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author:

李猛 (李猛.) [1] | 俞建长 (俞建长.) [2] (Scholars:俞建长)

Indexed by:

CQVIP PKU CSCD

Abstract:

采用十六烷基三甲基溴化铵(CTAB)作为模板剂,正硅酸乙酯(TEOS)为硅源,在碱性条件下,用低温合成方法合成了有序介孔硅,并以此为硬模板,蔗糖为碳前驱体,采用液相浸渍方法填充碳源,制备出有序介孔碳.通过XRD、TEM、N2吸附-脱附等测试方法对其表征,结果表明合成的介孔材料高度有序,均具有很高的比表面积(介孔硅,992~1096 m2/g;介孔碳,930~1208 m2/g),较大的孔容和较窄的孔径分布.还发现随着反应温度的升高,介孔硅的结构从二维六方相(p6mm)转变为三维立方相(Ia3d);介孔碳在复制介孔硅后,其结构也从三维立方相(Ia3d)转变为四方相(I41/a),并对相转变机理做了初步探讨.

Keyword:

介孔硅 介孔碳 相转变

Community:

  • [ 1 ] [李猛]福州大学
  • [ 2 ] [俞建长]福州大学

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Source :

化学学报

ISSN: 0567-7351

CN: 31-1320/O6

Year: 2011

Issue: 2

Volume: 69

Page: 226-230

0 . 5 3 3

JCR@2011

1 . 7 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 5

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