Surface properties and catalytic activities of amorphous niobium phosphate and a comparison with those of H3PO4-treated niobium oxide
Surface properties and catalytic activities of amorphous niobium phosphate and a comparison with those of H3PO4-treated niobium oxide
复制标题
非晶态磷酸铌的表面性质和催化活性及其与磷酸处理氧化铌的比较
DOI：
10.1016/0920-5861(93)80074-b
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发表时间：
1993
期刊：
影响因子：
5.3
通讯作者：
Naoto Wada
中科院分区：
文献类型：
--
作者：
S. Okazaki;Naoto Wada
在铌酸钾水溶液中加入磷酸，制得非晶态磷酸铌。无定形磷酸盐的表面性质高度依赖于沉淀物的老化程度和K+污染物的粗大程度。以及经磷酸处理的Nb2O5)，无定形磷酸盐作为酸催化的一些反应的催化剂，如MTBE合成、乙酸酯化和苯的烷基化反应。
Amorphous niobium phosphate was prepared by addition of phosphoric acid to an aqueous solution of potassium niobate. The surface property of the amorphous phosphate was highly dependent on degrees of aging of the precipitate and ranoval of K+contaminant. As well as the phosphoric acid-treated Nb2O5) the amorphous phosphate was active as a catalyst for some acid-catalyzed reactions such as MTBE synthesis, esterifications using acetic acid, and alkylations of benzene.