Dehydration of 1-propanol using H3PW12O40 as catalyst

被引：32

作者：

Dias, JA

Dias, SCL

Kob, NE

机构：

[1] Univ Brasilia, Inst Quim, Lab Catalise, BR-70919970 Brasilia, DF, Brazil

[2] Dupont Co, Expt Stn, Wilmington, DE 19880 USA

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2001年 / 03期

关键词：

acid-base; catalysis; heterogeneous; isopolyanions; heteropolyanions;

D O I：

10.1039/b005256f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The activation of H3PW12O40 under different thermal conditions has been evaluated by calorimetry in acetonitrile solution using pyridine as a probe, and the results correlated to the dehydration of 1-propanol. Treatments at 200, 300, and 400 degreesC show substantial changes in the catalytic activity of 12-tungstophosphoric acid as a function of activation temperature and time. Analysis of the samples by XRD, FTIR, TGA and DSC was performed to determine structural changes and thermal stability of the heteropolytungstic acid.

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收藏

页码：228 / 231

页数：4

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