Navigation Links
'Unzipped' carbon nanotubes could help energize fuel cells and batteries, Stanford scientists say
Date:5/27/2012

Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at Stanford University. Their findings are published in the May 27 online edition of the journal Nature Nanotechnology.

"Platinum is very expensive and thus impractical for large-scale commercialization," said Hongjie Dai, a professor of chemistry at Stanford and co-author of the study. "Developing a low-cost alternative has been a major research goal for several decades."

Over the past five years, the price of platinum has ranged from just below $800 to more than $2,200 an ounce. Among the most promising, low-cost alternatives to platinum is the carbon nanotube a rolled-up sheet of pure carbon, called graphene, that's one-atom thick and more than 10,000 times narrower a human hair. Carbon nanotubes and graphene are excellent conductors of electricity and relatively inexpensive to produce.

For the study, the Stanford team used multi-walled carbon nanotubes consisting of two or three concentric tubes nested together. The scientists showed that shredding the outer wall, while leaving the inner walls intact, enhances catalytic activity in nanotubes, yet does not interfere with their ability to conduct electricity.

"A typical carbon nanotube has few defects," said Yanguang Li, a postdoctoral fellow at Stanford and lead author of the study. "But defects are actually important to promote the formation of catalytic sites and to render the nanotube very active for catalytic reactions."

Unzipped

For the study, Li and his co-workers treated multi-walled nanotubes in a chemical solution. Microscopic analysis revealed that the treatment caused the outer nanotube to partially unzip and form nanosized graphene pieces that clung to the inner nanotube, which remained mostly intact.

"We found that
'/>"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Sensing the infrared: Researchers improve IR detectors with single-walled carbon nanotubes
2. From lemons to lemonade: Using carbon dioxide to make carbon nitride
3. Carbon capture and storage -- new research from UKERC shows tough road ahead to realize potential
4. Carbon nanotubes can double growth of cell cultures important in industry
5. Silicon-carbon electrodes snap, swell, dont pop
6. UCLA researchers demonstrate fully printed carbon nanotube transistor circuits for displays
7. Carbon nanotube forest camouflages 3-D objects
8. New biosensor benefits from melding of carbon nanotubes, DNA
9. Carbon nanotube muscles generate giant twist for novel motors
10. Boston College Researchers discover 2 early stages of carbon nanotube growth
11. Researchers use carbon nanotubes to make solar cells affordable, flexible
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Unzipped' carbon nanotubes could help energize fuel cells and batteries, Stanford scientists say
(Date:3/30/2015)... 30, 2015 /CNW/ - A new national Labour Market ... and demographic profiles of new graduates entering the biotech ... Building Careers for New Grads in Biotech," is sponsored ... Pharmaceutical Companies (Rx&D) and features data collected from new ... subsidy program from 2013 to 2015. Among ...
(Date:3/30/2015)... PARK, N.J. , March 30, 2015 /PRNewswire/ ... (PAMORA) under development by Shionogi & Co., Ltd., ... phase III study (COMPOSE I) for the treatment ... chronic non-cancer pain receiving opioid therapy. Study results ... daily) statistically significantly improved the frequency of spontaneous ...
(Date:3/29/2015)... IRVING, Texas , March 29, 2015 ... the presentation of important study data showing ... cells in 1,599 gynecologic cancer samples. Using ... tumor profiling service, researchers identified expression of ... gynecologic cancers independent of histology while its ...
(Date:3/27/2015)... LANSING, Mich. , March 27, 2015  Neogen ... Properties, LLC, has adopted a prearranged trading plan in ... James Herbert , Chairman and CEO of Neogen Corporation, ... shares of Neogen Corporation common stock. Herbert ... the disclosure was appropriate. The filing is only for ...
Breaking Biology Technology:New Report on Graduates in Canadian Biotech Industry Sheds Light on Hiring Practices 2New Report on Graduates in Canadian Biotech Industry Sheds Light on Hiring Practices 3New Report on Graduates in Canadian Biotech Industry Sheds Light on Hiring Practices 4Shionogi & Co., Ltd. Announces That Naldemedine Meets Primary Endpoint In A Phase 3 Study For The Treatment Of Opioid-Induced Constipation 2Shionogi & Co., Ltd. Announces That Naldemedine Meets Primary Endpoint In A Phase 3 Study For The Treatment Of Opioid-Induced Constipation 3Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 2Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 3Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 4Neogen CEO adopts 10b5-1 Trading Plan 2
... and CLAREMONT, Calif., Jan. 18 /Xinhua-PRNewswire-FirstCall/ --,Kiwa ... KWBT),announced that it has held a meeting ... building the Company,s Distribution Network. Attendees included,representatives ... and provincial large volume agricultural products dealers., ...
... Corporation,(Nasdaq: ACEL ) today announced that it ... Scientific Protein Laboratories LLC (SPL) for the,commercial production ... is currently being evaluated as a treatment for,unresectable ... trial., "SPL has been involved in the ...
... Scientific studies on climate change, energy and alternative ... 145 million processing hours on supercomputers at Oak Ridge ... Novel Computational Impact on Theory and Experiment (INCITE) program. ... and government research facilities receive access to computing power ...
Cached Biology Technology:Kiwa Bio-Tech Products Group Holds Meetings to Build Distribution Network 2Kiwa Bio-Tech Products Group Holds Meetings to Build Distribution Network 3Alfacell Announces ONCONASE(R) Purchase and Supply Agreement with Scientific Protein Laboratories 2Alfacell Announces ONCONASE(R) Purchase and Supply Agreement with Scientific Protein Laboratories 3Oak Ridge leads DOE INCITE effort in 2008 2Oak Ridge leads DOE INCITE effort in 2008 3Oak Ridge leads DOE INCITE effort in 2008 4
(Date:3/19/2015)... OXFORD, Conn. , March 19, 2015  NXT-ID, Inc. ... biometric authentication company focused on the growing mobile commerce market, ... featured in a news clip that aired this week on ... http://www.myfoxdc.com/ ) . In a segment "The Next ... smart wallet ,a new way to pay, and ,a really ...
(Date:3/17/2015)...  MecklerMedia Corporation (OTCQX: MECK) announced its ... ever held in New York City ... 2015 at the Javits Convention Center. ... Acorn Product Development; Axis NJ; c-Link Systems; CoroWare; ... NewBotic Corporation; Neya Systems LLC; Reliabotics; RoboKind; RocketFarm ...
(Date:3/12/2015)... Beta Systems today announced ... management (IAM) solution for a fixed price and ... new IAM package, customers benefit from the 30 ... IAM implementations across different industries. The new fixed-price ... any necessary services and consulting. It spans the ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3MecklerMedia's RoboUniverse New York Announces Sponsors and Exhibitors, May 11-13, 2015 2Beta Systems Fast Forward IAM Available Now: a Standardized IAM Package at a Fixed Price 2
... interdisciplinary perspective. Presenters at the National Academy of Sciences, ... ways to identify, encourage, and support advances in climate ... other fields. In addition, U.S. Secretary ... Sackler Lecture beginning at 6 p.m. on March 31 ...
... Providing further understanding of the link between low birth ... deprived newborns are "programmed" to eat more because they ... that controls food intake, according to an article published ... The study by a team of researchers at Los ...
... of people commit suicide worldwide each year, researchers and ... person,s likelihood of thinking about or trying to commit ... Hospital del Mar Research Institute (IMIM) has participated, has ... suicides. "It is of key importance to identify suicidal ...
Cached Biology News:Study provides explanation for connection between low birth weight and obesity later in life 2First international index developed to predict suicidal behavior 2
FGF Receptor 1 Antibody...
Rabbit polyclonal to Kallikrein 1 ( Abpromise for all tested applications). Antigen: Full length native kallikrein from tissue (Human) Entrez Gene ID: 3816 Swiss Protein ID: P06870...
EDG-1CT (endothelial cell differentiation gene-1, C terminal)...
Mouse monoclonal [1-N-14] to Adenovirus Type 7 hexon C11 Immunogen: Purified Adenovirus type 7 Specificity: This antibody is specific for Adenovirus type 7 hexon C11....
Biology Products: