Kwon, Do Hyun Jin, Zhenyu Shin, Seokhee Lee, Wook-Seong Min, Yo-Sep 2024-01-20T04:33:13Z 2024-01-20T04:33:13Z 2021-09-03 2016-04 2040-3364 https://pubs.kist.re.kr/handle/201004/124259 Atomic layer deposition (ALD) has emerged as an efficient method to design and prepare catalysts with atomic precision. Here, we report a comprehensive study on ALD of molybdenum sulfide (MoSx) for an electrocatalytic hydrogen evolution reaction. By using molybdenum hexacarbonyl and dimethyldisulfide as the precursors of Mo and S, respectively, the MoSx catalysts are grown at 100 degrees C on porous carbon fiber papers (CFPs). The ALD process results in the growth of particle-like MoSx on the CFP due to the lack of adsorption sites, and its crystallographic structure is a mixture of amorphous and nano-crystalline phases. In order to unveil the intrinsic activity of the ALD-MoSx, the exchange current densities, Tafel slopes, and turnover frequencies of the catalysts grown under various ALD conditions have been investigated by considering the fractional surface coverage of MoSx on the CFP and catalytically-active surface area. In addition, the ALD-MoSx/CFP catalysts exhibit excellent catalytic stability due to the strong adhesion of MoSx on the CFP and the mixed phase. English ROYAL SOC CHEMISTRY ACTIVE EDGE SITES MOS2 THIN-FILM ELECTROCATALYTIC MATERIALS GRAPHENE CATALYST SURFACES A comprehensive study on atomic layer deposition of molybdenum sulfide for electrochemical hydrogen evolution Article 10.1039/c5nr09065b 1 NANOSCALE, v.8, no.13, pp.7180 - 7188 NANOSCALE 8 13 7180 7188 scie scopus 000373060600030 2-s2.0-84961990593 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article ACTIVE EDGE SITES MOS2 THIN-FILM ELECTROCATALYTIC MATERIALS GRAPHENE CATALYST SURFACES