Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 37, Issue 18, Pages 13249-13255Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2012.07.001
Keywords
Electrodeposition; Oxygen-evolving catalyst; Oxygen evolution rate; Water splitting; Energy consumption
Categories
Funding
- National Natural Science Foundation of China [51002103, 21136007]
- Natural Science Foundation for Young Scientists of Shanxi Province, China [2009021010]
- Program for the Top Science and Technology Innovation Teams of Higher Learning Institutions of Shanxi
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A WO3/Ag-B-i based oxygen-evolution catalyst, combining an Ag-B-i catalyst with WO3, has been prepared. This catalyst shows excellent catalytic activity for the splitting of water under mild conditions (near neutral, room temperature, and atmospheric pressure). The WO3/Ag-B-i catalyst shows a high oxygen-evolution rate (30.85 mu mol/h), a high Faradaic efficiency (91.30%), and a low oxygen-evolution overpotential (290 mV). Oxygen evolution and stability performance have been investigated by electrochemical measurements. The WO3/Ag-B-i catalyst has been further characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), and X-ray photoelectron spectroscopy (XPS). Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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