KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| 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 Publication | SCIENCE CHINA-MATERIALS
 |
| ISSN | 2095-8226 |
| Subtype | Article; Early Access |
| Abstract | Platinum (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. |
| DOI | 10.1007/s40843-020-1449-2 |
| WOS Keyword | METAL-SUPPORT INTERACTIONS ; NITROGEN-DOPED CARBON ; OXYGEN-REDUCTION ; HYDROGEN EVOLUTION ; ELECTROCATALYSTS ; CATALYSTS ; NANOTUBES ; ELECTRODE ; GRAPHENE ; STRATEGY |
| Language | 英语 |
| WOS Research Area | Materials Science |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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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