Perovskite oxides La_0.8Sr_0.2Co_1‒xFe _xO₃ for CO oxidation and CO+NO reduction: Effect of redox property and surface morphology

Abstract

This work aims to study the effect of redox property and surface morphology of perovskite oxides on the catalytic activity of CO oxidation and CO+NO reduction, with the redox property being tuned by doping Fe at the Co site of La_0.8Sr_0.2Co_1‒xFe _xO₃ and the surface morphology being modified by supporting La_0.8Sr_0.2CoO₃ on various me-soporous silicas(i.e., SBA-16, SBA-15, MCF). Characteristic results show that the Fe doping improves the match of redox potentials, and SBA-16 is the best support of La_0.8Sr_0.2CoO₃ when referring to the oxidation ability(e.g., the Co³⁺/Co²⁺ molar ratio). A mechanism for oxygen desorption from perovskite oxides is proposed based on O₂-TPD experiments, showing the evolution process of oxygen released from oxygen vacancy and lattice framework. Cata-lytic tests indicate that La_0.8Sr_0.2CoO₃ is the best for CO oxidation, and La_0.8Sr_0.2FeO₃ is the best for CO+NO reduc-tion. The mechanism of CO+NO reduction changes as the reaction temperature increases, with X _NO/X _CO value de-creases from 2.4 at 250 °C to 1.0 at 400 °C. As for the surface morphology, La_0.8Sr_0.2CoO₃ supported on SBA-16 possesses the highest surface Co³⁺/Co²⁺ molar ratio as compared to the other two, and shows the best activity for CO oxidation.

Keywords

Perovskite oxide / Redox property / Surface morphology / Mesoporous silica / CO oxidation / CO+NO reduc-tion

References

[1] Graham L. A., Belisle S. L., Rieger P. Atmos. Environ., 2009, 43(12): 2031.

[2] Bergek A., Berggren C., Group K. R. Ecol. Econ., 2014, 106: 112.

[3] Zhang X., Dong H., Zhao D., Wang Y., Wang Y., Cui L. Chem. Res. Chinese Universities, 2016, 32(3): 455.

[4] Zhu J., Li H., Zhong L., Xiao P., Xu X., Yang X., Zhao Z., Li J. ACS Catal., 2014, 4: 2917.

[5] Qian L., Ding L. M. Chem. J. Chinese Universities, 2015, 36(4): 595.

[6] Chen Y. G., Wang X. H., Han H. J., Wang H. Y., An H. Y., Song H., Gong X. Z., Zhang J. Chem. J. Chinese Universities, 2017, 38(2): 252.

[7] Zhang Y., Li J., Zhang Z., Liu F., Zhao X., Liu X. Chem. Res. Chi-nese Universities, 2015, 31(5): 699.

[8] Giannakas A. E., Leontiou A. A., Ladavos A. K., Pomonis P. J. Appl. Catal. A: Gen., 2006, 309(2): 254.

[9] Khine M. S. S., Chen L., Zhang S., Lin J., Jiang S. P. Int. J. Hydro-gen. Energ., 2013, 38(30): 13300.

[10] De Lima R. K. C., Batista M. S., Wallau M., Sanches E. A., Masca-renhas Y. P., Urquieta-González E. A. Appl. Catal. B: Environ., 2009, 90(3): 441.

[11] Kim C. H., Qi G., Dahlberg K., Li W. Science, 2010, 327(5973): 1624.

[12] Zawadzki M., Trawczyński J. Catal. Today, 2011, 176(1): 449.

[13] Xiao P., Li H., Wang T., Xu X., Li J., Zhu J. RSC Adv., 2014, 4(24): 12601.

[14] Lakshminarayanan N., Choi H., Kuhn J. N., Ozkan U. S. Appl. Catal. B:Environ., 2011, 103(3): 318.

[15] Zhang J., Tan D., Meng Q., Weng X., Wu Z. Appl. Catal. B: Envi-ron., 2015, 172: 18.

[16] Chen S. X., Wang Y., Jia A. P., Liu H. H., Luo M. F., Lu J. Q. Appl. Surf. Sci., 2014, 307: 178.

[17] Jung W. Y., Song Y. I., Lim K. T., Lee G. D., Lee M. S., Hong S. S. J. Nanosci. Nanotechnol., 2015, 15(1): 652.

[18] Liu M., Hu L., Xu P., Zhao K., Zong L., Yu R., Chen J., Xing X. Chem. Res. Chinese Universities, 2015, 31(3): 342.

[19] Choi S. O., Penninger M., Kim C. H., Schneider W. F., Thompson L. T. ACS Catal., 2013, 3(12): 2719.

[20] Giang H. T., Duy H. T., Ngan P. Q., Thai G. H., Toan N. N. Anal. Methods, 2013, 5(16): 4252.

[21] Wang Y., Cui X., Li Y., Shu Z., Chen H., Shi J. Micropor. Mesopor. Mater., 2013, 176: 8.

[22] Xiao P., Zhong L., Zhu J., Hong J., Li J., Li H., Zhu Y. Catal. Today, 2015, 258: 660.

[23] Li H., Zhu J., Xiao P., Zhan Y., Lv K., Wu L., Li M. Micropor. Me-sopor. Mater., 2016, 221: 159.

[24] Xiao P., Zhu J., Li H., Jiang W., Wang T., Zhu Y., Zhao Y., Li J. Chem. Cat. Chem., 2014, 6(6): 1774.

[25] Yu Z., Gao L., Yuan S., Wu Y. J. Chem. Soc., Faraday Trans., 1992, 88(21): 3245.

[26] Zhao D., Feng J., Huo Q., Melosh N., Fredrickson G. H., Chmelka B. F., Stucky G. D. Science, 1998, 279(5350): 548.

[27] Zhao D., Huo Q., Feng J., Chmelka B. F., Stucky G. D. J. Am. Chem. Soc., 1998, 120(24): 6024.

[28] Liu Y. M., Feng W. L., Li T. C., He H. Y., Dai W. L., Huang W., Cao Y., Fan K. N. J. Catal., 2006, 239(1): 125.

[29] Marezio M., Dernier P. D. Mater. Res. Bull., 1971, 6(1): 23.

[30] Pandey S. K., Khalid S., Lalla N. P., Pimpale A.V. J. Phys: Condens. Mat., 2006, 18(47): 10617.

[31] Zhu J. J., Xiao D. H., Li J., Yang X. G., Wu Y. J. Mol. Catal. A: Chem., 2005, 234(1/2): 99.

[32] Ferri D., Forni L. Appl. Catal. B: Environ., 1998, 16(2): 119.

[33] Mineshige A., Kobune M., Fujii S., Ogumi Z., Inaba M., Yao T., Ki-kuchi K. J. Solid State Chem., 1999, 142(2): 374.

[34] Liu J., Zhao Z., Xu C. M., Duan A. J., Jiang G. Y. J. Phys. Chem. C, 2008, 112(15): 5930.

[35] Li X. G., Dong Y. H., Xian H., Hernández W. Y., Meng M., Zou H. H., Ma A. J., Zhang T. Y., Jiang Z., Tsubaki N. Energy Environ. Sci., 2011, 4(9): 3351.

[36] Zhang R., Villanueva A., Alamdari H., Kaliaguine S. J. Catal., 2006, 237(2): 368.

[37] Kaliaguine S., Van Neste A., Szabo V., Gallot J. E., Bassir M., Mu-zychuk R. Appl. Catal. A: Gen., 2001, 209(1/2): 345.

[38] Au C. T., Chen K. D., Dai H. X., Liu Y. W., Luo J. Z., Ng C. F. J. Catal., 1998, 179(1): 300.

[39] Royer S., Van Neste A., Davidson R., McIntyre S., Kaliaguine S. Ind. Eng. Chem. Res., 2004, 43(18): 5670.

[40] Zhang R., Luo N., Chen B., Kaliaguine S. Energ. Fuel., 2010, 24(7): 3719.

[41] Leontiou A. A., Ladavos A. K., Pomonis P. J. Appl. Catal. A: Gen., 2003, 241(1): 133.

[42] Zhu J. J., Zhao Z., Xiao D. H., Li J., Yang X. G., Wu Y. Ind. Eng. Chem. Res., 2005, 44(12): 4227.

[43] Ladavos A. K., Pomonis P. J. Appl. Catal. A: Gen., 1997, 165(1/2): 73.

[44] Giannakas A. E., Ladavos A. K., Pomonis P. J. Appl. Catal. B: En-viron., 2004, 49(3): 147.

[45] Forni L., Oliva C., Barzetti T., Selli E., Ezerets A. M., Vishniakov A. V. Appl. Catal. B: Environ., 1997, 13(1): 35.

[46] Zhao Z., Yang X. G., Wu Y. Appl. Catal. B: Environ., 1996, 8(3): 281.

[47] Hoang M., Hughes A. E., Turney T. W. Appl. Surf. Sci., 1993, 72(1): 55.