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    Rights statement: This is the author’s version of a work that was accepted for publication in Electrochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochimica Acta, 251, 2017 DOI: 10.1016/j.electacta.2017.08.068

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Enhanced performance based on hybrid cathode backing layer using a biomass derived activated carbon framework for methanol fuel cells

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Enhanced performance based on hybrid cathode backing layer using a biomass derived activated carbon framework for methanol fuel cells. / Balakrishnan, Prabhuraj; Inal, I. Isil Gurten; Cooksey, Emily; Banford, Anthony; Aktas, Zeki; Holmes, Stuart.

In: Electrochimica Acta, Vol. 251, 10.10.2017, p. 51-59.

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Balakrishnan, Prabhuraj ; Inal, I. Isil Gurten ; Cooksey, Emily ; Banford, Anthony ; Aktas, Zeki ; Holmes, Stuart. / Enhanced performance based on hybrid cathode backing layer using a biomass derived activated carbon framework for methanol fuel cells. In: Electrochimica Acta. 2017 ; Vol. 251. pp. 51-59.

Bibtex

@article{41866a450b314e2885e86fb73526fe61,
title = "Enhanced performance based on hybrid cathode backing layer using a biomass derived activated carbon framework for methanol fuel cells",
abstract = "Direct methanol fuel cells (DMFCs) suffer from performance reduction due to mass transport losses incurred at high current regions. In this work, we report the use of activated carbon (AC), prepared from factory waste-tea, as cathode microporous layer in the membrane electrode assembly (MEA) of a DMFC, alleviating this mass transport effect. This biomass based AC framework, when tested under fuel cell operating conditions provided 0.25 V @ 300 mA cm−2, enhancing cell performance by 33% over standard electrodes at 70 °C. During uninterrupted durability testing, this electrode displayed exceptional stability in mass transport dominated region, with loss of 15 mV day−1, compared to 25 mV day−1 loss for the standard. Sample and electrode characterization measurements reveal that pore size distribution/particle size characteristics coupled with hydrophobic nature of the synthesized activated carbon, contributed to the performance improvement.",
keywords = "Direct methanol fuel cells, Microporous layer, Carbon, Activated carbon , Improved power density",
author = "Prabhuraj Balakrishnan and Inal, {I. Isil Gurten} and Emily Cooksey and Anthony Banford and Zeki Aktas and Stuart Holmes",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Electrochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochimica Acta, 251, 2017 DOI: 10.1016/j.electacta.2017.08.068",
year = "2017",
month = oct,
day = "10",
doi = "10.1016/j.electacta.2017.08.068",
language = "English",
volume = "251",
pages = "51--59",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Enhanced performance based on hybrid cathode backing layer using a biomass derived activated carbon framework for methanol fuel cells

AU - Balakrishnan, Prabhuraj

AU - Inal, I. Isil Gurten

AU - Cooksey, Emily

AU - Banford, Anthony

AU - Aktas, Zeki

AU - Holmes, Stuart

N1 - This is the author’s version of a work that was accepted for publication in Electrochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochimica Acta, 251, 2017 DOI: 10.1016/j.electacta.2017.08.068

PY - 2017/10/10

Y1 - 2017/10/10

N2 - Direct methanol fuel cells (DMFCs) suffer from performance reduction due to mass transport losses incurred at high current regions. In this work, we report the use of activated carbon (AC), prepared from factory waste-tea, as cathode microporous layer in the membrane electrode assembly (MEA) of a DMFC, alleviating this mass transport effect. This biomass based AC framework, when tested under fuel cell operating conditions provided 0.25 V @ 300 mA cm−2, enhancing cell performance by 33% over standard electrodes at 70 °C. During uninterrupted durability testing, this electrode displayed exceptional stability in mass transport dominated region, with loss of 15 mV day−1, compared to 25 mV day−1 loss for the standard. Sample and electrode characterization measurements reveal that pore size distribution/particle size characteristics coupled with hydrophobic nature of the synthesized activated carbon, contributed to the performance improvement.

AB - Direct methanol fuel cells (DMFCs) suffer from performance reduction due to mass transport losses incurred at high current regions. In this work, we report the use of activated carbon (AC), prepared from factory waste-tea, as cathode microporous layer in the membrane electrode assembly (MEA) of a DMFC, alleviating this mass transport effect. This biomass based AC framework, when tested under fuel cell operating conditions provided 0.25 V @ 300 mA cm−2, enhancing cell performance by 33% over standard electrodes at 70 °C. During uninterrupted durability testing, this electrode displayed exceptional stability in mass transport dominated region, with loss of 15 mV day−1, compared to 25 mV day−1 loss for the standard. Sample and electrode characterization measurements reveal that pore size distribution/particle size characteristics coupled with hydrophobic nature of the synthesized activated carbon, contributed to the performance improvement.

KW - Direct methanol fuel cells

KW - Microporous layer

KW - Carbon

KW - Activated carbon

KW - Improved power density

U2 - 10.1016/j.electacta.2017.08.068

DO - 10.1016/j.electacta.2017.08.068

M3 - Journal article

VL - 251

SP - 51

EP - 59

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -