Experiments with button-type solid oxide fuel cells using electrochemical impedance spectroscopy to detect carbon formation

Journal article (2019)

Authors

J.N. Stam Energy Technology - Mechanical, Maritime and Materials Engineering
P.V. Aravind Energy Technology - Mechanical, Maritime and Materials Engineering
Research Group
Energy Technology (Mechanical, Maritime and Materials Engineering) (TU Delft)
More Info
expand_more

Published Date

2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Energy Technology

Abstract

Carbon deposition is one of the operational problems in hydrocarbon fueled solid oxide fuel cells (SOFCs). Using electrochemical impedance spectroscopy (EIS), experiments are performed to detect carbon formation on button-type cermet Ni-YSZ/YSZ/LSM SOFCs. A mass spectrometer (MS) is used to monitor the outlet gas composition, and the distribution of relaxation times (DRT) is computed to analyse the measured impedance. This work presents preliminary results obtained for H2CH4 mixtures at OCV and 800oC, showing an increase in the mid-frequency range (10-3 and 10-2 s) for methane concentrations exceeding 10 vol%.

Files

ECS_Trans._2019_Stam_815_24.pd... (pdf)
(pdf | 1.93 Mb)
Unknown license

Download not available