TY - JOUR
T1 - An aluminum/cobalt/iron/nickel alloy as a precatalyst for water oxidation
AU - Najafpour, Mohammad Mahdi
AU - Mehrabani, Somayeh
AU - Bagheri, Robabeh
AU - Song, Zhenlun
AU - Shen, Jian Ren
AU - Allakhverdiev, Suleyman
N1 - Funding Information:
The authors are grateful to the Institute for Advanced Studies in Basic Sciences and the National Elite Foundation for the financial support. The reported study was funded by grant RFBR-INSF according to the joint research project, and supported by Russian Foundation for Basic Research (No. 17–54 -56 0012 ), and by Iran National Science Foundation (No. 96003636 ).
Publisher Copyright:
© 2017 Hydrogen Energy Publications LLC
PY - 2018/1/25
Y1 - 2018/1/25
N2 - Among different strategies, water splitting toward hydrogen production is a promising process to store energy from intermittent sources. However, the anodic water oxidation is a bottleneck for water splitting. In this paper, we report an aluminum/cobalt/iron/nickel alloy as a precatalyst for the electrochemical water oxidation. The alloy electrode contains different metal ions including cobalt, iron, and nickel which all are efficient for water oxidation is tested. We characterized this electrode using scanning electron microscopy, transmission electron microscopy, diffuse reflectance infrared Fourier transform spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and electrochemical methods. After stabilization, the electrode shows an onset overpotential of 200.0 mV and affords a current density of 3.5 mA cm−2 at an overpotential of 600.0 mV in KOH solution at pH 13.
AB - Among different strategies, water splitting toward hydrogen production is a promising process to store energy from intermittent sources. However, the anodic water oxidation is a bottleneck for water splitting. In this paper, we report an aluminum/cobalt/iron/nickel alloy as a precatalyst for the electrochemical water oxidation. The alloy electrode contains different metal ions including cobalt, iron, and nickel which all are efficient for water oxidation is tested. We characterized this electrode using scanning electron microscopy, transmission electron microscopy, diffuse reflectance infrared Fourier transform spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and electrochemical methods. After stabilization, the electrode shows an onset overpotential of 200.0 mV and affords a current density of 3.5 mA cm−2 at an overpotential of 600.0 mV in KOH solution at pH 13.
KW - Alloy
KW - Artificial photosynthesis
KW - Hydrogen production
KW - Water
KW - Water oxidation
KW - Water-oxidizing catalyst
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U2 - 10.1016/j.ijhydene.2017.12.025
DO - 10.1016/j.ijhydene.2017.12.025
M3 - Article
AN - SCOPUS:85042349419
SN - 0360-3199
VL - 43
SP - 2083
EP - 2090
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 4
ER -
