Synthesis, characterization and catalytic activity of ZAPO-5 and ZAPO-11

被引：30

作者：

Elangovan, SP ^{[1
]}

Krishnasamy, V ^{[1
]}

Murugesan, V ^{[1
]}

机构：

[1] ANNA UNIV,DEPT CHEM,MADRAS 600025,TAMIL NADU,INDIA

来源：

CATALYSIS LETTERS | 1996年 / 36卷 / 3-4期

关键词：

ZAPO-5; ZAPO-11; molecular sieves; camphene; solid state Al-27 and P-31 NMR;

D O I：

10.1007/BF00807632

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：

Zinc containing aluminophosphates (ZAPO-5 and ZAPO-11) were synthesized hydrothermally using triethylamine and dipropylamine as templates. Structures were confirmed from X-ray powder patterns and unit cell parameters were calculated by a standard least-squares refinement technique. The isomorphous substitution of zinc in the aluminophosphate framework is evidenced by the considerable increase in unit cell volume and from MAS-NMR spectra. Acidity was determined by the TPD-TGA method which shows three different strengths of acid sites. FT-IR, chemical analysis and BET surface area were also reported. The physico-chemical properties of the catalysts were correlated towards the vapour phase transformation of camphene and the results are fully discussed.

引用

页码：271 / 277

页数：7

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