Cd-ZnGeON solid solution

The effect of local electronic environment on the photocatalytic water cleavage ability

Neelu Chouhan, Ru Shi Liu, Shu-Fen Hu

Research output: Contribution to journalArticle

3 Citations (Scopus)

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).

Original languageEnglish
Pages (from-to)7422-7432
Number of pages11
JournalJournal of Materials Chemistry A
Volume1
Issue number25
DOIs
Publication statusPublished - 2013 Jul 7

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Hydrogen
Solid solutions
Water
X ray absorption spectroscopy
High resolution transmission electron microscopy
Electronic structure
X ray photoelectron spectroscopy
Spectroscopy
X ray diffraction
Electrons

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Cd-ZnGeON solid solution : The effect of local electronic environment on the photocatalytic water cleavage ability. / Chouhan, Neelu; Liu, Ru Shi; Hu, Shu-Fen.

In: Journal of Materials Chemistry A, Vol. 1, No. 25, 07.07.2013, p. 7422-7432.

Research output: Contribution to journalArticle

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