SIC OpenIR
Size effects of platinum particles@CNT on HER and ORR performance
Ma, ZH; Tian, H; Meng, G; Peng, LX; Chen, YF; Chen, C; Chang, ZW; Cui, XZ; Wang, LJ; Jiang, W; Shi, JL
2020-08-11
Source PublicationSCIENCE CHINA-MATERIALS
ISSN2095-8226
SubtypeArticle; Early Access
AbstractPlatinum (Pt) is an efficient catalyst for hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR), but the debate of the relevance between the Pt particle size and its electrocatalytic activity still exist. The strong metal-support interaction (SMSI) between the metal and carrier causes the charge transfer and mass transport from the support to the metal. Herein, Pt species (0.5 wt.%) with various particle sizes supported on carbon nanotubes (CNTs) have been synthesized by a photo-reduction method. The similar to 1.5 nm-sized Pt catalyst shows much higher HER performance than the counterparts in all pH solutions, and the mass activity of it is even 23-36 times that of Pt/C. While for ORR, the similar to 3 nm-sized Pt catalyst exhibits the optimal performance, and the mass activity is 3 times and even 16 times that of Pt/C in acidic and alkaline media, respectively. The high HER and ORR performances of the similar to 1.5 nm- and similar to 3 nm-sized Pt catalysts benefit from the SMSI between Pt and the CNTs matrix and the higher ratio of face sites to edge sites, which is meaningful for the design of efficient electrocatalysts for renewable energy application.
DOI10.1007/s40843-020-1449-2
WOS KeywordMETAL-SUPPORT INTERACTIONS ; NITROGEN-DOPED CARBON ; OXYGEN-REDUCTION ; HYDROGEN EVOLUTION ; ELECTROCATALYSTS ; CATALYSTS ; NANOTUBES ; ELECTRODE ; GRAPHENE ; STRATEGY
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27840
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Ma, ZH,Tian, H,Meng, G,et al. Size effects of platinum particles@CNT on HER and ORR performance[J]. SCIENCE CHINA-MATERIALS,2020.
APA Ma, ZH.,Tian, H.,Meng, G.,Peng, LX.,Chen, YF.,...&Shi, JL.(2020).Size effects of platinum particles@CNT on HER and ORR performance.SCIENCE CHINA-MATERIALS.
MLA Ma, ZH,et al."Size effects of platinum particles@CNT on HER and ORR performance".SCIENCE CHINA-MATERIALS (2020).
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