Bimetallic MOF‐Derived FeCo‐P/C Nanocomposites as Efficient Catalysts for Oxygen Evolution Reaction

Abstract

Oxygen evolution reaction (OER) demands cost‐effective electrocatalysts with high catalytic performance. In this effort, metal–organic framework (MOF)‐derived nanocomposites are presenting promising prospects to achieve this goal. Herein, FeCo bimetallic MOFs with different compositions are prepared through a sodium hydroxide assisted approach. By means of a successive carbonization and phosphating reaction, a series of MOF‐derived multicomponent products are synthesized. The resultant P‐doped products present enhance electrocatalytic performance for OER in alkaline electrolyte in comparison with a commercial RuO2 catalyst, which paves the way for their practical applications for water splitting. The developed method herein also offers an opportunity for the large‐scale preparation of MOF‐derived product toward energy conversion applications.

Recent Advances in Metal‐Organic Frameworks and Their Derived Materials for Electrocatalytic Water Splitting

“…Hong et al. reported a series of P‐doped Fe−Co bimetallic porous carbon composites (Fe x Co y −P/C) that showed better OER electrocatalytic performance than commercial RuO 2 in alkaline electrolyte, which would be due to synergistic effect between multiple components. Fe x Co y −P/C can be obtained by high‐temperature carbonation and low‐temperature phosphating of Fe−Co bimetallic organic framework in argon, and the X‐ray diffraction patterns indicated Fe 3 C, Fe 2 P, CoP, Co 2 P and Co existed in the material.…”

Construction of Defect‐Rich RhCu Nanotubes with Highly Active Rh3Cu1 Alloy Phase for Overall Water Splitting in All pH Values

“…Recently, hydrogen (H 2 ), as one of renewable new energy sources, has been paid much attention to solve energy and environmental problems and it is considered as a potential substitute for traditional fossil fuels due to its high energy density, ecofriendly, and clean traits. [1][2][3][4][5] Generally, electrochemical water splitting is an ideal and green approach to generate H 2 , which consists of two half reactions: one is the cathodic hydrogen evolution reaction (HER), the other is the anodic oxygen evolution reaction (OER). [1,3,[5][6][7] Unfortunately, both of the two half reactions are inefficient because the sluggish kinetics that come from electron/proton-removal processes and the high activation barrier in decomposition reactions.…”

“…[1,3,[5][6][7] Unfortunately, both of the two half reactions are inefficient because the sluggish kinetics that come from electron/proton-removal processes and the high activation barrier in decomposition reactions. [1,4,5,8,9] In addition, electrocatalysts with bifunctional and highly active performance Therefore, it is an ideal way to synthesize 1D RhCu nanomaterial because Cu is cheap and has good conductivity. Additionally, the integration of Rh with Cu may also change local electronic structure of Rh and enhance the Cu corrosion and oxidation resistance.…”

Co2P Nanoparticles Wrapped in Amorphous Porous Carbon as an Efficient and Stable Catalyst for Water Oxidation

“…In recent years, plenty of transition-metal-based OER electrocatalysts have been reported because of their relatively high intrinsic activities and low cost, mainly including transition-metal oxides (Xu et al, 2016a ), oxyhydroxides (Smith et al, 2013 ; Friebel et al, 2015 ), selenides (Xu et al, 2017 ), and phosphides (Xu et al, 2016b ; Song et al, 2017 ; Ye et al, 2017 ; Hong et al, 2018 ; Zhang et al, 2018 ). Among these extensively researched electrocatalysts, transitional metal phosphides have attracted considerable attention (Gao et al, 2018 ).…”