3D hollow nanoflowers assembled by ultrathin molybdenum-nickel phosphide nanosheets as robust electrocatalysts for oxygen evolution reaction

被引：25

作者：

Chen, Sheyun ^{[1
]}

Dai, Jingtao ^{[1
]}

Ren, Fangfang ^{[1
]}

Xu, Hui ^{[2
]}

Du, Yukou ^{[2
]}

机构：

[1] Yancheng Teachers Univ, Coll Chem & Environm Engn, 2 Hope Ave South Rd, Yancheng 224007, Peoples R China

[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2019年 / 536卷

基金：

中国国家自然科学基金;

关键词：

Hollow nanoflowers; Ultrathin nanosheets; Oxygen evolution reaction; Electrocatalysts; HIGHLY-EFFICIENT ELECTROCATALYSTS; DOUBLE HYDROXIDE NANOSHEETS; HYDROGEN EVOLUTION; CO3O4; NANOSHEETS; FACILE SYNTHESIS; ETHYLENE-GLYCOL; CATALYST; VACANCIES; FE; NANOSPHERES;

D O I：

10.1016/j.jcis.2018.10.036

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：

Designing cost-efficient and durable electrocatalysts toward oxygen evolution reaction (OER) has been of vital significance for the commercial development of various renewable energy systems. Herein, we report the construction of a new class of 3D hollow nanoflower catalysts that assembled by ultrathin nickel-molybdenum phosphide nanosheets. Owing to the increased electronic and ion transport channels, the heteroatom doping, and synergistic effects from the interconnected compositions, the newly-generated 3D MoNiP hollow nanoflowers display superior OER activity than that of Ir/C. And the optimized Mo1Ni1P hollow nanoflowers (Mo1Ni1P HNFs) can afford a current density of 10 mA cm(-2) at the overpotential of 275 mV in 1.0 M KOH solution. More importantly, the resultant Mo1Ni1P HNFs also display excellent stability with negligible activity and morphology decay. This work provides insights for the utilization of earth-abundant and highly efficient electrocatalysts via rationally designing the morphology of electrocatalysts. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：71 / 79

页数：9

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