电催化剂
析氧
分解水
电池(电)
催化作用
碳纤维
化学工程
化学
纳米颗粒
可逆氢电极
材料科学
无机化学
电极
纳米技术
电化学
工作电极
物理化学
有机化学
复合材料
物理
工程类
量子力学
光催化
功率(物理)
复合数
作者
Weihang Feng,Yongqiang Feng,Junsheng Chen,Hai Wang,Yuzhu Hu,Tianmi Luo,Chengke Yuan,Liyun Cao,Liangliang Feng,Jianfeng Huang
标识
DOI:10.1016/j.cej.2022.135456
摘要
Rational design of multi-functional electrocatalyst for hydrogen evolution reaction (HER), oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is critical to energy conversion and storage technologies such as water splitting and metal-air batteries. However, explorations of specific interface structures for catalysts are still limited and challenging. Herein, a novel core–shell architecture comprising of Ru and FeRu hybrid enwrapped with a carbon shell anchored on nitrogen-doped carbon substrate ([email protected]/NC) was constructed. Specifically, the interfacial electronic interaction between Ru and FeRu regulate the electron configuration and broaden the electron transfer pathway to boost its electrocatalytic performance. Particularly, [email protected]/NC required ultralow overpotentials of 23 and 345 mV to drive a current density of 10 mA cm−2 for HER and OER, respectively, and a positive half-wave potential of 0.90 V versus reversible hydrogen electrode (RHE) for ORR. Furthermore, an electrocatalytic water splitting cell powered by a Zn–air battery was successfully fabricated using [email protected]/NC as the “one-in-all” electrocatalyst. The present work paves the way for design and construction of efficient multifunctional electrocatalyst in energy conversion and storage.
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