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General Chemistry

Special Issue: Electrocatalysis

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Advanced Layered Double Hydroxide-Based Electrocatalysts for Electrocatalytic Oxygen Evolution Reaction

Tariq Ali,a Niaz Muhammad,b Tingzhou Yang,a and Chenglin Yan*,a   

  1. a College of Energy, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, Jiangsu 215006, China
    b Department of Chemistry, Abdul Wali Khan University, Mardan, Pakistan
  • Received:2020-01-07 Online:2020-12-20
  • Contact: Chenglin Yan, Email: c.yan@suda.edu.cn (C. Y.)
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No. 21603157), the College Natural Science Foundation of Jiangsu Province (Nos. 16KJB430025, BK20181168), and the Postdoctoral Science Foundation of China (Nos. 2016T90488, 2015M580459).

Abstract: Layered double hydroxides (LDHs) are the most promising candidates among all candidates for electrocatalytic water splitting, especially oxygen evolution reaction. Electrocatalytic activities of LDHs can be attuned by exfoliation, composition, morphology regulation and by intercalating some species. Moreover, exfoliation and flexible ion exchange can be tuned by the unique intercalation properties via flexible tunability of multiple metal cations. However, certain limitations like bulk thickness, large lateral size and low conductivity of LDHs decrease their uses in oxygen evolution reaction. In order to increase its electrocatalytic performances, researchers introduce different strategies such as combining the conductive materials to LDHs to introduce defects and tune the electronic structure of LDHs to enhance the active sites and increase intrinsic activity. In this minireview, we summarized current progress, strategies, challenges and prospective in the fabrication and designing of LDHs materials by various species.

 

Key words: layered double hydroxide, oxygen evolution reaction, electrocatalysts, tuning electronic structure, active sites

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