CuO/CeO2 Catalysts Prepared by Iodic Acid Improved Sol-gel Method for Preferential CO Oxidation

doi:10.7503/cjcu20130468

Abstract

Abstract:

CuO/CeO₂ catalysts were prepared by iodic acid improved sol-gel method, and the catalytic performances for the preferential oxidation of CO in excess hydrogen were evaluated. Compared with the conventional catalysts, the catalytic activities of iodic acid modified catalysts were markedly improved. The catalysts were characterized by a series of techniques such as temperature-programmed reduction in H₂(H₂-TPR), X-ray diffraction(XRD), transmission electron microscope(TEM), X-ray photoelectron spectroscopy analysis(XPS) and energy dispersive spectrometer(EDS). It was found that the improved method offered catalysts with smaller crystallite size, higher dispersion, more surface actual content of Ce³⁺ and reduced CuO species, which led to improving the performance of catalysts.

Key words: Sol-gel method, Iodic acid improved, CuO/CeO₂ catalyst, Preferential oxidation of CO(CO-PROX), Catalytic performance

CLC Number:

O643.36

TrendMD:

SHEN Pan, CHEN Chao, WANG Rui, JIANG Wan, ZHANG Ning. CuO/CeO₂ Catalysts Prepared by Iodic Acid Improved Sol-gel Method for Preferential CO Oxidation[J]. Chem. J. Chinese Universities, 2013, 34(11): 2580.

References

[1] Li J., Zhu P., Zhou R., J. Power Sources, 2011, 196(22), 9590-9598

[2] Fu J., Qiao J. L., Ma J. X., Chem. J. Chinese Universities, 2011, 32(7), 1598-1604(傅婧, 乔锦丽, 马建新. 高等学校化学学报, 2011, 32(7), 1598-1604)

[3] Li J., Zhu P., Zuo S., Huang Q., Zhou R., Appl. Catal. A-Gen., 2010, 381, 261-266

[4] Gamarra D., Cámara A. L., Monte M., Appl. Catal. B., 2013, 130/131, 224-238

[5] Kim K. Y., Han J., Nam S. W., Lim T. H., Lee H. I., Catal. Today, 2008, 131, 431-436

[6] Zhang F., Chen C., Xiao W. M., Xu L., Zhang N., Catal. Commun., 2012, 26, 25-29

[7] Liu Z., Zhou R., Zheng X., Journal of Natural Gas Chemistry, 2008, 17(2), 125-129

[8] Luo M. F., Song Y. P., Wang X. Y., Catal. Commun., 2007, 8(5), 834-838

[9] Huang J. F., Cao L. Y., Li Q. J., Principles and Techniques of the Sol-gel, Chemical Industry Press, Beijing, 2005, 1-14(黄剑锋, 曹丽云, 李启甲. 溶胶凝胶原理与技术, 北京: 化学工业出版社, 2005, 1-14)

[10] Ferreira A. C., Ferraria A. M., Botelho do Rego A. M., Mol. Catal. A-Chem., 2010, 320, 47-55

[11] Araújo V. D., Bellido J. D. A., Bernardi M. I. B., Assaf J. M., Assaf E. M., International Journal of Hydrogen Energy, 2012, 37(7), 5498-5507

[12] Horne's A., Hungría A. B., Bera P., J. Am. Chem. Soc., 2010, 132, 34-35

[13] Avgouropoulos G, Ioannides T., Appl. Catal. B, 2006, 67, 1-11

[14] Firsova A. A., Khomenko T. I., Il'ichev A. N., Kinetics and Catalysis, 2008, 49(5), 682-691

[15] Lee H. C., Kim D. H., Catalysis Today, 2008, 132(1-4), 109-116

[16] Moretti E., Storaro L., Talon A., Appl. Catal. B, 2011, 102, 627-637

[17] Xu L., Chen C., Wang R., Luo J. H., Liu Y. L., Zhang N., Chem. J. Chinese Universities, 2013, 34(8), 1907-1912(徐力, 陈超, 王瑞, 罗家还, 刘云凌, 张宁. 高等学校化学学报, 2013, 34(8), 1907-1912)

[18] Moretti E., Lenarda M., Riello P., Appl. Catal. B, 2013, 129, 556-565

[19] Qi L., Yu Q., Dai Y., Appl. Catal. B, 2012, 119/120, 308-320

[20] Li K., Huang J. F., Cao L.Y., Wang B., Shi Z. Y., Journal of Inorganic Materials, 2011, 26(3), 275-280(李抗, 黄剑锋, 曹丽云, 王博, 施浙勇. 无机材料学报, 2011, 26(3), 275-280)

Related Articles 15

[1]	JIANG Xiaokang, ZHOU Qi, ZHOU Hengwei. Synthesis and Luminescence Properties of Gd₂ZnTiO₆∶Dy³⁺， Eu³⁺ Single Phase White Light-emitting Phosphors [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220029.
[2]	ZHANG Taiwen, GUO Jun, ZHANG Dan, YUAN Changmei, QIU Shuangyan. Synthesis， Characterization and Catalytic Oxidation Iodine Ion Performance of trz-Cl-Cu-PMo₁₂ [J]. Chem. J. Chinese Universities, 2022, 43(10): 20220215.
[3]	LI Yishan, GUO Liang, PENG Sifan, ZHANG Qingmao, ZHANG Yuhao, XU Shiqi. Cobalt Substitutions in Lanthanum Manganate Photocatalyst： First-principles and Visible-light Photocatalytic Ability Investigation [J]. Chem. J. Chinese Universities, 2021, 42(6): 1881.
[4]	HAN Yandong, HAN Mingyong, YANG Wensheng. Sol-gel Construction of Mesoporous Silica Nanomicrostructures [J]. Chem. J. Chinese Universities, 2021, 42(4): 965.
[5]	HAN Hongjing,GE Qin,CHEN Yanguang,WANG Haiying,ZHAO Hongzhi,WANG Yizhen,ZHANG Yanan,DENG Jitong,SONG Hua,ZHANG Mei. Production of Phenolic Compounds from Bagasse Lignin via Catalytic Pyrolysis of Ca₁_-xPr_xFe $O 3 †$ [J]. Chem. J. Chinese Universities, 2020, 41(2): 331.
[6]	ZHANG Ronghui, MIN Deng, WANG Lailai, XIE Wenjian. Research Progress of Catalysts for Gas-phase Fluorination to Synthesize Hydorfluoroolefins^† [J]. Chem. J. Chinese Universities, 2020, 41(10): 2199.
[7]	MA Qinghai,CUI Fang,LIU Mufei,XU linxu,ZHANG Jiajia,CUI Tieyu. Synthesis and Catalytic Performance of Pd/PdO Nanocomposite Microspheres ^† [J]. Chem. J. Chinese Universities, 2019, 40(10): 2041.
[8]	ZHANG Shuming, LUO Jianhui, XIA Bibo, LI Yuanyang, HE Meiying, JIANG Bo. Sol-gel Preparation of Superhydrophilic Silica Coating-materials with Low Refractive Index^† [J]. Chem. J. Chinese Universities, 2018, 39(6): 1342.
[9]	XIAO Shanshan, OUYANG Yiting, LI Xiaoyun, WANG Zhao, WU Pan, DENG Zhao, CHEN Lihua, SU Baolian. Synthesis of a Core-shell Structured Ag/ZIF-8 Catalyst with Mesoporous Silica Shell^† [J]. Chem. J. Chinese Universities, 2018, 39(6): 1235.
[10]	LUO Jianhui,YANG Jie,LI Yuanyang,HE Lipeng,JIANG Bo. Synthesis of Amphiphilic Silica Nanoparticles with Double-sphere Morphology^† [J]. Chem. J. Chinese Universities, 2018, 39(10): 2170.
[11]	YANG Tao, CHENG Tiexin, ZHOU Guangdong. Effects of Ag or Yb Doping on Thermoelectric Properties of Ca₃Co_3.9Cu_0.1 $O 9 - δ †$ [J]. Chem. J. Chinese Universities, 2017, 38(3): 335.
[12]	HE Meiying, LUO Jianhui, YANG Bowen, XIA Bibo, LI Yuanyang, ZHANG Shuming, JIANG Bo. Sol-gel Preparation of Hydrophobic Silica Coating-materials with Ultralow Refractive Index^† [J]. Chem. J. Chinese Universities, 2017, 38(11): 2077.
[13]	YANG Ziwei, ZHOU Shunli, WANG Rui, WANG Feng, JIANG Yan, ZHANG Xiuqin. Preparation and Characterization of Self-cleaning Cotton Fabric^† [J]. Chem. J. Chinese Universities, 2017, 38(10): 1880.
[14]	ZHANG Yanping,YANG Chunhui,CHEN Pan,RAN Tangchun,LI Jiao,YIN Yongxiang. Activity of Catalysts Reduced by Plasma in CO₂ Methanation^† [J]. Chem. J. Chinese Universities, 2016, 37(8): 1521.
[15]	XIA Yanyang, BU Tiantong, WANG Licheng, ZHU Wanchun, YANG Xuwei, BAO Qiang, HAO Mengmeng, CHENG Dongdong, WANG Zhenlü. Hydrodealkylation of Trimethylbenzene over Silicon-based Catalyst^† [J]. Chem. J. Chinese Universities, 2016, 37(12): 2215.

CuO/CeO₂ Catalysts Prepared by Iodic Acid Improved Sol-gel Method for Preferential CO Oxidation

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments