Energy electrocatalysis is an essential part for the modern energy network serving as the core technique in many electrochemical energy devices such as batteries, fuel cells, electrolyzers, etc. Developing high-performance electrocatalysts, especially the pursuit for higher intrinsic electrocatalytic activity, is the eternal theme for high-efficiency energy electrocatalysis. Transition metal compounds are highly considered as promising high-performance electrocatalysts due to their facile fabrication, well-defined structure, and encouraging intrinsic activity. However, further promotion on intrinsic electrocatalytic activity of conventional transition metal compounds encounters an unavoidable bottleneck originated from the rigid homoanion structure with limited choice of anions. Facing the above issue, heteroanion substitution on pristine transition metal compounds has been proposed in some recent research. Their unique structure and properties that distinguish them from routine transition metal compounds have attracted wide attention to reveal distinct electronic structures, synthesis methodologies, and functions in energy electrocatalysis for future application.

中文翻译：

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多阴离子过渡金属化合物：合成、调控和电催化应用

能源电催化是现代能源网络的重要组成部分，是电池、燃料电池、电解槽等众多电化学能源装置的核心技术。开发高性能电催化剂，特别是追求更高的本征电催化活性是永恒的追求。高效能源电催化的主题。过渡金属化合物由于其易于制造、明确的结构和令人鼓舞的内在活性而被高度认为是有前途的高性能电催化剂。然而，传统过渡金属化合物内在电催化活性的进一步提升遇到了不可避免的瓶颈，该瓶颈源于刚性均阴离子结构，阴离子选择有限。面对以上问题，最近的一些研究提出了原始过渡金属化合物上的杂阴离子取代。它们独特的结构和性质将它们与常规过渡金属化合物区分开来，已引起广泛关注，以揭示不同的电子结构、合成方法和能量电催化功能，以备将来应用。