磷酸锆催化剂用于生物质转化（英文）
发布时间：2019-01-02 13:12
【摘要】：随着化石燃料的减少和能源危机的加重,开发利用可再生的新能源迫在眉睫.生物质作为一种重要的可再生资源,是现代化学工业中的能源和有机碳的重要潜在替代物,将其转化为高附加值化学品具有巨大的开发潜力和实际应用价值.因此,对于生物质资源的高效转化及综合利用越来越受到人们的广泛关注,而催化化学转化是当前实现生物质升值利用的重要途径之一.近年来,磷酸锆逐渐发展成为一种新型的过渡金属磷酸盐多功能材料,在离子交换,吸附,质子传导,光化学,材料化学,催化等领域具有广泛的应用.根据我们和其他课题组的研究基础,本文简要总结了无定形、介孔和结晶型磷酸锆(α、γ、τ)特别是α-磷酸锆材料的制备方法,结构和催化性能.在其结构中,不同的磷氧基团和水分子,锆氧八面体和磷氧四面体通过氧桥相互连接在一起.在特定的制备条件下,可以得到无定形磷酸锆、层状结构的α/γ-磷酸锆或者三维结构的τ-磷酸锆.磷酸锆材料具有极高的热稳定性,优异的耐水能力,且在极性介质(包括水相)中仍然能够显示出中强酸性,不仅具有布朗斯特酸性和路易斯酸性,而且通过控制磷和锆的比例可以调节两种酸的浓度.本文重点介绍了磷酸锆催化剂在生物质平台分子转化(如催化脱水,加氢/氢解,氧化和酯化等)反应中的最新研究进展,特别指出,磷酸锆表现出的高热稳定性,耐水性和中强酸性使其成为具有高活性、高稳定性的多相催化剂.已有研究表明,磷酸锆既可以直接作为固体酸催化剂,也可以将其它金属及其氧化物等活性组分负载于酸性磷酸锆上,可构建包含酸中心、金属中心的多功能催化剂,实现酸催化、加氢、氧化等多步反应,从而应用于由生物质平台分子制取燃料或者精细化学品催化转化过程.总之,磷酸锆用于生物质转化已经取得了一些重要的进展,也是目前该领域的研究热点之一.虽然已有很多磷酸锆催化剂的研究工作,但是在该领域仍然需要更加深入和广泛的研究.在了解催化反应机理的基础上,更加精确设计、改良催化剂的结构,高效应用在生物质转化以及其他催化反应中.
[Abstract]:With the decrease of fossil fuels and the aggravation of energy crisis, the development and utilization of renewable new energy is imminent. Biomass, as an important renewable resource, is an important potential substitute for energy and organic carbon in modern chemical industry. It has great development potential and practical application value to convert biomass into high value-added chemicals. Therefore, more and more attention has been paid to the efficient conversion and comprehensive utilization of biomass resources, and catalytic chemical conversion is one of the important ways to realize biomass utilization appreciation. In recent years, zirconium phosphate has gradually developed into a new transition metal phosphate multifunctional material, which has been widely used in the fields of ion exchange, adsorption, proton conduction, photochemistry, material chemistry, catalysis and so on. According to the research basis of us and other research groups, the preparation methods, structures and catalytic properties of amorphous, mesoporous and crystallized zirconium phosphate (伪, 纬, 蟿), especially 伪 -zirconium phosphate materials, are briefly summarized in this paper. In its structure, different phosphoric groups and water molecules, zirconium oxide octahedron and phosphoric oxide tetrahedron are connected by oxygen bridge. Under specific preparation conditions, amorphous zirconium phosphate, layered 伪 / 纬 -zirconium phosphate or three-dimensional 蟿 -zirconium phosphate can be obtained. Zirconium phosphate has excellent thermal stability, excellent water resistance, and can still show moderate and strong acidity in polar media (including aqueous phase), not only Brownst acid and Lewis acid, The concentration of the two acids can be adjusted by controlling the ratio of phosphorus and zirconium. In this paper, the latest research progress of zirconium phosphate catalyst in biomass platform molecular conversion (such as catalytic dehydration, hydrogenation / hydrogenolysis, oxidation and esterification) is reviewed, especially the high thermal stability of zirconium phosphate. Water resistance and moderate acidity make it a highly active and stable heterogeneous catalyst. It has been shown that zirconium phosphate can not only be used as solid acid catalyst, but also can be loaded on acid zirconium phosphate with other active components, such as other metals and their oxides. Multi-step reactions such as acid catalysis, hydrogenation and oxidation are realized, which can be applied to the catalytic conversion process from biomass platform molecules to fuel or fine chemicals. In a word, zirconium phosphate has made some important progress in biomass conversion and is one of the research hotspots in this field. Although there have been many researches on zirconium phosphate catalysts, there is still a need for more in-depth and extensive research in this field. On the basis of understanding the mechanism of catalytic reaction, the structure of catalyst is designed more accurately, and the catalyst structure is improved, which can be used in biomass conversion and other catalytic reactions.
【作者单位】： 华东理工大学化学与分子工程学院工业催化研究所结构可控先进功能材料及其制备教育部重点实验室;
【基金】：support from the National Natural Science Foundation of China (21373082, 21773061) the Innovation Program of Shanghai Municipal Education Commission (15ZZ031) the Fundamental Research Funds for the Central Universities~~
【分类号】：O643.36;TK6
本文编号：2398532
[Abstract]:With the decrease of fossil fuels and the aggravation of energy crisis, the development and utilization of renewable new energy is imminent. Biomass, as an important renewable resource, is an important potential substitute for energy and organic carbon in modern chemical industry. It has great development potential and practical application value to convert biomass into high value-added chemicals. Therefore, more and more attention has been paid to the efficient conversion and comprehensive utilization of biomass resources, and catalytic chemical conversion is one of the important ways to realize biomass utilization appreciation. In recent years, zirconium phosphate has gradually developed into a new transition metal phosphate multifunctional material, which has been widely used in the fields of ion exchange, adsorption, proton conduction, photochemistry, material chemistry, catalysis and so on. According to the research basis of us and other research groups, the preparation methods, structures and catalytic properties of amorphous, mesoporous and crystallized zirconium phosphate (伪, 纬, 蟿), especially 伪 -zirconium phosphate materials, are briefly summarized in this paper. In its structure, different phosphoric groups and water molecules, zirconium oxide octahedron and phosphoric oxide tetrahedron are connected by oxygen bridge. Under specific preparation conditions, amorphous zirconium phosphate, layered 伪 / 纬 -zirconium phosphate or three-dimensional 蟿 -zirconium phosphate can be obtained. Zirconium phosphate has excellent thermal stability, excellent water resistance, and can still show moderate and strong acidity in polar media (including aqueous phase), not only Brownst acid and Lewis acid, The concentration of the two acids can be adjusted by controlling the ratio of phosphorus and zirconium. In this paper, the latest research progress of zirconium phosphate catalyst in biomass platform molecular conversion (such as catalytic dehydration, hydrogenation / hydrogenolysis, oxidation and esterification) is reviewed, especially the high thermal stability of zirconium phosphate. Water resistance and moderate acidity make it a highly active and stable heterogeneous catalyst. It has been shown that zirconium phosphate can not only be used as solid acid catalyst, but also can be loaded on acid zirconium phosphate with other active components, such as other metals and their oxides. Multi-step reactions such as acid catalysis, hydrogenation and oxidation are realized, which can be applied to the catalytic conversion process from biomass platform molecules to fuel or fine chemicals. In a word, zirconium phosphate has made some important progress in biomass conversion and is one of the research hotspots in this field. Although there have been many researches on zirconium phosphate catalysts, there is still a need for more in-depth and extensive research in this field. On the basis of understanding the mechanism of catalytic reaction, the structure of catalyst is designed more accurately, and the catalyst structure is improved, which can be used in biomass conversion and other catalytic reactions.
【作者单位】： 华东理工大学化学与分子工程学院工业催化研究所结构可控先进功能材料及其制备教育部重点实验室;
【基金】：support from the National Natural Science Foundation of China (21373082, 21773061) the Innovation Program of Shanghai Municipal Education Commission (15ZZ031) the Fundamental Research Funds for the Central Universities~~
【分类号】：O643.36;TK6
【相似文献】
相关博士学位论文 前2条
1 刘冉;负载型金属催化剂的制备及其催化肼电氧化性能的研究[D];哈尔滨工程大学;2016年
2 张栋铭;碳材料修饰基体负载Ni、Co、Au催化剂的制备及其电化学性能研究[D];哈尔滨工程大学;2016年
，本文编号：2398532
本文链接：https://www.wllwen.com/kejilunwen/huaxue/2398532.html
教材专著
