Dynamic single-site polysulfide immobilization in long-range disorder Cu-MOFs

Ju Sun; Xinxin Lu; Kuang-Hsu Wu; Jingwei Hou; Ruopian Fang; Judy N. Hart; Shenmin Zhu; Vicki Chen; Rose Amal; Da-Wei Wang

doi:10.1039/D0CC04001K

Dynamic single-site polysulfide immobilization in long-range disorder Cu-MOFs†

Ju Sun,^a Xinxin Lu,^a Kuang-Hsu Wu,

^a Jingwei Hou,

^b Ruopian Fang,^a Judy N. Hart,

^c Shenmin Zhu,^d Vicki Chen,^b Rose Amal

^a and Da-Wei Wang

*^ae

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* Corresponding authors

^a Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
E-mail: da-wei.wang@unsw.edu.au

^b School of Chemical Engineering, University of Queensland, St. Lucia, Queensland, Australia

^c School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia

^d State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

^e UNSW Digital Grid Futures Institute, The University of New South Wales, Sydney, NSW 2052, Australia

Abstract

The structural transformation of MOFs in a polysulfide electrode process is poorly understood. We report the electrochemical amorphization of Cu₃(BTC)₂ MOFs in polysulfide electrolyte. We unveil the dynamic single-site polysulfide immobilization at the interconvertible Cu²⁺/Cu⁺ cation centres upon polysulfide adsorption and desorption, along with the reversible distortion of the Cu–O square planar unit.

Chemical Communications

Dynamic single-site polysulfide immobilization in long-range disorder Cu-MOFs†

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Dynamic single-site polysulfide immobilization in long-range disorder Cu-MOFs

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