Pt-doped α-Fe2O3 thin films active for photoelectrochemical water splitting

Hu, Yong-Sheng, Kleiman-Shwarsctein, Alan, Forman, Arnold J., Hazen, Daniel, Park, Jung-Nam and McFarland, Eric W. (2008) Pt-doped α-Fe2O3 thin films active for photoelectrochemical water splitting. Chemistry of Materials, 20 12: 3803-3805. doi:10.1021/cm800144q


Author Hu, Yong-Sheng
Kleiman-Shwarsctein, Alan
Forman, Arnold J.
Hazen, Daniel
Park, Jung-Nam
McFarland, Eric W.
Title Pt-doped α-Fe2O3 thin films active for photoelectrochemical water splitting
Journal name Chemistry of Materials   Check publisher's open access policy
ISSN 0897-4756
1520-5002
Publication date 2008-06-24
Sub-type Article (original research)
DOI 10.1021/cm800144q
Open Access Status Not yet assessed
Volume 20
Issue 12
Start page 3803
End page 3805
Total pages 3
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Subject 2505 Materials Chemistry
2500 Materials Science
Abstract In an attempt to improve photoelectrochemical (PEC) processes that is important in solar-to-chemical energy conversion, various materials have been proposed that have the potential for hydrogen production. For instance, hematite has many advantages for hydrogen production since it is somehow stable, has a relatively narrow bandgap, inexpensive, abundant and environmentally responsible. However, their use in PEC devices have been limited by several factors like poor conductivity and high electron-hole pair recombination rates. Strategies to overcome this limitation have been produced such as designing the hematite structure to permit more efficient transport and collection of photogenerated charge carriers. Others include the addition of surface electrocatalysts on iron oxide photoelectrodes, and doping the iron oxide with heteroatoms. Dopant species have also been introduced in the literature. However, there have been few reports on the synthesis of hematite films by electrodeposition and virtually no reports of electrodeposition of doped hematite. As such, an electrochemical route to prepare thin film photoanodes of nanocrystalline Pt-doped iron oxide has been proposed. It showed improvements in the performance of PEC when compared to pure iron oxide thin films.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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