HOME >> BIOLOGY >> NEWS
Researchers engineer low-cost hydrogen catalyst

MADISON It is thousands of times less expensive than platinum and works nearly as well.

Writing this week in the journal Science (June 27) University of Wisconsin-Madison chemical and biological engineers report the discovery of a nickel-tin catalyst that can replace the precious metal platinum in a new, environmentally sustainable, greenhouse-gas-neutral, low-temperature process for making hydrogen fuel from plants.

The new catalyst, together with a second innovation that purifies hydrogen for use in hydrogen fuel cells, offers new opportunities toward the transition of a world economy based on fossil fuels to one based on hydrogen produced from renewable resources.

James Dumesic, a professor of chemical and biological engineering, and graduate students George Huber and John Shabaker describe testing more than 300 materials to find a nickel-tin-aluminum combination that reacts with biomass-derived oxygenated hydrocarbons to produce hydrogen and carbon dioxide without producing large amounts of unwanted methane.

"Platinum is very effective but it's also very expensive," says Dumesic. "It's also problematic for large-scale power production because platinum is already in demand for use as anode and cathode materials in hydrogen fuel cells. We knew nickel was very active, but it allowed reaction to continue beyond hydrogen producing methane. We found that adding tin to what's known as a Raney-Nickel catalyst decreased the rate of methane formation without compromising the rate of hydrogen production."

Dumesic, research scientist Randy Cortright (now at Virent Energy Systems) and graduate student Rupali Davda first reported the catalytic reforming process for hydrogen production in the Aug. 29, 2002 issue of the journal Nature.

The simple, single-step process employs temperature, pressure and a catalyst to convert hydrocarbons such as glucose, the same energy source used by most plants and animals, into hydrogen, carb
'"/>

Contact: James Dumesic
dumesic@engr.wisc.edu
608-262-1095
University of Wisconsin-Madison
26-Jun-2003


Page: 1 2 3

Related biology news :

1. Researchers determine genetic cause of Timothy syndrome
2. Researchers find color sensitive atomic switch in bacteria
3. Researchers identify protein promoting vascular tumor growth
4. Researchers devise potent new tools to curb ivory poaching
5. Researchers create nanotubes that change colors, form nanocarpet and kill bacteria
6. Researchers ID chlorophyll-regulating gene
7. Researchers develop fast track way to discover how cells are regulated
8. Researchers identify distinctive signature for metastatic prostate cancer
9. Researchers report new gene test for isolated cleft lip and palate
10. Researchers discover why mutant gene causes colon cancer
11. Researchers identify the genomes controlling elements

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Researchers engineer low cost hydrogen catalyst

(Date:11/5/2014)... -Individuals show great diversity in their ability to identify ... greatly differ in their perceptual evaluation of odors, with ... , Sex differences in olfactory detection may ... be connected to one,s perception of smell, which is ... olfactory superiority has been suggested to be cognitive or ...
(Date:11/4/2014)... (November 4, 2014) — Think about the way our ... do neighboring cells know that they are supposed to ... do these tissues find the correct place and alignment? ... these crucial questions. , In a new study, UM ... communicate with their surrounding neighbors, at the head-trunk region. ...
(Date:11/4/2014)... Nov. 4, 2014   Neurotechnology , a ... that the latest version of its fingerprint matching ... Ongoing MINEX evaluation organized by NIST. The ... using the INCITS 378 fingerprint standard template format. ... public tenders in the United States ...
Breaking Biology News(10 mins):The female nose always knows: Do women have more olfactory neurons? 2The inside story: How the brain and skull stay together 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 3
(Date:11/24/2014)... One of the most extensive, widely cited ... is now available to high school and junior college students ... the international society for optics and photonics , announced today ... Digital Library available to high schools for free and ... integral to all areas of life in today’s world,” said ...
(Date:11/24/2014)... (PRWEB) November 24, 2014 Continental ... patient populations into clinical trials at its mid-Atlantic ... , “Continental was created with the idea of ... a fundamental role in medical advances," said Continental's ... syphilis experiment to the immortal cell line of ...
(Date:11/24/2014)... 2014 Deep Research Report on ... professional and in-depth research report on the Adipic ... its definition, classification, application, and industry chain structure ... the international market analysis, including China’s domestic market ... Europe, Asia, China, Japan etc. regions) industry analysis ...
(Date:11/24/2014)... 2014 The new video, “ ... TOLEDO demonstrates how to reduce the number of ... sample panel design can be complicated, requiring multiple ... against corrosion and deposition. Dedicated single and dual ... of panel space. Additionally, installing and maintaining each ...
Breaking Biology Technology:SPIE Digital Library Now Available to High Schools, Two-Year Colleges at No or Low Cost 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 3Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 2Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 3New Video Shows How to Simplify Cycle Chemistry Sample Panels to Save Time and Costs 2
Cached News: