Navigation Links
Nanonets give rust a boost as agent in water splitting's hydrogen harvest
Date:2/9/2011

CHESTNUT HILL, MA (2/9/2011) Coating a lattice of tiny wires called Nanonets with iron oxide known more commonly as rust creates an economical and efficient platform for the process of water splitting, an emerging clean fuel science that harvests hydrogen from water, Boston College researchers report in the online edition of the Journal of the American Chemical Society.

Assistant Professor of Chemistry Dunwei Wang and his clean energy lab pioneered the development of Nanonets in 2008 and have since shown them to be a viable new platform for a number of energy applications by virtue of the increased surface area and improved conductivity of the nano-scale netting made from titanium disilicide, a readily available semiconductor.

Wang and his team report that coating the Nanonets with hematite, the plentiful mineral form of iron oxide, showed the mineral could absorb light efficiently and without the added expense of enhancing the material with an oxygen evolving catalyst.

The results flow directly from the introduction of the Nanonet platform, Wang said. While constructed of wires 1/400th the size of a human hair, Nanonets are highly conductive and offer significant surface area. They serve dual roles as a structural support and an efficient charge collector, allowing for maximum photon-to-charge conversion, Wang said.

"Recent research has shown that the use of a catalyst can boost the performance of hematite," said Wang. "What we have shown is the potential performance of hematite at its fundamental level, without a catalyst. By using this unique Nanonet structure, we have shed new light on the fundamental performance capabilities of hematite in water splitting."

On its own, hematite faces natural limits in its ability to transport a charge. A photon can be absorbed, but has no place to go. By giving it structure and added conductivity, the charge transport abilities of hematite increase, said Wang. Water splitting, a chemical reaction that separates water into oxygen and hydrogen gas, can be initiated by passing an electric current through water. But that process is expensive, so gains in efficiency and conductivity are required to make large-scale water splitting an economically viable source for clean energy, Wang said.

"The result highlights the importance of charge transport in semiconductor-based water splitting, particularly for materials whose performance is limited by poor charge diffusion," the researchers report in the journal. "Our design introduces material components to provide a dedicated charge transport pathway, alleviates the reliance on the materials' intrinsic properties, and therefore has the potential to greatly broaden where and how various existing materials can be used in energy-related applications."


'/>"/>

Contact: Ed Hayward
ed.hayward@bc.edu
617-552-4826
Boston College
Source:Eurekalert  

Related biology technology :

1. Scientists grow nanonets able to snare added energy transfer
2. Silicon-coated nanonets could build a better lithium-ion battery
3. Developer of nanonets snares National Science Foundation Career Award
4. ICON Medical Imaging Launches New Service to Boost Reliability of Cardiology Studies
5. Immureboost Inc Announces a Change of Name to Fountain Healthy Aging Inc
6. Cyntellect Launches CellXpress(TM) System to Boost Productivity of Biopharmaceutical Process Development
7. New Bill to Expand Promotion of Biofuels Is a Welcome Boost for U.S.-Brazil Relations According to Brazilian Sugarcane Industry
8. New Study Finds Growth Factor Boosts Productivity in Mammalian Cell Culture
9. First tunable, noiseless amplifier may boost quantum computing, communications
10. Waters Corporation Gives Boost to Clinical Research Programs at University of Sherbrooke Hospital
11. New nanocluster to boost thin films for semiconductors
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nanonets give rust a boost as agent in water splitting's hydrogen harvest
(Date:2/23/2017)... FRANCISCO , Feb. 23, 2017   ViaCyte, ... Type 1, a not-for-profit advocacy and education group for ... grant from Beyond Type 1 to support ViaCyte,s efforts ... other insulin-requiring diabetes.  For more than ... cell replacement therapies with a focus on the treatment ...
(Date:2/22/2017)... Feb. 22, 2017  PrimeVax Immuno-Oncology, Inc. announced today ... at the Annual Biocom Global Life Science Partnering Conference.  ... 11:15 AM, at the Torrey Pines Lodge, in San ... organizers at Biocom who have chosen our company, amongst ... biotechnology companies, investors, and clinical researchers," said Mr. Chen. ...
(Date:2/22/2017)... ... ... LabRoots , the leading provider of educational and interactive virtual events ... the launch of a new scholarship for young scientists seeking a degree in any ... open to all high school seniors, 17 years or older; as well as those ...
(Date:2/22/2017)... ... February 22, 2017 , ... Pharma and ... Perkins as European director. Operating from Pennside’s Zurich headquarters, Pennside Partners, GmbH, Mr. ... joins Pennside after more than a decade with leading market research firm, GfK. ...
Breaking Biology Technology:
(Date:2/10/2017)... -- Research and Markets has announced the ... Scientific and Commercial Aspects" to their offering. ... Biomarkers play ... therapy for selection of treatment as well for monitoring the ... disease in modern medicine. Biochip/microarray technologies and next generation sequencing ...
(Date:2/8/2017)...  Aware, Inc. (NASDAQ: AWRE ), a leading ... for its quarter and year ended December 31, 2016. ... $3.9 million compared to $6.9 million in the same quarter ... was $0.6 million compared to $2.6 million in the fourth ... 2016 was $0.5 million, or $0.02 per diluted share, which ...
(Date:2/8/2017)... , Feb. 7, 2017 Report Highlights ... billion by 2021 from $8.3 billion in 2016 at ... 2016 to 2021. Report Includes - An overview ... global market trends, with data from 2015 and 2016, ... 2021. - Segmentation of the market on the basis ...
Breaking Biology News(10 mins):