Unveiling the enhanced electrocatalytic activity at electrochemically synthesized Pt–WOx hybrid nanostructure interfaces

Lee Seul Oh; Ju Ye Kim; Hyun Woo Kim; Jeonghyun Han; Eunho Lim; Won Bae Kim; Jong Hyeok Park; Hyung Ju Kim

doi:10.1039/D1CC04535K

Unveiling the enhanced electrocatalytic activity at electrochemically synthesized Pt–WO_x hybrid nanostructure interfaces†

Lee Seul Oh,^ab Ju Ye Kim,

^a Hyun Woo Kim,^c Jeonghyun Han,^ad Eunho Lim,

^a Won Bae Kim,

^d Jong Hyeok Park

^b and Hyung Ju Kim

*^ae

Author affiliations

* Corresponding authors

^a Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, South Korea
E-mail: hjkim@krict.re.kr

^b Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea

^c Chemical Data-Driven Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, South Korea

^d Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673, South Korea

^e Advanced Materials and Chemical Engineering, University of Science and Technology (UST), 113 Gwahangno, Yuseong-gu, Daejeon 34113, South Korea

Abstract

Here we report a simple synthesis strategy for Pt–WO_x hybrid nanostructures using a metal-dissolution-based electrodeposition technique. The hybrid nanostructures demonstrate an excellent catalytic hydrogen evolution reaction performance with an approximately 17 times higher Pt mass activity and a 7.4 times higher turnover frequency than those of commercial Pt catalysts. The enhanced electrocatalytic performance is related to the creation of Pt–WO_x interfacial sites.

This article is part of the themed collection: 2021 Emerging Investigators

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Article information

DOI: https://doi.org/10.1039/D1CC04535K
Article type: Communication
Submitted: 18 aug 2021
Accepted: 15 sep 2021
First published: 16 sep 2021

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Chem. Commun., 2021,57, 11165-11168

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Unveiling the enhanced electrocatalytic activity at electrochemically synthesized Pt–WO_x hybrid nanostructure interfaces

L. S. Oh, J. Y. Kim, H. W. Kim, J. Han, E. Lim, W. B. Kim, J. H. Park and H. J. Kim, Chem. Commun., 2021, 57, 11165 DOI: 10.1039/D1CC04535K

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