| Nanofence Stabilized Platinum Nanoparticles Catalyst via Facet-Selective Atomic Layer Deposition | |
Cao, K; Shi, L; Gong, M ; Cai, JM; Liu, X; Chu, SQ; Lang, Y; Shan, B; Chen, R; Chu SQ(储胜启)
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| 2017 | |
| Source Publication | SMALL
 |
| ISSN | 1613-6810 |
| EISSN | 1613-6829 |
| Volume | 13Issue:32Pages:1700648 |
| Subtype | Article |
| Abstract | A facet-selective atomic layer deposition method is developed to fabricate oxide nanofence structure to stabilize Pt nanoparticles. CeOx is selectively deposited on Pt nanoparticles' (111) facets and naturally exposes Pt (100) facets. The facet selectivity is realized through different binding energies of Ce precursor fragments chemisorbed on Pt (111) and Pt (100), which is supported by in situ mass gain experiment and corroborated by density functional theory simulations. Such nanofence structure not only has exposed Pt active facets for carbon monoxide oxidation but also forms ceria-metal interfaces that are beneficial for activity enhancement. The composite catalysts show excellent sintering resistance up to 700 degrees C calcination. CeOx anchors Pt nanoparticles with a strong metal oxide interaction, and nanofence structure around Pt nanoparticles provides physical blocking that suppresses particles migration. The study reveals that forming oxide nanofence structure to encapsulate precious metal nanoparticles is an effective way to simultaneously enhance catalytic activity and thermal stability. |
| DOI | 10.1002/smll.201700648 |
| WOS Keyword | CORE-SHELL NANOPARTICLES ; SINGLE-ATOM ; METAL NANOPARTICLES ; SUPPORT INTERACTION ; OXYGEN REDUCTION ; CERIA CATALYSTS ; MODEL CATALYSTS ; OXIDATION ; PD ; HYDROGENATION |
| Indexed By | SCI ; EI ; PUBMED ; SCOPUS |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000408012900001 |
| EI Accession Number | 20172703878409 |
| EI Keywords | Atomic layer deposition - Atoms - Binding energy - Carbon monoxide - Catalyst activity - Cerium oxide - Density functional theory - Metal nanoparticles - Platinum metals - Sintering |
| EI Classification Number | 547.1 Precious Metals - 761 Nanotechnology - 801.4 Physical Chemistry - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 813.1 Coating Techniques - 931.3 Atomic and Molecular Physics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/285146 |
| Collection | 多学科研究中心 粒子天体物理中心 理论物理室 |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| Recommended Citation GB/T 7714 | Cao, K,Shi, L,Gong, M,et al. Nanofence Stabilized Platinum Nanoparticles Catalyst via Facet-Selective Atomic Layer Deposition[J]. SMALL,2017,13(32):1700648. |
| APA | Cao, K.,Shi, L.,Gong, M.,Cai, JM.,Liu, X.,...&储胜启.(2017).Nanofence Stabilized Platinum Nanoparticles Catalyst via Facet-Selective Atomic Layer Deposition.SMALL,13(32),1700648. |
| MLA | Cao, K,et al."Nanofence Stabilized Platinum Nanoparticles Catalyst via Facet-Selective Atomic Layer Deposition".SMALL 13.32(2017):1700648. |
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