Navigation Links
Platinum is wrong stuff for fuel cells
Date:7/12/2012

Fuel cells are inefficient because the catalyst most commonly used to convert chemical energy to electricity is made of the wrong material, a researcher at Case Western Reserve University argues. Rather than continue the futile effort to tweak that material - platinum - to make it work better, Chemistry Professor Alfred Anderson urges his colleagues to start anew.

"Using platinum is like putting a resistor in the system," he said. Anderson freely acknowledges he doesn't know what the right material is, but he's confident that researchers' energy would be better spent seeking it out than persisting with platinum.

"If we can find a catalyst that will do this [more efficiently]," he said, "it would reach closer to the limiting potential and get more energy out of the fuel cell."

Anderson's analysis as well as a guide for a better catalyst have been published in a recent issue of Physical Chemistry Chemical Physics and in Electrocatalysis online.

Even in the best of circumstances, Anderson explains, the chemical reaction that produces energy in a fuel cell like those being tested by some car companies ends up wasting a quarter of the energy that could be transformed into electricity. This point is well-recognized in the scientific community, but to date efforts to address the problem have proved fruitless.

Anderson blames the failure on a fundamental misconception as to the reason for the energy waste. The most widely accepted theory says that impurities are binding to the platinum surface of the cathode and blocking the desired reaction.

"The decades-old surface-poisoning explanation is lame, because there is more to the story" Anderson said.

To understand the loss of energy, he used data derived from oxygen-reduction experiments to calculate the optimal bonding strengths between platinum and intermediate molecules formed during the oxygen-reduction reaction. The reaction takes place a
'/>"/>

Contact: Kevin Mayhood
kevin.mayhood@case.edu
216-368-4442
Case Western Reserve University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Theres more star-stuff out there but its not dark matter
2. Waste to watts: Improving microbial fuel cells
3. Diabetes drug makes brain cells grow
4. Patient-derived stem cells could improve drug research for Parkinsons
5. Tumor microenvironment helps skin cancer cells resist drug treatment
6. Study results: Adult stem cells from bone marrow
7. Amniotic fluid yields alternatives to embryonic stem cells
8. Myelodysplastic syndromes (MDS) linked to abnormal stem cells
9. Short stretches of piRNA evaluate cells genetic history
10. Regulation of telomerase in stem cells and cancer cells
11. Blood-brain barrier building blocks forged from human stem cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/25/2015)... CITY and BELLEVUE, Wash. ... leader in advanced robotic systems, announced today it will ... unmanned ground vehicle (UGV), at the National Tactical Officers ... The Guardian S is the first-ever ... culmination of years of research and in-field trials and ...
(Date:8/20/2015)... The wearable technology market has traditionally ... healthy. However, wearable technology has the potential to ... improve diagnostic capabilities and therapeutic outcomes. Today, Leaf ... Technologies Conference 2015 , where Barrett Larson ... healthcare.    "Over the past decade, ...
(Date:8/19/2015)... , Aug. 19, 2015  VOXX International Corporation ... has entered into a Definitive Agreement to purchase ... iris authentication market leader EyeLock through an acquiring ... have a controlling interest in the acquiring entity. ... completion of due diligence.  Expanding on its existing ...
Breaking Biology News(10 mins):Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5
... CHAMPAIGN, Ill. University of Illinois researchers are using ... weightiest questions in biology the relationship between cell mass ... computer engineering and bioengineering professor Rashid Bashir, published its results ... the National Academy of Sciences . "It,s merging micro-scale ...
... , LA JOLLA, CA-Fisetin, a naturally occurring compound ... slows the onset of motor problems and delays ... to researchers at the Salk Institute for Biological ... of Human Molecular Genetics , sets the ...
... ovarian cancer but new research from the Centenary Institute has ... new way that can break the resistance mechanism. Published ... (FTY720) had a potent effect in human ovarian cancer cells, ... chemotherapeutic drug currently available for the treatment of ovarian cancer. ...
Cached Biology News:Microsensors offer first look at whether cell mass affects growth rate 2Natural compound shows promise against Huntington's disease 2Natural compound shows promise against Huntington's disease 3New treatment to overpower drug resistance in ovarian cancer 2
(Date:8/26/2015)... ... 2015 , ... MediVet Biologics, a leader in Veterinary Regenerative ... open in Manhattan, Kansas in early October, 2015. The location of the lab ... development through collaboration with researchers from Kansas State University’s College of Veterinary Medicine. ...
(Date:8/26/2015)... , Aug. 26, 2015  The Diabetes ... the University of Miami Miller School of Medicine, ... clinical trial to test for the first time ... successfully completed.  This FDA approved Phase I/II study ... transplantation and is an important first step toward ...
(Date:8/26/2015)... China Cord Blood Corporation (NYSE: CO ... provider of cord blood collection, laboratory testing, hematopoietic stem ... that the Company has been informed that Magnum Opus ... by Mr. Yuen Kam, chairman of the board of ... (the "Shares") of  Excellent China Healthcare Investment Limited ("KKR ...
(Date:8/26/2015)... ... ... The 2015 Epigenomics & Metabolomics Meeting in Boston was an ideal ... share the first report on progress with its crowdsourcing campaign designed to evaluate rapidly ... , With a name like “H2A.Z asymmetry,” the new biomarker would require detailed explication ...
Breaking Biology Technology:MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 2China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 3Asymmetrex Reports Positive Indicators for Crowdsourcing Campaign to Evaluate New Biomarker for Counting Adult Tissue Stem Cells for the First Time 2Asymmetrex Reports Positive Indicators for Crowdsourcing Campaign to Evaluate New Biomarker for Counting Adult Tissue Stem Cells for the First Time 3Asymmetrex Reports Positive Indicators for Crowdsourcing Campaign to Evaluate New Biomarker for Counting Adult Tissue Stem Cells for the First Time 4
... Christine Lawless, MD, has accepted the position as Medical ... medical education (CME), beginning March 2, 2009. Recognized as ... cardiology, Dr. Lawless recently completed her clinical tenure at ... she was Associate Professor of Internal Medicine and Co-Director ...
... March 10 SeqWright, a world-wide leader in custom ... has been granted a California clinical laboratory license. ... and Single Nucleotide Polymorphism (SNP) Genotyping expertise in order ... a significant step forward in the shift towards personalized ...
... American Pacific Corporation (Nasdaq: APFC ) is ... Chemicals LLC (AFC), located near Sacramento California, recently inaugurated ... The new facility can accommodate either batch reactors (20 ... using up to 7 reactors from 0.25 to 1 ...
Cached Biology Technology:Former President of Sports Cardiology Consultants, LLC Christine Lawless, MD, MBA, ABCL, FACC, FACSM, Named Medical Director of CME Enterprise 2California Grants SeqWright License to Operate as a Clinical Laboratory 2AMPAC Fine Chemicals Announces the Inauguration of the New cGMP Continuous Processing Development Facility 2
... consist of seven reduced, denatured proteins (equine ... rabbit muscle GAPDH, bovine muscle actin, BSA, ... ranging from 4.5 to 8.5 and molecular ... 2-D standards provide calibrated references for the ...
The sealed ice cooling unit is used to absorb heat that is generated during transfers performed in the Criterion blotter....
StemSep Anti-Phycoertherin Tetrameric Antibody Complexes, 2 mL for labeling 1x10 9 cells. Cross-linking Reagent for StemSep Separations of Cells Labeled with PE-conjugated Antibody....
4',6-Diamidino-2-phenylindole, dihydrochloride (DAPI)...
Biology Products: