High Faradaic Yields of Non-Faradaic Electrochemical Modification of Catalytic Activity of Propane Oxidation at Pt-YSZ

被引：1
|
作者：
Bumroongsakulsawat, Palang [1 ]
Yindee, Sopawan [1 ]
Vanalabhpatana, Parichatr [2 ]
Assabumrungrat, Suttichai [1 ]
机构：
[1] Chulalongkorn Univ, Dept Chem Engn, Ctr Excellence Catalysis & Catalyt React Engn, Fac Engn, Bangkok 10330, Thailand
[2] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2016年 / 163卷 / 13期
关键词：
TETRAAMMINE IMPREGNATION; PROMOTION; ELECTRODES; COMBUSTION; PT/YSZ; MEMBRANE; ZIRCONIA; SILVER; RULES; FILMS;
D O I：
10.1149/2.0741613jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Non-faradaic Electrochemical Modification of Catalytic Activity (NEMCA) of propane oxidation at Pt dispersed on yttria-stabilized zirconia (YSZ) discs by strong electrostatic adsorption (SEA) and wet impregnation (WI) in wireless configuration was studied and compared. With a stoichiometric gas mixture of propane and oxygen diluted in helium, an exceptionally large faradaic yield of 5.2 x 10(4) was achieved from a cell prepared by SEA at a reaction temperature of 200 degrees C and a cell voltage of 6 V, compared to a smaller value of 1.0 x 10(4) obtained from a cell prepared by WI. A conceptual mechanism explaining the dependence of the faradaic yields and the rate enhancement ratios on Pt particle sizes is proposed. (C) 2016 The Electrochemical Society. All rights reserved.
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页码：E341 / E343
页数：3
相关论文
共 36 条
  • [1] Non-faradaic electrochemical modification of the catalytic activity for propane combustion of Pt/YSZ and Rh/YSZ catalyst-electrodes
    Bebelis, S.
    Kotsionopoulos, N.
    [J]. SOLID STATE IONICS, 2006, 177 (26-32) : 2205 - 2209
  • [2] NON-FARADAIC ELECTROCHEMICAL MODIFICATION OF CATALYTIC ACTIVITY
    VAYENAS, CG
    BEBELIS, S
    NEOPHYTIDES, S
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (18): : 5083 - 5085
  • [3] Non-faradaic electrochemical modification of catalytic activity .11. Ethane oxidation on Pt
    Kaloyannis, A
    Vayenas, CG
    [J]. JOURNAL OF CATALYSIS, 1997, 171 (01) : 148 - 159
  • [4] Non-Faradaic electrochemical modification of catalytic activity - 12. Propylene oxidation on Pt
    Kaloyannis, A
    Vayenas, CG
    [J]. JOURNAL OF CATALYSIS, 1999, 182 (01) : 37 - 47
  • [5] Effect of non-Faradaic electrochemical modification of catalytic activity
    Belyaev, VD
    Politova, TI
    Sobyanin, VA
    [J]. SOLID STATE IONICS, 2000, 136 : 721 - 725
  • [6] ORIGIN OF NON-FARADAIC ELECTROCHEMICAL MODIFICATION OF CATALYTIC ACTIVITY
    LADAS, S
    KENNOU, S
    BEBELIS, S
    VAYENAS, CG
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (35): : 8845 - 8848
  • [7] NON-FARADAIC ELECTROCHEMICAL MODIFICATION OF CATALYTIC ACTIVITY .1. THE CASE OF ETHYLENE OXIDATION ON PT
    BEBELIS, S
    VAYENAS, CG
    [J]. JOURNAL OF CATALYSIS, 1989, 118 (01) : 125 - 146
  • [8] NON-FARADAIC ELECTROCHEMICAL MODIFICATION OF CATALYTIC ACTIVITY .3. THE CASE OF METHANOL OXIDATION ON PT
    VAYENAS, CG
    NEOPHYTIDES, S
    [J]. JOURNAL OF CATALYSIS, 1991, 127 (02) : 645 - 664
  • [9] ELECTROCHEMICAL PROMOTION IN CATALYSIS - NON-FARADAIC ELECTROCHEMICAL MODIFICATION OF CATALYTIC ACTIVITY
    VAYENAS, CG
    LADAS, S
    BEBELIS, S
    YENTEKAKIS, IV
    NEOPHYTIDES, S
    YI, J
    KARAVASILIS, C
    PLIANGOS, C
    [J]. ELECTROCHIMICA ACTA, 1994, 39 (11-12) : 1849 - 1855
  • [10] Non-faradaic electrochemical modification of the catalytic activity of Pt for H-2 oxidation in aqueous alkaline media
    Neophytides, SG
    Tsiplakides, D
    Stonehart, P
    Jaksic, M
    Vayenas, CG
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (35): : 14803 - 14814
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