Novel one-step synthesis of nickel encapsulated carbon nanotubes as efficient electrocatalyst for hydrogen evolution reaction

被引：47
|
作者：
Oluigbo, Chidinma Judith [1 ]
Xie, Meng [2 ]
Ullah, Nabi [1 ]
Yang, Saisai [1 ]
Zhao, Wentong [1 ]
Zhang, Mingmei [1 ]
Lu, Xiaomeng [1 ]
Xu, Yuanguo [1 ]
Xie, Jimin [1 ]
机构：
[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Pharm, Zhenjiang 212013, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 05期
基金：
中国博士后科学基金;
关键词：
Encapsulated nickel; Carbon nanotubes; Electrocatalytic activity; Hydrogen evolution reaction; COMPOSITE-COATED ELECTRODE; SODIUM-BOROHYDRIDE; ENERGY-CONVERSION; FACILE SYNTHESIS; STORAGE; NANOPARTICLES; HYDROLYSIS; PHOSPHIDE; SURFACE; NANOMATERIALS;
D O I：
10.1016/j.ijhydene.2018.11.215
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 work, we report the synthesis of Ni nanoparticles encapsulated in carbon nanotubes (CNTs) by a facile and novel one-step pyrolysis method which are obtained from fumaric acid and nickel acetate as carbon and nickel sources respectively. The synthesized Ni encapsulated CNTs were characterized by various methods and were confirmed to possess large surface areas and numerous mesopores, they were applied as non-precious metal electrocatalyst for HER in 1 M KOH solution. The results show that the Ni encapsulated carbon nanotubes synthesized at 650 degrees C exhibited the best catalytic activity and stability with the smallest Tafel slope of 102 mV dec(-1), an onset potential of 110 mV and over-potential of 266 mV to achieve a current density of -10 mA cm(-2). (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：2685 / 2693
页数：9
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