Navigation Links
Livermore Team Awarded for Hydrogen Production Research
Date:8/29/2014

Livermore, California (PRWEB) August 29, 2014

Three Lawrence Livermore researchers have received the Department of Energy's 2014 Hydrogen Production R&D Award for their research in producing hydrogen photoelectrochemically -- by splitting water using sunlight.

Shared with collaborators from the National Renewable Energy Laboratory (NREL) and the University of Nevada, Las Vegas (UNLV), the award recognizes the team for its work developing models of photoelectrochemical solar-hydrogen production and corrosion processes.

These models have been crucial in the development of corrosion mitigation strategies for high-efficiency devices based on III-V semiconductor materials, offering a viable pathway to meet DOE's ultimate cost targets in renewable hydrogen production.

The Livermore team is made up of Tadashi Ogitsu, Brandon Wood and Woon Ih Choi. The Livermore team used quantum-mechanical models to characterize and optimize photoelectrode surfaces for solar to hydrogen fuel conversion.

To break it down simply, the project team develops materials to produce hydrogen by splitting water molecules, using sunlight as the only source of energy. Effectively, the process combines a photovoltaic (solar-cell) and with water electrolysis, but in a tightly coupled way. The system consists of a water-immersed semiconductor, which absorbs sunlight and generates electricity, and a co-catalyst (such as a platinum nanoparticle) that is dispersed on top of the semiconductor to aid in evolving H2 gas from water.

Ogitsu said the award is tied to a recent Journal of the American Chemical Society paper the team published in which a new type of hydrogen evolution mechanism and a way to optimize device performance was discussed.

For the project, NREL researchers design, assemble, and analyze the performance of photoelectrochemical cells based on carefully grown compound semiconductors of Ga, In and P. However, since these high efficiency devices tend to be prone to photo-corrosion, NREL has also been working with the Livermore and UNLV teams to improve their durability. As an example, the project team recently discovered that certain types of surface treatments such as nitrogen implantation can act in concert with specific cocatalysts to dramatically improve device lifetime.

In addition to modeling the device chemistry itself, the Livermore team plays an integral role in interpreting and analyzing the data from the experimental characterization team, which is led by UNLV. Electrode samples provided by NREL are analyzed at the Advanced Light Source at Lawrence Berkeley National Laboratory using X-ray synchrotron spectroscopy, which offers information about the local surface and interface structure. The Livermore team performs spectroscopy calculations of model surfaces to compare directly to the experiments and identify the key underlying mechanisms of durability improvement.

Read the full story at http://www.prweb.com/releases/2014/08/prweb12129753.htm.


'/>"/>
Source: PRWeb
Copyright©2014 Vocus, Inc.
All rights reserved

Related biology technology :

1. Lawrence Livermore engineering team makes breakthrough in solar energy research
2. Livermore Scientists Part of Organization That Will Receive Nobel Peace Prize Tuesday
3. Lawrence Livermore Biodetection Technology Could Screen for Emerging Viral Diseases
4. K computer research results awarded ACM Gordon Bell Prize
5. BioPower Systems Awarded $5 Million from Victorian Government
6. Fox Insurance Company Awarded $3.3 Million in Arbitration Against Former Pharmacy Benefit Manager
7. Ampio Pharmaceuticals Awarded Canadian Composition of Matter Patent That Strengthens IP Protection for Its Key Drug Ampion™
8. Sofie Biosciences Is Awarded a US Patent on a Family of Novel PET Probes for Use in Oncology and Immunology
9. Chinese Scientists Zhen-Yi Wang and Zhu Chen Awarded 7th Annual Szent-Gyorgyi Prize for Progress in Cancer Research
10. EUR 1.0 Million Grant Awarded to Exosome Diagnostics and Ludwig Maximilian University from German Federal Ministry for Education and Research to Develop Biofluid-Derived Exosome Diagnostics
11. Sloan Research Fellowships Awarded to 126 Young Scholars
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/3/2016)... , ... May 03, 2016 , ... In a list ... out of the state’s 76 fastest-growing private companies; a small percentage of the state's ... ranked organizations on the percent change in revenue from 2012 to 2015. ...
(Date:5/3/2016)... ... May 03, 2016 , ... ... addition of Dr. Nancy Gillett to its Board of Directors. Dr. Gillett recently ... as Corporate Executive Vice President and Chief Scientific Officer. A board-certified veterinary pathologist, ...
(Date:5/3/2016)... (PRWEB) , ... May 03, 2016 , ... ... NeuroTech NYC , the sensor and data driven conferences, will take place on June 7-8, ... UnitedHealth's Vidya Raman-Tangella on incorporating technology -- including AR/VR, machine learning, ...
(Date:5/3/2016)... May 3, 2016  Dr. Thomas P. McHugh ... The Woodlands, Texas , now offers ... of treated fat cells in just 25-minutes, leaving a ... 90 percent of Americans report feeling bothered by excess ... reduction procedures are a growing industry. This innovative new ...
Breaking Biology Technology:
(Date:3/11/2016)... 2016 http://www.apimages.com ) - --> ... available at AP Images ( http://www.apimages.com ) - ... to produce the new refugee identity cards. DERMALOG will be unveiling ... in Hanover next week.   --> ... used to produce the new refugee identity cards. DERMALOG will be ...
(Date:3/9/2016)... Germany , March 9, 2016 ... country,s government identified that more than 23,000 public service ... or had been receiving their salary unlawfully.    ... African country,s government identified that more than 23,000 public ... name or had been receiving their salary unlawfully.    ...
(Date:3/3/2016)... and DE SOTO, Kansas , ... Stroke Detection Plus® to offer Oncimmune,s Early CDT®-Lung, ... and early detection of lung cancer Early ... unions and individuals. --> Early CDT®-Lung test ... individuals. --> Oncimmune, a leader in early ...
Breaking Biology News(10 mins):