ICCAS OpenIR
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.
2008-08-15
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume254Issue:20Pages:6560-6567
AbstractPhenomena 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.
KeywordMonolayer-dispersion Glucose Sucrose Alumina Silica Carbon-covered Alumina
DOI10.1016/j.apsusc.2008.04.022
Indexed BySCI
Language英语
WOS IDWOS:000257950100047
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64082
Collection中国科学院化学研究所
Corresponding AuthorZhu, Y. X.
AffiliationPeking Univ, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
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]. APPLIED SURFACE SCIENCE,2008,254(20):6560-6567.
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.APPLIED SURFACE SCIENCE,254(20),6560-6567.
MLA Wang, Y.,et al."Different dispersion behavior of glucose and sucrose on alumina and silica surfaces".APPLIED SURFACE SCIENCE 254.20(2008):6560-6567.
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