详细信息
直接合成过氧化氢Pd/TiO_2催化剂的制备
Preparation of Pd/TiO_2 catalyst for direct synthesis of hydrogen peroxide
文献类型:期刊文献
中文题名:直接合成过氧化氢Pd/TiO_2催化剂的制备
英文题名:Preparation of Pd/TiO_2 catalyst for direct synthesis of hydrogen peroxide
作者:徐冉冉[1];苏勇[1];李斯迈[1];朱连利[1];赫崇衡[1]
机构:[1]华东理工大学化工学院,上海200237
年份:2009
卷号:17
期号:10
起止页码:22
中文期刊名:工业催化
外文期刊名:Industrial Catalysis
收录:CSTPCD
基金:国家自然科学基金资助项目(20576033);上海市自然科学基金资助项目(05ZR14036)
语种:中文
中文关键词:催化化学;过氧化氢;直接合成法;Pd/TiO_2催化剂制备
外文关键词:catalytic chemistry; hydrogen peroxide; direct synthesis; Pd/TiO2 catalyst preparation
摘要:常温和常压下,氢氧直接合成过氧化氢过程中,采用浸渍沉淀法制备Pd/TiO_2催化剂。考察了pH、搅拌时间t_1、静置时间t_2及焙烧温度等制备条件对催化剂活性的影响。正交实验结果表明,影响催化剂活性的顺序为:pH>搅拌时间>焙烧温度>静置时间。在pH=8、t_1=0、t_2=0和(250~300)℃焙烧3 h的条件下,制备的催化剂活性最好。
Hydrogen peroxide was synthesized from H2 and 02 at room temperature and atmospheric pres- sure over Pd/TiO2 catalyst prepared by impregnation-precipitation. The effects of pH value, stirring time t1, static time t2 and calcination temperature on activity of the catalyst were investigated via orthogonal experiment with influential order as follows : pH value 〉 stirring time t1 〉 calcination temperature 〉 static time t2. Catalyst with the optimum activity was prepared under the condition of pH = 8, t1 = 0, t2 = 0 and calcination at (250 -300) ℃ for 3 hours.
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