Sol-gel synthesis, texture and catalytic activity of titania-silica sorbents

被引：2

作者：

Kouznetsova, T. F. ^{[1
]}

Sidorenko, A. Yu ^{[3
]}

Ivanets, A. I. ^{[1
]}

Ignat, M. ^{[2
]}

Sauka, Yu D. ^{[1
]}

Samoila, P. ^{[2
]}

机构：

[1] Inst Gen & Inorgan Chem, State Sci Inst, 9 Surganov St, Minsk 220072, BELARUS

[2] Alexandru Ioan Cuza Univ, 11 Carol I Bvd, Iasi 700506, Romania

[3] Inst Chem New Mat, State Sci Inst, 36 Fr Skaryna St, Minsk 220141, BELARUS

来源：

SN APPLIED SCIENCES | 2019年 / 1卷 / 12期

关键词：

Sol-gel; Titania-silica; MCM-41; Mesopore; Gas adsorption; Isomerization of alpha-pinene epoxide; ALPHA-PINENE OXIDE; ISOMERIZATION; ACID; FINE; ADSORPTION; CHEMICALS; EPOXIDE;

D O I：

10.1007/s42452-019-1781-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Sol-gel synthesis of mesoporous titania-silicas with the structure related to Type MCM-41 is carried out. The method of nitrogen adsorption has established influence of fluoride-anion on the adsorptive and catalytic properties of titania-silica. The pore structure in titania-silica is in the form of an hexagonal array of uniform tubular channels. Asymptotic increase in a specific surface area of titania-silica catalyst with growth of F/Si ratio is shown. Both silicas and titano-silicas showed catalytic activity in the reaction of isomerization of a-pinene epoxide. The largest activity (100% conversion) and selectivity for campholenic aldehyde (57%) was shown by titanosilicate synthesized at Ti/Si = 25/75 and F/Si = 0.4.

引用

页数：11

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