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层柱催化剂[Zn2Al(OH)2][SiW11O39Co(H2
New Route for Preparation of Layer-pillared Catalyst[Zn2Al(OH)2][SiW11O39Co(H2O)]0.83·4H2O and Its Catalytic Activities for the Oxidation of Benzaldehyde Using H2O2 as Oxidant
【摘要】 层柱催化剂[Zn2Al(OH)2][SiW11O39Co(H2O)]0.834H2O的合成新途径及其对苯甲醛H2O2氧化的催化活性胡长文,贺庆林,张云峰,张继余,王恩波(东北师范大学化学系,长春130024)关键词层柱催化剂,苯?..
【Abstract】 The Keggin structure of tungstosilicatic heteropolyanion substituted with Co2+,SiW11O39Co(H2O)6-,have been intercalated into the interlayer of Zn2Al hydrotalcite by means of organic-anionpillared precusor.Zn2AISiW11Co was characterized by XRD,IR and elementary analysis.The results show that Zn2AlSiW11Co is a layered complex with gallery height of 0.95 nm and the anions enterring the layer retain the Keggin structure.It was shown that this kind of pillared layered catalyst had high activity and selectivity for the oxidation of benzaldehyde to benzoic acid using H2O2as oxidant in liquid-solid phase system.
【Key words】 Layered-pillared catalyst; Benzaldehyde; H2O2 oxidation; Liquid-solid phase reaction;
- 【文献出处】 分子催化 ,JOURNAL OF MOLECULAR CATALYSIS (CHINA) , 编辑部邮箱 ,1996年01期
- 【分类号】O611
- 【被引频次】5
- 【下载频次】67