Environmentally friendly and efficient transition metal phosphide (TMP) electrocatalysts for oxygen evolution reaction (OER) are developed to meet the growing demand for clean energy. Here we report a novel and environmentally friendly strategy for the preparation of MOF-derived bimetallic phosphide embedded in the carbonaceous matrix (FeNiP/C). With 3-dimensional hollow barrel shape and high specific surface, FeNiP/C-900 performs excellent OER catalytic performance, reaching a current density of 10 mA cm⁻² at an overpotential of 229 mV with a low Tafel slope of 74.5 mV dec⁻¹. Meantime, we explore the thermal conversion mechanism of P-containing MOF and the compositional changes during heat treatment.

开发了用于氧气析出反应（OER）的环保高效的过渡金属磷化物（TMP）电催化剂，以满足对清洁能源不断增长的需求。在这里，我们报告了一种新颖且环保的策略，用于制备嵌入在碳质基质（FeNiP / C）中的MOF衍生的双金属磷化物。FeNiP / C-900具有三维空心桶形和高比表面，具有出色的OER催化性能，在229 mV的过电势下具有10 mA cm ^-2的电流密度，而Tafel斜率低至74.5 mV dec ^-1。同时，我们探讨了含P的MOF的热转化机理以及热处理过程中的成分变化。