Chemical Industry and Engineering Progress ›› 2019, Vol. 38 ›› Issue (10): 4645-4650.DOI: 10.16085/j.issn.1000-6613.2019-0094

• Materials science and technology • Previous Articles     Next Articles

Preparation of NiFe-based nanofibers by electrospinning and their oxygen evolution reaction performances

Mojie SUN1(),Dongyao LIN1,Zhao WANG1,Shijie WANG1,Jiusheng WANG2,Dong WANG1()   

  1. 1. School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, Jilin, China
    2. Jilin Electric Power Research Institute, State Grid Corporation of China, Changchun 130000, Jilin, China
  • Received:2019-01-14 Online:2019-10-05 Published:2019-10-05
  • Contact: Dong WANG

静电纺丝制备镍铁纳米纤维及其析氧性能

孙墨杰1(),林东尧1,王钊1,王世杰1,王久生2,王冬1()   

  1. 1. 东北电力大学化学工程学院,吉林 吉林 132012
    2. 国家电网有限公司吉林省电力科学研究院,吉林 长春 130000
  • 通讯作者: 王冬
  • 作者简介:孙墨杰(1967—),博士,教授,硕士生导师,研究方向为电厂化学仪表、功能材料。E-mail:smoj@sina.com
  • 基金资助:
    吉林省科技发展计划(20170204015SF)

Abstract:

Efficient oxygen evolution reaction (OER) catalysts are essential for efficient energy storage and conversion. In this paper, nickel-iron alloy with nickel ferrite composite nanofibers (NiFe/NiFe2O4) were successfully prepared by electrospinning combined with one-step calcination. The conditions of the calcination atmosphere, temperature and element ratio were modulated. X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical methods were used to characterize and analyze these samples. Significantly, the electrochemical test results showed that the material had a high electrocatalytic activity for oxygen evolution reaction in alkaline medium (1mol/L KOH). The optimum sample required a overpotential of 380mV at 10mA/cm2, which exhibited excellent stability after chronopotentiometry for 10h.

Key words: electrospinning, catalyst, electrochemistry, composites, oxygen evolution reaction, NiFe alloy, NiFe2O4

摘要:

高效的析氧反应(OER)催化剂对于高效的能量储存和转换是必不可少的。本文采用静电纺丝法结合一步煅烧成功制备了镍铁合金/铁酸镍复合纳米纤维(NiFe/NiFe2O4),通过调变煅烧气氛、温度、元素比例等条件并结合X射线衍射(XRD)、扫描电镜(SEM)和电化学等测试手段对材料进行了相关表征与分析。其中电化学测试结果显示,该材料对碱性介质(1mol/L KOH)中析氧反应具有较高的电催化活性,最佳样品在电流密度达到10mA/cm2时所需过电位为380mV,并且在计时电位法测试10h后也表现出极佳的稳定性。

关键词: 静电纺丝, 催化剂, 电化学, 复合材料, 析氧反应, 铁镍合金, 铁酸镍

CLC Number: 

京ICP备12046843号-2;京公网安备 11010102001994号
Copyright © Chemical Industry and Engineering Progress, All Rights Reserved.
E-mail: hgjz@cip.com.cn
Powered by Beijing Magtech Co. Ltd