Enhanced electrocatalytic activity of SrFe0.9Nb0.1O3-δ through in-situ synthesis of Sr3Fe1.8Nb0.2O7-δ coating

doi:10.1016/j.ceramint.2024.05.106

	Enhanced electrocatalytic activity of SrFe0.9Nb0.1O3-δ through in-situ synthesis of Sr3Fe1.8Nb0.2O7-δ coating
	Geng, Chaoliang 1,2; Li, Mingming 3; Fang, Xinchen 4; Su, Hongyang 1; Zhang, Ziyun5 ; Bao, Di 6; Chen, Di 1; Cheng, Jigui 2
	2024
发表期刊	CERAMICS INTERNATIONAL (IF:5.1[JCR-2023],4.7[5-Year])
ISSN	0272-8842
EISSN	1873-3956
卷号	50 期号:18 页码:31752-31758
发表状态	已发表
DOI	10.1016/j.ceramint.2024.05.106
摘要	The influence of the heterogeneous interface is critical for the catalytic activity of the oxygen reduction reaction (ORR). This study demonstrates an enhancement of the electrocatalytic activity of the SrFe0.9Nb0.1O3-δ (SFN113) electrode through the construction of a SrFe0.9Nb0.1O3-δ-Sr3Fe1.8Nb0.2O7-δ (SFN113-SFN327) heterogeneous interface. By coating varying amounts of Sr(NO3)2 (0.1 g, 0.2 g and 0.3 g) on SFN113 (1 g), SFN113/327 composite electrodes with different amounts of triple conducting oxide SFN327 are in-situ synthesized by high temperature calcination. Electrical Conductivity Relaxation (ECR) tests show that SFN327 has superior oxygen surface exchange performance compared to SFN113, especially at lower temperatures. At 550 °C, the oxygen surface exchange parameter of SFN327 is 4.23 times higher than that of SFN113. Symmetric cell tests with SFN113/327\|\|BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb)\|\|SFN113/327 configuration and single cell tests with Ni-BCZYYb\|\|BCZYYb\|\|SFN113/327 configuration indicate that the SFN113/327 composite electrode with a mass ratio of 1:0.2 displays the best electrocatalytic performance, achieving a power output of 502 mW cm−2 at 700 °C. The work not only in-situ synthesizes the SFN113/327 triple conducting composite electrode, but also introduces a novel method for developing proton conducting electrode materials. © 2024
关键词	Barium compounds Catalyst activity Coatings Electrodes Iron compounds Niobium compounds Oxygen Strontium compounds Zirconium compounds Ceramic fuel cells Composites electrodes Conducting electrodes Electrocatalytic activity Heterogeneous interfaces Oxygen reduction reaction Oxygen surface exchange Protonic Protonic ceramic fuel cell Triple conducting electrode
URL	查看原文
收录类别	EI ; SCI
语种	英语
资助项目	National Key Research and Development Program of China[2022YFE0198500] ; China Postdoctoral Science Foundation[2023M741874] ; Open Funds of State Key Laboratory of Rare Earth Resource Utilization[RERU2022006]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001284372700001
出版者	Elsevier Ltd
EI入藏号	20242616316909
EI主题词	Electrolytic reduction
EI分类号	533.1 Ore Treatment ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 813.2 Coating Materials
原始文献类型	Article in Press
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/395985
专题	物质科学与技术学院_本科生物质科学与技术学院_博士生
通讯作者	Cheng, Jigui
作者单位	1.The Future Laboratory, Tsinghua University, Beijing; 100084, China 2.School of Materials Science and Engineering, Hefei University of Technology, Tunxi Road 193, Anhui, Hefei; 230009, China 3.Shenzhen MSU-BIT University, Shenzhen; 518172, China 4.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing; 100084, China 5.School of Physical Sciences and Technology, ShanghaiTech University, Shanghai; 201210, China 6.State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun; 130022, China
推荐引用方式 GB/T 7714	Geng, Chaoliang,Li, Mingming,Fang, Xinchen,et al. Enhanced electrocatalytic activity of SrFe0.9Nb0.1O3-δ through in-situ synthesis of Sr3Fe1.8Nb0.2O7-δ coating[J]. CERAMICS INTERNATIONAL,2024,50(18):31752-31758.
APA	Geng, Chaoliang.,Li, Mingming.,Fang, Xinchen.,Su, Hongyang.,Zhang, Ziyun.,...&Cheng, Jigui.(2024).Enhanced electrocatalytic activity of SrFe0.9Nb0.1O3-δ through in-situ synthesis of Sr3Fe1.8Nb0.2O7-δ coating.CERAMICS INTERNATIONAL,50(18),31752-31758.
MLA	Geng, Chaoliang,et al."Enhanced electrocatalytic activity of SrFe0.9Nb0.1O3-δ through in-situ synthesis of Sr3Fe1.8Nb0.2O7-δ coating".CERAMICS INTERNATIONAL 50.18(2024):31752-31758.