Evaluation of Cr-Tolerance of the Sr2Fe1.5Mo0.5O6−δ Cathode for Solid Oxide Fuel Cells
Source abstract
Abstract
Sr2Fe1.5Mo0.5O6−δ (SFM) is a promising electrode material recently studied for intermediate temperature solid oxide fuel cells (IT-SOFCs). In this work, Cr-tolerance of SFM has been systematically assessed. Due to the presence of Sr at the A-site, SFM has been found to be vulnerable to Cr species that resulted from the metallic interconnects. The main product of Cr-poisoning for SFM is SrCrO4 deposited on the SFM surface. Furthermore, the Cr-poisoning mechanism of the SFM material has been evaluated both experimentally and thermodynamically. To enhance Cr-tolerance of SFM, LaCoO3−δ-infiltrated SFM (LC@SFM) has been developed. LC hinders the direct contact of SFM with Cr species, and LC@SFM has significantly enhanced Cr-tolerance compared with SFM. This study provides valuable guidance for the wide application of the SFM cathode in IT-SOFCs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
Center for Fuel Cell Innovation, School of Materials Science and Engineering, State Key Lab of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
Smart Energy Research Center, School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, Hebei 300384, China
Funding
Ministry of Science and Technology of the People's Republic of China · Office of Fossil Energy
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