Transition Metal Carbo-Chalcogenide "TMCC": A New Family of 2D Materials Show others and affiliations
2022 (English) In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 34, no 26, article id 2200574Article in journal (Refereed) Published
Abstract [en]
A new family of 2D transition metal carbo-chalcogenides (TMCCs) is reported, which can be considered a combination of two well-known families, TM carbides (MXenes) and TM dichalcogenides (TMDCs), at the atomic level. Single sheets are successfully obtained from multilayered Nb2 S2 C and Ta2 S2 C using electrochemical lithiation followed by sonication in water. The parent multilayered TMCCs are synthesized using a simple, scalable solid-state synthesis followed by a topochemical reaction. A superconductivity transition is observed at 7.55 K for Nb2 S2 C. The delaminated Nb2 S2 C outperforms both multilayered Nb2 S2 C and delaminated NbS2 as an electrode material for Li-ion batteries. Ab initio calculations predict the elastic constant of TMCC to be over 50% higher than that of TMDC.
Place, publisher, year, edition, pages Weinheim, Germany: Wiley-VCH Verlagsgesellschaft, 2022. Vol. 34, no 26, article id 2200574
Keywords [en]
2D materials; delamination; superconductors; transition metal carbo-chalcogenides
National Category
Inorganic Chemistry
Identifiers URN: urn:nbn:se:liu:diva-185435 DOI: 10.1002/adma.202200574 ISI: 000797779800001 PubMedID: 35419882 Scopus ID: 2-s2.0-85130283684 OAI: oai:DiVA.org:liu-185435 DiVA, id: diva2:1664160
Note Funding Agencies: National Science Foundation [DMR-1752997, DMR-2048164]; Knut and Alice Wallenberg (KAW) Foundation [KAW 2015.0043]; Linköping Electron Microscopy Laboratory; Swedish Foundation for Strategic Research (SSF) [RIF 14-0074, EM16-0004]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linköping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; U.S. Department of Energy, Office of Science, Basic Energy Science [DE-SC0014208]
2022-06-032022-06-032023-03-16 Bibliographically approved