Energy storage and conversion have attained significant interest owing to its important applications that reduce COi emission through employing green energy. Sorne promising technologies are included metal air batteries, metal sulfur batteries, met al ion batteries, electrochemical ca pacitors, etc. Here, metal elements are involved with lithium, sodium, and magnesium For these devices, electrode materials are of importance to obtain high performance. Two dimensional (2D) materials are a large kind of layered structured materials with promising future as energy storage materials, which include graphene, black phosporus, MXenes , covalent organic frameworks ( COFs ), 2D oxides, 2D chalcogenides, and ot hers. Great progress has been achieved to go ahead for 2D materials in energy storage and conversion. More researchers will j oin in this res earch field. Under the background, it has motivated us to c ontribute with a roadmap on 'two dimensional materials for energy storage and conversion.
Sodium‐ion batteries (SIBs) have received much attention, owing to their great potential for large‐scale application. A lack of efficient anode materials with high reversible capacity is one main challenge facing the development of SIBs. Antimony‐ and bismuth‐based chalcogenides materials can store large amounts of Na+ ions, owing to the alloying/dealloying reaction mechanism within a low potential range, and thus, are regarded as promising anodes for SIBs. However, these materials face great challenges of poor ion diffusion rate, multiple phase transformations, and severe morphology pulverization. Herein, recent developments in antimony‐ and bismuth‐based chalcogenides materials, mainly rational structural design strategies used and the electrochemical reaction mechanisms involved, are summarized. Perspectives for further improving antimony‐ and bismuth‐based chalcogenides anodes are also provided.
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