塔菲尔方程
异质结
电催化剂
材料科学
析氧
碳纳米管
催化作用
化学工程
自催化
纳米颗粒
纳米技术
电化学
化学
光电子学
物理化学
电极
生物化学
工程类
作者
Qinghua Yang,Yingyan Fu,Wenhao Liao,Yaqi Zhang,Min Qian,Haojiang Dai,Xianfeng Tong,Tianyun Chen
标识
DOI:10.1016/j.ijhydene.2021.09.207
摘要
Heterojunction construction is a vital strategy for the preparation of oxygen evolution reaction (OER) electrocatalysts by adjusting electronic properties. Herein, the heterojunction electrocatalyst consisting of FeNi3/Ni2P nanoparticles encapsulated in N-doped carbon nanotubes (FeNi3/Ni2[email protected]) was obtained by a simple synthetic method. FeNi3/Ni2[email protected] heterojunction effectively promoted the interface charge transfer between different components. Moreover, the prepared catalyst FeNi3/Ni2[email protected] exhibited extraordinary catalytic activity for OER in alkaline medium. The η10, Tafel slope, Cdl for OER were 298 mV, 81.82 mV dec−1 and 14.35 mF cm−2, respectively. Besides, no visible variation after stability test for 100 h continuously. Remarkable catalytic activity is given the credit to the autocatalytic growth of carbon nanotubes, the synergistic effect of Ni2P and FeNi3 on the interface of heterojunction and the optimized electronic structure.
科研通智能强力驱动
Strongly Powered by AbleSci AI