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Self‐Supported Transition‐Metal‐Based Electrocatalysts for Hydrogen and Oxygen Evolution
Author(s) -
Sun Hongming,
Yan Zhenhua,
Liu Fangming,
Xu Wence,
Cheng Fangyi,
Chen Jun
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201806326
Subject(s) - oxygen evolution , materials science , water splitting , electrolysis of water , electrocatalyst , transition metal , nanotechnology , electrochemistry , electrolysis , nitride , hydrogen production , catalysis , chemical engineering , electrode , chemistry , photocatalysis , biochemistry , layer (electronics) , engineering , electrolyte
Electrochemical water splitting is a promising technology for sustainable conversion, storage, and transport of hydrogen energy. Searching for earth‐abundant hydrogen/oxygen evolution reaction (HER/OER) electrocatalysts with high activity and durability to replace noble‐metal‐based catalysts plays paramount importance in the scalable application of water electrolysis. A freestanding electrode architecture is highly attractive as compared to the conventional coated powdery form because of enhanced kinetics and stability. Herein, recent progress in developing transition‐metal‐based HER/OER electrocatalytic materials is reviewed with selected examples of chalcogenides, phosphides, carbides, nitrides, alloys, phosphates, oxides, hydroxides, and oxyhydroxides. Focusing on self‐supported electrodes, the latest advances in their structural design, controllable synthesis, mechanistic understanding, and strategies for performance enhancement are presented. Remaining challenges and future perspectives for the further development of self‐supported electrocatalysts are also discussed.