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题名: Yolk-shell nanospheres with soluble amino-polystyrene as a reservoir for Pd NPs
作者: Lan, Guojun1, 2;  Zhang, Xiaoming2;  Zhang, Xiaomin2;  Li, Mingrun2;  Li, Ying1;  Yang, Qihua2
刊名: RSC ADVANCES
发表日期: 2015
DOI: 10.1039/c5ra04923g
卷: 5, 期:45, 页:35730-35736
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
英文摘要: The fabrication of silica/polymer composites with high polymer content, high stability and unique nanostructures still remains a difficult task though they have wide potential applications in the field of sensing, catalysis, bio-imaging and so on. Herein, the synthesis of yolk-shell nanospheres with soluble amino-polystyrene as a core material (PS-NH2@mesoSiO(2) YSNs) have been reported, which is achieved by successive nitration and reduction of polystyrene nanospheres (PS) confined in silica hollow shells. Both the thermal stability and anti-swelling ability of PS-NH2 in the core of yolk-shell nanospheres are greatly enhanced due to the confinement effect. PS-NH2@mesoSiO(2) could be used as a reservoir for stabilizing Pd NPs. PS-NH2@mesoSiO(2) YSNs with high amino content have high anti-swelling ability and result in Pd NPs with small particle size and high stability. Pd/PS-NH2@mesoSiO(2) is an efficient catalyst for the selective hydrogenation of acetophenone (AP) to produce alpha-phenyl ethanol (PE). NH2 groups in the core of PS-NH2@mesoSiO(2) yolk-shell nanospheres not only stabilize Pd nanoparticles but also provide basic surroundings for suppressing the hydrogenolytic splitting of the C-OH to improve the selectivity for alpha-phenyl ethanol.
关键词[WOS]: IMMOBILIZED PALLADIUM NANOPARTICLES ;  CATALYTIC-ACTIVITY ;  CORE-SHELL ;  ACETOPHENONE ;  HYDROGENATION ;  SELECTIVITY ;  SILICA ;  SIZE ;  NANOSTRUCTURE ;  SUPPORT
语种: 英语
WOS记录号: WOS:000353648400046
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146220
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.Zhejiang Univ Technol, Inst Ind Catalysis, Hangzhou 310014, Zhejiang, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Lan, Guojun,Zhang, Xiaoming,Zhang, Xiaomin,et al. Yolk-shell nanospheres with soluble amino-polystyrene as a reservoir for Pd NPs[J]. RSC ADVANCES,2015,5(45):35730-35736.
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