表面覆盖SiO2用于提高Pt-Pd/CeO2-ZrO2-Al2O3商用柴油机氧化型催化剂的抗硫性

doi:10.3866/PKU.WHXB201404281

Abstract

Abstract:

In this work, porous SiO₂ was added to the Pt-Pd/CeO₂-ZrO₂-Al₂O₃ (Pt-Pd/CZA) commercial diesel oxidation catalyst (DOC) to improve its sulfur resistibility. The SiO₂/Pt-Pd/CeO₂-ZrO₂-Al₂O₃ (SiO₂/Pt-Pd/CZA) catalyst was prepared by surface coating porous SiO₂ onto the Pt-Pd/CZAmonolithic commercial DOC using a multilayer coating method. The as-prepared catalysts were characterized by scanning electron microscopy (SEM), H₂ temperature-programmed reduction (H₂-TPR), nitrogen adsorption-desorption, energy-dispersive X-ray (EDX) spectroscopy, and thermogravimetric analysis (TGA). SEM images show that the SiO₂ layer is porous and uniformly covers the surface of the catalyst. Nitrogen adsorption-desorption isotherm results imply that the texture properties of the as-added SiO₂ are similar to those of the Pt-Pd/CZA catalyst, and hence the specific surface area and pore structure of the Pt-Pd/CZA catalyst do not obviously change upon cladding with SiO₂. The H₂-TPR results imply that the reduction property of the Pt-Pd/CZA catalyst is not obviously affected by surface cladding with SiO₂. EDX spectroscopy and TGA results demonstrate that the formation and accumulation of sulfur-contained species on the Pt-Pd/CZA catalyst are suppressed by the SiO₂ surface coating. Finally, the as-prepared SiO₂/Pt-Pd/CZA catalyst efficiently retained its high catalytic performance and improved the sulfur resistance of the Pt-Pd/CZA commercial DOC.

Key words: Diesel oxidation catalyst, Sulfur resistance, Monolithic catalyst, Multilayer coating, Vehicle exhaust

YANG Zheng-Zheng, YANG Yi, ZHAO Ming, GONG Mao-Chu, CHEN Yao-Qiang . Enhanced Sulfur Resistance of Pt-Pd/CeO₂-ZrO₂-Al₂O₃ Commercial Diesel Oxidation Catalyst by SiO₂ Surface Cladding[J]. Acta Phys. -Chim. Sin. 2014, 30(6), 1187-1193. doi: 10.3866/PKU.WHXB201404281

References

(1) Grubert, G.; Neubauer, T.; Punke, A. H.; Mueller-Stach, T.W.; Siani, A.; Roth, S. A.; Hoke, J. B.; Sung, S.; Li, Y.;Wei, X.; Deeba, M. Diesel Oxidation Catalyst Composite with Layer Structure for Carbon Monoxide and Hydrocarbon Conversion. US Pat. 20100180581, 2010.
(2) Bailey, O. H.; Hedgecock, M. Architectural Diesel Oxidation Catalyst for Enhanced NO2 Generator. US Pat. 20110099975, 2011.
(3) Grubert, G.; Neubauer, T.; Punke, A. H.; Mueller-Stach, T.W.; Siani, A.; Roth, S. A.; Hoke, J. B.; Sung, S.; Li, Y.;Wei, X.; Deeba, M. Diesel Oxidation Catalyst Composite with Layer Structure for Carbon Monoxide and Hydrocarbon Conversion. US Pat. 8211392, 2012.
(4) Zhong, F. L.; Zhong, Y. J.; Xiao, Y. H.; Cai, G. C.; Zheng, Y.; Wei, K. M. Chin. J. Catal. 2011, 32, 1469. [钟富兰, 钟喻娇, 肖益鸿, 蔡国辉, 郑勇, 魏可镁. 催化学报, 2011, 32, 1469.]
(5) Zhou, J. F.; Zhao, M.; Peng, N.; Yang, Z. Z.; Gong, M. C.; Chen, Y. Q. Acta Phys. -Chim. Sin. 2012, 28, 1448. [周菊发, 赵明, 彭娜, 杨铮铮, 龚茂初, 陈耀强. 物理化学学报, 2012, 28, 1448.] doi: 10.3866/PKU.WHXB201204011
(6) Zhu, Y.;Wang, J. L.; Chen, Y. D.; Liao, C.W.;Wang, S. D.; Gong, M. C.; Chen, Y. Q. Acta Phys. -Chim. Sin. 2011, 27, 925. [朱艺, 王健礼, 陈永东, 廖传文, 王世丹, 龚茂初, 陈耀强. 物理化学学报, 2011, 27, 925.] doi: 10.3866/PKU.WHXB20110343
(7) Wei, Y. C.; Liu, J.; Zhao, Z.; Duan, A. J.; Jiang, G. Y. J. Catal. 2012, 287, 13. doi: 10.1016/j.jcat.2011.11.006
(8) Wei, Y. C.; Zhao, Z.; Yu, X. H.; Jin, B. F.; Liu, J.; Xu, C. M.; Duan, A. J.; Jiang, G. Y.; Ma, S. H. Catal. Sci. Technol. 2013, 3, 2958. doi: 10.1039/c3cy00248a
(9) Wei, Y. C.; Liu, J.; Zhao, Z.; Xu, C. M.; Duan, A. J.; Jiang, G. Y. Appl. Catal. A: Gen. 2013, 453, 250. doi: 10.1016/j.apcata.2012.12.013
(10) Chen, S.; Yao, Y.; Lan, L.; Cao, Y.; Yan, C.; Gong, M.; Chen, Y. Chin. J. Catal. 2012, 33, 1762. [陈山虎, 姚艳玲, 兰丽, 曹毅, 闫朝阳, 龚茂初, 陈耀强. 催化学报, 2012, 33, 1762.]
(11) Liu, J.; Zhao, M.; Xu, C.; Liu, S.; Zhang, X.; Chen, Y. Chin. J. Catal. 2013, 34, 751. [刘建英, 赵明, 徐成华, 刘盛余, 张雪乔, 陈耀强. 催化学报, 2013, 34, 751.]
(12) Xiao, Y. H.; Yang, H. G.; Cai, G. H.; Zheng, Y.; Zheng, Y.;Wei, K. M. Acta Phys. -Chim. Sin. 2012, 28, 245. [肖益鸿, 杨黄根, 蔡国辉, 郑勇, 郑瑛, 魏可镁. 物理化学学报, 2012, 28,245.] doi: 10.3866/PKU.WHXB201228245
(13) Fang, R. M.; He, S. N.; Cui, Y. J.; Shi, Z. H.; Gong, M. C.; Chen, Y. Q. Chin. J. Catal. 2012, 33, 1014. [方瑞梅, 何胜楠, 崔亚娟, 史忠华, 龚茂初, 陈耀强. 催化学报, 2012, 33, 1014.]
(14) Zhan, Z.; Liu, X.; He, H.; Song, L.; Li, J.; Ma, D. J. Rare Earths 2013, 31, 750. doi: 10.1016/S1002-0721(12)60353-6
(15) Liu, B. B.; Zhang, G. Z.; He, H.; Li, J. Z.; Zi, X. H.; Qiu,W. G.; Dai, H. X. Chem. J. Chin. Univ. 2013, 34, 1936. [刘北北, 张桂臻, 何洪, 李金洲, 訾学红, 邱文革, 戴洪兴. 高等学校化学学报, 2013, 34, 1936.]
(16) Deshmukh, S. S.; Zhang, M. H.; Kovalchuk, V. I.; d′Itri, J. L. Appl. Catal. B: Environ. 2003, 45, 135. doi: 10.1016/S0926-3373(03)00128-0
(17) Luo, T.; Gorte, R. J. Appl. Catal. B: Environ. 2004, 53, 77. doi: 10.1016/j.apcatb.2004.04.020
(18) Galisteo, F. C.; Mariscal, R.; Granados, M. L.; Poves, M. D. Z.; Fierro, J. L. G.; Kröger, V.; Keiski, R. L. Appl. Catal. B: Environ. 2007, 72, 272. doi: 10.1016/j.apcatb.2006.11.004
(19) Tan, P.; Hu, Z.; Lou, D. Fuel 2009, 88, 1086. doi: 10.1016/j.fuel.2008.11.031
(20) Zhang, K.; Hu, J.; Gao, S.; Liu, Y.; Huang, X.; Bao, X. Energy Policy 2010, 38, 2934. doi: 10.1016/j.enpol.2010.01.030
(21) Ueno, H.; Furutani, T.; Nagami, T.; Aono, N.; Goshima, H.; Kasahara, K. Development of Catalyst for Diesel Engine. SAE paper 980195, 1998.
(22) Verdier, S.; Harle, V.; Huang, A.; Rohart, E.; Larcher, O.; Allain, M. Doped Zirconia with High Thermal Stability, for High Sulfur Resistance Diesel Oxidation Catalysts. SAE paper 2006-01-0031, 2006.
(23) Paulson, T.; Moss, B.; Todd, B.; Eckstein, C.;Wise, B.; Singleton, D.; Zemskova, S.; Silver, R. New Developments in Diesel Oxidation Catalysts. SAE paper 2008-01-2638, 2008.
(24) Zhong, F.; Zhong, Y.; Xiao, Y.; Cai, G.;Wei, K. Catal. Lett. 2011, 141, 1828. doi: 10.1007/s10562-011-0711-2
(25) Yang, Z. Z.; Chen, Y. D.; Zhao, M.; Zhou, J. F.; Gong, M. C.; Chen, Y. Q. Chin. J. Catal. 2012, 33, 819. [杨铮铮, 陈永东, 赵明, 周菊发, 龚茂初, 陈耀强. 催化学报, 2012, 33, 819.]
(26) Andersson, J.; Antonsson, M.; Eurenius, L.; Olsson, E.; Skoglundh, M. Appl. Catal. B: Environ. 2007, 72, 71. doi: 10.1016/j.apcatb.2006.10.011
(27) Koranne, M. M.; Pryor, J. N.; Chapman, D. M.; Brezny, R. Sulfur Tolerant Alumina Catalyst Support. US Pat. 8076263B2, 2011.
(28) Russell, A.; Epling,W. S. Catal. Rev.: Sci. Eng. 2011, 53, 337. doi: 10.1080/01614940.2011.596429
(29) Adams, K. M.; Cavataio, J. V.; Hammerle, R. H. Appl. Catal. B: Environ. 1996, 10, 157. doi: 10.1016/0926-3373(96)00029-X
(30) Kaapar, J.; Fornasiero, P.; Hickey, N. Catal. Today 2003, 77, 419. doi: 10.1016/S0920-5861(02)00384-X
(31) Park, S.; Pak, C. Catalyst and Fabrication Method of Same for Purifying Exhaust Gases of Automobile. US Pat. 5814577, 1998.
(32) Sun, K. P.; Lu,W.W.;Wang, M.; Xu, X. L. Appl. Catal. A: Gen. 2004, 268, 107. doi: 10.1016/j.apcata.2004.03.020
(33) Zhang, X. Q.;Wang, S. D.; Xin, X.; Liu, S. Y.; Chen, Y. Q.; Zhao, M. Chin. J. Inorg. Chem. 2012, 28, 1563. [张雪乔, 王世丹, 信欣, 刘盛余, 陈耀强, 赵明. 无机化学学报, 2012, 28, 1563.]
(34) Fornasiero, P.; Monte, R. D.; Rao, G. R.; Kaapar, J.; Merriani, S.; Trovarelli, A.; Graziani, M. J. Catal. 1995, 151, 168. doi: 10.1006/jcat.1995.1019
(35) Fornasiero, P.; Balducci, G.; Monte, R. D.; Kaapar, J.; Sergo, V.; Gubitosa, G.; Ferrero, A.; Graziani, M. J. Catal. 1996, 164, 173. doi: 10.1006/jcat.1996.0373
(36) Leyrer, J.; Lox, E. S.; Ostgathe, K.; Strehlau,W.; Kreuzer, T.; Garr, G. Advanced Studies on Diesel after Treatment Catalysts for Passenger Cars. SAE Paper 960133, 1996.
(37) Kharas, K. C. C.; Bailey, O. H.; Vuichard, J. Improvements in Intimately Coupled Diesel Hydrocarbon Adsorber/Lean NOx Catalysis Leading to Durable Euro 3 Performance. SAE Paper 982603. 1998. doi: 10.7623/syxb201401001

[1]	Yu-Fen HUANG,Hai-Long ZHANG,Zheng-Zheng YANG,Ming ZHAO,Mu-Lan HUANG,Yan-Li LIANG,Jian-Li WANG,Yao-Qiang CHEN. Effects of CeO₂ Addition on Improved NO Oxidation Activities of Pt/SiO₂-Al₂O₃ Diesel Oxidation Catalysts [J]. Acta Phys. -Chim. Sin., 2017, 33(6): 1242-1252.
[2]	SHANG Hong-Yan, HU Wei, WANG Yun, REN Cheng-Jun, GONG Mao-Chu, CHEN Yao-Qiang. Effects of H₂O and O₂ on the Reaction of NO Reduction by CH₄ under Stoichiometric Natural Gas Vehicles [J]. Acta Phys. -Chim. Sin., 2015, 31(4): 750-756.
[3]	Yi. YANG,Zheng-Zheng. YANG,Hai-Di. XU,Bao-Qiang. XU,Yan-Hua. ZHANG,Mao-Chu. GONG,Yao-Qiang. CHEN. Influence of La on CeO₂-ZrO₂ Catalyst for Oxidation of Soluble Organic Fraction from Diesel Exhaust [J]. Acta Phys. -Chim. Sin., 2015, 31(12): 2358-2365.
[4]	CHEN Yong-Dong, WANG Lei, TANG Shui-Hua, CAO Hong-Yan, GONG Mao-Chu, CHEN Yao-Qiang. Effect of Ce_0.45Zr_0.45Y_0.07La_0.03O_1.95/La-Ba-Al₂O₃ Mass Ratio on the Activity of Fe-Based Monolithic Catalysts for the Combustion of Thin Methane [J]. Acta Phys. -Chim. Sin., 2012, 28(05): 1237-1242.
[5]	ZHAO Fu-Zhen, ZENG Peng-Hui, JI Sheng-Fu, YANG Xiao, LI Cheng-Yue. Catalytic Combustion of Toluene over CuxCo1?x/Al2O3/FeCrAl Monolithic Catalysts [J]. Acta Phys. -Chim. Sin., 2010, 26(12): 3285-3290.
[6]	XU Hai-Di, QIU Chun-Tian, ZHANG Qiu-Lin, LIN Tao,GONG Mao-Chu, CHEN Yao-Qiang. Influence of Tungsten Oxide on Selective Catalytic Reduction of NO_x with NH₃ over MnO_x -CeO₂ /ZrO₂-TiO₂Monolith Catalyst [J]. Acta Phys. -Chim. Sin., 2010, 26(09): 2449-2454.
[7]	WANG Jian-Li, WANG Kang-Cai, CAO Hong-Yan, CHEN Yong-Dong, LIU Zhi-Min, ZHU Yi, GONG Mao-Chu, CHEN Yao-Qiang. Low Temperature Catalytic Combustion of Cooking Fume over Pt/γ-Al₂O₃/Ce_xZr_1-xO₂ Catalyst [J]. Acta Phys. -Chim. Sin., 2009, 25(04): 689-693.

Enhanced Sulfur Resistance of Pt-Pd/CeO₂-ZrO₂-Al₂O₃ Commercial Diesel Oxidation Catalyst by SiO₂ Surface Cladding

PDF

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 7

Metrics

Recommended 0

Enhanced Sulfur Resistance of Pt-Pd/CeO2-ZrO2-Al2O3 Commercial Diesel Oxidation Catalyst by SiO2 Surface Cladding

PDF

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 7

Metrics

Recommended 0

Enhanced Sulfur Resistance of Pt-Pd/CeO₂-ZrO₂-Al₂O₃ Commercial Diesel Oxidation Catalyst by SiO₂ Surface Cladding