@article{2d6cc2ea56b04a2ca0b15101717ce463,
title = "Design of 2D Layered Catalyst by Coherent Heteroepitaxial Conversion for Robust Hydrogen Generation",
abstract = "The structural engineering of 2D layered materials is emerging as a powerful strategy to design catalysts for high-performance hydrogen evolution reaction (HER). However, the ultimate test of this technology under typical operating settings lies in the reduced performance and the shortened lifespan of these catalysts. Here, a novel approach is proposed to design efficient and robust HER catalysts through out-of-plane deformation of 2D heterojunction using metal-organic chemical vapor deposition. High-yield, single-crystalline WTe2 nanobelts are used as an epitaxial template for their coherent conversion to WS2. During the conversion process, the WTe2/WS2 heterostructure containing both lateral and vertical junctions are achieved by coherent heteroepitaxial stacking despite differences in symmetry. The lattice coherency drives out-of-plane deformation of heteroepitaxially grown WS2. The increase in the effective surface area and decrease in the electron-transfer resistance across the 2D heterojunctions in turn enhances the HER performance as well as the long-term durability of these electrocatalysts.",
keywords = "2D heterojunctions, atomic-scale engineering, coherent heteroepitaxial conversion, hydrogen evolution reaction, metal-organic chemical vapor deposition",
author = "Yeoseon Sim and Aram Yoon and Kang, {Hee Seong} and Jinsung Kwak and Kim, {Se Yang} and Yongsu Jo and Daeseong Choe and Woongki Na and Lee, {Min Hee} and Park, {Soon Dong} and Seunguk Song and Daeyong Kim and Yoo, {Jung Woo} and Kim, {Sung Youb} and Hyeonsik Cheong and Lee, {Jae Sung} and Lee, {Chul Ho} and Zonghoon Lee and Kwon, {Soon Yong}",
note = "Funding Information: Y.S. and A.Y. contributed equally to this work. This work was supported by the National Research Foundation (NRF) of Korea (Nos. 2017R1E1A1A01075283, 2017M3A7B8065377, 2018R1A2A2A05019598, 2019R1A2C3006189, 2020M3D1A1110659), by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (No. 20174030201430) and the Industrial Core Technology Development Program (No. 10063579) funded by the Korea Government Ministry of Trade Industry and Energy (MOTIE), by the National Research Council of Science & Technology (NST)–Korea Institute of Materials Science (KIMS) Postdoctoral Research Fellowship for Young Scientists at KIMS in South Korea, by IBS‐R019‐D1, and by KU‐KIST school project. The authors gratefully acknowledge the supercomputing resources of the UNIST Supercomputing Center. Funding Information: Y.S. and A.Y. contributed equally to this work. This work was supported by the National Research Foundation (NRF) of Korea (Nos. 2017R1E1A1A01075283, 2017M3A7B8065377, 2018R1A2A2A05019598, 2019R1A2C3006189, 2020M3D1A1110659), by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (No. 20174030201430) and the Industrial Core Technology Development Program (No. 10063579) funded by the Korea Government Ministry of Trade Industry and Energy (MOTIE), by the National Research Council of Science & Technology (NST)?Korea Institute of Materials Science (KIMS) Postdoctoral Research Fellowship for Young Scientists at KIMS in South Korea, by IBS-R019-D1, and by KU-KIST school project. The authors gratefully acknowledge the supercomputing resources of the UNIST Supercomputing Center. Publisher Copyright: {\textcopyright} 2020 Wiley-VCH GmbH",
year = "2021",
month = feb,
day = "24",
doi = "10.1002/adfm.202005449",
language = "English",
volume = "31",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "Wiley-VCH Verlag",
number = "9",
}