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- Title
Insights into the Electrochemical Polymerization of [Mo<sub>3</sub>S<sub>13</sub>]<sup>2−</sup> Generating Amorphous Molybdenum Sulfide.
- Authors
Duong, Tuan M.; Nguyen, Phuc D.; Nguyen, Anh D.; Le, Ly T.; Nguyen, Loan T.; Pham, Hai V.; Tran, Phong D.
- Abstract
Amorphous molybdenum sulfide is an attractive electrode material for Li/Mg batteries and an efficient Pt‐free catalyst for the hydrogen evolution reaction in water. By using the electrochemical quartz crystal microbalance (EQCM) analysis, new insights were gained into the electrochemical polymerization of the [Mo3S13]2− cluster, which generates amorphous molybdenum sulfide thin films. In this work, it is shown that, at the anodic potential, a two‐electron oxidative elimination of the terminal disulfide ligand within the [Mo3S13]2− cluster induces the polymerization. A reductive elimination of the terminal disulfide ligand also occurs at the cathodic potential, inducing the polymerization. However, in sharp contrast to the anodic polymerization, according to which the film growth is rapid, the cathodic polymerization competes with the electrochemical reductive corrosion of the readily grown film, therefore occurring at a significant lower growth rate.
- Subjects
MOLYBDENUM sulfides; HYDROGEN evolution reactions; QUARTZ crystal microbalances; POLYMERIZATION; ELECTROLYTIC corrosion; THIN films
- Publication
Chemistry - A European Journal, 2019, Vol 25, Issue 60, p13676
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201903098