过渡金属电解水催化剂的非金属掺杂研究进展

Transition metal‑based materials with relatively low cost and excellent catalytic performance are consid‑ ered as the most promising candidates to replace noble metal‑based electrocatalysts in the field of overall water split‑ ting. However, their wide applications are hindered by the limited active sites and relatively poor electrical conduc‑ tivity. The doping of non‑metallic elements can modulate the electronic structure of the host material and optimize the adsorption energy, thus positively affecting the activity and stability of transition metal‑based electrocatalysts and narrowing the performance gap between them and precious metal materials. In this paper, we summarize the recent research on the modification of non‑metallic elements in transition metal‑based electrocatalytic materials, systematically review the methods of non‑metallic element doping (high‑temperature calcination, hydrothermal/sol‑ vent thermal, plasma treatment and electrodeposition), the doping effects of different non‑metallic elements (single non‑metallic element doping, multi‑nonmetallic element doping and composite doping), and analyze the effects of non‑metallic element modification on transition metal‑based electrocatalysts from multiple perspectives of physico‑ chemical property changes and electronic structure changes. The effects of non‑metallic element modification on transition metal‑based materials are analyzed from the perspectives of physicochemical property change and elec‑ tronic structure change. In the end, the future development direction of non‑metallic element doped transition metal‑ based electrocatalysts is prospected.