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journal article·2025-07Open access

Flash Thermal Shock Synthesis of Heterostructured Transition Metal Dichalcogenides and Carbides in Milliseconds

Euichul Shin, Dong‐Ha Kim, Mingyu Sagong, Jacob Choe, Seo Hak Park, Jaewan Ahn, Jong Won Baek, Minhyun Kim, Sungyoon Woo, Yujang Cho, Seon‐Jin Choi, Sang‐Joon Kim, Jong Min Yuk, Ju Li, Sung‐Yool Choi, Il‐Doo Kim

Advanced Materials· Volume 37· Issue 30
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Abstract

Abstract Transition metal dichalcogenides (TMDs) offer remarkable potential for next‐generation functional devices, but achieving ultrafast synthesis with precise structural and phase control under ambient conditions remains a significant challenge. Here, ultrafast photothermal annealing assisted by graphene oxide is introduced for precise phase control of TMDs forming a heterostructure. This process reaches adjustable temperatures between 1 768 and 3 162 K within 10 ms, featuring rapid kinetics, enabling the synthesis of various metastable nanomaterials in ambient air. The TMDs form directly from precursors above 1 700 K, while temperatures above 2 300 K induce carbothermic reactions, producing metastable transition metal carbides (TMCs) and core@shell heterostructures (TMC@TMD and TMC@carbon). Introducing seed materials like single metals, metal oxides, and multielement/high‐entropy alloys enables the formation of core(seed)@shell (TMD) heterostructures. The resulting composites demonstrated significantly enhanced catalytic performance in gas sensing and hydrogen production. This robust and versatile photothermal annealing method holds broad potential for designing advanced heterostructure‐engineered TMD and/or TMC composites tailored for targeted applications.
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Research context

Metals & alloysNanomaterialsCompositesCatalysis & surfacesMaterials processing

OpenAlex topics: 2D Materials and Applications · MXene and MAX Phase Materials · Organic and Molecular Conductors Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology 291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea

Department of Materials Science & Chemical Engineering Hanyang University‐ERICA 55 Hanyangdaehak‐ro, Sangnok‐gu Ansan Gyeonggi‐do 15588 Republic of Korea

School of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea

Division of Materials of Science and Engineering Hanyang University 222 Wangsimni‐ro Seongdong‐gu Seoul 04763 Republic of Korea

Department of Materials Science and Engineering Chungnam National University Daejeon 34134 Republic of Korea

Department of Nuclear Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Department of Materials Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Membrane Innovation Center for Anti‐Virus & Air‐Quality Control KI Nanocentury KAIST, 291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea

Funding

National Research Foundation of Korea · Ministry of Science and ICT, South Korea

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