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题名: Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation
作者: Zhang, Zailei1;  Zhu, Yihan2;  Asakura, Hiroyuki3, 4;  Zhang, Bin1;  Zhang, Jiaguang1;  Zhou, Maoxiang5;  Han, Yu2, 6;  Tanaka, Tsunehiro3, 4;  Wang, Aiqin5;  Zhang, Tao5;  Yan, Ning1
刊名: NATURE COMMUNICATIONS
发表日期: 2017-07-27
DOI: 10.1038/ncomms16100
卷: 8
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: Single-atom metal catalysts offer a promising way to utilize precious noble metal elements more effectively, provided that they are catalytically active and sufficiently stable. Herein, we report a synthetic strategy for Pt single-atom catalysts with outstanding stability in several reactions under demanding conditions. The Pt atoms are firmly anchored in the internal surface of mesoporous Al2O3, likely stabilized by coordinatively unsaturated pentahedral Al3+ centres. The catalyst keeps its structural integrity and excellent performance for the selective hydrogenation of 1,3-butadiene after exposure to a reductive atmosphere at 200 degrees C for 24 h. Compared to commercial Pt nanoparticle catalyst on Al2O3 and control samples, this system exhibits significantly enhanced stability and performance for n-hexane hydro-reforming at 550 degrees C for 48 h, although agglomeration of Pt single-atoms into clusters is observed after reaction. In CO oxidation, the Pt single-atom identity was fully maintained after 60 cycles between 100 and 400 degrees C over a one-month period.
关键词[WOS]: METAL-SUPPORT INTERACTIONS ;  ATOMICALLY DISPERSED PALLADIUM ;  WATER-GAS SHIFT ;  PLATINUM NANOPARTICLES ;  CERIA CATALYSTS ;  N-HEXANE ;  ELECTROCHEMICAL REACTIONS ;  GOLD NANOPARTICLES ;  ACTIVE-SITES ;  SURFACE
语种: 英语
WOS记录号: WOS:000406360300001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149793
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore
2.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Adv Membranes & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia
3.Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Kyoto 6158510, Japan
4.Kyoto Univ, ESICB, Kyoto 6158245, Japan
5.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
6.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, KAUST Catalysis Ctr, Thuwal 239556900, Saudi Arabia

Recommended Citation:
Zhang, Zailei,Zhu, Yihan,Asakura, Hiroyuki,et al. Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation[J]. NATURE COMMUNICATIONS,2017,8.
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