文献类型：期刊文献

英文题名：Controlled synthesis of porous NiFeP/C nanocages for high-efficiency lithium storage and oxygen evolution reaction catalysis

作者：Yuan, Yuanliang[1];He, Jie[1];Zhang, Lu[2];Li, Xue[3];Wang, Yanyang[1];Liu, Jiaming[1];Wang, Ruixiang[1];Xu, Zhifeng[1]

机构：[1]Jiangxi Univ Sci & Technol, Sch Met Engn, Ganzhou 341000, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[3]Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China

年份：2025

卷号：1038

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20253218947805);WOS:【SCI-EXPANDED(收录号:WOS:001558897100001)】；

基金：This work was financially supported by the Major Science and Technology Research Projects in Yichun City (2023ZDKJGG01) ; Key Research and Development Program of Yunnan Province (202403AA080018) ; Yunnan Engineering Research Center Innovation Ability Construction and Enhancement Projects (No. 2023-XMDJ-00617107) ; Scientific and Technological Project of Yunnan Precious Metals Laboratory (YPML-20240502015) ; Natural Science Foundation of Yunnan Province (202401AS070646) .

语种：英文

外文关键词：Transition metal phosphides; Porous hollow nanocage; NiFeP; Lithium-Ion battery anode; Oxygen evolution reaction

摘要：Transition metal phosphides (TMPs) are promising candidates for lithium-ion battery (LIB) anodes and oxygen evolution reaction (OER) catalysts due to their high theoretical capacity, excellent catalytic activity, and economic viability. However, their practical applications are hindered by irreversible structural reconstruction during electrochemical cycling, causing capacity fading and active site loss. Herein, we report a controlled synthesis of porous hollow NiFeP/C nanocages (denoted as NiFeP/C AE) via a synergistic ammonia etching (AE) and pyrolytic phosphidation strategy. This novel approach precisely tailors the nanocage architecture and introduces abundant defects in the NiFeP heterojunction, effectively enhancing structural stability, electron transport, and ion diffusion. As an LIB anode, NiFeP/C AE delivers a high specific capacity of 426.4 mAh g-1 after 300 cycles at 200 mA center dot g-1, demonstrating superior cycling durability and rate performance. As an OER catalyst, it exhibits a remarkably low overpotential of 188 mV at 10 mA center dot cm-2 and a Tafel slope of 93.79 mV center dot dec-1, outperforming commercial RuO2. The enhanced bifunctional electrocatalytic performance arises from the synergistic effect between the N,P co-doped carbon matrix and the defect-rich NiFeP heterostructure interface, which increases active site density and lowers the adsorption energy barrier for reaction intermediates. This work provides a rational structural engineering strategy for developing high-performance, stable bifunctional TMP-based materials for energy storage and conversion applications.