Effect of CeO2 on oxidation and electrical behaviors of ferritic stainless steel interconnects with Ni-Fe coatings

IMR OpenIR

	Effect of CeO2 on oxidation and electrical behaviors of ferritic stainless steel interconnects with Ni-Fe coatings
	You, PF; Zhang, X; Zhang, HL; Liu, HJ; Zeng, CL; Zhang, X (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
	2018-04-12
发表期刊	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN	0360-3199
卷号	43 期号:15 页码:7492-7500
摘要	Ferritic stainless steels are promising materials for application in interconnects of solid oxide fuel cells (SOFC). The present problems to be solved urgently for using ferritic stainless steels as interconnects are their rapid increase in electrical resistance and the cathode poisoning caused by evaporation of chromia. In the present study, the Ni-Fe and NiFe-CeO2 alloy coatings have been electro-deposited onto 430 stainless steels (430SS). During oxidation at 800 degrees C in air, an outer dense NiFe2O4 layer and an inner protective Cr2O3 layer have thermally grown on the coated samples. The NiFe2O4 layer retards the outward migration of chromium effectively. The addition of CeO2 reduces the growth rate of Cr2O3 and decreases the number of pores near the oxide scale/alloy interface. Moreover, a higher electrical conductivity has been achieved by the addition of CeO2. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.; Ferritic stainless steels are promising materials for application in interconnects of solid oxide fuel cells (SOFC). The present problems to be solved urgently for using ferritic stainless steels as interconnects are their rapid increase in electrical resistance and the cathode poisoning caused by evaporation of chromia. In the present study, the Ni-Fe and NiFe-CeO2 alloy coatings have been electro-deposited onto 430 stainless steels (430SS). During oxidation at 800 degrees C in air, an outer dense NiFe2O4 layer and an inner protective Cr2O3 layer have thermally grown on the coated samples. The NiFe2O4 layer retards the outward migration of chromium effectively. The addition of CeO2 reduces the growth rate of Cr2O3 and decreases the number of pores near the oxide scale/alloy interface. Moreover, a higher electrical conductivity has been achieved by the addition of CeO2. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
部门归属	[you, peng fei ; zhang, xue ; zhang, hai liang ; liu, hui jun ; zeng, chao liu] chinese acad sci, inst met res, lab corros & protect, 62 wencui rd, shenyang 110016, liaoning, peoples r china ; [you, peng fei ; zhang, hai liang] univ sci & technol china, sch mat sci & engn, 96 jinzhai rd, hefei 230026, anhui, peoples r china
关键词	Oxide Fuel-cell Reactive Element Metallic Interconnects Protective-coatings Alloy Oxidation Chromia Scales Spinel Growth Resistance Additions
学科领域	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
资助者	National Natural Science Foundation of china [51471179, 51601202]
收录类别	SCI
语种	英语
WOS记录号	WOS:000430519600031
引用统计	被引频次：44[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79368
专题	中国科学院金属研究所
通讯作者	Zhang, X (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	You, PF,Zhang, X,Zhang, HL,et al. Effect of CeO2 on oxidation and electrical behaviors of ferritic stainless steel interconnects with Ni-Fe coatings[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(15):7492-7500.
APA	You, PF,Zhang, X,Zhang, HL,Liu, HJ,Zeng, CL,&Zhang, X .(2018).Effect of CeO2 on oxidation and electrical behaviors of ferritic stainless steel interconnects with Ni-Fe coatings.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(15),7492-7500.
MLA	You, PF,et al."Effect of CeO2 on oxidation and electrical behaviors of ferritic stainless steel interconnects with Ni-Fe coatings".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.15(2018):7492-7500.