Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1517-1519 |
| Seitenumfang | 3 |
| Fachzeitschrift | Electrochemistry communications |
| Jahrgang | 10 |
| Ausgabenummer | 12 |
| Publikationsstatus | Veröffentlicht - Nov. 2010 |
| Extern publiziert | Ja |
Abstract
In this study, total harmonic distortion (THD) analysis is put forward to illustrate nonlinear behavior of direct methanol fuel cell (DMFC) anode. THD simulations by means of different methanol oxidation kinetics as well as its experimental validation are both carried out. It is shown that the THD model adopting a three-step methanol oxidation mechanism with Kauranen-Frumkin/Temkin kinetics can be used to illustrate the THD variation for DMFC anode qualitatively. The experimental THD response at the frequency range from 0.063 Hz to 0.4 Hz is identified as the reflection of the nonlinearity variation of those kinetic steps involving intermediates in the methanol oxidation. In such a frequency domain, THD value decrease monotonously with decreasing methanol concentration, which notices its accessibility on methanol concentration detection.
Schlagwörter
- Concentration (process), Frequency response, Harmonic analysis, Harmonic distortion, Methanol, Methanol fuels, Nonlinear analysis, Oxidation, Reaction intermediates, Wave filters, DMFC
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Elektrochemie
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in: Electrochemistry communications, Jahrgang 10, Nr. 12, 11.2010, S. 1517-1519.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Total harmonic distortion analysis for direct methanol fuel cell anode
AU - Mao, Qing
AU - Krewer, Ulrike
AU - Hanke-Rauschenbach, Richard
N1 - Funding information: The authors acknowledge support of this work by the Alexander von Humboldt Foundation .
PY - 2010/11
Y1 - 2010/11
N2 - In this study, total harmonic distortion (THD) analysis is put forward to illustrate nonlinear behavior of direct methanol fuel cell (DMFC) anode. THD simulations by means of different methanol oxidation kinetics as well as its experimental validation are both carried out. It is shown that the THD model adopting a three-step methanol oxidation mechanism with Kauranen-Frumkin/Temkin kinetics can be used to illustrate the THD variation for DMFC anode qualitatively. The experimental THD response at the frequency range from 0.063 Hz to 0.4 Hz is identified as the reflection of the nonlinearity variation of those kinetic steps involving intermediates in the methanol oxidation. In such a frequency domain, THD value decrease monotonously with decreasing methanol concentration, which notices its accessibility on methanol concentration detection.
AB - In this study, total harmonic distortion (THD) analysis is put forward to illustrate nonlinear behavior of direct methanol fuel cell (DMFC) anode. THD simulations by means of different methanol oxidation kinetics as well as its experimental validation are both carried out. It is shown that the THD model adopting a three-step methanol oxidation mechanism with Kauranen-Frumkin/Temkin kinetics can be used to illustrate the THD variation for DMFC anode qualitatively. The experimental THD response at the frequency range from 0.063 Hz to 0.4 Hz is identified as the reflection of the nonlinearity variation of those kinetic steps involving intermediates in the methanol oxidation. In such a frequency domain, THD value decrease monotonously with decreasing methanol concentration, which notices its accessibility on methanol concentration detection.
KW - DMFC
KW - Methanol concentration
KW - Nonlinear behavior
KW - Total harmonic distortion (THD) analysis
KW - Concentration (process)
KW - Frequency response
KW - Harmonic analysis
KW - Harmonic distortion
KW - Methanol
KW - Methanol fuels
KW - Nonlinear analysis
KW - Oxidation
KW - Reaction intermediates
KW - Wave filters
KW - DMFC
UR - http://www.scopus.com/inward/record.url?scp=78049311737&partnerID=8YFLogxK
U2 - 10.1016/j.elecom.2010.08.022
DO - 10.1016/j.elecom.2010.08.022
M3 - Article
AN - SCOPUS:78049311737
VL - 10
SP - 1517
EP - 1519
JO - Electrochemistry communications
JF - Electrochemistry communications
SN - 1388-2481
IS - 12
ER -