Substitution of copper atoms into defect-rich molybdenum sulfides and their electrocatalytic activity.

Autor: Wang Z; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu., Kannan H; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu., Su T; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu.; School of Materials Science and Engineering, Beihang University Beijing 100091 P.R. China., Swaminathan J; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu., Shirodkar SN; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu., Robles Hernandez FC; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu.; Department of Mechanical Engineering Technology, University of Houston Houston Texas 77204-4020 USA., Benavides HC; Departamento de Física, ESFM-IPN, Ed. 9, Instituto Politécnico Nacional UPALM Mexico D.F. 07738 Mexico., Vajtai R; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu.; Interdisciplinary Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged Rerrich Béla Tér 1 Szeged H-6720 Hungary., Yakobson BI; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu., Meiyazhagan A; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu., Ajayan PM; Department of Materials Science and NanoEngineering, Rice University Houston TX 77005 USA ma37@rice.edu ajayan@rice.edu.
Jazyk: angličtina
Zdroj: Nanoscale advances [Nanoscale Adv] 2021 Jan 26; Vol. 3 (6), pp. 1747-1757. Date of Electronic Publication: 2021 Jan 26 (Print Publication: 2021).
DOI: 10.1039/d0na01064b
Abstrakt: Studies on intercalation or substitution of atoms into layered two-dimensional (2D) materials are rapidly expanding and gaining significant consideration due to their importance in electronics, catalysts, batteries, sensors, etc. In this manuscript, we report a straightforward method to create sulphur (S) deficient molybdenum (Mo) sulfide (MoS 2- x ) structures and substitute them with zerovalent copper (Cu) atoms using a colloidal synthesis method. The synthesized materials were studied using several techniques to understand the proportion and position of copper atoms and the effect of copper functionalization. Specifically, the impact of change in the ratio of Cu : S and the hydrogen evolution reaction (HER) activity of the derived materials were evaluated. This technique paves the way for the synthesis of various functionalized 2D materials with a significant impact on their physical and chemical behavior making them potential candidates for catalysis and several other applications such as energy storage and the development of numerous functional devices.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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