镨铽掺杂铈锆复合氧化物的氧缓冲作用-中国有色金属学报.PDF

18 9 2008 9 Vol.18 No.9 The Chinese Journal of Nonferrous Metals Sep. 2008 1004-0609(2008)09-1742-06 1 1 2 (1. 710021 2. 100081) −Ce Zr O Ce Zr Pr O Ce Zr Tb O (x=0.05, 0.10, 0.6 0.4 2 0.6 0.35 0.05 2−y 0.6 0.4−x x 2−y 0.15) PrTbCOC H NOC H 3 6 3 6 C H 3 6 K O 643.36 TQ 426.96 A Oxygen buffering capacity of Pr/Tb doped CeO -ZrO mixed oxides 2 2 1 1 2 FAN Guo-dong , ZHANG Zhao , FENG Chang-gen (1. College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; 2. State Key Laboratory of Prevention and Control of Explosion Disasters, Beijing Institute of Technology, Beijing 100081, China) Abstract: The three-way catalysts (TWCs) promoters Ce Zr O , Ce Zr Pr O and Ce Zr Tb O (x=0.05, 0.6 0.4 2 0.6 0.35 0.05 2-y 0.6 0.4−x x 2−y 0.10, 0.15) were prepared by sol-gel method, and the catalytic performance was measured for the fully formulated Pt, Rh and Pd TWCs (high ratio of Pd) containing this