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  4. Cd-ZnGeON solid solution: the effect of local electronic environment on the photocatalytic water cleavage ability
 
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Cd-ZnGeON solid solution: the effect of local electronic environment on the photocatalytic water cleavage ability

Journal
Journal of Materials Chemistry A
Journal Volume
1
Journal Issue
25
Pages
7422-7432
Date Issued
2013
Author(s)
Chouhan, Neelu
RU-SHI LIU  
Hu, Shu-Fen
DOI
10.1039/c3ta11192j
URI
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000319886500018&KeyUID=WOS:000319886500018
http://scholars.lib.ntu.edu.tw/handle/123456789/377783
Abstract
The efficiency of hydrogen generation through photocatalytic water cleavage was elucidated for calcinated Cd-ZnGeON host systems. The electronic structures of the Cd-ZnGeON solid solution were explored via synchronized X-ray diffraction, X-ray absorption spectroscopy at the K-edge for elements O, N, Zn and Ge, X-ray photoelectron spectroscopy, diffuse reflection spectroscopy, and high-resolution transmission electron microscopy, etc., which were used as sensitive analytical probes. A good correlation was observed between the ability of Cd-ZnGeON for photocatalytic water splitting and the local atomic arrangement in its lattice. Based on advanced structural information about the solid solution, a concise lattice-model was proposed for hydrogen generation through water splitting. The electron-transfer route for hydrogen generation via photocatalytic water cleavage was also traced. The results reveal that the wurtzite Cd-ZnGeON calcinated at 600 °C generates a large amount of hydrogen (3647.25 μmol H2 h-1 g-1). © The Royal Society of Chemistry 2013.
SDGs

[SDGs]SDG7

Other Subjects
Electronic structure; Germanium; Hydrogen production; Photoelectrons; Transmission electron microscopy; X ray absorption spectroscopy; X ray diffraction; X ray photoelectron spectroscopy; Zinc sulfide; Analytical probes; Atomic arrangement; Diffuse reflection spectroscopy; Electron-transfer; Electronic environments; Hydrogen generations; Photocatalytic water splitting; Structural information; Solid solutions
Type
journal article

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