Manufacturing of Γ-LiAlO2 matrix for molten carbonate fuel cell by high-energy milling

Robert Baron, Tomasz Wejrzanowski, Jarosław Milewski, Łukasz Szabłowski, Arkadiusz Szczęśniak, Kuan Zong Fung

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

Molten carbonate fuel cells (MCFCs) are promising high temperature power generating devices. However, unlike solid oxide fuel cells (SOFCs) they utilize a liquid electrolyte which must be immobilized in a porous matrix. In this paper, a slurry composition for lithium aluminate (γ-LiAlO2) matrix was developed and green matrices were subsequently formed by the tape casting method. In order to achieve the desired structure of the matrix (pore size, porosity) γ-LiAlO2 powder was milled in a planetary ball mill for 18 h with a solvent, dispersant and defoamer. After this step, other ingredients were added, including a binder and plasticizer to obtain optimal rheology of the slurry. Cell tests confirmed optimal performance of the matrix compared to the third party reference γ-LiAlO2 matrices. Burned out matrix was characterized by scanning electron microscopy (SEM) and laser diffraction in order to determine the γ-LiAlO2 powder particle size and morphology. The results show that high-energy milling enabled a fine pore structure and high specific surface area of the matrix to be obtained in a relatively short time, compared to conventional fabrication routes. The matrix structure obtained within this study is suitable for high performance operation of MCFC.

原文English
頁(從 - 到)6696-6700
頁數5
期刊International Journal of Hydrogen Energy
43
發行號13
DOIs
出版狀態Published - 2018 3月 29

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 燃料技術
  • 凝聚態物理學
  • 能源工程與電力技術

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