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Title: Thermodynamic and experimental assessment of proton conducting solid oxide fuel cells with internal methane steam reforming

Operating proton conducting solid oxide fuel cells (H-SOFCs) with hydrocarbon as fuel remains a challenge because of the instability of the anode and electrolyte materials in a CO 2/H 2O-containing atmosphere and the catalytic activity and coking resistance of the anode for direct oxidation of hydrocarbons. Therefore, in this paper, the steam reforming of methane (SRM, an endothermic process) is integrated into the H-SOFCs (fuel cell process, an exothermic process) for internally converting hydrocarbon to hydrogen and increasing energy efficiency of H-SOFCs. Moreover, a proton-conducting zirconate oxide (BaZr 0.8Y 0.2O 3, BZY), which is stable in a CO 2/H 2O-containing atmosphere, is applied as an electrolyte and anode material of H-SOFCs. The operation of BZY-based H-SOFCs with internal SRM is assessed by thermodynamic calculation and experiments for the first time. The catalytic activity and coking resistance of the Ni-BZY anode for SRM are investigated thermodynamically and experimentally. Finally, the results demonstrate that the Ni-BZY anode possesses reasonable catalytic activity as well as good coking resistance for SRM at a temperature as low as 550 °C. Then, the electrochemical performance and durability of H-SOFCs operated with internal SRM are comprehensively studied from 550 °C to 700 °C.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [4] ;  [1]
  1. Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering
  2. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemical Engineering
  3. Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering; Yancheng Inst. of Technology (China). Jiangsu Collaborative Innovation Center for Ecological Building Materials and Environmental Protection Equipments
  4. Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering; Wuhan Univ. (China). School of Power and Mechanical Engineering
Publication Date:
Grant/Contract Number:
FE0031176; DMR-1210792; 21406190
Type:
Accepted Manuscript
Journal Name:
Applied Energy
Additional Journal Information:
Journal Volume: 224; Journal ID: ISSN 0306-2619
Publisher:
Elsevier
Research Org:
Univ. of South Carolina, Columbia, SC (United States); Yancheng Inst. of Technology (China); Wuhan Univ. (China)
Sponsoring Org:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF); National Natural Science Foundation of China (NNSFC)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; solid oxide fuel cells; proton conducting ceramics; steam reforming of methane
OSTI Identifier:
1462310

Lei, Libin, Keels, Jayson M., Tao, Zetian, Zhang, Jihao, and Chen, Fanglin. Thermodynamic and experimental assessment of proton conducting solid oxide fuel cells with internal methane steam reforming. United States: N. p., Web. doi:10.1016/j.apenergy.2018.04.062.
Lei, Libin, Keels, Jayson M., Tao, Zetian, Zhang, Jihao, & Chen, Fanglin. Thermodynamic and experimental assessment of proton conducting solid oxide fuel cells with internal methane steam reforming. United States. doi:10.1016/j.apenergy.2018.04.062.
Lei, Libin, Keels, Jayson M., Tao, Zetian, Zhang, Jihao, and Chen, Fanglin. 2018. "Thermodynamic and experimental assessment of proton conducting solid oxide fuel cells with internal methane steam reforming". United States. doi:10.1016/j.apenergy.2018.04.062.
@article{osti_1462310,
title = {Thermodynamic and experimental assessment of proton conducting solid oxide fuel cells with internal methane steam reforming},
author = {Lei, Libin and Keels, Jayson M. and Tao, Zetian and Zhang, Jihao and Chen, Fanglin},
abstractNote = {Operating proton conducting solid oxide fuel cells (H-SOFCs) with hydrocarbon as fuel remains a challenge because of the instability of the anode and electrolyte materials in a CO2/H2O-containing atmosphere and the catalytic activity and coking resistance of the anode for direct oxidation of hydrocarbons. Therefore, in this paper, the steam reforming of methane (SRM, an endothermic process) is integrated into the H-SOFCs (fuel cell process, an exothermic process) for internally converting hydrocarbon to hydrogen and increasing energy efficiency of H-SOFCs. Moreover, a proton-conducting zirconate oxide (BaZr0.8Y0.2O3, BZY), which is stable in a CO2/H2O-containing atmosphere, is applied as an electrolyte and anode material of H-SOFCs. The operation of BZY-based H-SOFCs with internal SRM is assessed by thermodynamic calculation and experiments for the first time. The catalytic activity and coking resistance of the Ni-BZY anode for SRM are investigated thermodynamically and experimentally. Finally, the results demonstrate that the Ni-BZY anode possesses reasonable catalytic activity as well as good coking resistance for SRM at a temperature as low as 550 °C. Then, the electrochemical performance and durability of H-SOFCs operated with internal SRM are comprehensively studied from 550 °C to 700 °C.},
doi = {10.1016/j.apenergy.2018.04.062},
journal = {Applied Energy},
number = ,
volume = 224,
place = {United States},
year = {2018},
month = {5}
}