Confining Sub-Nanometer Pt Clusters in Hollow Mesoporous Carbon Spheres for Boosting Hydrogen Evolution Activity

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number1901349
Journal / PublicationAdvanced Materials
Volume32
Issue number7
Online published26 Dec 2019
Publication statusPublished - 20 Feb 2020
Externally publishedYes

Abstract

Electrochemical water splitting is considered as a promising approach to produce clean and sustainable hydrogen fuel. As a new class of nanomaterials with high ratio of surface atoms and tunable composition and electronic structure, metal clusters are promising candidates as catalysts. Here, a new strategy is demonstrated to synthesize active and stable Pt-based electrocatalysts for hydrogen evolution by confining Pt clusters in hollow mesoporous carbon spheres (Pt5/HMCS). Such a structure would effectively stabilize the Pt clusters during the ligand removal process, leading to remarkable electrocatalytic performance for hydrogen production in both acidic and alkaline solutions. Particularly, the optimal Pt5/HMCS electrocatalyst exhibits 12 times the mass activity of Pt in commercial Pt/C catalyst with similar Pt loading. This study exemplifies a simple yet effective approach to improve the cost effectiveness of precious-metal-based catalysts with stabilized metal clusters. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Research Area(s)

  • electrocatalysis, hydrogen evolution reaction, mesoporous carbon, Pt clusters

Citation Format(s)

Confining Sub-Nanometer Pt Clusters in Hollow Mesoporous Carbon Spheres for Boosting Hydrogen Evolution Activity. / Wan, Xian-Kai; Wu, Hao Bin; Guan, Bu Yuan et al.
In: Advanced Materials, Vol. 32, No. 7, 1901349, 20.02.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review