固体氧化物燃料电池电极中毒的热力学研究

Kevin Huang

doi:10.1007/s12613-023-2783-6

Volume 31 Issue 6

Jun. 2024

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文章导航 > 矿物冶金与材料学报（英文） > 2024 > 31(6): 1449-1455

Kevin Huang, A thermodynamic perspective on electrode poisoning in solid oxide fuel cells, Int. J. Miner. Metall. Mater., 31(2024), No. 6, pp. 1449-1455. https://doi.org/10.1007/s12613-023-2783-6

Cite this article as:

Kevin Huang, A thermodynamic perspective on electrode poisoning in solid oxide fuel cells, Int. J. Miner. Metall. Mater., 31(2024), No. 6, pp. 1449-1455. https://doi.org/10.1007/s12613-023-2783-6

Kevin Huang, A thermodynamic perspective on electrode poisoning in solid oxide fuel cells, Int. J. Miner. Metall. Mater., 31(2024), No. 6, pp. 1449-1455. https://doi.org/10.1007/s12613-023-2783-6

Citation:

Kevin Huang, A thermodynamic perspective on electrode poisoning in solid oxide fuel cells, Int. J. Miner. Metall. Mater., 31(2024), No. 6, pp. 1449-1455. https://doi.org/10.1007/s12613-023-2783-6

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研究论文Open Access

固体氧化物燃料电池电极中毒的热力学研究

Kevin Huang

Department of Mechanical Engineering, University of South Carolina, Columbia, USA

通讯作者:
Kevin Huang E-mail: huang46@cec.sc.edu

文章亮点

Open Access

中文摘要

清洁高效固体氧化物燃料电池(SOFC)技术商业化面临的一个关键挑战是与电池组件和化学原料相关的各种降解机制导致电池堆寿命不足。电池组件相关降解是指电池材料在工作条件下的热/化学/电化学恶化，而后者涉及氧化剂(空气)和还原剂(燃料)原料中的杂质。本文从热力学角度对SOFCs中杂质诱导的降解机制进行了研究。讨论的重点是利用热力学分析来阐明阴极中Cr、CO₂、H₂O和SO₂等杂质的中毒机制，以及阳极中S(或H₂S)、SiO₂和P₂(或PH₃)等杂质的中毒机制。作者希望其提出的基本观点可以为寻找更好的技术解决方案提供理论基础，以解决关键的退化挑战。

关键词:

杂质;
空气;
燃料;
反应;
活跃性

Research ArticleOpen Access

A thermodynamic perspective on electrode poisoning in solid oxide fuel cells

Kevin Huang

+ Author Affiliations

Abstract

Abstract

A critical challenge to the commercialization of clean and high-efficiency solid oxide fuel cell (SOFC) technology is the insufficient stack lifespan caused by a variety of degradation mechanisms, which are associated with cell components and chemical feedstocks. Cell components related degradation refers to thermal/chemical/electrochemical deterioration of cell materials under operating conditions, whereas the latter regards impurities in feedstocks of oxidant (air) and reductant (fuel). This article provides a thermodynamic perspective on the understanding of the impurities-induced degradation mechanisms in SOFCs. The discussion focuses on using thermodynamic analysis to elucidate poisoning mechanisms in cathodes by impurity species such as Cr, CO₂, H₂O, and SO₂ and in the anode by species such as S (or H₂S), SiO₂, and P₂ (or PH₃). The author hopes the presented fundamental insights can provide a theoretical foundation for searching for better technical solutions to address the critical degradation challenges.
- impurities;
- air;
- fuel;
- reaction;
- activity

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