化工学报2013，Vol.64Issue(2)：547-554,8.DOI:10.3969/j.issn.0438-1157.2013.02.019
SBA-15锚定的钌杂多酸催化剂的合成及其催化正十六烷氧化
Ru-polyoxometalates immobilized on SBA-15 as heterogeneous catalysts for n-hexadecane oxidation
摘要
Abstract
The selective oxidation of alkanes as a green process remains a challenging task because of inactive C-H oxidation. Heterogeneous Ru-polyoxometalates catalysts were synthesized by using organo-ruthenium supported heteropolytungstates, [Sb2 W20 O70 ( RuC6H6 )2 ]10-, [Bi2 W20 O70 ( RuC6H6 )2 ]10-, [Sb2W20O70 (RuC10 H14 )2]10-, and [Bi2W20 O70 (RuC10 H14 )2]10 anchored on 3-aminopropyltriethoxysilane (apts)-modified mesoporous SBA-15. The catalysts were characterized by X-ray diffraction (XRD), N2-adsorption measurements and Fourier transform infrared reflectance (FT-IR) spectroscopy. The results of these analyses indicated that these catalysts had high surface area, uniform hexagonal channels which were similar to those of SBA-15, and organo-ruthenium supported heteropolytungstates were highly dispersed in the pores of the modified silica. The heterogeneous Ru-polyoxometalates catalysts were used as catalysts for the solvent-free aerobic oxidation of w-hexadecane to alcohols and ketones by using air as the oxidant under ambient conditions. They exhibited exceptionally high catalytic performance through a classical free-radical autoxidation mechanism. Therefore, the catalysts demonstrated the prospect of this type of heterogeneous catalyst for practical applications.关键词
烷烃氧化/锚定/SBA-15/多相催化剂/钌杂多酸Key words
n-alkane oxidation/immobilization/SBA-15/heterogeneous catalysis/Ru-polyoxometalates分类
化学化工引用本文复制引用
陈立芳,曹文荣,苗改,王翠花,方云进,漆志文..SBA-15锚定的钌杂多酸催化剂的合成及其催化正十六烷氧化[J].化工学报,2013,64(2):547-554,8.基金项目
国家自然科学基金项目(21006029,21076074) （21006029,21076074）
上海市自然科学基金项目(10ZR1407200). （10ZR1407200）
