Navigation Links
Oregon researchers shed new light on solar water-splitting process
Date:12/2/2013

vice known as a bipotentiostat. Lin focused on oxygen-evolution reaction -- the most difficult and inefficient step in the water-splitting process.

"This experiment allowed us to watch charge accumulate in the catalyst and change the catalyst's voltage," Boettcher said. It turns out, Lin said, that a thin layer of ion-porous electrocatalyst material works best, because the properties of the interface with the semiconductor adapt during operation as the charges excited by sunlight flow from the semiconductor onto the catalyst.

The research was designed to understand how maximum energy might be extracted from excited electrons in a semiconductor when the electrons enter the catalyst, where a chemical reaction separates oxygen and hydrogen. To date, Lin said, researchers have been experimenting with materials for creating efficient and cost-effective devices, but minimizing the energy loss associated with the catalyst-semiconductor interface has been a major hurdle.

In the study, Lin compared the movement of electrons between semiconductors coated with porous nickel oxyhydroxide -- a film previously shown by Boettcher's lab to yield excellent electrocatalytic efficiency for separating oxygen from water -- with semiconductors modified with non-permeable films of iridium oxide.

"The ion porous material allows water and ions to permeate the catalyst material," Lin said. "When these catalysts are in solution the catalyst's energy can move up and down as its oxidation state changes."

Catalysts with non-porous structures in semiconductor-catalytic junctions don't show this behavior and typically don't work as well, said Boettcher, who also is a member of Oregon BEST (Oregon Built Environment & Sustainable Technologies Center), a state signature initiative.

Converting sunlight into energy and storing it for later use in an economically viable way is a major challenge in the quest to replace fossil fuels with renewable ener
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Portland Medical Marijuana Clinic - The Aurora Clinic - Now Offering Complimentary Telephone Consultations for Washington and Oregon Medical Marijuana Cards
2. Infrared vision lets researchers see through -- and into -- multiple layers of graphene
3. Researchers develop technique to convert thermoelectric material into high performance electricity
4. UT Austin researchers grow large graphene crystals that have exceptional electrical properties
5. Researchers at Penn add another tool in their directed assembly toolkit
6. York researchers discover important mechanism behind nanoparticle reactivity
7. Researchers discover how retinal neurons claim the best brain connections
8. Researchers measure flow from a nanoscale fluid jet
9. Researchers advance scheme to design seamless integrated circuits etched on graphene
10. Harvard researchers, pharma experts offer recommendations to expand access to clinical trial data
11. Virginia Tech researchers publish study on jellyfish energy consumption that will improve bio-inspired robotic designs for Navy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Oregon researchers shed new light on solar water-splitting process
(Date:10/1/2014)... 2014 Industry leaders from ... engage around the theme, ,Commercial Opportunities in the Era ... Elsevier , a world-leading provider of ... host a gathering of some of the industry,s most ... healthcare today and in the future. The ...
(Date:9/30/2014)... German . , ... demonstrated a new kind of building block for digital ... could be based on three-dimensional arrangements of nanometer-scale magnets ... the semiconductor industry CMOS fabrication of silicon chips ... at the University of Notre Dame are exploring "magnetic ...
(Date:9/30/2014)... Report Details Biosimilar drugs – ... Do you want to find sales potentials of ... for those biological drugs from 2014, helping you ... data, R&D trends, opportunities and selling prospects. In ... 2024 at overall world market, therapeutic class, molecule ...
(Date:9/30/2014)... Over the last decade, the laboratory ... R&D budgets and increased acceptance of new filtration technologies ... biotechnology industries are also catalyzing the growth of laboratory ... expected to grow at a strong CAGR during the ... worth $2,532.6 million by 2019. The market is mainly ...
Breaking Biology Technology:Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3A new dimension for integrated circuits: 3-D nanomagnetic logic 2A new dimension for integrated circuits: 3-D nanomagnetic logic 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 2Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 3Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 4Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 5
... June 29 Sirnaomics, Inc. ( www.sirnaomics.com ) ... (Small Business Innovation Research) grants from National Cancer Institute ... Diseases  (NIAID), of National Institute of Health ... 2007, is dedicated to developing RNA interference (RNAi) therapeutics ...
... June 29, 2010 Cardio3,BioSciences, a leading Belgian biotechnology ... positive safety data and preliminary efficacy results from its,clinical trial of ... , , ... showed C-Cure to have a very good safety profile with no ...
... DALLAS, Texas , June 29, 2010 , ... - ReportsandReports Announces it Will Carry the Disease and Therapy,Review: Impetigo Market ... Browse the complete ... The Impetigo Disease and ...
Cached Biology Technology:Sirnaomics Receives Two SBIR Grants from NIH for Developing siRNA Therapeutics to Treat Glioblastoma and Influenza Infection 2Sirnaomics Receives Two SBIR Grants from NIH for Developing siRNA Therapeutics to Treat Glioblastoma and Influenza Infection 3Sirnaomics Receives Two SBIR Grants from NIH for Developing siRNA Therapeutics to Treat Glioblastoma and Influenza Infection 4Cardio3 BioSciences Reports Positive Three-Month Data From its Clinical Trial of C-Cure(R) in Heart Failure 2Cardio3 BioSciences Reports Positive Three-Month Data From its Clinical Trial of C-Cure(R) in Heart Failure 3Cardio3 BioSciences Reports Positive Three-Month Data From its Clinical Trial of C-Cure(R) in Heart Failure 4Cardio3 BioSciences Reports Positive Three-Month Data From its Clinical Trial of C-Cure(R) in Heart Failure 5Disease and Therapy Review: Impetigo Now Available at ReportsandReports 2Disease and Therapy Review: Impetigo Now Available at ReportsandReports 3Disease and Therapy Review: Impetigo Now Available at ReportsandReports 4Disease and Therapy Review: Impetigo Now Available at ReportsandReports 5
(Date:9/30/2014)... --- Do we think of nature as something that we ... need to "preserve?" Or do we think of ourselves as ... of nature, but what about a house? , The ... also reflected in our actions, our speech and in cultural ... the University of Washington, the American Indian Center of Chicago ...
(Date:9/30/2014)... The National Institutes of Health (NIH) awarded ... to develop an electrode array system that will ... works through unprecedented resolution and scale. , LLNL,s ... support President Obama,s BRAIN (Brain Research through ... effort to revolutionize our understanding of the human ...
(Date:9/30/2014)... New England Journal of Medicine reports positive results ... crizotinib against the subset of lung cancer marked by ... of 50 patients with advanced non-small cell lung cancer ... was 72 percent, with 3 complete responses and 33 ... takes for the disease to resume its growth after ...
Breaking Biology News(10 mins):The cultural side of science communication 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 3NEJM: Crizotinib effective in Phase 1 trial against ROS1 lung cancer 2
... (April 17, 2011) Michael Croft, Ph.D., a researcher ... has discovered a molecule,s previously unknown role as a ... making the molecule a promising therapeutic target for chronic ... lung conditions. A scientific paper on Dr. Croft,s ...
... WASHINGTON, D.C. April 14, 2011 ... Drug Administration (FDA) approved the NovoTTF-100A System (NovoTTF) ... multiforme (GBM) brain tumors, following tumor recurrence after ... an anti-mitotic, anti-cancer therapy as patients maintain their ...
... of the world,s two best-loved flavours and demand for it ... the global food industry could be more secure, thanks to ... is a compound that comes from the vanilla bean, the ... tropical, climbing vine originally cultivated by ancient Central American civilisations ...
Cached Biology News:La Jolla Institute identifies new therapeutic target for asthma, COPD and other lung disorders 2La Jolla Institute identifies new therapeutic target for asthma, COPD and other lung disorders 3FDA approves the NovoTTF-100A system for the treatment of patients with recurrent glioblastoma multiforme (GBM) brain tumors 2Preserving a world favorite flavour 2
... CoA ligase (AMP forming), Acetate thiokinase ... content. Physical form: Lyophilized powder ... reduced glutathione Preparation Unit Definition: ... S-acetyl coenzyme A from acetate, ATP and ...
... The pYD1 Yeast Display Vector is specifically ... on the surface of Saccharomyces cerevisiae. Displayed ... to interact with known or putative ligands. ... which consists of two domains Aga1 and ...
... Mut S is a member of a class ... of the DNA sequence. Mut S plays an ... DNA ,replication, in transcription-coupled nucleotide excision repair and ... bacteria. Mut S binds to DNA specifically at ...
15(S)-HEDE is produced from 11Z,14Z-eicosadienoic acid by 15-LO. 15(S)-HEDE is an inhibitor of RBL-1 cell 5-LO with an IC50 value of 26 µM....
Biology Products: