One-dimensional multilevel stalactite-like Ni3S2-Fe(Mo2S4) bifunctional electrocatalyst with excellent oxygen evolution reaction and overall water splitting performance

被引：6

作者：

Zhao, Ning ^{[1
]}

Mu, Lan ^{[1
]}

Liao, Wenbo ^{[1
]}

Zhao, Gang ^{[1
]}

Xue, Mei ^{[1
]}

Ding, Meng ^{[1
]}

Dai, Yuxin ^{[1
]}

Xu, Xijin ^{[1
]}

机构：

[1] Univ Jinan, Sch Phys & Technol, Jinan 250022, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2025年 / 682卷

基金：

中国博士后科学基金;

关键词：

Bifunctional electrocatalyst; One-dimensional multilevel structure; Oxygen evolution reaction; Transition metal sulfides; Overall water splitting;

D O I：

10.1016/j.jcis.2024.11.193

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sluggish multi-electron transfer process of the oxygen evolution reaction (OER) hinders the further advancement of electrolysis for hydrogen production. Here, a one-dimensional multilevel stalactite-like Ni3S2-Fe(Mo2S4) with excellent oxygen evolution performance was successfully synthesized using a universal two-step hydrothermal method. The nanorod arrays increase the active area and promote electron transfer. In addition, the synergistic effect between the two transition metal sulfides further enhances the internal kinetics of the catalyst to improve the overall water splitting performance. This heterostructure can achieve a current density of 10 mA cm(-2) with the low overpotential of only 166 mV (OER) and 177 mV (HER). As a bifunctional catalyst, it also can achieve the overall water splitting process at a low voltage of 1.573 V and demonstrates good stability over a continuous period of 48 h.

引用

页码：148 / 156

页数：9