Probing the electrolyte/electrode interface of half-cells using electrochemical impedance spectroscopy

Jesús MEDINA, Muralidhar Chourashiya, Raghunandan Sharma, Shuang Ma Andersen

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

Resumé

Polymer electrolyte membrane fuel cells (PEMFCs) as energy conversion systems is a green alternative due to its zero emission and high efficiency. However, a major challenge in its commercialization is their high cost and lower durability. It has been well established that the issue of durability is fundamentally due to degradation of the electrode catalyst as well as electrolyte/electrode interface.
In this paper,we investigate the interface of electrolyte/electrode by using a half-cell technique.The schematic of half-cell used for testing is shown in figure 1. Two types of half-cell will be tested and are made of (i) catalyst coated membrane (CCM) with a carbon electrode and (ii) catalyst coated gas-diffusion-electrode (CCG) laminated with the membrane. These half-cells will be investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) for evaluation of their performance and interface-quality, respectively.Additionally, the half-cell will be tested for degradation using a standardized degradation protocol and during the degradation test,the performance and interface-quality of the half-cell will be estimated using CV and EIS. Detailed results and discussion will be presented at the conference.
OriginalsprogEngelsk
Publikationsdato2018
Antal sider32
DOI
StatusUdgivet - 2018
BegivenhedThe general assembly of the Danish Electrochemical Society 2018: generalforsamling for Dansk Elektrokemisk Forening (DEF) 2018 - The Faculty of Engineering, University of Southern Denmark, Odense M, Danmark
Varighed: 1. nov. 20182. nov. 2018
http://www.electrochemistry.dk/aktiviteter/kommende/event/21-def2018

Konference

KonferenceThe general assembly of the Danish Electrochemical Society 2018
LokationThe Faculty of Engineering, University of Southern Denmark
LandDanmark
ByOdense M
Periode01/11/201802/11/2018
Internetadresse

Fingeraftryk

Electrochemical impedance spectroscopy
Electrolytes
Electrodes
Degradation
Catalysts
Cyclic voltammetry
Durability
Membranes
Diffusion in gases
Schematic diagrams
Proton exchange membrane fuel cells (PEMFC)
Energy conversion
Carbon
Testing
Costs

Citer dette

MEDINA, J., Chourashiya, M., Sharma, R., & Andersen, S. M. (2018). Probing the electrolyte/electrode interface of half-cells using electrochemical impedance spectroscopy. 32. Poster session præsenteret på The general assembly of the Danish Electrochemical Society 2018, Odense M, Danmark. https://doi.org/10.13140/RG.2.2.14853.40164
MEDINA, Jesús ; Chourashiya, Muralidhar ; Sharma, Raghunandan ; Andersen, Shuang Ma. / Probing the electrolyte/electrode interface of half-cells using electrochemical impedance spectroscopy. Poster session præsenteret på The general assembly of the Danish Electrochemical Society 2018, Odense M, Danmark.32 s.
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MEDINA, J, Chourashiya, M, Sharma, R & Andersen, SM 2018, 'Probing the electrolyte/electrode interface of half-cells using electrochemical impedance spectroscopy', The general assembly of the Danish Electrochemical Society 2018, Odense M, Danmark, 01/11/2018 - 02/11/2018 s. 32. https://doi.org/10.13140/RG.2.2.14853.40164

Probing the electrolyte/electrode interface of half-cells using electrochemical impedance spectroscopy. / MEDINA, Jesús ; Chourashiya, Muralidhar; Sharma, Raghunandan; Andersen, Shuang Ma.

2018. 32 Poster session præsenteret på The general assembly of the Danish Electrochemical Society 2018, Odense M, Danmark.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

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AU - Sharma, Raghunandan

AU - Andersen, Shuang Ma

PY - 2018

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N2 - Polymer electrolyte membrane fuel cells (PEMFCs) as energy conversion systems is a green alternative due to its zero emission and high efficiency. However, a major challenge in its commercialization is their high cost and lower durability. It has been well established that the issue of durability is fundamentally due to degradation of the electrode catalyst as well as electrolyte/electrode interface. In this paper,we investigate the interface of electrolyte/electrode by using a half-cell technique.The schematic of half-cell used for testing is shown in figure 1. Two types of half-cell will be tested and are made of (i) catalyst coated membrane (CCM) with a carbon electrode and (ii) catalyst coated gas-diffusion-electrode (CCG) laminated with the membrane. These half-cells will be investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) for evaluation of their performance and interface-quality, respectively.Additionally, the half-cell will be tested for degradation using a standardized degradation protocol and during the degradation test,the performance and interface-quality of the half-cell will be estimated using CV and EIS. Detailed results and discussion will be presented at the conference.

AB - Polymer electrolyte membrane fuel cells (PEMFCs) as energy conversion systems is a green alternative due to its zero emission and high efficiency. However, a major challenge in its commercialization is their high cost and lower durability. It has been well established that the issue of durability is fundamentally due to degradation of the electrode catalyst as well as electrolyte/electrode interface. In this paper,we investigate the interface of electrolyte/electrode by using a half-cell technique.The schematic of half-cell used for testing is shown in figure 1. Two types of half-cell will be tested and are made of (i) catalyst coated membrane (CCM) with a carbon electrode and (ii) catalyst coated gas-diffusion-electrode (CCG) laminated with the membrane. These half-cells will be investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) for evaluation of their performance and interface-quality, respectively.Additionally, the half-cell will be tested for degradation using a standardized degradation protocol and during the degradation test,the performance and interface-quality of the half-cell will be estimated using CV and EIS. Detailed results and discussion will be presented at the conference.

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MEDINA J, Chourashiya M, Sharma R, Andersen SM. Probing the electrolyte/electrode interface of half-cells using electrochemical impedance spectroscopy. 2018. Poster session præsenteret på The general assembly of the Danish Electrochemical Society 2018, Odense M, Danmark. https://doi.org/10.13140/RG.2.2.14853.40164