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Fabrication and operation of flow‐through tubular SOFCs for electric power and synthesis gas cogeneration from methane
Author(s) -
Shi Huangang,
Su Chao,
Yang Guangming,
Ran Ran,
Hao Yong,
Tade Moses O.,
Shao Zongping
Publication year - 2014
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14312
Subject(s) - methane , cathode , anode , power density , materials science , voltage , electrode , solid oxide fuel cell , chemical engineering , fabrication , analytical chemistry (journal) , chemistry , nuclear engineering , electrical engineering , power (physics) , engineering , organic chemistry , thermodynamics , medicine , physics , alternative medicine , pathology
Flow‐through type tubular solid oxide fuel cells were successfully fabricated and operated with a single‐chamber configuration for realizing the simultaneous generation of electric power and synthesis gas from methane by integrating a downstream catalyst into the fuel cell reactor. A new operation mode, which completely eliminated the gas diffusion between cathode side and anode side, is proposed. The cell showed high open‐circuit voltages of 1.02–1.08 V at the furnace temperature range of 650–800°C when operating on CH 4 ‐O 2 gas mixture at a molar ratio of 2:1. A peak power density of approximately 300 mW cm −2 and a maximum power output of 1.5 W were achieved for a single cell with an effective cathode geometric surface area of 5.4 cm 2 at the furnace temperature of 750°C. The in‐situ initialization of the cell using CH 4 ‐O 2 gas mixture was also realized via applying an effective catalyst into the tubular cell. © 2013 American Institute of Chemical Engineers AIChE J , 60: 1036–1044, 2014