武汉工程大学学报2024，Vol.46Issue(2)：125-129,136,6.DOI:10.19843/j.cnki.CN42-1779/TQ.202009006
气溶胶法制备纳米Ni@SiO2及其对肉桂醛催化加氢的研究
Aerosol synthesis of nano Ni@SiO2 and its catalytic hydrogenation of cinnamaldehyde
摘要
Abstract
A Ni@SiO2 nanoparticle catalyst with a"pitaya"structure was prepared by aerosol spray pyrolysis.The carrier silicon spheres and metal nanoparticles have good monodispersity.The samples were characterized by X-ray diffraction,transmission electron microscopy,nitrogen physical adsorption and other methods.The obtained Ni@SiO2 catalyst particles have an average specific surface area of about 340 m2/g,an average pore size of about 3.4 nm,and an average pore volume of about 0.16 cm3/g.The particle size of the carrier silica spheres is distributed between 50-500 nm,and that of Ni particles is between 2-6 nm.Ni@SiO2 was used as the catalyst for catalytic hydrogenation of cinnamaldehyde,and gas chromatography was used as the detection method.Under the conditions where the solvent was isopropanol,temperature was 160℃,hydrogen pressure was 2 MPa,and reaction time was 2 hours,the cinnamaldehyde conversion rate obtained was 98.5%,and the phenylpropionaldehyde yield was 76.8%.关键词
Ni@SiO2/气溶胶法/肉桂醛/加氢Key words
Ni@SiO2/aerosol method/cinnamaldehyde/hydrogenation分类
化学化工引用本文复制引用
聂震,季凯,姜兴茂..气溶胶法制备纳米Ni@SiO2及其对肉桂醛催化加氢的研究[J].武汉工程大学学报,2024,46(2):125-129,136,6.基金项目
国家自然科学基金(21878237) （21878237）
武汉市应用基础前沿项目(2108010401011291) （2108010401011291）
