Premium
Graphene‐Like Multilayered CuS Nanosheets Assembled into Flower‐Like Microspheres and Their Electrocatalytic Oxygen Evolution Properties
Author(s) -
Liang Huijun,
Shuang Wei,
Zhang Yatian,
Chao Shunjun,
Han Huijuan,
Wang Xiaobing,
Zhang Hua,
Yang Lin
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201701074
Subject(s) - ostwald ripening , graphene , materials science , nanomaterials , nanotechnology , chemical engineering , electrolyte , oxygen evolution , electrode , electrochemistry , chemistry , engineering
Abstract Graphene‐like two‐dimensional (2D) nanomaterials have many unique properties in diverse fields, but the synthesis method of graphene‐like CuS 2D nanomaterials is rarely studied. In this work, we reported that the CuS flower‐like superstructure microspheres with a solid core (CuS‐FSMs) were prepared by a facile hydrolysis method without a template or surfactant. The novel CuS‐FSM material showed a well‐define solid core of approximately 300–500 nm and a loose shell of 0.5–1 μm. More importantly, the loose shell of the CuS‐FSMs was constructed of graphene‐like CuS nanosheets (CuS‐GN). The formation mechanism indicated that the CuS‐FSMs were firstly formed on the surface of hexagonal prism‐shaped Cu 3 (TAA) 3 Cl 3 precursors, and then the well‐defined solid core was produced through the Ostwald ripening of CuS‐GN. The electrocatalytic oxygen evolution reaction was employed as a probe reaction to gain insight into the properties of CuS‐FSMs, which exhibited a high limiting current density of 92.4 mA cm −2 and stability in 1 M KOH electrolyte.