1T-MoS2 nanosheets confined among TiO2 nanotube arrays for high performance supercapacitor

被引：129

作者：

Zhou, Jian ^{[1
]}

Guo, Miao ^{[2
]}

Wang, Longlu ^{[2
]}

Ding, Yangbin ^{[2
]}

Zhang, Zezhong ^{[1
]}

Tang, Yanhong ^{[1
]}

Liu, Chengbin ^{[2
]}

Luo, Shenglian ^{[2
]}

机构：

[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2019年 / 366卷

基金：

中国国家自然科学基金;

关键词：

1T-MoS2; TiO2 nanotube arrays; Confined effect; Supercapacitors; MOS2/REDUCED GRAPHENE OXIDE; MOS2; NANOSHEETS; ENERGY-STORAGE; METALLIC MOS2; FILMS; 1T; FABRICATION; COMPOSITES; MONOLAYERS; BATTERIES;

D O I：

10.1016/j.cej.2019.02.079

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Metallic 1T phase molybdenum disulfide (1T-MoS2) holds great promise in energy storage applications due to its excellent conductivity and hydrophilicity. However, free 1T-MoS2 nanosheets are prone to agglomeration and convert to 2H-MoS2, resulting in a decrease in electrochemical performance. In this study, metallic 1T phase MoS2 nanosheets are confined among TiO2 nanotube arrays (1T-MoS2@ TiO2/Ti) via a facile hydrothermal process. The architecture in the glory of ultrathin 1T-MoS2 nanosheets and highly ordered pore tunnel of TiO2 nanotube arrays benefits fast electrolyte diffusion and electron transfer. As a result, the 1T-MoS2@TiO2/Ti composite shows a high specific capacitance of 428.1F g(-1) at 0.2 A g(-1), high energy density of 48.2 Wh kg(-1), high power density of 2481.7Wkg(-1) and 97% capacitance retention after 10,000 cycles. This study proves an artful thought for designing electrode materials to enhance their electrochemical performances.

引用

页码：163 / 171

页数：9

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