Paper Title:
Synthesis and Characterization of Nanoscale CeO2 Catalyst for deNOx
  Abstract

Hydrothermal and precipitation methods have been applied to synthesize nanoscale CeO2 catalysts for selective catalytic reduction of NO with hydrocarbon under oxygen-rich condition. The former procedure has the advantage of enhancing the hydrothermal stability of nanomaterial. BET results show that their surface areas are about 30-80 m2/g. Based on TEM results, hydrothermally prepared CeO2 shows very uniform grain shaped particles with size around 10-20 nanometers. Its thermal stability up to 1200°C has been confirmed by in-situ XRD. Furthermore, deNOx reaction with propene as reducing agent in the presence of 5% oxygen has been carried out to compare catalysts prepared by the above two methods. Results show that hydrothermally prepared catalyst is more active than the one prepared by precipitation method. The latter one lost half of its activity in the presence of 5% water vapor, while the former one could stand up to 10% water vapor in the gas mixture without losing much activity.

  Info
Edited by
M. Gupta and Christina Y.H. Lim
Pages
95-98
DOI
10.4028/www.scientific.net/JMNM.23.95
Citation
S. Kawi, Y.P. Tang, K. Hidajat, L.E. Yu, "Synthesis and Characterization of Nanoscale CeO2 Catalyst for deNOx", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 95-98, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Peng Fei Yang, Ji Cheng Zhou, Zhe Wang
Abstract:The Zr-Cu-Ce/ZSM-5 catalysts prepared by the simultaneous ion-exchange showed high activity for NO decomposition in the presence of O2, the...
1735
Authors: Lei Wang, Guang Sheng Guo, Fu Bo Gu, Zhi Hua Wang
Abstract:Three different CeO2 sphere nanomaterials (hollow sphere, flowerlike sphere, spherical cluster) were controllably synthesized by carbon...
428
Authors: Yang Yi Shen, Ming Qiao Zhu, Jin Pei Du, Yang Yang Yang, Yue Tang
Chapter 8: Electrochemical Engineering
Abstract:A series of supported catalysts Co3O4/SiO2 were prepared by deposition precipitation method. ICP-AES, XRD and TEM data revealed that the...
1699
Authors: Ying Hua Li, Fei Zhao, Ji Ying Zou, Hui Liu, Yu Zhang
Chapter 1: Environmental Materials and Processing Technology
Abstract:The performance of Pd/TiO2/Al2O3 catalyst for the NOx reduction in the CO-rich conditions of...
52