Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly

2008   Vol. 9   No. 1   p. 113~117

Effect of nitrogen doping on the reduction of nitric oxide with activated carbon in the presence of oxygen

Xian-kai WAN^†, Hui-xiang SHI^†‡, Xue-quan ZOU, Peng GE, Da-hui WANG

(Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027, China)
^‡ Corresponding Author
^†E-mail: xkwan@zju.edu.cn; huixiangshi@163.com
Received July 20, 2007; revision accepted Oct. 20, 2007; published online Nov. 25, 2007

Abstract: Nitrogen doping of activated carbon (AC) was performed by annealing both in ammonia and nitric oxide, and the activities of the modified carbons for NO reduction were studied in the presence of oxygen. Results show that nitrogen atoms were incorporated into the carbons, mostly in the form of pyridinic nitrogen or pyridonic nitrogen. The effect of nitrogen doping on the activities of the carbons can be ignored when oxygen is absent, but the doped carbons show desirable activities in the low temperature regime ((500 °C) when oxygen is present. The role of the surface nitrogen species is suggested to promote the formation of NO₂ in the presence of oxygen, and NO₂ can facilitate decomposition of the surface oxygen species in the low temperature regime.

Key words: Activated carbon (AC), Nitric oxide, Doping, Reduction
doi:10.1631/jzus.A073019             CLC number: X5; TQ53

References:

[1] Aarna, I., Suuberg, E.M., 1997. A review of the kinetics of the nitric oxide-carbon reaction. Fuel, 76(6):475-491.

[2] Azambre, B., Collura, S., Trichard, J.M., Weber, J.V., 2006. Nature and thermal stability of adsorbed intermediates formed during the reaction of diesel soot with nitrogen dioxide. Appl. Surf. Sci., 253(4):2296-2303.

[3] Biniak, S., Szymański, G.S., Siedlewski, J., Świątkowski, A., 1997. The characterization of activated carbons with oxygen and nitrogen surface groups. Carbon, 35(12): 1799-1810.

[4] Chambrion, P., Orikasa, H., Suzuki, T., Kyotani, T., Tomita, A., 1997. A study of the C-NO reaction by using isotopically labeled C and NO. Fuel, 76(6):493-498.

[5] Gupta, H., Fan, L.S., 2003. Reduction of nitric oxide from combustion flue gas by bituminous coal char in the presence of oxygen. Ind. Eng. Chem. Res., 42(12): 2536-2543.

[6] Huang, M.C., Teng, H., 2003. Nitrogen-containing carbons from phenol-formaldehyde resins and their catalytic activity in NO reduction with NH₃. Carbon, 41(5):951-957.

[7] Jeguirim, M., Tschamber, V., Brilhac, J.F., Ehrburger, P., 2005. Oxidation mechanism of carbon black by NO₂: Effect of water vapour. Fuel, 84(14-15):1949-1956.

[8] Klose, W., Rincón, S., 2007. Adsorption and reaction of NO on activated carbon in the presence of oxygen and water vapour. Fuel, 86(1-2):203-209.

[9] Liu, Z., Wang, A.Q., Wang, X.D., Zhang, T., 2006. Reduction of NO by Cu-carbon and Co-carbon xerogels. Carbon, 44(11):2345-2347.

[10] Matzner, S., Boehm, H.P., 1998. Influence of nitrogen doping on the adsorption and reduction of nitric oxide by activated carbons. Carbon, 36(11):1697-1700.

[11] Muckenhuber, H., Grothe, H., 2006. The heterogeneous reaction between soot and NO₂ at elevated temperature. Carbon, 44(3):546-559.

[12] Muckenhuber, H., Grothe, H., 2007. A DRIFTS study of the heterogeneous reaction of NO₂ with carbonaceous materials at elevated temperature. Carbon, 45(2):321-329.

[13] Setiabudi, A., Makkee, M., Moulijn, J.A., 2004. The role of NO₂ and O₂ in the accelerated combustion of soot in diesel exhaust gases. Appl. Catal. B: Environmental, 50(3):185-194.

[14] Stöhr, B., Boehm, H.P., Schlögl, R., 1991. Enhancement of the catalytic activity of activated carbons in oxidation reactions by thermal treatment with ammonia or hydrogen cyanide and observation of a superoxide species as a possible intermediate. Carbon, 29(6):707-720.

[15] Suzuki, T., Kyotani, T., Tomita, A., 1994. Study on the carbon-nitric oxide reaction in the presence of oxygen. Ind. Eng. Chem. Res., 33(11):2840-2845.

[16] Szymański, G.S., Grzybek, T., Papp, H., 2004. Influence of nitrogen surface functionalities on the catalytic activity of activated carbon in low temperature SCR of NO_x with NH₃. Catal. Tod., 90(1-2):51-59.

[17] Tomita, A., 2001. Suppression of nitrogen oxides emission by carbonaceous reductants. Fuel Processing Tech., 71(1-3): 53-70.

[18] Wan, X.K., Zou, X.Q., Shi, H.X., Wang, D.H., 2007. Nitrogen doping of activated carbon loading Fe₂O₃ and activity in carbon-nitric oxide reaction. Journal of Zhejiang University SCIENCE A, 8(5):707-711.

[19] Zawadzki, J., Wiśniewski, M., Skowrońska, K., 2003. Heterogeneous reactions of NO₂ and NO-O₂ on the surface of carbons. Carbon, 41(2):235-246.