Facile synthesis of macroporus SnS microspheres as a potential anode material for enhanced sodium ion batteries

被引：9

作者：

Choi, Seung Ho ^{[1
]}

Jang, Yujin ^{[2
]}

Choi, Yun Ju ^{[2
]}

Ko, You Na ^{[3
]}

机构：

[1] Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA

[2] KBSI, Busan Ctr, 30 Gwahaksandan 1 Ro 60beon Gil, Busan 46742, South Korea

[3] Korea Inst Energy Res, Greenhouse Gas Res Lab, 152 Gajeong Ro, Daejeon 34129, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 80卷

基金：

新加坡国家研究基金会;

关键词：

Energy storage; Na-ion battery; Electrode; Tin sulfide; Macropore; HIGH-PERFORMANCE ANODE; GRAPHENE OXIDE COMPOSITE; ELECTROCHEMICAL PROPERTIES; HIGH-CAPACITY; CARBON; NANOPARTICLES; NANOCOMPOSITES; ELECTRODES; NANOSHEETS; SNO2;

D O I：

10.1016/j.jiec.2019.07.040

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Macroporous SnS microspheres with open pores were prepared using a spray pyrolysis process followed by a simple sulfidation process. The macroporous SnO2 microspheres prepared from the precursor solution including tin ions and polystyrene beads transformed into the macroporous and phase-pure SnS microspheres by sulfidation at an optimized temperature of 350 degrees C. The sulfidation process of the SnO2 microspheres without open pores obtained by spray pyrolysis formed SnS-SnO2 and SnS-Sn composite microspheres with filled structures at sulfidation times of 9 and 24h, respectively. The discharge capacities of the macroporous SnS microspheres with open pores and dense SnS-SnO2 and SnS-Sn microspheres for the 50th cycle at a current density of 0.5 A g(-1) were 364, 231, and 264 mA hg(-1), respectively. The macroporous SnS microspheres with open pores showed higher capacities and superior rate capability for sodium ion storage compared to dense SnS-SnO2 and SnS-Sn microspheres. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：130 / 135

页数：6

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