Carbon-supported phosphatized CuNi nanoparticle catalysts for hydrazine electrooxidation

被引：37

作者：

Wang, Wei ^{[1
]}

Wang, Yahui ^{[1
]}

Liu, Shijia ^{[1
]}

Yahia, Mohamed ^{[2
]}

Dong, Yinjuan ^{[1
]}

Lei, Ziqiang ^{[3
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Peoples R China

[2] Stockholm Univ, Dept Mat & Environm Chem MMK, S-10691 Stockholm, Sweden

[3] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Ecoenvironm Related Polymer Mat, Minist Educ China,Key Lab Gansu Polymer Mat, Lanzhou 730070, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 21期

关键词：

Phosphatized alloy nanoparticles; Electrocatalyst; Synergistic effect; Hydrazine oxidation reaction; ENHANCED ELECTROCATALYTIC ACTIVITY; FACILE SYNTHESIS; FUNCTIONALIZED CARBON; ETHANOL OXIDATION; NICKEL-OXIDE; ALLOY; PERFORMANCE; PHOSPHORUS; PALLADIUM; ELECTRODE;

D O I：

10.1016/j.ijhydene.2019.03.005

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：

Developing non-noble metal catalysts with high performance to reduce the cost of hydrazine fuel cells is urgent. Herein, in this study, a series of carbon-supported phosphatized CuNi catalysts (P--CuxNiy/C) are designed for hydrazine oxidation reaction (HzOR) via high temperature phosphating process. Among them, the P-Cu2Ni/C is found to be a promising candidate for hydrazine electrooxidation. Electrochemical measurement results indicate that the P-Cu2Ni/C catalyst exhibits higher catalytic activity and stability for HzOR in comparison with P-CuNi/C, P-CuNi2/C, Cu2Ni/C, Cu/C and Ni/C catalysts. Additionally, HzOR kinetics are also investigated, and it proves that hydrazine electrooxidation on P-Cu2Ni/C is a diffusion controlled irreversible process. Meanwhile, physical characterization reveals that the catalysts have doped phosphorus successfully. All results demonstrate that as-prepared P-Cu2Ni/C catalyst is a promising electrocatalyst for direct hydrazine fuel cells. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：10637 / 10645

页数：9

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