化学
电催化剂
水热合成
热液循环
析氧
化学工程
纳米技术
电化学
电极
物理化学
材料科学
工程类
作者
Lingzhi Wu,Xiaoyan Zhou,Peng-Cheng Zeng,Jing-Yu Huang,Ming‐Dao Zhang,Ling Qin
出处
期刊:Polyhedron
[Elsevier]
日期:2022-10-01
卷期号:225: 116035-116035
被引量:17
标识
DOI:10.1016/j.poly.2022.116035
摘要
Two similar structures of Ni-MOF and Co-MOF were synthesized and calcined under nitrogen atmosphere to obtain HER catalysts. The electrocatalytic performance was significantly improved by introducing Zn 2+ compared with the original Co-MOF-800. Electrocatalytic hydrogen evolution reactions (HER) can produce clean hydrogen energy. Precious metal electrocatalysts had excellent electrocatalytic activity. However, its limited resources and high price limited its large-scale application. Therefore, the design of efficient, stable and low-cost non-precious metal electrocatalysts has become the key to improving HER efficiency. Herein, we synthesized two cobalt and nickel-based Metal-Organic Frameworks (MOFs), [Ni(bib) 2 (SO 4 )] n (Ni-MOF) and [Co(bib) 2 (SO 4 )] n (Co-MOF) using bib as a ligand (bib = 1,4-bis(1-imidazolyl)benzene). Ni-MOF-T or Co-MOF-T was obtained by high-temperature calcination under the nitrogen atmosphere. Ni-MOF-800 or Co-MOF-800 exhibited high electrocatalytic hydrogen evolution activity. Besides, the electrocatalytic performance of Co-MOF@Zn-800 obtained by doping zinc ions in Co-MOF was improved.
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