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Study of the Properties of the Catalysts Based on Ni(Mg)Al-Layered Hydroxides for the Reaction of Furfural Hydrogenation
Materials Chemistry and Physics ( IF 4.3 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.matchemphys.2020.124091
Liudmila N. Stepanova , Olga B. Belskaya , Natalia N. Leont’eva , Elena O. Kobzar , Alexey N. Salanov , Tatiana I. Gulyaeva , Mikhail V. Trenikhin , Vladimir A. Likholobov

Abstract Ni(Mg)Al-layered double hydroxides (LDH) were synthesized by coprecipitation. Structural properties of LDH and mixed oxides Ni(Mg)AlOx, obtained by LDH calcination, were studied by XRD and M. Textural properties of Ni(Mg)AlOx were studied by the nitrogen adsorption-desorption method. It was found that the formation of the single-phase LDH was occurred for any nickel content in the samples. The mixed oxides have a high specific surface area, the value of which decreases with increasing nickel content in the samples. Ni(Mg)AlOx are characterized by high activity in furfural hydrogenation. Selectivity of the formation of different reaction products depends on the nickel content in the catalysts. The full furfural conversion with the furfuryl alcohol selectivity no more than 65% was observed for the catalyst with a low nickel content. At the same time an increase in selectivity for furfuryl alcohol up to 84% occurs for the NiAl-catalyst with a furfural conversion not exceeding 43%.

中文翻译:

糠醛加氢反应中Ni(Mg)Al层状氢氧化物催化剂的性能研究

摘要 采用共沉淀法合成了Ni(Mg)Al层状双氢氧化物(LDH)。通过XRD和M研究LDH和混合氧化物Ni(Mg)AlOx的结构特性,通过LDH煅烧获得。Ni(Mg)AlOx的结构特性通过氮吸附-解吸法进行研究。发现对于样品中的任何镍含量,都会发生单相 LDH 的形成。混合氧化物具有高比表面积,其值随着样品中镍含量的增加而降低。Ni(Mg)AlOx 的特点是在糠醛氢化中具有高活性。形成不同反应产物的选择性取决于催化剂中的镍含量。对于具有低镍含量的催化剂,观察到糠醇选择性不超过65%的完全糠醛转化。
更新日期:2020-11-01
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