CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Carbon vacancy defect-activated Pt cluster for hydrogen generation
Bao, XB; Gong, YT; Chen, YZ; Zhang, H; Wang, Z; Mao, SJ; Xie, L; Jiang, Z; Wang, Y
2019
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume7Issue:25Pages:15364-15370
Subtype期刊论文
AbstractProviding specific accommodation for supported metal clusters on the defective sites of supports is vital to disclose the function mechanism of the structural defects on metals and the fabrication of excellent catalysts. Here, stable platinum-group metal clusters (Pt, Pd and Au) trapped by structure defects within carbon nanotubes (CNTs) were fabricated with a simple and scalable in situ electrochemical strategy. The Pt clusters demonstrated superior electrocatalytic activity for the hydrogen evolution reaction (HER) with 100-fold increase over the mass activity of the benchmark 20 wt% Pt/C and a much lower overpotential. It was suggested that vacancy defective structures (di- and mono-vacancies) stabilized the Pt cluster from migration and oxidation and optimized the electronic densities of state, hence activating the Pt species for efficient HER with high stability. These results provide new insights into the effects of structural defects on active phases and afford a facile but competitive strategy to synthesize stable and desired catalysts.
KeywordOXYGEN REDUCTION REACTION SINGLE-ATOM CATALYSIS NANOPARTICLES EVOLUTION NANOTUBES GRAPHENE SUPPORT SITES WATER
DOI10.1039/c9ta04010b
Indexed BySCI
Language英语
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31988
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Zhejiang Univ, Inst Catalysis, Adv Mat & Catalysis Grp, Hangzhou 310028, Zhejiang, Peoples R China;
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Bao, XB,Gong, YT,Chen, YZ,et al. Carbon vacancy defect-activated Pt cluster for hydrogen generation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(25):15364-15370.
APA Bao, XB.,Gong, YT.,Chen, YZ.,Zhang, H.,Wang, Z.,...&Wang, Y.(2019).Carbon vacancy defect-activated Pt cluster for hydrogen generation.JOURNAL OF MATERIALS CHEMISTRY A,7(25),15364-15370.
MLA Bao, XB,et al."Carbon vacancy defect-activated Pt cluster for hydrogen generation".JOURNAL OF MATERIALS CHEMISTRY A 7.25(2019):15364-15370.
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