文献类型：期刊文献

英文题名：NiMo-calcium-doped ceria catalysts for inert-substrate-supported tubular solid oxide fuel cells running on isooctane

作者：Zhao, Kai[1,2];Cheng, Gang[3];Hu, Shuozhen[4];Ha, Su[5];Norton, M. Grant[5,6];Chen, Min[1,2];Chen, Dongchu[1,2];Xu, Qing[7];Kim, Bok-Hee[8]

机构：[1]Foshan Univ, Sch Mat Sci & Hydrogen Energy, Foshan 528000, Peoples R China;[2]Foshan Univ, Guangdong Key Lab Hydrogen Energy Technol, Foshan 528000, Peoples R China;[3]Wuhan Inst Technol, Sch Chem & Environm Engn, Xiongchu Ave, Wuhan 430073, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[5]Washington State Univ, Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA;[6]Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA;[7]Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan, Peoples R China;[8]Jeonbuk Natl Univ, Div Adv Mat Engn, Jeonbuk 561756, South Korea

年份：2020

卷号：45

期号：53

起止页码：29367

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20203309059740);WOS:【SCI-EXPANDED(收录号:WOS:000579568300096)】；

基金：The authors acknowledge the support from Guangdong Basic and Applied Basic Research Foundation (No: 2019A1515110237) and Young Creative Talents Project of the Guangdong Provincial Department of Education (No: 2019KQNCX166). Grateful acknowledgments are extended to the Nature Science Foundation of China (No: 51872047), Nature Science Foundation of Guangdong Province (No: 2018A030313779), and Key Project of Guangdong Provincial Department of Education (No: 2019KZDXM039).

语种：英文

外文关键词：NiMo-Based catalyst; Ce1-xCaxO2-delta ceramic support; Internal reforming; Solid oxide fuel cell; Isooctane fuel

摘要：A calcium-doped ceria (Ce1-xCaxO2-delta, 0 <= x <= 0.3) has been applied as a ceramic support in NiMo-based catalysts for an internal reforming tubular solid oxide fuel cell running on isooctane. Introducing calcium into the CeO2-based ceramic was found to improveconductivity of Ce1-xCaxO2-delta. The Ce0.9Ca0.1O2-delta (x = 0.10) sample exhibited an optimum conductivity of 0.045 S cm(-1) at 750 degrees C. The transport of oxygen ions in Ce1-xCaxO2-delta promoted the catalytic partial oxidation of isooctane in the NiMo-Ce1-xCaxO2-delta catalyst, which increased the fuel conversion as well as H-2 and CO yields. As a result, the NiMo-Ce0.9Ca0.1O2-delta (x = 0.10) catalyst exhibited a high isooctane conversion of 98%, and the H-2 and CO yields achieved 74% and 83%, respectively, for reforming of isooctane and air at the O/C ratio of 1.0 at 750 degrees C. Furthermore, the NiMo-Ce0.9Ca0.1O2-delta catalyst has been applied as an internal reforming layer for an inert-substrate-supported tubular solid oxide fuel cell running on isooctane/air. Due to its high reforming activity, the single cell presented an initial maximum power density of 355 mW cm(-2) in isooctane/air at 750 degrees C and displayed stable electrochemical performance during similar to 30 h operation. These results demonstrated the application feasibility of the NiMo-Ce0.9Ca0.1O2-delta catalyst for direct internal reforming solid oxide fuel cells running on isooctane/air. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.