介孔金属氧化物的催化作用及应用研究

Study on the Catalysis and Application of Mesoporous Metal Oxides

为了提高反应速率,人们通常会加入催化剂,降低反应的活化能。其中,介孔金属氧化物因具有比表面积大、腐蚀性小、传质速率快和易分离等优点,可以作为一种理想的催化剂。本文综述了近年来介孔金属氧化物(如α-Fe_(2)O_(3)、TiO_(2)、InVO_(4)和CeO_(2))制备的研究进展,重点从软模板法和硬模板法角度探讨了各种介孔金属氧化物的制备机理;介绍了介孔金属氧化物在催化领域中的实际应用;简要分析了介孔金属氧化物制备过程中存在的问题,并展望其未来发展趋势,为新型介孔金属氧化物的合成提供新思路。

In order to increase the reaction rate,people usually add a catalyst to reduce the activation energy of the reaction.Among them,mesoporous metal oxides can be used as an ideal catalyst because of their large specific surface area,low corrosivity,fast mass transfer rate and easy separation.In this paper,the research progress was reviewed in the preparation of mesoporous metal oxides in recent years,focusing on the preparation mechanism of various mesoporous metal oxides(such as α-Fe_(2)O_(3),TiO_(2),InVO_(4) and CeO_(2))from the perspective of soft template method and hard template method;the practical application of mesoporous metal oxides in the field of catalysis was introduced;the problems in the preparation of mesoporous metal oxides were briefly analyzed,and the future development trend was prospected to provide new ideas for the synthesis of new mesoporous metal oxides.