MoS2/NiSe2/rGO Multiple-Interfaced Sandwich-like Nanostructures as Efficient Electrocatalysts for Overall Water Splitting

被引：16

作者：

Bai, Xiaoyan ^{[1
]}

Cao, Tianqi ^{[1
]}

Xia, Tianyu ^{[1
]}

Wu, Chenxiao ^{[1
]}

Feng, Menglin ^{[1
]}

Li, Xinru ^{[1
]}

Mei, Ziqing ^{[1
]}

Gao, Han ^{[1
]}

Huo, Dongyu ^{[1
]}

Ren, Xiaoyan ^{[1
]}

Li, Shunfang ^{[1
]}

Guo, Haizhong ^{[1
]}

Wang, Rongming ^{[2
]}

机构：

[1] Zhengzhou Univ, Sch Phys & Microelect, Key Lab Mat Phys, Minist Educ, Zhengzhou 450052, Peoples R China

[2] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Sch Math & Phys, Beijing Key Lab Magneto Photoelect Composite & Int, Beijing 100083, Peoples R China

来源：

NANOMATERIALS | 2023年 / 13卷 / 04期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

nanoparticle-doped bilayer-like nanostructures; multiple interfaces; overall water splitting; dual function; non-precious metal catalysis; SUPERIOR BIFUNCTIONAL CATALYSTS; HYDROGEN EVOLUTION REACTION; HIGHLY EFFICIENT; NISE2; HETEROSTRUCTURES; NANODENDRITES; NANOWRINKLES; GRAPHENE; HYBRID;

D O I：

10.3390/nano13040752

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Constructing a heterogeneous interface using different components is one of the effective measures to achieve the bifunctionality of nanocatalysts, while synergistic interactions between multiple interfaces can further optimize the performance of single-interface nanocatalysts. The non-precious metal nanocatalysts MoS2/NiSe2/reduced graphene oxide (rGO) bilayer sandwich-like nanostructure with multiple well-defined interfaces is prepared by a simple hydrothermal method. MoS2 and rGO are layered nanostructures with clear boundaries, and the NiSe2 nanoparticles with uniform size are sandwiched between both layered nanostructures. This multiple-interfaced sandwich-like nanostructure is prominent in catalytic water splitting with low overpotential for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) and almost no degradation in performance after a 20 h long-term reaction. In order to simulate the actual overall water splitting process, the prepared nanostructures are assembled into MoS2/NiSe2/rGO||MoS2/NiSe2/rGO modified two-electrode system, whose overpotential is only 1.52 mV, even exceeded that of noble metal nanocatalyst (Pt/C||RuO2 similar to 1.63 mV). This work provides a feasible idea for constructing multi-interface bifunctional electrocatalysts using nanoparticle-doped bilayer-like nanostructures.

引用

页数：13

共 57 条

[1] Epitaxial Heterogeneous Interfaces on N-NiMoO4/NiS2 Nanowires/Nanosheets to Boost Hydrogen and Oxygen Production for Overall Water Splitting [J].