Methane steam reforming reaction in solid oxide fuel cells: Influence of electrochemical reaction and anode thickness

JOURNAL OF POWER SOURCES

卷:507

Article

Fan, Liyuan¹  Mokhov, Anatoli²  Saadabadi, S. Ali³  Brandon, Nigel⁴  Aravind, Purushothaman Vellayani² 

[1] James Cook Univ, Coll Sci & Engn, 1 James Cook Dr, Townsville, Qld 4811, Australia

[2] Univ Groningen, Energy & Sustainabil Res Inst Groningen, NL-9700 AB Groningen, Netherlands

[3] Delft Univ Technol, Proc & Energy, 3mE, Leeghwaterstr 39, NL-2628 CB Delft, Netherlands

[4] Imperial Coll London, Fac Engn, Dept Earth Sci & Engn, South Kensington Campus, London SW7 2AZ, England

关键词: Solid oxide fuel cells;    Ni-YSZ;    Reforming kinetics;    Anode thickness;    Electrochemical reaction;   

DOI  :  10.1016/j.jpowsour.2021.230276

来源: Elsevier

【 摘 要 】

The influence of operation temperature, inlet gas composition, current density and the anode thickness on the methane steam reforming reaction over nickel yttria-stabilized zirconia anodes was experimentally studied in solid oxide fuel cells. The experimental results were analyzed using data fitting in Power-Law and Langmuir-Hinshelwood kinetic models. Similar trends of dependence of methane and steam partial pressures were observed in both models. The methane reaction order is positive. Negative influence of steam partial pressure on the methane steam reforming reaction rate are found. The electrochemical reaction and anode thickness affect the reforming kinetics parameters. The anodes thickness shows particular influences on the steam reaction order, and the activation energy when a current is produced. The model evaluation suggests that the two models are comparable and the extra parameters within the Langmuir-Hinshelwood kinetic model are contributing to the lower mean absolute percentage error and higher coefficient of determination R-2.

【 授权许可】

Free