Application of silver in microtubular solid oxide fuel cells

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Application of silver in microtubular solid oxide fuel cells. / Majewski, Artur; Dhir, Aman.

In: Materials for Renewable and Sustainable Energy, Vol. 7, 16, 08.2018.

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@article{30fdf50d59ee488090fd05cd0b286f1e,
title = "Application of silver in microtubular solid oxide fuel cells",
abstract = "In this paper, the behaviour of silver as cathode conductive material, interconnect wire, and sealing for anode lead connection for microtubular solid oxide fuel cells (μSOFC) is reported. The changes in silver morphology are examined by scanning electron microscopy on cells that had been operated under reformed methane. It is found that using silver in an solid oxide fuel cell (SOFC) stack can improve the cell performance. However, it is also concluded that silver may be responsible for cell degradation. This report brings together and explains all the known problems with application of silver for SOFCs. The results show that silver is unstable in interconnect and in cathode environments. It is found that the process of cell passivation/activation promotes silver migration. The difference in thermal expansion of silver and sealant results in damage to the glass. It is concluded that when silver is exposed to a dual atmosphere condition, high levels of porosity formation is seen in the dense silver interconnect. The relevance of application ofsilver in SOFC stacks is discussed.",
keywords = "Silver, SOFC, Microtubular SOFC, SOFC stacks",
author = "Artur Majewski and Aman Dhir",
year = "2018",
month = aug,
doi = "10.1007/s40243-018-0123-y",
language = "English",
volume = "7",
journal = "Materials for Renewable and Sustainable Energy",
issn = "2194-1459",
publisher = "Springer",

}

RIS

TY - JOUR

T1 - Application of silver in microtubular solid oxide fuel cells

AU - Majewski, Artur

AU - Dhir, Aman

PY - 2018/8

Y1 - 2018/8

N2 - In this paper, the behaviour of silver as cathode conductive material, interconnect wire, and sealing for anode lead connection for microtubular solid oxide fuel cells (μSOFC) is reported. The changes in silver morphology are examined by scanning electron microscopy on cells that had been operated under reformed methane. It is found that using silver in an solid oxide fuel cell (SOFC) stack can improve the cell performance. However, it is also concluded that silver may be responsible for cell degradation. This report brings together and explains all the known problems with application of silver for SOFCs. The results show that silver is unstable in interconnect and in cathode environments. It is found that the process of cell passivation/activation promotes silver migration. The difference in thermal expansion of silver and sealant results in damage to the glass. It is concluded that when silver is exposed to a dual atmosphere condition, high levels of porosity formation is seen in the dense silver interconnect. The relevance of application ofsilver in SOFC stacks is discussed.

AB - In this paper, the behaviour of silver as cathode conductive material, interconnect wire, and sealing for anode lead connection for microtubular solid oxide fuel cells (μSOFC) is reported. The changes in silver morphology are examined by scanning electron microscopy on cells that had been operated under reformed methane. It is found that using silver in an solid oxide fuel cell (SOFC) stack can improve the cell performance. However, it is also concluded that silver may be responsible for cell degradation. This report brings together and explains all the known problems with application of silver for SOFCs. The results show that silver is unstable in interconnect and in cathode environments. It is found that the process of cell passivation/activation promotes silver migration. The difference in thermal expansion of silver and sealant results in damage to the glass. It is concluded that when silver is exposed to a dual atmosphere condition, high levels of porosity formation is seen in the dense silver interconnect. The relevance of application ofsilver in SOFC stacks is discussed.

KW - Silver

KW - SOFC

KW - Microtubular SOFC

KW - SOFC stacks

U2 - 10.1007/s40243-018-0123-y

DO - 10.1007/s40243-018-0123-y

M3 - Article

VL - 7

JO - Materials for Renewable and Sustainable Energy

JF - Materials for Renewable and Sustainable Energy

SN - 2194-1459

M1 - 16

ER -