草酸配体修饰的锆取代型硅钨-氧簇合物的合成、结构和电化学性质研究

人工晶体学报 ›› 2021, Vol. 50 ›› Issue (5): 884-888.

草酸配体修饰的锆取代型硅钨-氧簇合物的合成、结构和电化学性质研究

张众, 杨琳, 李晓慧, 王梓兰, 王静怡

渤海大学化学与材料工程学院,辽宁省全谱太阳能电池转光材料专业技术创新中心,锦州 121013

收稿日期:2021-01-25 出版日期:2021-05-15 发布日期:2021-06-15
作者简介:张众(1985—),男,山东省人,博士,讲师。E-mail: zhangzhong666@126.com
基金资助:
国家自然科学基金青年科学基金(21901018);中国博士后科学基金(2019M650498);渤海大学博士启动基金(0520bs027)

Synthesis, Crystal Structure, and Electrochemical Properties of a Ox-Functionalized Zirconium(Ⅳ) Substituted Tungsten-Oxo Cluster

ZHANG Zhong, YANG Lin, LI Xiaohui, WANG Zilan, WANG Jingyi

Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China

Received:2021-01-25 Online:2021-05-15 Published:2021-06-15

摘要/Abstract

摘要： 通过水热反应,成功合成了一个草酸配体修饰的四核锆取代的夹心型硅钨-氧簇合物H₁₂Na₂[Zr₄(μ₃-O)₂(μ₂-OH)₂(Ox)₂(α-SiW₁₀O₃₇)₂]·22H₂O (Ox=oxalic acid)。该夹心型硅钨-氧簇是由两个{α-SiW₁₀O₃₇}簇块通过一个{Zr₄(μ₃-O)₂(μ₂-OH)₂(Ox)₂}簇连接构成的。通过X-射线单晶衍射、IR、TG以及元素分析对该簇合物进行表征。晶体结构分析表明: 该簇合物结晶于单斜晶系,P2₁/c空间群,a=2.132 2 (6) nm, b=1.271 6 (4) nm, c=2.223 1 (7) nm, β=110.933(4)°,V=5.629 9(3) nm³,Z=2,R₁=0.061 5,wR₂=0.164 4。电化学和电催化性质研究表明标题簇合物对NO^-₂的还原有很好的电催化效果。

关键词: 水热合成, 草酸, 钨-氧簇合物, 晶体结构, 电化学, 电催化性质

Abstract: Under hydrothermal conditions,a new Ox-functionalized zirconium(Ⅳ) substituted tungsten-oxo cluster, H₁₂Na₂[Zr₄(μ₃-O)₂(μ₂-OH)₂(Ox)₂(α-SiW₁₀O₃₇)₂]·22H₂O (Ox=oxalic acid) was successfully obtained and characterized by single crystal X-ray diffraction analysis, IR, TG and elemental analysis. The title compound consists of a sandwich-type tungsten-oxo cluster unit built by two divacant {α-SiW₁₀O₃₇} fragments linked through a {Zr₄(μ₃-O)₂(μ₂-OH)₂(Ox)₂} cluster and crystallizes in the monoclinic system, space group P2₁/c with a=2.132 2 (6) nm, b=1.271 6 (4) nm, c=2.223 1(7) nm, β=110.933(4)°, V=5.629 9(3) nm³, Z=2, R₁=0.061 5, wR₂=0.164 4. The electrochemistry and electrocatalytic properties of the title compound were studied, and it exhibits excellent catalytic activities for NO^-₂ reduction.

Key words: hydrothermal synthesis, oxalic acid, tungsten-oxo cluster, crystal structure, electrochemistry, electrocatalytic property

中图分类号:

O611

张众, 杨琳, 李晓慧, 王梓兰, 王静怡. 草酸配体修饰的锆取代型硅钨-氧簇合物的合成、结构和电化学性质研究[J]. 人工晶体学报, 2021, 50(5): 884-888.

ZHANG Zhong, YANG Lin, LI Xiaohui, WANG Zilan, WANG Jingyi. Synthesis, Crystal Structure, and Electrochemical Properties of a Ox-Functionalized Zirconium(Ⅳ) Substituted Tungsten-Oxo Cluster[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2021, 50(5): 884-888.

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