| 介孔Cs3PMo12O40的制备、表征及其醛糖差向异构化反应的催化性能 |
| Preparation and Characterization of Mesoporous Cs3PMo12O40 Employed for Catalytic Epimerization Reaction of Aldoses |
| 作者 | 单位 | E-mail | | 王美银 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | | | 任远航 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | | | 贾淳博 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | | | 李响 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | | | 叶林 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | | | 岳斌 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | yuebin@fudan.edu.cn | | 贺鹤勇 | 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海 200438 | heyonghe@fudan.edu.cn |
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| 摘要: 以磷钼酸和氯化铯为原料、三嵌段共聚物F127为模板剂制备Keggin型介孔Cs3PMo12O40（简称m-Cs3PMo），通过X射线粉末衍射（XRD）、FT-IR、场发射扫描电子显微镜（FESEM）、透射电子显微镜（TEM）、N2吸附-脱附测试和小角X射线散射（SAXS）对催化剂的组成、结构、形貌进行了表征。结果表明，m-Cs3PMo属于立方相晶系，具有2.5和6.0 nm的蠕虫状介孔。以m-Cs3PMo为催化剂考察其水相中D-葡萄糖、D-木糖和L-阿拉伯糖差向异构化反应的催化性能，并研究了反应温度、时间和催化剂用量对D-葡萄糖差向异构化反应的影响以及催化剂的循环使用性能，在循环使用过程中m-Cs3PMo表现出良好的稳定性。 |
| 关键词: 介孔材料 多金属氧酸盐 多相催化 醛糖差向异构化 |
| 基金项目: 国家自然科学基金（No.22088101）资助 |
| Abstract: Keggin-type mesoporous Cs3PMo12O40 (m-Cs3PMo) has been prepared by using H3PMo12O40 and CsCl as starting materials and amphiphilic triblock copolymer F127 as a template. The composition, structure, and morphology were characterized by powder X-ray diffraction (XRD), FT-IR, field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM), N2 adsorption-desorption test, and small-angle X-ray scattering (SAXS). The results show that m-Cs3 PMo belongs to the cubic lattice system and owns 2.5 and 6.0 nm wormlike mesoporous pores. The catalytic activity of m-Cs3PMo in aqueous epimerization of D-glucose, D-xylose, and L-arabinose was investigated. The effects of temperature, time, and catalyst amount on the D-glucose epimerization reaction and the recycling performance of the catalyst were also studied. During the recycling process, the catalyst activity and product selectivity did not decrease significantly, which showed good stability of m-Cs3PMo. |
| Keywords: mesoporous materials polyoxometalates heterogeneous catalysis aldose epimerization |
| 投稿时间：2021-08-24 修订日期：2021-12-20 |
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| 王美银,任远航,贾淳博,李响,叶林,岳斌,贺鹤勇.介孔Cs3PMo12O40的制备、表征及其醛糖差向异构化反应的催化性能[J].无机化学学报,2022,38(2):304-312. |
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