Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction.

Muralidhar Chourashiya, Raghunandan Sharma, Shuang Ma Andersen

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

Resumé

Thin film-rotating disc electrode (TF- RDE) experiment provides a fast research platform for screening of newly developed electrocatalysts for oxygen reduction reaction (ORR) activity, however, precise estimation of their performance parameters is necessary to avoid wastage of resources in the testing of otherwise unpromising electrocatalyst in actual fuel cells. Here the importance of accurate amount of catalyst (e.g. Pt) on GC disk of RDE in TF-RDE experiment is presented by characterizing the inks based on commercial catalysts for their electrocatalysis performance (ORR activity) and while estimating the performance parameters. The amount Pt loadings estimated using literature based (conventional) scheme as well as, the proposed, X-ray fluorescent (XRF) based scheme is presented. A parameter defined as ‘catalyst-density-of-the-ink’, which is based on estimated Pt-loadings using conventional and XRF based scheme, is used to correlate the variation observed in the estimated performance values and the amount of Pt on GC disk of RDE. The investigation suggests that the actual Pt loading on GC disk of RDE varies with the ink-conditions, which is considered constant in the conventional scheme, might be leading to irreproducibility of the data obtained by TF-RDE experiments. The XRF based scheme, which is simple and direct, can have the potential to replace conventional scheme for accurate catalyst loading estimation, improve experimental reproducibility and open many other possibilities (e.g. catalyst loading determination after tests) in electrocatalysis studies.
OriginalsprogEngelsk
Publikationsdato18. jul. 2018
DOI
StatusUdgivet - 18. jul. 2018
Begivenhed5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications: NANO ENERGY 2018 - University of Aveiro, Portugal, Aveiro, Portugal
Varighed: 18. jul. 201820. jul. 2018
http://www.nanoenergy.co.uk/index.html

Konference

Konference5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications
LokationUniversity of Aveiro, Portugal
LandPortugal
ByAveiro
Periode18/07/201820/07/2018
Internetadresse

Fingeraftryk

Glassy carbon
Rotating disks
Thin films
Electrodes
Catalysts
Oxygen
Ink
Electrocatalysis
Electrocatalysts
X rays
Experiments
Fuel cells
Screening
Thermodynamic properties
Testing

Citer dette

Chourashiya, M., Sharma, R., & Andersen, S. M. (2018). Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction.. Poster session præsenteret på 5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications, Aveiro, Portugal. https://doi.org/10.13140/RG.2.2.31079.55204
Chourashiya, Muralidhar ; Sharma, Raghunandan ; Andersen, Shuang Ma. / Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction. Poster session præsenteret på 5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications, Aveiro, Portugal.
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abstract = "Thin film-rotating disc electrode (TF- RDE) experiment provides a fast research platform for screening of newly developed electrocatalysts for oxygen reduction reaction (ORR) activity, however, precise estimation of their performance parameters is necessary to avoid wastage of resources in the testing of otherwise unpromising electrocatalyst in actual fuel cells. Here the importance of accurate amount of catalyst (e.g. Pt) on GC disk of RDE in TF-RDE experiment is presented by characterizing the inks based on commercial catalysts for their electrocatalysis performance (ORR activity) and while estimating the performance parameters. The amount Pt loadings estimated using literature based (conventional) scheme as well as, the proposed, X-ray fluorescent (XRF) based scheme is presented. A parameter defined as ‘catalyst-density-of-the-ink’, which is based on estimated Pt-loadings using conventional and XRF based scheme, is used to correlate the variation observed in the estimated performance values and the amount of Pt on GC disk of RDE. The investigation suggests that the actual Pt loading on GC disk of RDE varies with the ink-conditions, which is considered constant in the conventional scheme, might be leading to irreproducibility of the data obtained by TF-RDE experiments. The XRF based scheme, which is simple and direct, can have the potential to replace conventional scheme for accurate catalyst loading estimation, improve experimental reproducibility and open many other possibilities (e.g. catalyst loading determination after tests) in electrocatalysis studies.",
author = "Muralidhar Chourashiya and Raghunandan Sharma and Andersen, {Shuang Ma}",
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Chourashiya, M, Sharma, R & Andersen, SM 2018, 'Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction.' 5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications, Aveiro, Portugal, 18/07/2018 - 20/07/2018, . https://doi.org/10.13140/RG.2.2.31079.55204

Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction. / Chourashiya, Muralidhar; Sharma, Raghunandan; Andersen, Shuang Ma.

2018. Poster session præsenteret på 5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications, Aveiro, Portugal.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

TY - CONF

T1 - Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction.

AU - Chourashiya, Muralidhar

AU - Sharma, Raghunandan

AU - Andersen, Shuang Ma

PY - 2018/7/18

Y1 - 2018/7/18

N2 - Thin film-rotating disc electrode (TF- RDE) experiment provides a fast research platform for screening of newly developed electrocatalysts for oxygen reduction reaction (ORR) activity, however, precise estimation of their performance parameters is necessary to avoid wastage of resources in the testing of otherwise unpromising electrocatalyst in actual fuel cells. Here the importance of accurate amount of catalyst (e.g. Pt) on GC disk of RDE in TF-RDE experiment is presented by characterizing the inks based on commercial catalysts for their electrocatalysis performance (ORR activity) and while estimating the performance parameters. The amount Pt loadings estimated using literature based (conventional) scheme as well as, the proposed, X-ray fluorescent (XRF) based scheme is presented. A parameter defined as ‘catalyst-density-of-the-ink’, which is based on estimated Pt-loadings using conventional and XRF based scheme, is used to correlate the variation observed in the estimated performance values and the amount of Pt on GC disk of RDE. The investigation suggests that the actual Pt loading on GC disk of RDE varies with the ink-conditions, which is considered constant in the conventional scheme, might be leading to irreproducibility of the data obtained by TF-RDE experiments. The XRF based scheme, which is simple and direct, can have the potential to replace conventional scheme for accurate catalyst loading estimation, improve experimental reproducibility and open many other possibilities (e.g. catalyst loading determination after tests) in electrocatalysis studies.

AB - Thin film-rotating disc electrode (TF- RDE) experiment provides a fast research platform for screening of newly developed electrocatalysts for oxygen reduction reaction (ORR) activity, however, precise estimation of their performance parameters is necessary to avoid wastage of resources in the testing of otherwise unpromising electrocatalyst in actual fuel cells. Here the importance of accurate amount of catalyst (e.g. Pt) on GC disk of RDE in TF-RDE experiment is presented by characterizing the inks based on commercial catalysts for their electrocatalysis performance (ORR activity) and while estimating the performance parameters. The amount Pt loadings estimated using literature based (conventional) scheme as well as, the proposed, X-ray fluorescent (XRF) based scheme is presented. A parameter defined as ‘catalyst-density-of-the-ink’, which is based on estimated Pt-loadings using conventional and XRF based scheme, is used to correlate the variation observed in the estimated performance values and the amount of Pt on GC disk of RDE. The investigation suggests that the actual Pt loading on GC disk of RDE varies with the ink-conditions, which is considered constant in the conventional scheme, might be leading to irreproducibility of the data obtained by TF-RDE experiments. The XRF based scheme, which is simple and direct, can have the potential to replace conventional scheme for accurate catalyst loading estimation, improve experimental reproducibility and open many other possibilities (e.g. catalyst loading determination after tests) in electrocatalysis studies.

U2 - 10.13140/RG.2.2.31079.55204

DO - 10.13140/RG.2.2.31079.55204

M3 - Poster

ER -

Chourashiya M, Sharma R, Andersen SM. Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction.. 2018. Poster session præsenteret på 5th International Conference on Nanotechnology, Nanomaterials & Thin Films for Energy Applications, Aveiro, Portugal. https://doi.org/10.13140/RG.2.2.31079.55204