TY - JOUR
T1 - Synthesis of edge-enriched WS2 on high surface area WS2 framework by atomic layer deposition for electrocatalytic hydrogen evolution reaction
AU - Balasubramanyam, Shashank
AU - Bloodgood, Matthew A.
AU - Zhang, Yue
AU - Verheijen, Marcel A.
AU - Kessels, Wilhelmus M.M.
AU - Hofmann, Jan P.
AU - Bol, Ageeth A.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85093959348&partnerID=8YFLogxK
U2 - 10.1116/6.0000563
DO - 10.1116/6.0000563
M3 - Article
AN - SCOPUS:85093959348
VL - 38
JO - Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films
JF - Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films
SN - 0734-2101
IS - 6
M1 - 062201
ER -