Different dispersion behavior of glucose and sucrose on alumina and   silica surfaces

doi:10.1016/j.apsusc.2008.04.022

CORC > 北京大学 > 化学与分子工程学院

	Different dispersion behavior of glucose and sucrose on alumina and silica surfaces
	Wang, Y. ; Lin, L. ; Zhu, B. S. ; Zhu, Y. X. ; Xie, Y. C.
刊名	应用表面科学
	2008
关键词	monolayer-dispersion glucose sucrose alumina silica carbon-covered alumina CARBON-COVERED ALUMINA SPONTANEOUS MONOLAYER DISPERSION RUTHENIUM CATALYSTS AMMONIA-SYNTHESIS SUPPORTS ACIDS SPECTROSCOPY ORIENTATION ADSORPTION
DOI	10.1016/j.apsusc.2008.04.022
英文摘要	Phenomena of spontaneous monolayer-dispersion have been found in many salt and oxide/support systems as well as in organic compound/support systems. In this paper, the dispersion behaviors of glucose and sucrose have been systematically compared using three types of alumina with different textures and one type of silica gel, as supports. The dispersion capacity of the saccharides was determined by XRD quantitative phase analysis and confirmed by DTA-TG and FT-IR results. The pore size distribution of carbon-covered alumina (CCA) derived from the saccharide/alumina composite was employed to evaluate the dispersion state of the saccharide precursor. It was found that both sucrose and glucose are dispersed on the alumina and silica surfaces as a monolayer when their loading is kept under the monolayer-dispersion capacity. However, at higher saccharide content, glucose and sucrose are dispersed differently. Just like other monolayer-dispersion systems, sucrose begins to form in the crystalline phase when its loading exceeds the monolayer-dispersion capacity. In contrast, glucose aggregates in an amorphous state in the pores of the supports until these pores are filled, and only then forms crystalline glucose. (C) 2008 Elsevier B. V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000257950100047&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 10; ARTICLE; 20; 6560-6567; 254
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151763]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Y.,Lin, L.,Zhu, B. S.,et al. Different dispersion behavior of glucose and sucrose on alumina and silica surfaces[J]. 应用表面科学,2008.
APA	Wang, Y.,Lin, L.,Zhu, B. S.,Zhu, Y. X.,&Xie, Y. C..(2008).Different dispersion behavior of glucose and sucrose on alumina and silica surfaces.应用表面科学.
MLA	Wang, Y.,et al."Different dispersion behavior of glucose and sucrose on alumina and silica surfaces".应用表面科学 (2008).