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Update on Recent Designing Strategies of Transition Metal-Based Layered Double Hydroxides Bifunctional Electrocatalysts

3. Zhengyang Cai, Ping Wang, Junhe Yang and Xianying Wang, Update on Recent Designing Strategies of Transition Metal-Based Layered Double Hydroxides Bifunctional Electrocatalysts, ES Energy Environ., 2019, 5, 22-36.

PDF online:esee8c320.pdf

Abstract: Fabrication of efficient, stable and cost-effective bifunctional electrocatalysts to achieve overall water splitting reaction (OWS) has become a task of high priority, in view of the urgent need for the promotion of renewable energy-based hydrogen production systems. Transition metal-based layered double hydroxides (LDHs) as one of promising bifunctional electrocatalysts have been intensely studied, due to the advantages of unique 2D layered structure and outstanding physicochemical properties. Herein, this review aims to summarize the recently advanced strategies on design of LDHs, including nanostructuring, conductive support-based hybrid, defect engineering, anion intercalation, cation doping and related derivatives. Particularly, a thorough literature overview on OWS performance improvement of LDHs is appraised detailedly. The discussions on challenges and future directions are provided, which will shed light on development of better LDHs bifunctional electrocatalysts and exploration of efficient device units for practical applications.

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