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Hierarchically porous silica composites via a colloidal reaction sequence
Yu, Ran1,2; Li, Guoliang3; Huang, Wei1; Tauer, Klaus2
2017-10-16
发表期刊POLYMER
ISSN0032-3861
卷号128期号:OCT页码:40-46
摘要

A new class of polymeric colloids, multiple suspension particles (MSP), with a size of several micrometers consisting of many small polystyrene particles with a diameter below 100 nm grown in a poly (N-iso-propyl acrylamide) precursor scaffold is obtained, as reported in our previous paper. Herein, the unique MSP are applied as template for silica nanocasting and hierarchically organized porous silica with raspberry-like aggregation structure is obtained. The aggregates with a diameter of about 1 mm are composed of thousands of hollow silica particles, which are with a size of about 70 nm originating from polystyrene particles and with mesopores of about 5.8 nm on the shell from PNIPAM chains. The aggregates have high specific surface area and pore volume. With the advantage of high mass transport contributed by macropores and of high specific surface area due to mesopores, the hierarchically organized structure has great potential application in catalysis field. (C) 2017 Elsevier Ltd. All rights reserved.

关键词Multiple Suspension Particles Nanocasting Silica Catalysis
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.polymer.2017.09.016
收录类别SCI
语种英语
关键词[WOS]MESOPOROUS MOLECULAR-SIEVES ; PHYSICAL ADSORPTION CHARACTERIZATION ; CORE-SHELL PARTICLES ; LARGE PORES ; NANOPOROUS MATERIALS ; GOLD NANOPARTICLES ; CATALYTIC-ACTIVITY ; SIZE ; TEMPLATES ; HYDRODESULFURIZATION
WOS研究方向Polymer Science
WOS类目Polymer Science
项目资助者Max Planck Society ; Chinese Academy of Sciences
WOS记录号WOS:000413399300005
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23302
专题研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
2.Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Yu, Ran,Li, Guoliang,Huang, Wei,et al. Hierarchically porous silica composites via a colloidal reaction sequence[J]. POLYMER,2017,128(OCT):40-46.
APA Yu, Ran,Li, Guoliang,Huang, Wei,&Tauer, Klaus.(2017).Hierarchically porous silica composites via a colloidal reaction sequence.POLYMER,128(OCT),40-46.
MLA Yu, Ran,et al."Hierarchically porous silica composites via a colloidal reaction sequence".POLYMER 128.OCT(2017):40-46.
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