Issue 71, 2014

A morphology effect of hematite photoanode for photoelectrochemical water oxidation

Abstract

Hematite has been a popular photoanode for photoelectrochemical water splitting; however, its performance varies widely in the literature. In-depth understanding of the structure–performance relationship of hematite photoanode is still lacking. Here, we report a finding that without the use of co-catalysts or any alteration in crystal structure, the performance of hematite photoanode can be markedly improved by properly enlarging the space among α-Fe2O3 nanocrystalline, i.e., by increasing the pore size in the electrode. Such a finding indicates that in addition to the known catalytic and crystal effects, the internal structure of the hematite electrode is also a very sensitive factor to PEC efficiency.

Graphical abstract: A morphology effect of hematite photoanode for photoelectrochemical water oxidation

Article information

Article type
Communication
Submitted
14 Jun 2014
Accepted
04 Aug 2014
First published
05 Aug 2014

RSC Adv., 2014,4, 37701-37704

A morphology effect of hematite photoanode for photoelectrochemical water oxidation

Z. Liu, K. Wang, L. Xiao, X. Chen, X. Ren, J. Lu and L. Zhuang, RSC Adv., 2014, 4, 37701 DOI: 10.1039/C4RA05733C

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