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High performance Mn1.3Co1.3Cu0.4O4 spinel based composite cathodes for intermediate temperature solid oxide fuel cells

Title
High performance Mn1.3Co1.3Cu0.4O4 spinel based composite cathodes for intermediate temperature solid oxide fuel cells
Authors
Thaheem, ImdadullahKim, Kyeong JoonLee, Jong JunJoh, Dong WooJeong, IncheolLee, Kang Taek
DGIST Authors
Lee, Kang Taek
Issue Date
2019-09
Citation
Journal of Materials Chemistry A, 7(34), 19696-19703
Type
Article
Article Type
Article
Keywords
CUZNCOCATALYSTSSOFC
ISSN
2050-7488
Abstract
Herein, we developed a Mn1.3Co1.3Cu0.4O4 (MCCO) spinel for use as a new ORR catalyst for intermediate temperature solid oxide fuel cell (SOFC) applications. The addition of Cu to the (Mn,Co)(3)O-4 spinel effectively promoted the oxidation states of Mn ions, which were mostly positioned at octahedral sites. This effect facilitated small polaron hopping with a narrow band gap, resulting in high electrical conductivity of MCCO. An SOFC employing the MCCO-Sc0.1Zr0.89Ce0.01O1.95 composite cathode yielded extraordinarily high power-output values of 1.92 and 1.38 W cm(-2), at 800 and 700 degrees C, respectively. To the best of our knowledge, this result indicates the best performance among all SOFCs with any spinel-based cathodes to date.
URI
http://hdl.handle.net/20.500.11750/10658
DOI
10.1039/c9ta07069a
Publisher
Royal Society of Chemistry
Related Researcher
  • Author Lee, Kang Taek AECSL(Advanced Energy Conversion and Storage Lab)
  • Research Interests Advanced energy conversion and storage systems; Solid-state Electrochemical Energy Devices; All solid-state batteries; low-temperature solid oxide fuel cells(SOFCs); 신 에너지 변환 및 저장 시스템; Solid-state Electrochemical Energy Devices; 차세대 전고체 이차전지(solid-state batteries) 및 저온화 고체산화물 연료전지(LT-SOFCs)
Files:
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Collection:
Department of Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)1. Journal Articles


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