipulate the orientation of a second magnetic layer,
or provide electrical power.""""We use the spin current created by ultrafast heat conduction to generate spin transfer torque.
'##The research project was supported by grants from the Department of energy's Office of Basic energy Sciences, the Department of defense and the National Science Foundation.##
New approach to designing ordered composite materials for possible energy applications April 23rd, 2015advances in molecular electronics: Lights on--molecule on:
2015thin coating on condensers could make power plants more efficient: Graphene layer one atom thick could quadruple rate of condensation heat transfer in generating plants June 1st,
"Led by nanoscientist Ani Sumant of Argonne's Center for Nanoscale Materials (CNM) and Argonne Distinguished Fellow Ali Erdemir of Argonne's Energy systems Division, the five-person Argonne team
"which requires additional energy to overcome.""You can think of it as like trying to slide two egg cartons against each other bottom-to-bottom,
-and thus the energy demands of different mechanical systems-superlubricity has been treated as a tough proposition.""Everyone would dream of being able to achieve superlubricity in a wide range of mechanical systems,
For more information, please visit science. energy. gov. For more information, please click herecontacts: Jared Sagoffwriteemail('anl. gov','media';
2015laboratories NIST's'nano-raspberries'could bear fruit in fuel cells June 9th, 2015mesoporous Particles for the Development of Drug Delivery System Safe to Human bodies June 9th,
2015nist's'nano-raspberries'could bear fruit in fuel cells June 9th, 2015filming the film: Scientists observe photographic exposure live at the nanoscale:
2015stable Perovskite Solar cells Developed through Structural Simplification June 9th, 2015materials/Metamaterials Mesoporous Particles for the Development of Drug Delivery System Safe to Human bodies June 9th,
2015stable Perovskite Solar cells Developed through Structural Simplification June 9th, 2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers A step towards a type 1 diabetes vaccine by using nanotherapy June 10th,
2015investigation of Optical Properties of Quantum dots in Presence of Magnetic, Electrical Fields June 10th, 2015nist's'nano-raspberries'could bear fruit in fuel cells June 9th, 2015filming the film:
Gallium nitride (Gan) and Indium Gallium nitride (Ingan) Technology Targets Fast-growing Markets for Wearable Vision Systems June 2nd, 2015chemists discover key reaction mechanism behind the highly touted sodium-oxygen battery May 28th,
The research was supported by the U s. Department of energy's Office of Science, Basic energy Sciences, Materials science and engineering, and by the National Science Foundation.
For more information, please visit science. energy. gov. For more information, please click herecontacts: Louise Lernerwriteemail('anl. gov','media';
"Ionics, ion-based data processing and energy conversion, is the electronics of the future, "says Jennifer Rupp, a professor of Electrochemical Materials at ETH Zurich,
for example, in lambda sensors of automotive catalytic converters and solid oxide fuel cells. The ETH professor is convinced that the industrial importance of these materials will even further increase-for example, in gas sensors, new classes of data storage and computer circuits,
and in the conversion of chemical energy into electrical energy and vice versa. One of the most important research questions in Rupp's field currently is how to optimise these materials,
Shi attached microelectrodes to small pieces of these membranes to create tiny components that can be used to generate electricity from hydrogen or organic compounds and from oxygen in the air.
"Even in earlier experiments, scientists noticed that power generation in micro solid oxide fuel cells varies greatly depending on the structure of such cells.
This supports the development of future gas sensors, ion-based data storage and micro energy converters, such as fuel cells-and potentially a range of other as yet unknown applications in the promising field of ionics.##
2015binghamton engineer creates origami battery June 10th, 2015mipt physicists develop ultrasensitive nanomechanical biosensor June 9th, 2015new composite material as CO2 sensor June 8th, 2015discoveries Designer electronics out of the printer:
Inc. Congratulates Key Customer for Winning Energy conservation Awards: Paper Manufacturer Recognized for Lowering Energy costs and Carbon emissions June 15th, 2015a protective shield for sensitive catalysts:
Hydrogels block harmful oxygen June 15th, 2015automotive/Transportation A protective shield for sensitive catalysts: Hydrogels block harmful oxygen June 15th, 2015slip sliding away:
Inc. Congratulates Key Customer for Winning Energy conservation Awards: Paper Manufacturer Recognized for Lowering Energy costs and Carbon emissions June 15th,
2015ais Introduces Industry 4. 0 Ready, Industrial Controls and Factory Automation HMI Touch-Panels, for Easy Visual, Control and Monitoring in Discrete and Process Automation Industries
2015battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage Binghamton engineer creates origami battery June 10th, 2015ultrafast heat conduction can manipulate nanoscale magnets June 8th, 2015diffusion and Remote Detection of Hot-Carriers in Graphene June 8th,
Hydrogels block harmful oxygen June 15th, 2015nist's'nano-raspberries'could bear fruit in fuel cells June 9th, 2015unlocking nanofibers potential:
while cutting energy consumption by 92 percent June 5th, 2015unique microscopic images provide new insights into ionic liquids April 28th, 201 0
ranging from the catalysts used for the generation of energy-dense fuels from sunlight and carbon dioxide, to how bridges and airplanes rust."
and causing atoms in the material to emit energy in the form of electrons rather than photons.
"##About DOE/Lawrence Berkeley National Laboratorylawrence Berkeley National Laboratory addresses the world's most urgent scientific challenges by advancing sustainable energy,
For more information, please visit the Office of Science website at science. energy. gov/.For more information,
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015news and information Scientists film shock waves in diamond:
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015registration in 8th Int'l Iran Nano Expo 2015 Starts June 18th, 2015chemistry $8
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015new Sensors Measure Blood Anticoagulation Drug June 17th,
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015registration in 8th Int'l Iran Nano Expo 2015 Starts June 18th, 2015interviews/Book reviews
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015new Sensors Measure Blood Anticoagulation Drug June 17th,
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015graphene heat-transfer riddle unraveled June 17th, 201 0
says Yu. alf of the energy loss at that moment is due to thermal radiation since your skin temperature is temporarily much higher than that of the surrounding environment.
"The results--published online June 23 in the journal Nature Communications--could transform the manufacture of high-tech coatings for anti-reflective surfaces, improved solar cells,
"For example, a single layer of platinum nanowires conducts electricity in only one direction, but a two-layer mesh conducts uniformly in all directions."
The corticosteroid DEX, a powerful ameliorator of inflammation, was released from the polymer by external application of an Electromagnetic field for 2 hours/day for a week.
The nanowires respond to an electromagnetic field generated by a separate device, which can be used to control the release of a preloaded drug.
a conductive polymer material that responds to electromagnetic fields. Wen Gao, a postdoctoral researcher in the Center for Paralysis Research who worked on the project with Borgens
when the correct electromagnetic field is applied, the nanowires release small amounts of the payload. This process can be started
by using the corresponding electromagnetic field stimulating device, Borgens said. The researchers captured and transported a patch of the nanowire carpet on water droplets that were used used to deliver it to the site of injury.
The magnitude and wave form of the electromagnetic field must be tuned to obtain the optimum release of the drug,
The electromagnetic field is likely affecting the interaction between the nanomaterial and the drug molecules, Borgens said."
Once the electromagnetic field is removed, the polymer snaps back to the initial architecture and retains the remaining drug molecules."
"For each different drug the team would need to find the corresponding optimal electromagnetic field for its release,
Functional Drug Delivery Using Electromagnetic field-Responsive Polypyrrole Nanowires, "was published in the journal Langmuir. Other team members involved in the research include John Cirillo,
who designed and constructed the electromagnetic field stimulating system; Youngnam Cho, a former faculty member at Purdue's Center for Paralysis Research;
and an electromagnetic field was applied for two hours a day for one week. By the end of the week the treated mice had a weaker GFAP signal than the control groups,
but were exposed not to the electromagnetic field. In some cases, treated mice had no detectable GFAP signal.
The U s. Deparment of Energy, Air force Office of Scientific research and the Moore Foundation funded the work.
"Quantum dots, which have use in diverse applications such as medical imaging, lighting, display technologies, solar cells, photocatalysts, renewable energy and optoelectronics, are typically expensive and complicated to manufacture.
or chemical environment to provide unique functionality in a wide range of applications from energy to medicine.
"At just one atom thick, graphene is the thinnest substance capable of conducting electricity. It is very flexible
transparent material able to conduct electricity. The same team have discovered recently that Graphexeter is also more stable than many transparent conductors commonly used by, for example, the display industry.
and solar panels, can be printed on plastic or paper substrates, but these substrates tend to be rigid or hard.
Another point is that various industries can reduce their costs by using this method in long-term periods through reducing the pollution and less consumption of energy.
The industrial and usual application of zinc oxide nanoparticles is in rubber industry due to its isolation against electricity
The results demonstrate a powerful operando technique--from the Latin for"in working condition"--that may revolutionize research on catalysts, batteries, fuel cells,
and other major energy technologies.""We tracked the dynamic transformations of a working catalyst, including single atoms and larger structures,
To prove the efficacy of this new mosquito-sized reaction chamber--called a micro-reactor--the scientists tracked the performance of a platinum catalyst during the conversion of ethylene to ethane, a model reaction relevant to many industrial synthesis processes.
low-pressure vacuum--but the micro-reactor allowed the TEM to operate in the presence of an atmosphere of reactive gases."
"But with the micro-reactor, some signals were too small to detect. Particles smaller than a single nanometer were hidden behind
and deposits energy as it passes through the micro-reactor. The sample then emits secondary x-rays,
"Versatile micro-reactor The new micro-reactor was designed specifically and built to work seamlessly with both synchrotron x-rays and electron microscopes."
"Brighter, faster experiments The collaboration has extended already this operando micro-reactor approach to incorporate two additional techniques--infrared
but other new micro-reactors can operate at up to 800 degrees Celsius--more than hot enough for most catalytic reactions
In the near future, this same micro-reactor approach will be used to explore other crucial energy frontiers,
including batteries and fuel cells.""We are seeing the emergence of a very powerful and versatile technique that leverages both NSLS-II
who was named recently Special Assistant for Operando Experimentation for Brookhaven's Energy Sciences Directorate.""This approach complements the many facilities being developed at Brookhaven Lab for operando energy research.
Our goal is to be world leaders in operando science."#"##About Brookhaven National Laboratory Brookhaven National Laboratory is supported by the Office of Science of the U s. Department of energy.
For more information, please visit science. energy. gov. One of ten national laboratories overseen and primarily funded by the Office of Science of the U s. Department of energy (DOE), Brookhaven National Laboratory conducts research in the physical, biomedical, and environmental sciences,
as well as in energy technologies and national security. Brookhaven Lab also builds and operates major scientific facilities available to university, industry and government researchers.
New non-platinum and nanosized catalyst for polymer electrolyte fuel cell Abstract: Canadelectrochim have discovered a new non-platinum and nano-sized catalyst for the fuel cell based on Mother Nature
which mimics the plant leaf. PEMFC as an optimal solution for the future energy economypolymer electrolyte membrane or proton exchange membrane fuel cell (PEMFC), where chemical energy is converted directly to electrical energy,
provides a highly efficient alternative to a standard internal combustion engine. High power density, clean emissions (water), low temperature operation, rapid start-up and shutdown,
and ability to use fuels from renewable sources are several reason why fuel cells such as PEMFC have attracted attention for large market applications,
It is known that splitting a hydrogen molecule at the anode of fuel cell using platinum is relatively easy.
splitting the oxygen molecule at the cathode of fuel cell (oxygen reduction reaction(,ORR)) is more difficult
and this causes significant polarization losses (lowers efficiency of the fuel cell). An appropriate catalyst for this process has not been discovered
2). Fuel cells generate electricity by combining hydrogen gas with oxygen to produce water (figure 1). Although that sounds perfectly clean and green,
it can poison the platinum catalysts that are important to driving the fuel cell. In the heart of a fuel cell, CO binds tightly to platinum
and prevents it from grabbing hydrogen, the first step in the reaction.)However, Hydrogen produced from water splitting by photosynthesis is very clean
An electrolyte or membrane is used to separate oxygen gas at the cathode region from hydrogen gas in the anodic region,
The electrolyte plays a key role. It must permit only the appropriate ions to pass between the anode and cathode.
If free electrons or other substances could travel through the electrolyte, they would short circuit the current in the fuel cell
and fuel cell degradation occurs. Advancements in the electrolyte system of PEMFCTHE commercial development of a special electrolyte (single ion conducting polymer electrolyte) changed the field of electrochemical devices in a significant way.
Electrochemists have spent many years in a continuing search for newer, more highly conducting (ions and not electrons) and a more electrochemically stable electrolyte system.
With the development of a single ion (for example only hydrogen ions in PEMFC) conducting polymer, electrochemists have the ability to choose from a variety of polymers with both high conductivity for a given ion of interest (off course hydrogen ions
in PEMFC) as well as excellent stability and process-ability allowing the design of electrochemical devices (such as PEMFC) in their most ideal format (3). The broad class of electrolyte (electrolyte is a polymer
and so it is called polymer electrolyte) to which Nafion (discovered by Dupont company) belong has application in a number of area of commercial importance,
not limited to PEMFC. When the PEMFC reaches its eventual position as the major power generation system in a broad-based application such as automotive propulsion,
these Nafion electrolytes will reach a scale of production far exceeding the current levels. This change will bring about significant challenges for companies who manufacture the electrolyte but also offer tremendous opportunity.
It is likely that these future ubiquitous electrolytes for PEMFC will look different, produce much less pollution during manufacturing
and cost much less than the electrolyte that dominate the commercial landscape today. Optimizing PEMFC and positive environmental impactsfuture PEMFC will have to use low grade (inexpensive) hydrogen gas
which contains impurities (e g. carbon monoxide) that poison precious metal catalysts (e g. platinum) only at low temperatures (less than 120°C)
However, at higher temperatures, current electrolyte that is used in PEMFC dehydrate (becomes very dry), reducing ionic conductivity (no hydrogen ions would be able to migrate) and overall cell performance.
and 100%relative humidity because Nafion is used as an electrolyte in these PEMFC. Thus there is a worldwide effort currently underway to find suitable alternatives to Nafion that might allow higher temperature operation
In the direction of operating the fuel cell using a cost effective and non-platinum based catalyst,
Alberta had presented a mechanism for the fuel cell reaction based on Mother Nature which mimics the plant leaf.
Based on this mechanism the reaction of the fuel cell does not require platinum. References 1 Hydrogen
Fuel cells & Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan, U s. Department of energy, October 2007.2 Hydrogen fuel Cells & Infrastructure Technologies Program Multi
-Year Research, Development and Demonstration Plan, U s. Department of energy, October 2007.3 M. Doyle and G. Rajendran, Chapter 10, Handbook of fuel cell, edited by W. Vielstich, Volume 3:
Fuel cell technology and Applications, John Wiley Ltd. 2003)##For more information, please click herecontacts: M. Redaphone:
Updates to the Basis of the Company's Industry-Changing Nanotechnology Designed to Strengthen Position in Global Air, Energy,
Hydrogels block harmful oxygen June 15th, 2015nist's'nano-raspberries'could bear fruit in fuel cells June 9th, 201 2
News and information Samsung's New Graphene technology Will Double Life Of Your Lithium-Ion Battery July 1st,
2015announcements Samsung's New Graphene technology Will Double Life Of Your Lithium-Ion Battery July 1st, 2015researchers from the UCA, key players in a pioneering study that may explain the origin of several digestive diseases June 30th,
2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers Samsung's New Graphene technology Will Double Life Of Your Lithium-Ion Battery July 1st,
explaining that the chip would need less energy and that obtaining results would require fewer steps than other methods.
Phase diagramm between 2 and 900 Kelvin Using neutron scattering experiments at the BER II research reactor,
since the kinetic energy of the atoms still suppresses the Jahn-Teller effect and magnetic ordering cannot become established.
and would also lead to a considerable reduction in energy usage. According to an American study approximately half the energy required to run computer servers,
is used for cooling purposes alone. A couple of years ago, a research team led by Johan Liu, professor at Chalmers University of Technology, were the first to show that graphene can have a cooling effect on silicon-based electronics.
and has eight Areas of Advance Built environment, Energy, Information and Communication Technology, Life science, Materials science, Nanoscience and Nanotechnology, Production, and Transportation.
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