Surface treatment of hematite photoanodes with zinc acetate for water oxidation

Title
Surface treatment of hematite photoanodes with zinc acetate for water oxidation
Author
Tran Dinh Phong
Keywords
THIN-FILMS; ELECTRODES; NANOSTRUCTURES
Issue Date
2012-03
Publisher
Royal SOC Chemistry
Citation
Nanoscale, 2012, 4(15), P.4430-4433
Abstract
A simple and inexpensive method to form a hematite photoanode for efficient water oxidation is reported. A very thin ZnO overlayer was deposited on top of a thin film of hematite and found, compared with non-treated hematite, to increase the photocurrent and reduce the onset potential for generating oxygen from water. After 3 cycles of ZnAc treatment, the photocurrent increased more than 40% to 1.08 mA cm(-2) at 0.23 V vs. Ag/AgCl and onset potential for water oxidation shifted by -170 mV. It is proposed that the ZnO overlayer changes the flat band potential of hematite and reduces the surface defects.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2012/NR/c2nr30862b#!divAbstracthttp://repository.hanyang.ac.kr/handle/20.500.11754/69471
ISSN
2040-3372
DOI
10.1039/c2nr30862b
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE