GaxCs2.5-3xH0.5PW12O40的固相法制备及其催化正丁烷异构化反应的活性

催化学报 , 2011, 32(4): 521-524. doi: 10.1016/S1872-2067(10)60214-8

GaxCs2.5-3xH0.5PW12O40的固相法制备及其催化正丁烷异构化反应的活性

张丽 ^1, , 岳斌 ^2, , 冯素姣 ^3, , 钱林平 ^4, , 贺鹤勇 ^5,

1.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,200433

2.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,200433

3.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,200433

4.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,200433

5.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,200433

基金项目: 国家自然科学基金(20633030) 国家高技术研究发展计划(863计划;2009AA033701) 国家重点基础研究发展计划(973计划;2009CB623506) 上海市重点学科建设项目(B108) 上海市优秀学科带头人计划(1OXD1400300)

关键词：镓 , 钨磷酸铯盐 , 固相合成 , 正丁烷异构化 , 酸性

Solid Synthesis of GaxCs2.5-3xH0.5PW12O40 Salts and Their Catalytic Activity in the Isomerization of n-Butane

ZHANG Li ^1, , YUE Bin ^2, , FENG Sujiao ^3, , QIAN Linping ^4, , HE Heyong ^5,

1.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,200433

2.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,200433

3.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,200433

4.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,200433

5.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,200433

Keywords： gallium , cesium salt of tungstophosphoric acid , solid synthesis , butane isomerization , acidity

利用室温固相法制备了一系列掺镓的钨磷酸铯盐催化剂GaxCs2.5-3xH0.5PW12O40(x=0.05,0.1,0.15).与钨磷酸铯盐相比,掺镓的钨磷酸铯盐催化剂的结构未产生变化,但其酸强度提高,在正丁烷异构化反应中催化活性增强,其中以Ga0.1Cs2.2H0.5PW12O40和Ga0.15Cs2.05H0.5PW12O40最为显著.

GaxCs2.5-3xH0.5PWl2O40(x=0.05, 0.10, and 0.15) salts were prepared using a solid synthesis method and they showed higher catalytic activity than that of Cs2.5H0.5PW12O40 for n-butane isomerization, which possibly comes from their enhanced acid strength as a result of Ga doping.

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