3D nickel molybdenum oxyselenide (Ni1-xMoxOSe) nanoarchitectures as advanced multifunctional catalyst for Zn-air batteries and water splitting

被引：134

作者：

Balamurugan, Jayaraman ^{[1
]}

Thanh Tuan Nguyen ^{[1
]}

Kim, Do Hwan ^{[2
,3
]}

Kim, Nam Hoon ^{[1
]}

Lee, Joong Hee ^{[1
,4
]}

机构：

[1] Jeonbuk Natl Univ, Dept Nano Convergence Engn BK21 Four, Jeonju 54896, Jeonbuk, South Korea

[2] Jeonbuk Natl Univ, Div Sci Educ, Jeonju 54896, Jeonbuk, South Korea

[3] Jeonbuk Natl Univ, Inst Fus Sci, Jeonju 54896, Jeonbuk, South Korea

[4] Jeonbuk Natl Univ, Carbon Composite Res Ctr, Dept Polymer Nano Sci & Technol, Jeonju 54896, Jeonbuk, South Korea

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 286卷

基金：

新加坡国家研究基金会;

关键词：

Multifunctional catalysis; Zn-air batteries; Water splitting; DFT calculations; Nickel-molybdenum oxyselenide nanosheets; SELENIDE NANOSHEETS; HYDROGEN EVOLUTION; METAL SULFIDES; EFFICIENT; ELECTROCATALYSTS; DESIGN;

D O I：

10.1016/j.apcatb.2021.119909

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：

Rational design of 3D nickel molybdenum oxyselenide (Ni1-xMoxOSe) nanoarchitectures with numerous oxygen vacancies is developed through facile and low-cost hydrothermal and followed by selenium ion modulation approach. The experimental and theoretical studies reveal that the optimal Ni0.5Mo0.5OSe possesses ultrafast charge-transfer kinetics, which would boost the catalytic activities, enhance the accessibility of electroactive sites, and increase the diffusion networks for oxygen species. Most impressively, the optimal Ni0.5Mo0.5SSe affords superior trifunctional activities, outperforming benchmark Pt/C and IrO2 catalysts. When employed as an air-cathode in flexible Zn-air batteries, it achieves a peak power density of 166.7 mW cm(-2) and outstanding durability for 300 h in ambient air. Furthermore, the water electrolyzer realizes a current density of 10 mA cm(-2) at a cell voltage of 1.51 V, outperforming benchmark Pt/C parallel to IrO2 couple and reported state-of-the-art catalysts. This consequence provides a general strategy to explore highly efficient multifunctional catalysts with enhanced durability.

引用

页数：12

共 56 条

[31] Nitrogen-doped graphene encapsulated FeCoMoS nanoparticles as advanced trifunctional catalyst for water splitting devices and zinc-air batteries [J].