Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell
The hydrogen oxidation reaction mechanism at Nickel/Yttria-stabilised Zirconia (Ni/YSZ) anode of the solid oxide fuel cell (SOFC) is investigated using the reaction route (RR) graph method. The corresponding RR graph is constructed and reduced by exploiting its analogy with electrical resistive circ...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier S.A.
2012
|
| Subjects: | |
| Online Access: | 146 http://hdl.handle.net/20.500.11937/7360 |
| _version_ | 1848745346829647872 |
|---|---|
| author | Dar, Yasir Periasamy, Vijay Tade, Moses Datta, R. |
| author_facet | Dar, Yasir Periasamy, Vijay Tade, Moses Datta, R. |
| author_sort | Dar, Yasir |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The hydrogen oxidation reaction mechanism at Nickel/Yttria-stabilised Zirconia (Ni/YSZ) anode of the solid oxide fuel cell (SOFC) is investigated using the reaction route (RR) graph method. The corresponding RR graph is constructed and reduced by exploiting its analogy with electrical resistive circuits. An analytical expression for the overall reaction rate is derived and compared satisfactorily with the conventional quasi steady state (QSS) methodology. The reaction pathway containing the two hydrogen spill-over reactions is identified as the dominant pathway in the mechanism. Further analysis reveals that the hydrogen spill-over to oxide ion is the slowest reaction step with highest resistance and governs the rate of the over-all reaction. |
| first_indexed | 2025-11-14T06:15:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-7360 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:15:54Z |
| publishDate | 2012 |
| publisher | Elsevier S.A. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-73602018-04-13T06:57:59Z Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell Dar, Yasir Periasamy, Vijay Tade, Moses Datta, R. Reaction route graph Electrical analogy Solid oxide fuel cell Reaction mechanism Quasi-steady state The hydrogen oxidation reaction mechanism at Nickel/Yttria-stabilised Zirconia (Ni/YSZ) anode of the solid oxide fuel cell (SOFC) is investigated using the reaction route (RR) graph method. The corresponding RR graph is constructed and reduced by exploiting its analogy with electrical resistive circuits. An analytical expression for the overall reaction rate is derived and compared satisfactorily with the conventional quasi steady state (QSS) methodology. The reaction pathway containing the two hydrogen spill-over reactions is identified as the dominant pathway in the mechanism. Further analysis reveals that the hydrogen spill-over to oxide ion is the slowest reaction step with highest resistance and governs the rate of the over-all reaction. 2012 Journal Article http://hdl.handle.net/20.500.11937/7360 10.1016/j.jelechem.2012.04.014 146 Elsevier S.A. restricted |
| spellingShingle | Reaction route graph Electrical analogy Solid oxide fuel cell Reaction mechanism Quasi-steady state Dar, Yasir Periasamy, Vijay Tade, Moses Datta, R. Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell |
| title | Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell |
| title_full | Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell |
| title_fullStr | Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell |
| title_full_unstemmed | Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell |
| title_short | Topological analysis of hydrogen oxidation reaction kinetics at Ni/YSZ anode of the solid oxide fuel cell |
| title_sort | topological analysis of hydrogen oxidation reaction kinetics at ni/ysz anode of the solid oxide fuel cell |
| topic | Reaction route graph Electrical analogy Solid oxide fuel cell Reaction mechanism Quasi-steady state |
| url | 146 http://hdl.handle.net/20.500.11937/7360 |