@inproceedings{79ed489faf8242418fbda3683adc944d,
title = "Lifetime and performance prediction of SOFC anodes operated with trace amounts of hydrogen sulfide",
abstract = "An elementary kinetic model is developed to predict the influence of sulfur on Ni/YSZ anodes of solid oxide fuel cells (SOFC) performance. A multi-step reaction mechanism describing the formation and oxidation of sulfur on the Ni surface is coupled with gas transport in the channel and porous phase, and charge-transfer processes. A thermodynamic and kinetic data set of sulfur formation and oxidation is derived based upon various literature sources including a coverage-dependent description of the enthalpy of surface-adsorbed sulfur. The validity of the model is demonstrated on two SOFC operation modes, namely H2/H2O/H2S and CH4/H2/H2O/H2S fuel mixtures, at different operating conditions using various electrochemical literature experiments. The first concern is the influence of adsorbed sulfur on chargetransfer processes and the second concern is the effect of adsorbed sulfur on complex methane reforming chemistry. The results reveal that sulfur surface coverage increases with current density demonstrating a low sulfur oxidation rate.",
author = "M. Riegraf and G. Schiller and R. Costa and Friedrich, \{K. A.\} and A. Latz and V. Yurkiv",
note = "Publisher Copyright: {\textcopyright} The Electrochemical Society.; 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage ; Conference date: 26-07-2015 Through 31-07-2015",
year = "2015",
doi = "10.1149/06801.1373ecst",
language = "English (US)",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "1",
pages = "1373--1382",
editor = "Singhal, \{S. C.\} and K. Eguchi",
booktitle = "Solid Oxide Fuel Cells 14, SOFC 2015",
edition = "1",
}