In:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, American Vacuum Society, Vol. 38, No. 6 ( 2020-12-01)
Abstract:
Transition metal dichalcogenides (TMDs) are promising electrocatalysts for the hydrogen evolution reaction (HER). Several approaches have been adopted to increase the density of the catalytically active edge-sites of TMDs including the use of high surface area 3D templates. In this work, we report the implementation of a high surface area WS2 framework grown using plasma-enhanced atomic layer deposition (PEALD) as templates to support edge-enriched PEALD grown WS2 electrocatalyst films. We show that these combined WS2 template-electrocatalyst configurations show better HER performance than the individual constituents. Material properties of the combined configurations including morphology and composition are investigated. A correlation between material properties and the HER performance is observed. This facile pathway could lead to a new route for creating high surface area electrocatalyst systems via PEALD.
Type of Medium:
Online Resource
ISSN:
0734-2101
,
1520-8559
Language:
English
Publisher:
American Vacuum Society
Publication Date:
2020
detail.hit.zdb_id:
1475424-1
detail.hit.zdb_id:
797704-9
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