西南师范大学学报(自然科学版)
西南師範大學學報(自然科學版)
서남사범대학학보(자연과학판)
JOURNAL OF SOUTHWEST CHINA NORMAL UNIVERSITY
2014年
7期
22-25
,共4页
尹彦冰%金洺函%宋瑶
尹彥冰%金洺函%宋瑤
윤언빙%금명함%송요
Keggin型硅钼钒杂多酸%合成%表征
Keggin型硅鉬釩雜多痠%閤成%錶徵
Keggin형규목범잡다산%합성%표정
Keggin-type Si-Mo-V heteropolyacid%synthesize%characterization
采用改良的分步加酸、乙醚丙酮萃取的方法合成了5种Keggin型硅钼钒杂多酸,分别用红外光谱(IR)检测到700~1100 cm -1范围内的4个特征吸收峰,X射线衍射(XRD )表征了硅钼钒杂多酸的二级结构,通过热重分析(T G )确定了杂多酸中结晶水的数目。
採用改良的分步加痠、乙醚丙酮萃取的方法閤成瞭5種Keggin型硅鉬釩雜多痠,分彆用紅外光譜(IR)檢測到700~1100 cm -1範圍內的4箇特徵吸收峰,X射線衍射(XRD )錶徵瞭硅鉬釩雜多痠的二級結構,通過熱重分析(T G )確定瞭雜多痠中結晶水的數目。
채용개량적분보가산、을미병동췌취적방법합성료5충Keggin형규목범잡다산,분별용홍외광보(IR)검측도700~1100 cm -1범위내적4개특정흡수봉,X사선연사(XRD )표정료규목범잡다산적이급결구,통과열중분석(T G )학정료잡다산중결정수적수목。
In this paper ,five kinds of Keggin-type Si-Mo-V heteropolyacids have been synthesized in the modified method that gradually adding acid ,extracted by acetone-ether .Four characteristic peak of Keg-gin-type in 700-1 100 cm -1 have been observed by infrared ray .These condary structures of heteropolyac-ids have been characterized by XRD .The number of crystalliferous water in the products are determined by TG .