Study on performance of Ce-Cu/Ti-Al-Ox for catalytic oxidation of CO
Jin Qijie1,2,3, Tao Xingjun1,2, Shen Jianyu1,2, Yu Jianzhong1, Shen Yuesong1,2, Zhu Shemin1,2
1.College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009; 2.Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites,Nanjing Tech University,Nanjing 210009; 3.Department of Chemistry and Biochemistry,University of Texas at El Paso,El Paso 79968
Abstract: 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℃.
金奇杰, 陶兴军, 沈建宇, 俞建忠, 沈岳松, 祝社民. Ce-Cu/Ti-Al-Ox催化氧化CO的性能研究[J]. 化工新型材料, 2019, 47(9): 182-186.
Jin Qijie, Tao Xingjun, Shen Jianyu, Yu Jianzhong, Shen Yuesong, Zhu Shemin. Study on performance of Ce-Cu/Ti-Al-Ox for catalytic oxidation of CO. New Chemical Materials, 2019, 47(9): 182-186.
[1] 谭海燕,王祥,石新雨,等.ML-53(Al)与Al2O3负载铜铈催化剂的制备及CO氧化性能对比[J].化工新型材料,2017,45(8):193-195. [2] Nagarajan V,Chandiramouli R.Investigation on adsorption properties of CO and NO gas molecules on aluminene nanosheet:a density functional application[J].Materials Science and Engineering B(Advanced Functional Solid-State Materials),2018,229:193-200. [3] 刘有毅,黄艳,何嘉杰,等.CO/N2/CO2在MOF-74(Ni)上吸附相平衡和选择性[J].化工学报,2015,66(11):4469-4475. [4] Yu X H,Zhang X M,Meng Y,et al.CO adsorption,dissociation and coupling formation mechanisms on Fe2C(001) surface[J].Applied Surface Science,2018,434:464-472. [5] Meunier F,Maffre M,Schuurman Y,et al.Acetylene semi-hydrogenation over Pd-Zn/CeO2:relevance of CO adsorption and methanation as descriptors of selectivity[J].Catalysis Communications,2018,105:52-55. [6] Tou M,Michalsky R,Steinfeld A.Solar-driven thermochemical splitting of CO2 and in situ separation of CO and O2 across a cria redox membrane reactor[J].Joule,2017,1(1):146-154. [7] Korelskiy D,Grahn M,Ye P,et al.A study of CO2/CO separation by sub-micron b-oriented MFI membranes[J].RSC Advances,2016,6(70):65475-65482. [8] Green I X,Tang W J,Neurock M,et al.Spectroscopic observation of dual catalytic sites during oxidation of CO on a Au/TiO2 catalyst[J].Science,2011,333(6043):736-739. [9] Ostrom H,Oberg H,Xin H,et al.Probing the transition state region in catalytic CO oxidation on Ru[J].Science,2015,347(6225):978-982. [10] Chen G Z,Xu Q H,Yang Y,et al.Facile and mild ztrategy to construct mesoporous CeO2-CuO nanorods with enhanced catalytic activity toward CO oxidation[J].ACS Applied Materials & Interfaces,2015,7(42):23538-23544. [11] 张喜悦,张华.介孔CuO-CeO2复合催化剂的制备及催化性能研究[J].化工新型材料,2016,44(12):174-176. [12] Jin Q J,Shen Y S,Zhu S M,et al.Effect of praseodymium additive on CeO2(ZrO2)/TiO2 for selective catalytic reduction of NO by NH3[J].Journal of Rare Earths,2016,34(11):1111-1120. [13] 孙敬方,张雷,葛成艳,等.固相浸渍法和湿浸渍法制备CuO/CeO2催化剂及其CO氧化性能的对比研究[J].催化学报,2014,35(8):1347-1358. [14] Guo X L,Li J,Zhou R X.Catalytic performance of manganese doped CuO-CeO2 catalysts for selective oxidation of CO in hydrogen-rich gas[J].Fuel,2016,163:56-64. [15] Han Q W,Zhu B L,Tian J,et al.Synthesis and catalytic performance for CO oxidation of CuO modified-TiO2 nanotubes with high thermal stability via functionalized sol modification[J].Chinese Journal of Inorganic Chemistry,2014,30(3):573-578. [16] Wang C L,Wang H W,Yao Q,et al.Precisely applying TiO2 overcoat on supported Au catalysts using atomic layer deposition for understanding the reaction mechanism and improved activity in CO oxidation[J].Journal of Physical Chemistry C,2016,120(1):478-486. [17] Zhou Y,Doronkin D E,Chen M L,et al.Interplay of Pt and crystal facets of TiO2:CO oxidation activity and operando XAS/DRIFTS studies[J].Environmental Science & Technology,2016,50(17):9773-9780. [18] Zhu J,Mu W T,Su L Q,et al.Al-doped TiO2 mesoporous material supported Pd with enhanced catalytic activity for complete oxidation of ethanol[J].Journal of Solid State Chemistry,2017,248:142-149. [19] Yang K,Liu J F,Si R R,et al.Comparative study of Au/TiO2 and Au/Al2O3 for oxidizing CO in the presence of H2 under visible light irradiation[J].Journal of Catalysis,2014,317:229-239. [20] Reddy B M,Reddy G K,Ganesh I,et al.Single step synthesis of nanosized CeO2-MxOy mixed oxides (MxOy=SiO2,TiO2,ZrO2,and Al2O3) by microwave induced solution combustion synthesis:characterization and CO oxidation[J].Journal of Materials Science,2009,44(11),2743-2751. [21] Wang Y G,Cantu D C,Lee M S,et al.CO oxidation on Au/TiO2:condition-dependent active sites and mechanistic pathways[J].Journal of the American Chemical Society,2016,138(33):10467-10476. [22] Liu S M,Guo R T,Sun P,et al.The enhancement of Zn resistance of Mn/TiO2 catalyst for NH3-SCR reaction by the modification with Al2(SO4)3[J].Journal of the Taiwan Institute of Chemical Engineers,2017,78:370-377.