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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
KeywordDendrimers Heterogeneous Catalysis Nanoparticles Platinum Structure-activity Relationships
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
2015-07-13
DOI10.1002/chem.201500762
Volume21Issue:29Pages:10490-10496
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordRUTHENIUM NANOCLUSTER CATALYST ; MESOPOROUS SILICA NANOSPHERES ; HETEROGENEOUS CATALYSIS ; CORE ; MONODISPERSE ; OXIDATION ; ETHYLENE
AbstractThe 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.
Language英语
WOS IDWOS:000357328200031
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146386
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
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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