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- W2391689572 abstract "Silica membranes were modified by phenyl groups through an acid-catalyzed co-hydrolysis and condensation of tetraethylorthosilicate(TEOS) and phenyltriethoxysilane(PTES).The hydrogen permeation and separation performance of the phenyl-modified silica membranes and their role in the water gas shift reaction were investigated.The results show that the hydrogen transportation in the modified silica membranes is subjected to an activated diffusion mechanism,as demonstrated by the fact that hydrogen permeance increases with increasing temperatures.The silica membranes possess a hydrogen permeance of 4.67×10-7 mol /(m 2.s.Pa) and a permselectivity of 10.54,10.50and 21.16for H 2 / CO 、 H 2 / CO 2 and H 2 / SF 6 respectively at 300 ℃.The CO conversion of the membrane reactor is 12% higher than that of fixed-bed at a temperature of 300℃and a H 2 O / CO ratio of 2∶1,due to the hydrogen selective property of the modified silica membranes." @default.
- W2391689572 created "2016-06-24" @default.
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- W2391689572 date "2012-01-01" @default.
- W2391689572 modified "2023-09-26" @default.
- W2391689572 title "Phenyl-modified microporous silica membranes for hydrogen separation and water gas shift reaction" @default.
- W2391689572 hasPublicationYear "2012" @default.
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