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

Xian-Kai Wan; Hao Bin Wu; Bu Yuan Guan; Deyan Luan; Xiong Wen (David) Lou

doi:10.1002/adma.201901349

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

Xian-Kai Wan, Hao Bin Wu, Bu Yuan Guan, Deyan Luan, Xiong Wen (David) Lou^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

362 Citations (Scopus)

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

Original language	English
Article number	1901349
Journal	Advanced Materials
Volume	32
Issue number	7
Online published	26 Dec 2019
DOIs	https://doi.org/10.1002/adma.201901349
Publication status	Published - 20 Feb 2020
Externally published	Yes

Funding

X.-K.W. and H.B.W. contributed equally to this work. X.W.L. acknowledges the funding support from the National Research Foundation (NRF) of Singapore via the NRF investigatorship (NRF-NRFI2016-04). The authors thank Prof. Satoshi Muratsugu and Prof. Mizuki Tada from Nagoya University for kind support in some TEM characterization during revision.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

electrocatalysis
hydrogen evolution reaction
mesoporous carbon
Pt clusters

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10.1002/adma.201901349

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

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. {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

keywords = "electrocatalysis, hydrogen evolution reaction, mesoporous carbon, Pt clusters",

author = "Xian-Kai Wan and Wu, {Hao Bin} and Guan, {Bu Yuan} and Deyan Luan and Lou, {Xiong Wen (David)}",

year = "2020",

month = feb,

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doi = "10.1002/adma.201901349",

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T1 - Confining Sub-Nanometer Pt Clusters in Hollow Mesoporous Carbon Spheres for Boosting Hydrogen Evolution Activity

AU - Wan, Xian-Kai

AU - Wu, Hao Bin

AU - Guan, Bu Yuan

AU - Luan, Deyan

AU - Lou, Xiong Wen (David)

PY - 2020/2/20

Y1 - 2020/2/20

N2 - 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

AB - 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

KW - electrocatalysis

KW - hydrogen evolution reaction

KW - mesoporous carbon

KW - Pt clusters

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U2 - 10.1002/adma.201901349

DO - 10.1002/adma.201901349

M3 - RGC 21 - Publication in refereed journal

C2 - 31879997

SN - 0935-9648

VL - 32

JO - Advanced Materials

JF - Advanced Materials

IS - 7

M1 - 1901349

ER -

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

Abstract

Funding

UN SDGs

Research Keywords

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