Salt-assisted Phase Transformation of Transition Metal Dichalcogenides
Overview
We have developed a simple and general salt-assisted one-step gas-solid method for the large-scale preparation of a series of unconventional 1T′-phase transition metal dichalcogenides, in which the easily accessible 2H-phase TMDs and alkali metal salt were used as ingredients.
Research completion
2022
Commercialisation opportunities
Technology licensing agreement
Problem addressed
Realize the large-scale preparation of high-quality and high-purity 1T′-phase transition metal dichalcogenides.
Innovation
- Compared to previously reported methods for the synthesis of 1T′-phase transition metal dichalcogenides, our method simplifies the complexed and multiple-step process into a one-step gas-solid reaction, greatly reducing the synthetic difficulty and increases the reproducibility.
- Compared to previously reported methods for the synthesis of 1T′-phase transition metal dichalcogenides, our method is cost-effective for large-scale production because of the use of cheap and easily accessible ingredients.
Key impact
- This cost-effective synthetic method only requires a simple one-step reaction for large-scale production without complicated procedures, boosting the production efficiency.
- Provide new high-performance materials with high-quality and high purity for electrocatalysis, energy storage and condensed matter physics.
Application
- Catalyst for electrocatalytic hydrogen evolution reaction
- Electrode materials for lithium ion battery
City University of Hong Kong (CityU)
As one of the fastest growing universities in the world over the past decade, City University of Hong Kong (CityU) is recognised as a hub for innovation in research and professional education. CityU identifies solutions to critical global challenges by extending the frontiers of knowledge both within and beyond existing research paradigms.
The University’s highly qualified academics are drawn from all over the world, not only bringing a wealth of research and professional experience to the teaching programmes, but also contributing to the knowledge and technology advancement.
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