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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
Source PublicationPOLYMER
ISSN0032-3861
Volume128Issue:OCTPages:40-46
Abstract

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.

KeywordMultiple Suspension Particles Nanocasting Silica Catalysis
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.polymer.2017.09.016
Indexed BySCI
Language英语
WOS KeywordMESOPOROUS MOLECULAR-SIEVES ; PHYSICAL ADSORPTION CHARACTERIZATION ; CORE-SHELL PARTICLES ; LARGE PORES ; NANOPOROUS MATERIALS ; GOLD NANOPARTICLES ; CATALYTIC-ACTIVITY ; SIZE ; TEMPLATES ; HYDRODESULFURIZATION
WOS Research AreaPolymer Science
WOS SubjectPolymer Science
Funding OrganizationMax Planck Society ; Chinese Academy of Sciences
WOS IDWOS:000413399300005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23302
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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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