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The Titanium–Aluminum Binary Oxide Immobilized over Long-Axis SBA-15 as Efficient and Benign Catalyst for Conversion of Sucrose into 5-Hydroxymethylfurfural
Catalysis Surveys from Asia ( IF 3 ) Pub Date : 2019-02-19 , DOI: 10.1007/s10563-019-09267-3
Benhua Huang , Yu Cheng , Jinyi Ma , Zhen Chen , Kun Yu , Yang Sun

The 5-hydroxymethylfurfural (HMF) is a versatile platform molecule that could be transformed into many fine chemicals. This compound is usually obtained by dehydration of fructose or glucose, but use of sucrose as substrate often demands high temperature and shows poor yield, deserving optimization. In this work, a series of titanium–aluminum binary oxides are prepared over long-axis SBA-15 through co-precipitation of metal salts, and metal ratio of solid product could be controlled by changing metal content of preparative solution. Catalysis reveals solvent, temperature, UV irradiation, and surface composition of catalyst show important influences on output, while catalyst having equimolar titanium and aluminum shows the most promising activity. Additionally, a catalytic mechanism is proposed based on catalyst characterization, catalytic results and calculations. This work would contribute to the synthesis of new oxide catalyst, as well as to utilization of biomass.



中文翻译:

长轴SBA-15上固定的钛铝双氧化物是将蔗糖转化为5-羟甲基糠醛的高效良性催化剂

5-羟甲基糠醛(HMF)是一种通用的平台分子,可以转化为许多精细化学品。该化合物通常通过果糖或葡萄糖脱水获得,但使用蔗糖作为底物通常需要高温且收率较差,值得优化。在这项工作中,通过共沉淀金属盐在长轴SBA-15上制备了一系列钛铝双氧化物,并且可以通过改变制备溶液的金属含量来控制固体产物的金属比。催化表明溶剂,温度,紫外线辐射和催化剂的表面组成对产量有重要影响,而等摩尔钛和铝的催化剂则显示出最有希望的活性。此外,基于催化剂的表征,提出了一种催化机理,催化结果和计算。这项工作将有助于合成新的氧化物催化剂,并有助于生物质的利用。

更新日期:2019-02-19
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