Electrochemical promotion of propane oxidation over Pd, Ir, and Ru catalyst-electrodes deposited on YSZ

被引：7
|
作者：
Peng-ont, S. [1 ,2 ]
Souentie, S. [1 ]
Assabumrungrat, S. [2 ]
Praserthdam, P. [2 ]
Brosda, S. [1 ]
Vayenas, C. G. [1 ]
机构：
[1] Univ Patras, Dept Chem Engn, LCEP, Patras 26504, Greece
[2] Chulalongkorn Univ, Fac Engn, Ctr Excellence Catalysis & Catalyt React Engn, Dept Chem Engn, Bangkok, Thailand
来源：
IONICS | 2013年 / 19卷 / 12期
关键词：
Propane oxidation; Electrochemical promotion; EPOC; NEMCA; Pd; Ir; Ru; Catalyst-electrode; Yttria-stabilized zirconia; GAS-PHASE COMBUSTION; CHEMICAL PROMOTION; PT/YSZ; ETHYLENE; METHANE; RULES; FILMS;
D O I：
10.1007/s11581-013-0931-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of electrochemical promotion of catalysis was investigated for the oxidation of propane using Pd, Ir, and Ru catalyst-electrodes sputter-deposited on YSZ disks in the temperature range of 250-450 A degrees C. Electrophobic type behavior was observed, i.e., the catalytic reaction rate was found to increase with catalyst potential. The observed rate changes under polarization were strongly non-Faradaic and exceeded under anodic potential application the electrocatalytic rate of O2- supply to the catalyst surface, I/2F, by up to a factor of 250 for Pd, 125 for Ir, and 15 for Ru catalyst-electrodes.
引用
收藏
页码：1705 / 1714
页数：10
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