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Compound Oxide CatalysisCO-SCRMechanism Research

Shuting Wang, Yihui Chen


A series. Ce-co-oXCatalysts. prepared by co-precipitation method, CO-SCR performance.Studied. influence CO, CE ratio. activity. CO-SCR. investigated, Ce (0.3)-Co (0.7)-OXSample showedHighest NO conversion efficiency 84% at 250 °C. according. characterization: it. proposed, active sites.CO-SCR. Co. Ce (0.3)-Co (0.7)-OX. There. two reasons responsible. enhanced catalytic performance by Ce doping.Ce-co-oXCatalyst. firstly, specific surface area, pressureswing capacity. increased. Ce doping. Secondly a solidSolution. formed. Ce-co-oXCatalyst, resulting in the enhanced oxygen migration rate.The CO-SCR is lively to follow a mechanism that gaseous or weakly-adsorbed CO returns with adsorbed NO specialties in the forms Bridging bidendate nitrite and chelate nitrate.


Cerium Oxide;Cobalt Oxide;CO-SCR;Weak adsorbed CO;Bridging bidentate nitrite species

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Taylor KC. Nitric Oxide sis in automotive combustion systems [J]. cheminform, 2010,25 (10): 457-481.

Liu L, Yao Z, Liu B, et al. Correlation of structural characteristics with tic performance of CuO/CEXZR1 xO2.STs for no reduction by CO [J]. Journal of sis, 2010,275 (1): 45-60.

Iliopoulou e f, efthimiadis e a, Nalbandian L, et al. IR-based additives for no reduction and CO oxidation in the FCC generator: evaluation, characterization and mechanistic studies [J]. applied sis B: environmental, 2005,60 (3/4): 277-288.

Pérez-Hernández R, Aguilar F, Gómez-Cortés A, et al. No reduction with CH4.Or co on Pt/ZrO?2.-CEO2.STS [J]. SIS today, 2005,107-108: 175-180.

Tu Jing,Fu Lu,Lin Peiyan. PD/γ-Al2.O3.Three-way CatalysisCEO2.The role of Assistant[J].Urge chemistry, 2001,22 (4): 390-396.

Holles j h, Davis r j, Murray t m, et al. effects of Pd particle size and eria loading on NO reduction with CO [J]. journal of SIS, 2000,195 (1): 193-206.

hen Chong,Wu, Shuang,Zang Liang. In-Ag/CEO2.-γ-Al2.O3.Catalytic upperCO-SCRRemovalNoResearch[J].Rare Metal and hard, Alloy, 2016,44 2): 5-63 80.

Zhu h o Kim j r Ihm s k. selective catalytic reduction. NO. CO. Pt/W-Ce-Zr catalysts [J]. reaction Kinetics mechanisms, Catalysis 2009,97 (2): 207-215.

Wen B He M. study. Cu-ce synergism. NO reduction. CO. presence. o ho, SO. FCC operation [J]. applied Catalysis B environmental 2002,1 (37): 75-82.

Liu JieWaveWang Kui tomorrowSuch..Low temperature underCOOf catalytic originalNOXOfStudy[J].Peking University learn(Natural Science Edition) 2017,38 (7): 972-977.

Xu chun baoWuBigSuch.. NO-CO-CO2-N2System in some metal oxideNORemove the anti-of catalytic role[J].In border science1998,18 (3): 45-48.

Guo LeiTaoNormalizing VibrationSuch.. CEModifiedNi-Al-oxCatalyticCO-NOAnti-Performance Study[J].In border scienceHttps:// issn1000-6923.20180626.001.

Kantcheva M milanova M mametsheripov S.. situ FT-IR spectroscopic investigation. gold supported. tungstated zirconia as catalyst. CO-SCR. NOX[J]. Catalysis Today 2012,191: 12-19.

Qin y h, Huang L, Zheng j x, et al. Low-Temperature selective catalytic reduction of NO with CO over a-Cu-BTC and AOX/CuOY/C catalyst [J]. Organic Chemistry communications, 2016,72: 78-82.



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