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  4. 选择氧化物载体调变乙醇重整和1,3-丁二烯加氢反应双金属催化剂

催化学报 , 2013, 34(11): 2009-2017. doi: 10.1016/S1872-2067(12)60715-3

选择氧化物载体调变乙醇重整和1,3-丁二烯加氢反应双金属催化剂

王铁峰 1, , 2, , 陈经广 3,

1.清华大学化工系,绿色反应工程与工艺北京市重点实验室,北京100084,中国

2.特拉华大学化学与生物分子工程系,催化科技中心,纽瓦克DE 19716,美国

3.哥伦比亚大学化工系,纽约NY 10027,美国

基金项目:   美国能源部基金(DE-SC0001004)   新世纪优秀人才支持计划(NCET-12-0297).This work was supported as part of the Catalysis Center for Energy Innovation,an Energy Frontier Research Center funded by the U.S.Department of Energy,Office of Basic Energy Sciences under Award Number DE-SC0001004,and Program for New Century Excellent Talents i(NCET-12-0297)  

关键词： 铂镍双金属催化剂 , 载体影响 , 乙醇重整 , 1,3-丁二烯加氢 , 扩展X射线吸收精细结构光谱

Selection of oxide supports to anchor desirable bimetallic structures for ethanol reforming and 1,3-butadiene hydrogenation

Tiefeng Wang 1, , William Lonergan 2, , Jingguang G.Chen 3,

1.清华大学化工系,绿色反应工程与工艺北京市重点实验室,北京100084,中国

2.特拉华大学化学与生物分子工程系,催化科技中心,纽瓦克DE 19716,美国

3.哥伦比亚大学化工系,纽约NY 10027,美国

Keywords： Platium-nickel bimetallic catalyst , Support effect , Ethanol reforming , 1,3-Butadiene hydrogenation , Extended X-ray absorption fine structure

研究了不同载体负载的Pt-Ni双金属和单金属催化剂上乙醇重整和1,3-丁二烯加氢反应性能,以考察氧化物载体对双金属结构和催化活性的影响.所用的氧化物载体包括γ-Al2O3,SiO2,TiO2,CeO2以及高比表面积(HSA)和低比表面积(LSA)ZrO2.采用共浸渍法制备催化剂,用CO化学吸附、透射电镜和扩展X射线吸收精细结构光谱进行催化剂表征,采用傅里叶变换红外间歇反应器进行化学反应评价.对于乙醇重整反应,Pt-Ni双金属催化剂优于单金属催化剂,Pt-Ni双金属催化剂活性顺序为TiO2＞SiO2＞γ-Al2O3≈LSA-ZrO2＞ CeO2＞ HSA-ZrO2.对于1,3-丁二烯加氢反应,在SiO2,TiO2和HSA-ZrO2载体上双金属催化剂优于单金属催化剂,Pt-Ni双金属催化剂活性顺序为SiO2＞ CeO2＞ γ-Al2O3＞ LSA-ZrO2＞ HSA-ZrO2≈ TiO2.

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