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Fabrication of Efficient Hydrogenation Nanoreactors by Modifying the Freedom of Ultrasmall Platinum Nanoparticles within Yolk-Shell Nanospheres
Peng, Juan; Lan, Guojun; Guo, Miao; Wei, Xuming; Li, Can; Yang, Qihua
关键词Dendrimers Heterogeneous Catalysis Nanoparticles Platinum Structure-activity Relationships
刊名CHEMISTRY-A EUROPEAN JOURNAL
2015-07-13
DOI10.1002/chem.201500762
21期:29页:10490-10496
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]RUTHENIUM NANOCLUSTER CATALYST ; MESOPOROUS SILICA NANOSPHERES ; HETEROGENEOUS CATALYSIS ; CORE ; MONODISPERSE ; OXIDATION ; ETHYLENE
英文摘要The synthesis of silica-based yolk-shell nanospheres confined with ultrasmall platinum nanoparticles (Pt NPs) stabilized with poly(amidoamine), in which the interaction strength between Pt NPs and the support could be facilely tuned, is reported. By ingenious utilization of silica cores with different surface wettability (hydrophilic vs. -phobic) as the adsorbent, Pt NPs could be confined in different locations of the yolk-shell nanoreactor (core vs. hollow shell), and thus, exhibit different interaction strengths with the nanoreactor (strong vs. weak). It is interesting to find that the adsorbed Pt NPs are released from the core to the hollow interiors of the yolk-shell nanospheres when a superhydrophobic inner core material (SiO2Ph) is employed, which results in the preparation of an immobilized catalyst (Pt@SiO2Ph); this possesses the weakest interaction strength with the support and shows the highest catalytic activity (88500 and 7080h(-1) for the hydrogenation of cyclohexene and nitrobenzene, respectively), due to its unaffected freedom of Pt NPs for retention of the intrinsic properties.
语种英语
WOS记录号WOS:000357328200031
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146386
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Peng, Juan,Lan, Guojun,Guo, Miao,et al. Fabrication of Efficient Hydrogenation Nanoreactors by Modifying the Freedom of Ultrasmall Platinum Nanoparticles within Yolk-Shell Nanospheres[J]. CHEMISTRY-A EUROPEAN JOURNAL,2015,21(29):10490-10496.
APA Peng, Juan,Lan, Guojun,Guo, Miao,Wei, Xuming,Li, Can,&Yang, Qihua.(2015).Fabrication of Efficient Hydrogenation Nanoreactors by Modifying the Freedom of Ultrasmall Platinum Nanoparticles within Yolk-Shell Nanospheres.CHEMISTRY-A EUROPEAN JOURNAL,21(29),10490-10496.
MLA Peng, Juan,et al."Fabrication of Efficient Hydrogenation Nanoreactors by Modifying the Freedom of Ultrasmall Platinum Nanoparticles within Yolk-Shell Nanospheres".CHEMISTRY-A EUROPEAN JOURNAL 21.29(2015):10490-10496.
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