Anion-dependent topochemical conversion of CoAl-LDH microplates to hierarchical superstructures of CoOOH nanoplates with controllable orientation

Qingsong Song; Jialiang Wang; Qian Sun; Xiaoshan Wang; Zhaohua Zhu; Chengjie Pei; Hai Li; Zhimin Luo; Xiao Huang; Wei Huang

doi:10.1039/D0CC03773G

Anion-dependent topochemical conversion of CoAl-LDH microplates to hierarchical superstructures of CoOOH nanoplates with controllable orientation†

Qingsong Song,‡^a Jialiang Wang,‡^a Qian Sun,‡^a Xiaoshan Wang,^b Zhaohua Zhu,^a Chengjie Pei,^a Hai Li,

^a Zhimin Luo,*^c Xiao Huang

*^a and Wei Huang*^abc

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* Corresponding authors

^a Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211800, China
E-mail: iamxhuang@njtech.edu.cn

^b Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China
E-mail: iamwhuang@nwpu.edu.cn

^c Key Laboratory for Organic Electronic & Information Displays (KLOEID) and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, China
E-mail: iamzmluo@njupt.edu.cn

Abstract

Hierarchical superstructures of laterally or vertically oriented CoOOH nanoplates were prepared by topochemical conversion of CoAl-LDH microplates intercalated with CO₃²⁻ or SO₄²⁻ anions, respectively. The superstructure of vertically oriented nanoplates exhibited better electrocatalytic performance as compared to the lateral counterpart, attributable to the enlarged accessible surface area and promoted reaction kinetics.

Chemical Communications

Anion-dependent topochemical conversion of CoAl-LDH microplates to hierarchical superstructures of CoOOH nanoplates with controllable orientation†

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Anion-dependent topochemical conversion of CoAl-LDH microplates to hierarchical superstructures of CoOOH nanoplates with controllable orientation

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