沸石强度的布朗斯台德酸位在无定形硅铝酸盐中。
Brønsted acid sites of zeolitic strength in amorphous silica-alumina.
机构信息
Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
出版信息
Chem Commun (Camb). 2010 May 28;46(20):3466-8. doi: 10.1039/c000019a. Epub 2010 Apr 21.
DOI:10.1039/c000019a
PMID:20407684
Abstract
The most acidic OH groups in silica-aluminas (zeolites, clays, amorphous silica-aluminas) can be made to react selectively with C(6)D(6) to give acidic OD groups; quantification by IR spectroscopy shows that differences in the overall Brønsted acidity of aluminosilicates are dominated by differences in the density of sites of similar acid strength.
摘要
硅铝酸盐（沸石、粘土、无定形硅铝酸盐）中最酸性的 OH 基团可以选择性地与 C(6)D(6)反应生成酸性 OD 基团；通过红外光谱定量分析表明，铝硅酸盐的整体 Brønsted 酸性差异主要由相似酸性强度的位点密度差异决定。
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