Controllable synthesis of hierarchical MoS2 nanotubes with ultra-uniform and superior storage potassium properties

Yunlei Zhong; Dan Liu; Li-Tong Wang; Hai-Guang Zhu; Guo Hong

doi:10.1016/j.jcis.2019.11.034

Controllable synthesis of hierarchical MoS₂ nanotubes with ultra-uniform and superior storage potassium properties

J Colloid Interface Sci. 2020 Mar 1:561:593-600. doi: 10.1016/j.jcis.2019.11.034. Epub 2019 Nov 11.

Authors

Yunlei Zhong¹, Dan Liu¹, Li-Tong Wang¹, Hai-Guang Zhu², Guo Hong³

Affiliations

¹ Institute of Applied Physics and Materials Engineering, University of Macau. Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau. Avenida da Universidade, Taipa 999078, Macau.
² College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, PR China. Electronic address: zhuhg@qust.edu.cn.
³ Institute of Applied Physics and Materials Engineering, University of Macau. Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau. Avenida da Universidade, Taipa 999078, Macau. Electronic address: ghong@um.edu.mo.

PMID: 31740133
DOI: 10.1016/j.jcis.2019.11.034

Abstract

Molybdenum disulfide (MoS₂) is a promising nanomaterial which has been extensively investigated in photo-/electro-catalysis, sensors, and batteries due to its excellent physical/chemical properties. In this manuscript, MoS₂ hierarchical nanotubes with hollow nanostructure are successfully synthesized via a facile hydrothermal method. SEM indicates that such MoS₂ nanotubes have perfect uniformity while TEM demonstrates the hollow structure. Specifically, the ratio of MoS₂ to the randomly produced polysulfide in the synthesized MoS₂ nanotubes is 4.29 which confirms that the synthesized MoS₂ nanotubes have quite high quality. Compared with the previous studies, our MoS₂ nanotubes show superior rate capability and cyclability (127 mAh g^-1 at 200 mA g^-1 after 100 cycles) in the potassium ion battery.

Keywords: Hierarchical and hollow nanostructure; High quality; MoS(2) nanotubes; Potassium ion battery.