CuO/SBA-15催化剂上巴豆醛选择性加氢

催化学报 , 2008, 29(5): 482-488.

CuO/SBA-15催化剂上巴豆醛选择性加氢

王月娟 ¹ , 王雪俐 ² , 谢冠群 ³ , 鲁继青 ⁴ , 金炜阳 ⁵ , 刘西敬 ⁶ , 罗孟飞 ^7,

1.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

2.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

3.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

4.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

5.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

6.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

7.浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华,321004

基金项目: 浙江省自然科学基金(202131)

关键词：氧化铜 , SBA-15分子筛 , 巴豆醛 , 加氢 , γ-氨丙基三甲氧基硅烷

Crotonaldehyde Hydrogenation over CuO/SBA-15 Catalyst

通过γ-氨丙基三甲氧基硅烷(APTS)偶联与Cu2+离子络合两步法将CuO负载到介孔分子筛SBA-15上,制得CuO/SBA-15催化剂,考察了催化剂的巴豆醛选择性加氢反应性能. 通过X射线粉末衍射、氮气吸脱附和程序升温还原(TPR)技术对催化剂进行了表征. 结果表明, SBA-15分子筛负载CuO后保持原有的介孔结构,但是孔容和比面表积随着CuO负载量的增大而下降. TPR结果表明CuO/SBA-15系列催化剂有三种CuO物种: 高分散CuO、晶相CuO和进入SBA-15分子筛骨架的Cu2+. 高分散CuO物种对巴豆醛加氢反应的催化活性最高,晶相CuO物种次之,而进入SBA-15分子筛骨架的Cu2+物种几乎没有活性.

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