期刊
POLYHEDRON
卷 193, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2020.114871
关键词
Hydrogen evolution reaction; Oxygen evolution reaction; Electrocatalyst; Metal based and metal free electrocatalyst; Hybrid electrocatalyst
Electrocatalytic water splitting is seen as a promising sustainable source of renewable energy for the future. Challenges remain in developing cost-effective electrocatalysts with high surface area, stability, and bifunctional activity in order to overcome current barriers.
Electrocatalytic water splitting is considered being an optimistic process and can be a sustainable source of renewable energy for the future. Although, the primary overpotential requirement and stability problem of the electrocatalysts make the process difficult for industrial applications, a cost-effective electrocatalyst with high surface area, stability, and bifunctional activity can eliminate such barriers in the upcoming eons. To date, metal alloys, metal hydroxides, metal oxides, metal derivatives (phosphides, sulfides, selenides, and carbides) metal-organic frameworks, hybrid and metal-free materials based electrocatalysts have been already developed for the overall water splitting. Herein, the challenges to enhance the activity, stability and durability in the metal (both noble metal and transitional metal) and metal-free based electrocatalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are summarized. A general overview of the water splitting mechanism followed by various electrocatalyst are discussed mainly. Moreover, it is expected to provide a comprehensive summary and outlook at the end. (C) 2020 Elsevier Ltd. All rights reserved.
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