OH-Cr(III) in dioctahedral and trioctahedral smectites: Texture and structure changes

被引：9

作者：

Volzone, C

机构：

[1] CETMIC, M.B. Gonnet, Prov. Buenos Aires, Cno. Centenario 506

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1997年 / 47卷 / 01期

关键词：

smectites; hydroxy-chromium species; texture;

D O I：

10.1016/S0254-0584(97)80021-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydroxy-chromium smectites are of interest for use in catalysis and as adsorbents. This paper determines the influence of the OH-Cr species on the structure and texture of dioctahedral smectites (montmorillonite, beidellite and nontronite) and trioctahedral smectites (saponite and hectorite). Interlayers with larger spacing (approximately 2.05 nm), different specific areas and micropore volumes were obtained. Such behavior could be related to the different structural characteristics of the smectites.

引用

收藏

页码：13 / 16

页数：4

相关论文

共 22 条

[1] SHAPE SELECTIVITY IN LOW-TEMPERATURE REACTIONS OF C6-ALKENES CATALYZED BY A CU2+-EXCHANGED MONTMORILLONITE [J].

ADAMS, JM ;

BYLINA, A ;

GRAHAM, SH .

CLAY MINERALS, 1981, 16 (04) :325-332

[2] SYNTHESIS OF METHYL-TERT-BUTYL ETHER FROM METHANOL AND ISOBUTENE USING A CLAY CATALYST [J].

ADAMS, JM ;

CLEMENT, DE ;

GRAHAM, SH .

CLAYS AND CLAY MINERALS, 1982, 30 (02) :129-134

[3]

[Anonymous], ADSORPTION SURFACE A, DOI DOI 10.1002/BBPC.19820861019

[4] MONTMORILLONITE CATALYSTS FOR ETHYLENE HYDRATION [J].

ATKINS, MP ;

SMITH, DJH ;

WESTLAKE, DJ .

CLAY MINERALS, 1983, 18 (04) :423-429

[5] ORGANIC-REACTIONS IN A CLAY MICROENVIRONMENT [J].

BALLANTINE, JA ;

PURNELL, JH ;

THOMAS, JM .

CLAY MINERALS, 1983, 18 (04) :347-356

[6] ORGANIC-REACTIONS CATALYZED BY SHEET SILICATES - ETHER FORMATION BY THE INTERMOLECULAR DEHYDRATION OF ALCOHOLS AND BY ADDITION OF ALCOHOLS TO ALKENES [J].

BALLANTINE, JA ;

DAVIES, M ;

PATEL, I ;

PURNELL, JH ;

RAYANAKORN, M ;

WILLIAMS, KJ ;

THOMAS, JM .

JOURNAL OF MOLECULAR CATALYSIS, 1984, 26 (01) :37-56

[7] ORGANIC-REACTIONS CATALYZED BY SHEET SILICATES - ESTER PRODUCTION BY THE DIRECT ADDITION OF CARBOXYLIC-ACIDS TO ALKENES [J].

BALLANTINE, JA ;

DAVIES, M ;

ONEIL, RM ;

PATEL, I ;

PURNELL, JH ;

RAYANAKORN, M ;

WILLIAMS, KJ ;

THOMAS, JM .

JOURNAL OF MOLECULAR CATALYSIS, 1984, 26 (01) :57-77

[8]

BRINDLEY GW, 1979, AM MINERAL, V64, P830

[9] HYDRATION STATES OF INTERLAMELLAR CHROMIUM IONS IN MONTMORILLONITE [J].

CARR, RM .

CLAYS AND CLAY MINERALS, 1985, 33 (04) :357-361

[10] EFFECT OF HEATING IN-VACUO ON MICROPOROSITY OF SEPIOLITE [J].

DANDY, AJ ;

NADIYETABBIRUKA, MS .

CLAYS AND CLAY MINERALS, 1975, 23 (06) :428-430