Effect of intercalated molybdenum atoms on structure and electrochemical properties of Mo1+x S2 synthesized by hydrothermal method

As an alternative anode to graphene, molybdenum disulfide (MoS2) has attracted much attention due to its layered structure and high specific capacity. Moreover, MoS2 can be synthesized by hydrothermal method with low cost and the size of its layer spacing can be controlled. In this work, the results of experiment and calculation proved that the presence of intercalated Mo atoms, leading to the expansion of MoS2 layer spacing and weakening of Mo–S bonding. For the electrochemical properties, the presence of intercalated Mo atoms causes the lower reduction potentials for the Li+ intercalation and Li2S formation. In addition, the effective reduction of diffusion resistance and charge transfer resistance in Mo1+x S2 leads to the acquisition of high specific capacity for battery applications.

[1]  Y. Xiong,et al.  Design of ultra-thick graphene-molybdenum disulfide electrodes to reduce volume expansion and capacity fading by first principles , 2022, Journal of Alloys and Compounds.

[2]  Kaifeng Yu,et al.  Unveiling the relationship between the multilayer structure of metallic MoS2 and the cycling performance for lithium ion batteries. , 2022, Nanoscale.

[3]  Baofeng Wang,et al.  Hydrochloric Acid-Assisted Synthesis of Highly Dispersed MoS2 Nanoflowers as the Cathode Material for Mg-Li Batteries , 2022, ACS Applied Energy Materials.

[4]  D. Qiu,et al.  Thickness-dependent phase transition kinetics in lithium-intercalated MoS2 , 2022, 2D Materials.

[5]  Y. Lai,et al.  Interfacial reinforcement structure design towards ultrastable lithium storage in MoS2-based composited electrode , 2021, Chemical Engineering Journal.

[6]  Yangyi Yang,et al.  A nano interlayer spacing and rich defect 1T-MoS2 as cathode for superior performance aqueous zinc-ion batteries , 2021, Nanoscale advances.

[7]  Hyun‐Seok Kim,et al.  Mixed‐phase MoS2 decorated reduced graphene oxide hybrid composites for efficient symmetric supercapacitors , 2021, International Journal of Energy Research.

[8]  A. Ashour,et al.  Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review , 2020, Environmental Chemistry Letters.

[9]  Chao Zhou,et al.  Synthesis of yolk–shell MoS2 microspheres with enhanced supercapacitance , 2018, Materials Letters.

[10]  S. R. Setayesh,et al.  Investigating the role of MoS2/reduced graphene oxide as cocatalyst on Cu2O activity in catalytic and photocatalytic reactions , 2017 .

[11]  Quan-hong Yang,et al.  Opening Two‐Dimensional Materials for Energy Conversion and Storage: A Concept , 2017 .

[12]  Wei Li,et al.  Preparation and adsorption capacity of porous MoS2 nanosheets , 2016 .

[13]  Li Jiahe,et al.  Facile hydrothermal synthesis of MoS2 nano-sheets with controllable structures and enhanced catalytic performance for anthracene hydrogenation , 2016 .

[14]  Zhiyu Wang,et al.  Self-templated formation of tremella-like MoS2 with expanded spacing of (002) crystal planes for Li-ion batteries , 2016, Journal of Materials Science.

[15]  K. Fujii,et al.  Hydrothermal Synthesis, Crystal Structure, and Superconductivity of a Double-Perovskite Bi Oxide , 2016 .

[16]  N. Kumada.  Hydrothermal Synthesis of a New Bi-based (Ba0.82K0.18) (Bi0.53Pb0.47)O3 Superconductor. , 2015 .

[17]  M. Azuma,et al.  Superconducting double perovskite bismuth oxide prepared by a low-temperature hydrothermal reaction. , 2014, Angewandte Chemie.

[18]  Seungho Yu,et al.  Edge-exposed MoS2 nano-assembled structures as efficient electrocatalysts for hydrogen evolution reaction. , 2014, Nanoscale.

[19]  J. Goodenough,et al.  Challenges for Rechargeable Li Batteries , 2010 .

[20]  Jing Zhong,et al.  Enhancing the specific capacity and rate performance of MoS2 nanomaterials via introducing subgrains at a hydrothermal temperature 160 °C , 2020 .

[21]  Brian C. Olsen,et al.  Lithium ion battery applications of molybdenum disulfide (MoS2) nanocomposites , 2014 .