Nitrogen doping of activated carbon loading Fe2O3 and activity in carbon-nitric oxide reaction

作者:Wan Xian kai; Zou Xue quan; Shi Hui xiang*; Wang Da hui
来源:Journal of Zhejiang University-Science A(Applied Physics & Engineering), 2007, 8(5): 707-711.
DOI:10.1631/jzus.2007.A0707

摘要

Nitrogen doping of activated carbon loading Fe2O3 was performed by annealing in ammonia, and the activity of the modified carbon for NO reduction was studied in the presence of oxygen. Results show that Fe2O3 enhances the amount of surface oxygen complexes and facilitates nitrogen incorporation in the carbon, especially in the form of pyridinic nitrogen. The modified carbon shows excellent activity for NO reduction in the low temperature regime (<500 degrees C) because of the cooperative effect of Fe2O3 and the surface nitrogen species.