An exceptionally facile method to produce layered double hydroxides on a conducting substrate and their application for solar water splitting without an external bias
SCIE
SCOPUS
- Title
- An exceptionally facile method to produce layered double hydroxides on a conducting substrate and their application for solar water splitting without an external bias
- Authors
- Seungho Cho; Ji-Wook Jang; Park, YB; Jae Young Kim; Ganesan Magesh; Jin Hyun Kim; Minsu Seol; Kijung Yong; Lee, KH; Jae Sung Lee
- Date Issued
- 2014-07
- Publisher
- Royal Society of Chemistry
- Abstract
- An exceptionally facile process is presented for in situ formation of zinc chromium layered double hydroxide (ZnCr:LDH) nanosheets on a conducting substrate. Thus, ZnCr:LDH nanosheets were synthesized from a metallic Zn film/fluorine-doped tin oxide (FTO) glass by simply dipping into a Cr nitrate solution for only one minute at room temperature. Then, ZnCr:LDHs were converted into zinc chromium mixed metal oxide (ZnCr:MMO) nanoparticles by calcination. Under visible light irradiation (lambda > 420 nm), the in situ synthesized ZnCr:MMO photoanode exhibited a stable and an order-of-magnitude higher activity for photoelectrochemical water splitting than that of a ZnCr:MMO film fabricated ex situ by electrophoretic deposition of already-synthesized ZnCr:MMO powders. More significant was that it generated anodic photocurrents even without an externally applied bias potential, which is an unprecedented result for an oxide photoanode-driven PEC system working under visible light.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/13744
- DOI
- 10.1039/C3EE43965H
- ISSN
- 1754-5692
- Article Type
- Article
- Citation
- ENERGY & ENVIRONMENTAL SCIENCE, vol. 7, no. 7, page. 2301 - 2307, 2014-07
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