Frontispiece: Chemical Vapor Deposition of FeOCl Nanosheet Arrays and Their Conversion to Porous α-Fe2O3 Photoanodes for Photoelectrochemical Water Splitting

• Published in: Chemistry : a European journal Vol. 21; no. 50
• Main Authors: Wang, Chong Wu, Yang, Shuang, Jiang, Hai Bo, Yang, Huagui
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 07.12.2015; WILEY‐VCH Verlag
• Subjects: alpha-Fe2O3; FeClO; nanosheet arrays; photoelectrochemistry; water splitting
• ISSN: 0947-6539; 1521-3765
• DOI: 10.1002/chem.201585061

Water Splitting Hematite porous nanosheet arrays (NSAs) have been successfully synthesized through chemical vapor deposition of FeOCl NSAs followed by a subsequent annealing treatment. The obtained hematite electrode exhibits numerous advantages for application in photoelectrochemical water splitting, including superior light harvesting properties, an increased semiconductor/electrolyte interface for water oxidation, as well as fast charge transport properties. Remarkably, the porous NSA electrode is found to exhibit a much enhanced photocurrent compared with that of a planar electrode. Furthermore, the production method developed herein is very simple and continuous, which can pave the way for the large‐scale production of a highly efficient Fe‐based semiconductor. For more details see the Communication by H. Yang et al. on page 18024 ff.