Kim, Myeong-Geun Kim, Seung-Hoon Jang, Jue-Hyuk Lee, Dong Wook Choi, Daeil Park, Jae-Hyun Lee, Kug-Seung Chen, Nanjun Hu, Chuan Lee, Young Moo Yoo, Sung Jong 2024-01-19T10:30:28Z 2024-01-19T10:30:28Z 2023-03-02 2023-01 1614-6832 https://pubs.kist.re.kr/handle/201004/114118 Owing to their remarkable electrochemical activities, 1T phase transition metal dichalcogenide (TMD) materials have attracted considerable interest in recent decades. However, metastable 1T phases are difficult to prepare and readily change phases. Therefore, for the first time, a monolayer nanotubular 1T Ru dichalcogenide comprising 92% of the 1T phase is synthesized, which is the highest value ever obtained using solvothermal methods. In the tubular geometry, the 1T phase exhibits superior durability against various external stimuli and electrocatalytic activity toward the oxygen reduction reaction. According to density-functional-theory-based and molecular dynamics calculations, sufficiently curved architectures can change their bond identities to safely maintain 1T phases, hence providing a strategy for stabilizing metastable phases. The study results form a basis for extensively applying 1T phases and will stimulate interest for applying tubular structures for stabilizing metastable materials. English Wiley-VCH Verlag Nanotubular Geometry for Stabilizing Metastable 1T-Phase Ru Dichalcogenides Article 10.1002/aenm.202203133 1 Advanced Energy Materials, v.13, no.3 Advanced Energy Materials 13 3 N scie scopus 000918339900018 2-s2.0-85142775081 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Energy & Fuels Materials Science Physics Article SE nanotubes phase engineering transition metal dichalcogenides 1T phases electrocatalysts