A high-performance bifunctional catalyst with a 2D [TeMo6O24]-based framework for efficient CEES oxidation and electrochemical sensing of Cu2+

IF 1.7 4区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Transition Metal Chemistry Pub Date : 2025-05-30 DOI:10.1007/s11243-025-00657-3

Cihang Kang, Lian Yang, Yuan Zheng, Zhong Zhang, Shuaixue Yan, Guocheng Liu, Xiuli Wang

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引用次数: 0

Abstract

Under hydrothermal conditions, a two-dimensional (2D) Anderson-type polyoxometalate-based framework {[Cu(dap)₂][Cu(dap)(H₂O)₂]₂[TeMo₆O₂₄]} (1, dap = 1,2-diaminopropane) was synthesized and characterized by single crystal X-ray diffraction analysis, elemental analysis, IR spectroscopy, electrochemical impedance spectroscopy and powder X-ray diffraction. Complex 1 features an unusual mixed-linkage 2D metal–organic network constructed from both single [Cu(dap)₂]²⁺ and double [Cu(dap)(H₂O)₂]²⁺ linkers. As a heterogeneous catalyst, 1 exhibited outstanding catalytic performance for the oxidation of 2-chloroethyl ethyl sulfide, achieving 99.1% conversion and 100% selectivity toward CEESO within 10 min at 35 °C, accompanied by excellent structural and catalytic stability. Moreover, 1 demonstrated promising electrochemical sensing properties of Cu²⁺ ions, showing a low limit of detection of 0.492 μM, a high sensitivity of 0.426 μA μM⁻¹ and good anti-interference ability.

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基于2D [TeMo6O24]框架的高效CEES氧化和电化学感应Cu2+的高性能双功能催化剂

在水热条件下合成了二维（2D） anderson型多金属氧酸盐骨架{[Cu(dap)2][Cu(dap)(H2O)2]2[TeMo6O24]} （1,dap = 1,2-二氨基丙烷），并通过单晶x射线衍射分析、元素分析、红外光谱、电化学阻抗谱和粉末x射线衍射对其进行了表征。配合物1具有不同寻常的由单[Cu(dap)2]2+和双[Cu(dap)(H2O)2]2+连接的混合链接二维金属有机网络。作为一种非均相催化剂，1对2-氯乙基乙硫醚的氧化表现出优异的催化性能，在35℃条件下，10 min内对CEESO的转化率达到99.1%，选择性达到100%，具有优异的结构稳定性和催化稳定性。此外，1对Cu2+离子具有良好的电化学传感性能，检测限低0.492 μM，灵敏度高0.426 μA μM−1，抗干扰能力强。

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来源期刊

Transition Metal Chemistry 化学-无机化学与核化学

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

1.3 months

期刊介绍： Transition Metal Chemistry is an international journal designed to deal with all aspects of the subject embodied in the title: the preparation of transition metal-based molecular compounds of all kinds (including complexes of the Group 12 elements), their structural, physical, kinetic, catalytic and biological properties, their use in chemical synthesis as well as their application in the widest context, their role in naturally occurring systems etc. Manuscripts submitted to the journal should be of broad appeal to the readership and for this reason, papers which are confined to more specialised studies such as the measurement of solution phase equilibria or thermal decomposition studies, or papers which include extensive material on f-block elements, or papers dealing with non-molecular materials, will not normally be considered for publication. Work describing new ligands or coordination geometries must provide sufficient evidence for the confident assignment of structural formulae; this will usually take the form of one or more X-ray crystal structures.