Imperial College London
Alternate

ProfessorCeciliaMattevi

Faculty of Engineering, Department of Materials

Professor of Materials Science
 
 
 
//

Contact

 

+44 (0)20 7594 0833c.mattevi

 
 
//

Location

 

2.11Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Sokolikova:2020:10.1039/d0cs00143k,
author = {Sokolikova, MS and Mattevi, C},
doi = {10.1039/d0cs00143k},
journal = {Chemical Society Reviews},
pages = {3952--3980},
title = {Direct synthesis of metastable phases of 2D transition metal dichalcogenides},
url = {http://dx.doi.org/10.1039/d0cs00143k},
volume = {49},
year = {2020}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The different polymorphic phases of transition metal dichalcogenides (TMDs) have attracted enormous interest in the last decade. The metastable metallic and small band gap phases of group VI TMDs displayed leading performance for electrocatalytic hydrogen evolution, high volumetric capacitance and some of them exhibit large gap quantum spin Hall (QSH) insulating behaviour. Metastable 1T(1T′) phases require higher formation energy, as compared to the thermodynamically stable 2H phase, thus in standard chemical vapour deposition and vapour transport processes the materials normally grow in the 2H phases. Only destabilization of their 2H phase via external means, such as charge transfer or high electric field, allows the conversion of the crystal structure into the 1T(1T′) phase. Bottom-up synthesis of materials in the 1T(1T′) phases in measurable quantities would broaden their prospective applications and practical utilization. There is an emerging evidence that some of these 1T(1T′) phases can be directly synthesized via bottom-up vapour- and liquid-phase methods. This review will provide an overview of the synthesis strategies which have been designed to achieve the crystal phase control in TMDs, and the chemical mechanisms that can drive the synthesis of metastable phases. We will provide a critical comparison between growth pathways in vapour- and liquid-phase synthesis techniques. Morphological and chemical characteristics of synthesized materials will be described along with their ability to act as electrocatalysts for the hydrogen evolution reaction from water. Phase stability and reversibility will be discussed and new potential applications will be introduced. This review aims at providing insights into the fundamental understanding of the favourable synthetic conditions for the stabilization of metastable TMD crystals and at stimulating future advancements in the field of large-scale synthesis of materials with crystal phase control.
AU  - Sokolikova,MS
AU  - Mattevi,C
DO  - 10.1039/d0cs00143k
EP  - 3980
PY  - 2020///
SN  - 0306-0012
SP  - 3952
TI  - Direct synthesis of metastable phases of 2D transition metal dichalcogenides
T2  - Chemical Society Reviews
UR  - http://dx.doi.org/10.1039/d0cs00143k
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000545009500006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.rsc.org/en/content/articlelanding/2020/CS/D0CS00143K#!divAbstract
UR  - http://hdl.handle.net/10044/1/84601
VL  - 49
ER  -
Download