Large-Pore Cage like Silica with Necks of Molecular Dimensions

被引：10

作者：

Morishige, Kunimitsu ^{[1
]}

Yasuki, Tsubasa ^{[1
]}

机构：

[1] Okayama Univ Sci, Dept Chem, Kita Ku, Okayama 7000005, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 24期

关键词：

STRUCTURE-DIRECTING AGENTS; MESOPOROUS SILICA; ADSORPTION; SIZE; COPOLYMER; CATALYSTS; NITROGEN; SYSTEMS; SIEVES; SBA-2;

D O I：

10.1021/jp102727x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The neck size of five kinds of FDU-12 silicas prepared without and with the hydrothermal treatment at low temperatures was assessed by examining the molecular sieving effect for several different molecules. The results clearly indicate that the ordered silicas with cagelike pores thus obtained possess necks of molecular dimensions, and the size of the necks available for molecular sieving is increased with an increase in the hydrothermal treatment temperature. The molecular sieving effect of the cagelike silica is discussed based on bond-controlled percolation.

引用

页码：10910 / 10916

页数：7

共 34 条

[11] Argon adsorption at 77 K as a useful tool for the elucidation of pore connectivity in ordered materials with large cagelike mesopores [J].

Kruk, M ;

Jaroniec, M .

CHEMISTRY OF MATERIALS, 2003, 15 (15) :2942-2949

[12] Determination and tailoring the pore entrance size in ordered silicas with cage-like mesoporous structures [J].

Kruk, M ;

Antochshuk, V ;

Matos, JR ;

Mercuri, LP ;

Jaroniec, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (05) :768-769

[13] A titanosilicate molecular sieve with adjustable pores for size-selective adsorption of molecules [J].

Kuznicki, SM ;

Bell, VA ;

Nair, S ;

Hillhouse, HW ;

Jacubinas, RM ;

Braunbarth, CM ;

Toby, BH ;

Tsapatsis, M .

NATURE, 2001, 412 (6848) :720-724

[14] Selective gas adsorption and separation in metal-organic frameworks [J].

Li, Jian-Rong ;

Kuppler, Ryan J. ;

Zhou, Hong-Cai .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (05) :1477-1504

[15] STUDIES ON PORE SYSTEMS IN CATALYSTS .V. T METHOD [J].

LIPPENS, BC ;

DEBOER, JH .

JOURNAL OF CATALYSIS, 1965, 4 (03) :319-&

[16] Preparation and Gas Adsorption Studies of Three Mesh-Adjustable Molecular Sieves with a Common Structure [J].

Ma, Shengqian ;

Sun, Daofeng ;

Yuan, Daqiang ;

Wang, Xi-Sen ;

Zhou, Hong-Cai .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (18) :6445-6451

[17] Capillary condensation of nitrogen in MCM-41 and SBA-15 [J].

Morishige, K ;

Ito, M .

JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (17) :8036-8041

[18] Adsorption hysteresis in ink-bottle pore [J].

Morishige, K ;

Tateishi, N .

JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (04) :2301-2306

[19] Neck Size of Ordered Cage-Type Mesoporous Silica FDU-12 and Origin of Gradual Desorption [J].

Morishige, Kunimitsu ;

Yoshida, Kenji .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (15) :7095-7101

[20] Porous Structure of Ordered Silica with Cagelike Pores Examined by Successive Adsorption of Water and Nitrogen [J].

Morishige, Kunimitsu ;

Kanzaki, Yoshinori .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (33) :14927-14934

← 1 2 3 4 →