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- Title
Hierarchical Nanowire Arrays Based on ZnO Core−Layered Double Hydroxide Shell for Largely Enhanced Photoelectrochemical Water Splitting.
- Authors
Shao, Mingfei; Ning, Fanyu; Wei, Min; Evans, David G.; Duan, Xue
- Abstract
Well-aligned hierarchical nanoarrays containing ZnO core and layered double hydroxide (LDH) nanoplatelets shell have been synthesized via a facile electrosynthesis method. The resulting ZnO@CoNi-LDH core−shell nanoarray exhibits promising behavior in photoelectrochemical water splitting, giving rise to a largely enhanced photocurrent density as well as stability; much superior to those of ZnO-based photoelectrodes. This is attributed to the successful integration of photogenerated electron-hole separation originating from the ZnO core and the excellent electrocatalytic activity of LDH shell. This work provides a facile and cost-effective strategy for the fabrication of multifunctional nanoarrays with a hierarchical structure, which can be potentially used in energy storage and conversion devices.
- Subjects
NANOWIRES; HIERARCHIES; ZINC oxide; LAYERED double hydroxides; PHOTOELECTROCHEMISTRY; OXYGEN-evolving complex (Photosynthesis); ENERGY storage
- Publication
Advanced Functional Materials, 2014, Vol 24, Issue 5, p580
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.201301889