Student | Xiaochun Gao | Power and Propulsion - RMCRC
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Student | Xiaochun Gao | Power and Propulsion

PhD students

Xiaochun Gao

University of Technology Sydney (Supervisor: Guoxiu Wang)

PhD topic – Developing functional materials for electrochemical storage with high energy densities and stable cycling ability

Xiaochun Gao

Research summary

This research aimed to develop advanced materials for Li-S batteries and hybrid supercapacitors. The functional materials are expected to assist the batteries/supercapacitors with high energy density and stable cycling ability. The implementation of this new electrochemical storage technology could effectively provide voltage stabilisation for rail systems, and improve the performance of propulsion for light rail vehicles.

Completion date

February 2020

Key achievements

  • Functional metallic nitride material with strong trapping ability to polysulfides.
  • High energy density.
  • Stable cycling performance.
  • Pouch cells with excellent electrochemical performance.

Publications

Chen, Y., Choi, S., Su, D., Gao, X. and Wang, G. Self-Standing Sulfur Cathodes Enabled by 3D Hierarchically Porous Titanium Monoxide-Graphene Composite Film for High-Performance Lithium-Sulfur Batteries. Nano Energy 2018, 47, 331–339.

Gao, X., Feng, J., Su, D., Ma, Y., Wang, G., Ma, H. and Zhang, J. In-Situ Exfoliation of Porous Carbon Nitride Nanosheets for Enhanced Hydrogen Evolution. Nano Energy 2019, 59, 598–609.

Gao, X., Zhou, D., Chen, Y., Wu, W., Su, D., Li, B. and Wang, G. Strong Charge Polarization Effect Enabled by Surface Oxidized Titanium Nitride for Lithium-Sulfur Batteries. Commun. Chem. 2019, 2 (1), 66.

Wang, S., Xiong, P., Guo, X., Zhang, J., Gao, X., Zhang, F., Tang, X., Notten, P. H. L. and Wang, G. A Stable Conversion and Alloying Anode for Potassium‐Ion Batteries: A Combined Strategy of Encapsulation and Confinement. Funct. Mater. 2020, 2001588.

Yang, W., Yang, W., Dong, L., Gao, X., Wang, G. and Shao, G. Enabling Immobilization and Conversion of Polysulfides through a Nitrogen-Doped Carbon Nanotubes/Ultrathin MoS2 Nanosheet Core-Shell Architecture for Lithium-Sulfur Batteries. J. Mater. Chem. A 2019, 7 (21), 13103–13112.

Yu, X., Yu, Z.-Y., Zhang, X.-L., Li, P., Sun, B., Gao, X., Yan, K., Liu, H., Duan, Y. and Gao, M.-R. Highly Disordered Cobalt Oxide Nanostructure Induced by Sulfur Incorporation for Efficient Overall Water Splitting. Nano Energy 2020, 104652.

Zhang, F., Guo, X., Xiong, P., Zhang, J., Song, J., Yan, K., Gao, X., Liu, H. and Wang, G. Interface Engineering of MXene Composite Separator for High‐Performance Li–Se and Na–Se Batteries. Energy Mater. 2020, 2000446.