基于混合配体的镍(Ⅱ)MOF基电催化剂的合成、结构表征及性能研究

人工晶体学报 ›› 2024, Vol. 53 ›› Issue (12): 2167-2172.

基于混合配体的镍(Ⅱ)MOF基电催化剂的合成、结构表征及性能研究

潘会宾^1,2, 乔得聪², 王嘉欣², 高霞³, 卢久富²

1.商洛职业技术学院公共课教学部,商洛 726000;
2.陕西理工大学催化基础与应用重点实验室,化学与环境科学学院,汉中 723001;
3.商洛学院化学工程与现代材料学院,商洛 726000

收稿日期:2024-07-22 出版日期:2024-12-15 发布日期:2024-12-20
通信作者: 卢久富,博士,教授。E-mail:jiufulu@163.com
作者简介:潘会宾(1983—),男,陕西省人,讲师。E-mail:371648621@qq.com
基金资助:
国家自然科学基金青年科学基金(22003037)

Synthesis, Structure Characterization and Properties of Nickel (Ⅱ) MOF-Based Electrocatalyst Based on Mixed Ligands

PAN Huibin¹, QIAO Decong², WANG Jiaxin², GAO Xia³, LU Jiufu²

1. Department of Public Education, Shangluo Vocational & Technical College, Shangluo 726000, China;
2. Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong 723001, China;
3. School of Chemical Engineering & Modern Materials, Shangluo University, Shangluo 726000, China

Received:2024-07-22 Online:2024-12-15 Published:2024-12-20

摘要/Abstract

摘要： 在溶剂热条件下,以Ni(NO₃)₂·6H₂O为金属源、五甲基间苯二甲酸(H₂MIP)配体和1,3-双(2-甲基-1H-咪唑-1-基)丙烷(BMIP)为混合配体,构筑了一例新型Ni(Ⅱ)有机骨架材料{[Ni₄(MIP)₄(BMIP)₃]·DMF}_n(SNUT-36)。X射线单晶衍射结果表明:SNUT-36呈现一个4,6链接双节点的二重穿插的三维骨架结构,拓扑分析数据为(3²·4⁵·5·6⁷)(3⁴·4⁷·5·6³)。进一步通过粉末X射线衍射、红外光谱、热重分析等手段对得到的配合物进行表征。此外,化学测试结果显示,SNUT-36达到20 mA·cm^-2时的过电位为430 mV,表明其具有良好的电催化性能,Tafel斜率为89 mV·dec^-1,也证实了其对提高析氧反应速率具有良好的效果。

关键词: Ni(Ⅱ)有机骨架材料, 溶剂热, 电催化, 混合配体, 析氧反应

Abstract: Under solvothermal conditions, using Ni(NO₃)₂·6H₂O as the metal source, pentamethy lisophthalic acid (H₂MIP) ligand and 1,3-bis(2-methyl-1H-imidazol-1-yl)propane (BMIP) as mixed ligands, a new Ni(Ⅱ) organic framework material, {[Ni₄(MIP)₄(BMIP)₃]·DMF}_n (SNUT-36), was constructed. X-ray single crystal diffraction analysis shows that SNUT-36 presents a binodal (4,6) connected double-interpenetrated three-dimensional skeleton structure with topological analysis data of (3²·4⁵·5·6⁷)(3⁴·4⁷·5·6³). The obtained complex was further characterized by powder X-ray diffraction, infrared spectroscopy, thermogravimetric analysis and other means. In addition, the electrochemical test results show that SNUT-36 achieve an overpotential of 430 mV at 20 mA·cm^-2, indicating its good electrocatalytic performance. The Tafel slope of 89 mV·dec^-1 also confirmed its good effect on improving the oxygen evolution reaction rate.

Key words: Ni(Ⅱ) organic framework, solvothermal, electro-catalysis, mixed ligand, oxygen evolution reaction

中图分类号:

潘会宾, 乔得聪, 王嘉欣, 高霞, 卢久富. 基于混合配体的镍(Ⅱ)MOF基电催化剂的合成、结构表征及性能研究[J]. 人工晶体学报, 2024, 53(12): 2167-2172.

PAN Huibin, QIAO Decong, WANG Jiaxin, GAO Xia, LU Jiufu. Synthesis, Structure Characterization and Properties of Nickel (Ⅱ) MOF-Based Electrocatalyst Based on Mixed Ligands[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2024, 53(12): 2167-2172.

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