The series copper cerium supported titanium aluminum composite oxide (Ce-Cu/Ti-Al-Ox) catalysts were prepared by an extrusion method.The performance of the Ce-Cu/Ti-Al-Ox during catalytic oxidation of carbon monoxide (CO) was investigated and several tests were carried out to characterize the catalysts.Results showed that the additions of aluminum oxide (Al2O3) could inhibit the growth of titanium dioxide (TiO2) particles,which increased the specific surface areas and the defects species concentration of Ce-Cu/TiO2.It was beneficial for the adsorption of reaction gas and the enhancement of catalytic activity.Therefore,the appropriate addition of Al2O3 improved catalytic activity at the low temperature,and broadened the active temperature window.The Ce-Cu/Ti-Al-Ox catalyst prepared by adding 20wt% Al2O3 showed the best catalytic activity for catalytic oxidation of CO.It reached 98% CO conversion at 140℃ and 100% CO conversion at 170℃.
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基金资助
国家重点研发计划(2016YFC0205500);国家自然科学基金(51772149);江苏高校优势学科建设工程项目(PAPD);江苏省研究生科研与实践创新计划项目(KYCX18-1078);江苏省六大人才高峰(JNHB-044);江苏重点研发计划(BE2018074)
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