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Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC)

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dc.contributor.author Modibedi, Remegia M
dc.contributor.author Mehlo, T
dc.contributor.author Ozoemena, KI
dc.contributor.author Mathe, Mahlanyane K
dc.date.accessioned 2016-01-26T07:03:58Z
dc.date.available 2016-01-26T07:03:58Z
dc.date.issued 2015-10
dc.identifier.citation Modibedi, R.M, Mehlo, T, Ozoemena, K.I and Mathe, M.K. 2015. Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC). International Journal of Hydrogen Energy, vol. 40(45), pp 15605-15612 en_US
dc.identifier.issn 0360-3199
dc.identifier.uri http://ac.els-cdn.com/S0360319915024027/1-s2.0-S0360319915024027-main.pdf?_tid=0e6c5fba-c014-11e5-8586-00000aab0f6c&acdnat=1453362987_ed61648813ef2bfc916cdf69a6093c21
dc.identifier.uri http://hdl.handle.net/10204/8375
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0360319915024027
dc.identifier.uri https://doi.org/10.1016/j.ijhydene.2015.08.113
dc.description Copyright: 2015 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in the Journal of Hydrogen Energy, vol. 40(45), pp 15605-15612 en_US
dc.description.abstract This work describes the use of Pd nanocatalyst on Vulcan XC-72 (at a very low loading, 8 wt % Pd) in passive alkaline direct ethanol fuel cell (ADEFC). The average Pd particle size obtained with TEM was 3.5 ± 0.5 nm. The XRD results of the prepared Pd nanocatalysts showed the dominant fcc structure. The catalytic activity towards ethanol electrooxidation in various concentrations of KOH was evaluated in the half-cell tests by cyclic voltammetry and chronoamperometry. Improved performance and stability on Pd/C was observed when the [hydroxyl]/[ethanol] = 1. The Pd/C nanocatalyst performance in ADEFC under passive state showed enhanced maximum current and power densities in 5 M KOH. 5 M ethanol showed power density of 7 mW cm(sup-2) and maximum current density of 33 mA cm(sup-2) in 1 M KOH. While at higher KOH concentration of 5 M, 5 M ethanol showed improved power density of 17 mW cm(sup-2) and 90 mA cm(sup-2) current density as well as stability. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Workflow;16088
dc.subject Palladium nanocatalysts en_US
dc.subject Hydroxyl/ethanol concentration ratio en_US
dc.subject Passive ADEFC en_US
dc.subject Power density en_US
dc.title Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC) en_US
dc.type Article en_US
dc.identifier.apacitation Modibedi, R. M., Mehlo, T., Ozoemena, K., & Mathe, M. K. (2015). Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC). http://hdl.handle.net/10204/8375 en_ZA
dc.identifier.chicagocitation Modibedi, Remegia M, T Mehlo, KI Ozoemena, and Mahlanyane K Mathe "Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC)." (2015) http://hdl.handle.net/10204/8375 en_ZA
dc.identifier.vancouvercitation Modibedi RM, Mehlo T, Ozoemena K, Mathe MK. Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC). 2015; http://hdl.handle.net/10204/8375. en_ZA
dc.identifier.ris TY - Article AU - Modibedi, Remegia M AU - Mehlo, T AU - Ozoemena, KI AU - Mathe, Mahlanyane K AB - This work describes the use of Pd nanocatalyst on Vulcan XC-72 (at a very low loading, 8 wt % Pd) in passive alkaline direct ethanol fuel cell (ADEFC). The average Pd particle size obtained with TEM was 3.5 ± 0.5 nm. The XRD results of the prepared Pd nanocatalysts showed the dominant fcc structure. The catalytic activity towards ethanol electrooxidation in various concentrations of KOH was evaluated in the half-cell tests by cyclic voltammetry and chronoamperometry. Improved performance and stability on Pd/C was observed when the [hydroxyl]/[ethanol] = 1. The Pd/C nanocatalyst performance in ADEFC under passive state showed enhanced maximum current and power densities in 5 M KOH. 5 M ethanol showed power density of 7 mW cm(sup-2) and maximum current density of 33 mA cm(sup-2) in 1 M KOH. While at higher KOH concentration of 5 M, 5 M ethanol showed improved power density of 17 mW cm(sup-2) and 90 mA cm(sup-2) current density as well as stability. DA - 2015-10 DB - ResearchSpace DP - CSIR KW - Palladium nanocatalysts KW - Hydroxyl/ethanol concentration ratio KW - Passive ADEFC KW - Power density LK - https://researchspace.csir.co.za PY - 2015 SM - 0360-3199 T1 - Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC) TI - Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC) UR - http://hdl.handle.net/10204/8375 ER - en_ZA


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