Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Iranian Scientists Increase Efficiency of Proton Membrane Cells

Abstract:
Iranian researchers at University of Maraqeh and Isfahan University of Technology increased the efficiency of proton membrane cells by using graphene-platinum nanocomposites.

Iranian Scientists Increase Efficiency of Proton Membrane Cells

Tehran, Iran | Posted on January 8th, 2013

They synthesized graphene through electrochemical methods, and they applied the reduction process simultaneously on graphene oxide and platinum.

In this research, graphene was firstly synthesized in a single stage without using environmental pollutants. Then, a nanocomposite of platinum nanoparticles and graphene was produced, and finally, its performance was studied in methanol oxidation.

Dr. Karim Kakayee, a member of the research team, explained how the nanocomposite of platinum nanoparticles and graphene was synthesized. "Graphene was firstly synthesized through an electrochemical single-stage process. Then, we reduced platinum nanoparticles on the bed of graphene oxide by using boron hydride and EDTA."

Results of the research show that the electrocatalytic activity of platinum nanoparticles in graphene bed in methanol oxidation process is almost twice as the commercial Pt/C. In addition, the starting potential of methanol oxidation on Pt/Graphene bed is less than that of Pt/C, and the kinetics of methanol oxidation in the new electrocatalyst is higher than that of the commercial sample, and it has higher signal per noise.

This catalytic powder is directly used in fuel cells, although graphene itself can be used in solar cells due to the lack of the application of pollutants in this method. According to Dr. Kakayee, the commercialization of graphene was one of the objectives of the research. In case the required support is provided, the production of graphene through this method can enter the industrial production stage.

Results of the research have been published in Journal of Power Sources, vol. 255. For more information, visit the detail of the research on pages 356-363.

####

For more information, please click here

Copyright © Fars News Agency

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Caught on camera -- chemical reactions 'filmed' at the single-molecule level March 22nd, 2017

Rare-earths become water-repellent only as they age March 22nd, 2017

Pulverizing e-waste is green, clean -- and cold: Rice, Indian Institute researchers use cryo-mill to turn circuit boards into separated powders March 21st, 2017

CRMGroup in Belgium uses a Deben three point bending stage in the development of new steel & coated steel products for automotive and other industrial applications March 21st, 2017

Graphene/ Graphite

Intertronics introduce new nanoparticle deagglomeration technology March 15th, 2017

Space energy technology restored to make power stations more efficient: Scientists use graphene to reinvent abandoned heat energy converter technology March 7th, 2017

Graphene sheets capture cells efficiently: New method could enable pinpoint diagnostics on individual blood cells March 3rd, 2017

Applied Graphene Materials plc - Significant commercial progress in AGM’s three core sectors March 3rd, 2017

Discoveries

Caught on camera -- chemical reactions 'filmed' at the single-molecule level March 22nd, 2017

Rare-earths become water-repellent only as they age March 22nd, 2017

Pulverizing e-waste is green, clean -- and cold: Rice, Indian Institute researchers use cryo-mill to turn circuit boards into separated powders March 21st, 2017

Electro-optical switch transmits data at record-low temperatures: Operating at temperatures near absolute zero, switch could enable significantly faster data processing with lower power consumption March 20th, 2017

Announcements

Caught on camera -- chemical reactions 'filmed' at the single-molecule level March 22nd, 2017

Rare-earths become water-repellent only as they age March 22nd, 2017

Pulverizing e-waste is green, clean -- and cold: Rice, Indian Institute researchers use cryo-mill to turn circuit boards into separated powders March 21st, 2017

CRMGroup in Belgium uses a Deben three point bending stage in the development of new steel & coated steel products for automotive and other industrial applications March 21st, 2017

Energy

Researchers develop groundbreaking process for creating ultra-selective separation membranes: Discovery could greatly improve energy-efficiency of separation and purification processes in the chemical and petrochemical industries March 15th, 2017

New nanofiber marks important step in next generation battery development March 14th, 2017

Perovskite edges can be tuned for optoelectronic performance: Layered 2D material improves efficiency for solar cells and LEDs March 10th, 2017

Space energy technology restored to make power stations more efficient: Scientists use graphene to reinvent abandoned heat energy converter technology March 7th, 2017

Industrial

Rare-earths become water-repellent only as they age March 22nd, 2017

CRMGroup in Belgium uses a Deben three point bending stage in the development of new steel & coated steel products for automotive and other industrial applications March 21st, 2017

Imaging the inner workings of a sodium-metal sulfide battery for first time: Understanding how the structural and chemical makeup of the material changes during the charge/discharge process could help scientists advance battery design for future energy storage needs March 9th, 2017

Rice lab expands palette for color-changing glass: Nanophotonics team creates low-voltage, multicolor, electrochromic glass March 8th, 2017

Fuel Cells

Scientists boost catalytic activity for key chemical reaction in fuel cells: New platinum-based catalysts with tensile surface strain could improve fuel cell efficiency December 19th, 2016

It's basic: Alternative fuel cell technology reduces cost: Study sets performance targets for metal-free fuel cell membrane December 13th, 2016

Keeping electric car design on the right road: A closer look at the life-cycle impacts of lithium-ion batteries and proton exchange membrane fuel cells December 9th, 2016

Water vapor sets some oxides aflutter: Newly discovered phenomenon could affect materials in batteries and water-splitting devices October 3rd, 2016

Nanobiotechnology

Nanoparticle paves the way for new triple negative breast cancer drug March 20th, 2017

Block copolymer micellization as a protection strategy for DNA origami March 17th, 2017

Nanocages for gold particles: what is happening inside? March 16th, 2017

Biophysicists propose new approach for membrane protein crystallization March 8th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project