Ni2Zn0.5Fe-LDH modified carbon paste electrode as an efficient electrocatalyst for water oxidation in neutral media

被引：58

作者：

Foruzin, Leila Jafari ^{[1
]}

Rezvani, Zolfaghar ^{[1
]}

Shishavan, Yalda Haghighi ^{[2
]}

Habibi, Biuck ^{[2
]}

机构：

[1] Azarbaijan Shahid Madani Univ, Dept Chem, Inorgan Chem Lab, Fac Sci, Tabriz 53714161, Iran

[2] Azarbaijan Shahid Madani Univ, Dept Chem, Electroanalyt Chem Lab, Fac Sci, Tabriz 53714161, Iran

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 01期

关键词：

Water oxidation; Oxygen evolution reaction; Electrocatalyst; Carbon past electrode; Layered double hydroxide; Ternary-component; Neutral media; LAYERED DOUBLE-HYDROXIDE; OXYGEN-EVOLVING CATALYST; HIGHLY-EFFICIENT; SURFACE DERIVATION; COBALT PHOSPHATE; NANOSHEET ARRAY; PHOTOSYSTEM-II; BAND-GAP; EVOLUTION; NI;

D O I：

10.1016/j.ijhydene.2017.11.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, the ternary-component nickel-zinc-iron layered double hydroxides (NixZny Fe-z-LDHs) were synthesized by co-precipitation process and characterized using scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy and atomic absorption spectroscopy. The NixZnyFez-LDHs were then used as the efficient electrocatalyst materials to fabricate the modified carbon paste electrodes (CPEs) for water oxidation in neutral media. The effect of Zn2+ ions on the electrocatalytic activity of the ternary-component NixZnyFez-LDHs modified CPE was studied under suggested optimum condition. In this condition, the ternary-component Ni2Zn0.5Fe-LDH modified CPE displayed improved electrocatalytic activity in comparison with other ternary-component LDHs, and also binary-component LDHs, Ni2Fe-LDH and ZnFe-LDH modified CPEs due to high crystallinity and low band gap energy which enhanced the conductivity of the synthesized LDH. Furthermore, the ternary-component Ni2Zn0.5Fe-LDH modified CPE had good structural stability with no significant deactivation of the electrocatalytic properties in neutral media after 13 h oxygen evolution reaction at room temperature. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：150 / 160

页数：11

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