Synthesis, structure, adsorption and electrochemical properties of the new two-dimensional cobalt coordination polymer based on bifunctional ligand

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-28 DOI:10.1007/s11243-024-00586-7

Wei Yao, Ru Yang, Baotong Xu, He Yu, Le Kang, Andrei S. Potapov, Vladimir P. Fedin, Enjun Gao

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引用次数: 0

Abstract

A novel two-dimensional coordination polymer {[Co(Htia)₂(C₂H₅OH)₂]·H₂O}_n (1) (H₂tia = 5-(1H-1,2,4-triazol-1-yl)isophthalic acid, C₁₀N₃O₄H₇) was successfully synthesized by a solvothermal method using H₂tia containing –COOH and –N bifunctional groups as ligands and transition metal Co as the central ion. 1 was analyzed by XRD, IR, UV and TG. Single-crystal X-ray diffraction analysis shows that Co²⁺ ions in 1 are the hexagonal distorted octahedral geometry. Neighboring Co²⁺ ions form a two-dimensional grid using the Htia ligand as the rigid skeleton. The adjacent 2D layers interact through hydrogen bonds to build a three-dimensional supramolecular crystalline material. Based on the laminar structure of 1, we investigated the adsorption capacity of 1 on two cationic dyes, crystalline violet and Janus green B. The results show that 1 has a certain adsorption capacity and the maximum adsorption amount of the dyes can reach as high as 56 and 176 mg g⁻¹, respectively. The electrochemical experiment shows that 1 has good electrocatalytic activity in the electrolyte solution of 0.01 M KOH not only for the oxidation of H₂O₂, but also for the oxidation of ascorbic acid.

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基于双功能配体的新型二维钴配位聚合物的合成、结构、吸附和电化学特性

以含有 -COOH 和 -N 双官能团的 H2tia 为配体，以过渡金属 Co 为中心离子，通过溶热法成功合成了一种新型二维配位聚合物 {[Co(Htia)2(C2H5OH)2]-H2O}n (1)（H2tia = 5-(1H-1,2,4-三唑-1-基)间苯二甲酸，C10N3O4H7）。对 1 进行了 XRD、IR、UV 和 TG 分析。单晶 X 射线衍射分析表明，1 中的 Co2+ 离子呈六角畸变八面体几何形状。相邻的 Co2+ 离子以 Htia 配体为刚性骨架，形成二维网格。相邻的二维层通过氢键相互作用，形成三维超分子结晶材料。基于 1 的层状结构，我们研究了 1 对结晶紫和 Janus 绿 B 两种阳离子染料的吸附能力。结果表明，1 具有一定的吸附能力，对染料的最大吸附量分别高达 56 和 176 mg g-1。电化学实验表明，在 0.01 M KOH 的电解质溶液中，1 不仅对 H2O2 的氧化，而且对抗坏血酸的氧化都具有良好的电催化活性。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.