Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells

Shingjiang Jessie Lue; Ying Ling Liu; Wen Han Pan

Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells

Shingjiang Jessie Lue^*
, Ying Ling Liu
, Wen Han Pan

^*Corresponding author for this work

Department of Chemical and Materials Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This study reports the cell performance of direct methanol alkaline fuel cells (DMAFCs) employing hydroxide conducting membranes. The membrane electrode assemblies (MEA) consisted of carbon-supported platinum/ruthenium for anode, platinum for cathode, and poly(vinyl alcohol) (PVA)/carbon nano-tube (CNT)/KOH membranes as polymer electrolytes. The CNT was grafted with PVA chains and PVA/CNT composite membranes were prepared using a direct mixing process and solution casting method. The aggregated hydrophilic regimes of CNT served as hydroxide-conducting micro-channels and increased the ionic conductivity of the KOH-doped PVA/CNT films. The electrolyte with CNT exhibited higher maximum power density and could be operated at a higher current density due to the reduction in methanol crossover. The maximum power density and open-circuit voltage was monitored for DMAFCs at various operating conditions. The effects of methanol concentration, methanol/KOH ratio and operating temperature on the cell performance were determined and discussed with the electrolyte characteristics.

Original language	English
Title of host publication	7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Publisher	ACCM-7 Organizing Committee
Pages	301-303
Number of pages	3
ISBN (Print)	9781632660756
State	Published - 2010
Event	7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010 - Taipei, Taiwan Duration: 15 11 2010 → 18 11 2010

Publication series

Name	7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Volume	1

Conference

Conference	7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Country/Territory	Taiwan
City	Taipei
Period	15/11/10 → 18/11/10

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Cell performance
Conductivity
Direct methanol alkaline fuel cells
Methanol cross-over
Nano-composites

Cite this

@inproceedings{e214fad62c184136be10bf703a5cd0f9,

title = "Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells",

abstract = "This study reports the cell performance of direct methanol alkaline fuel cells (DMAFCs) employing hydroxide conducting membranes. The membrane electrode assemblies (MEA) consisted of carbon-supported platinum/ruthenium for anode, platinum for cathode, and poly(vinyl alcohol) (PVA)/carbon nano-tube (CNT)/KOH membranes as polymer electrolytes. The CNT was grafted with PVA chains and PVA/CNT composite membranes were prepared using a direct mixing process and solution casting method. The aggregated hydrophilic regimes of CNT served as hydroxide-conducting micro-channels and increased the ionic conductivity of the KOH-doped PVA/CNT films. The electrolyte with CNT exhibited higher maximum power density and could be operated at a higher current density due to the reduction in methanol crossover. The maximum power density and open-circuit voltage was monitored for DMAFCs at various operating conditions. The effects of methanol concentration, methanol/KOH ratio and operating temperature on the cell performance were determined and discussed with the electrolyte characteristics.",

keywords = "Cell performance, Conductivity, Direct methanol alkaline fuel cells, Methanol cross-over, Nano-composites",

author = "Lue, \{Shingjiang Jessie\} and Liu, \{Ying Ling\} and Pan, \{Wen Han\}",

year = "2010",

language = "英语",

isbn = "9781632660756",

series = "7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010",

publisher = "ACCM-7 Organizing Committee",

pages = "301--303",

booktitle = "7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010",

note = "7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010 ; Conference date: 15-11-2010 Through 18-11-2010",

}

Lue, SJ, Liu, YL & Pan, WH 2010, Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells. in 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010. 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, vol. 1, ACCM-7 Organizing Committee, pp. 301-303, 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, Taipei, Taiwan, 15/11/10.

Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells. / Lue, Shingjiang Jessie; Liu, Ying Ling; Pan, Wen Han.
7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010. ACCM-7 Organizing Committee, 2010. p. 301-303 (7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells

AU - Lue, Shingjiang Jessie

AU - Liu, Ying Ling

AU - Pan, Wen Han

PY - 2010

Y1 - 2010

N2 - This study reports the cell performance of direct methanol alkaline fuel cells (DMAFCs) employing hydroxide conducting membranes. The membrane electrode assemblies (MEA) consisted of carbon-supported platinum/ruthenium for anode, platinum for cathode, and poly(vinyl alcohol) (PVA)/carbon nano-tube (CNT)/KOH membranes as polymer electrolytes. The CNT was grafted with PVA chains and PVA/CNT composite membranes were prepared using a direct mixing process and solution casting method. The aggregated hydrophilic regimes of CNT served as hydroxide-conducting micro-channels and increased the ionic conductivity of the KOH-doped PVA/CNT films. The electrolyte with CNT exhibited higher maximum power density and could be operated at a higher current density due to the reduction in methanol crossover. The maximum power density and open-circuit voltage was monitored for DMAFCs at various operating conditions. The effects of methanol concentration, methanol/KOH ratio and operating temperature on the cell performance were determined and discussed with the electrolyte characteristics.

AB - This study reports the cell performance of direct methanol alkaline fuel cells (DMAFCs) employing hydroxide conducting membranes. The membrane electrode assemblies (MEA) consisted of carbon-supported platinum/ruthenium for anode, platinum for cathode, and poly(vinyl alcohol) (PVA)/carbon nano-tube (CNT)/KOH membranes as polymer electrolytes. The CNT was grafted with PVA chains and PVA/CNT composite membranes were prepared using a direct mixing process and solution casting method. The aggregated hydrophilic regimes of CNT served as hydroxide-conducting micro-channels and increased the ionic conductivity of the KOH-doped PVA/CNT films. The electrolyte with CNT exhibited higher maximum power density and could be operated at a higher current density due to the reduction in methanol crossover. The maximum power density and open-circuit voltage was monitored for DMAFCs at various operating conditions. The effects of methanol concentration, methanol/KOH ratio and operating temperature on the cell performance were determined and discussed with the electrolyte characteristics.

KW - Cell performance

KW - Conductivity

KW - Direct methanol alkaline fuel cells

KW - Methanol cross-over

KW - Nano-composites

UR - https://www.scopus.com/pages/publications/84905498824

M3 - 会议稿件

AN - SCOPUS:84905498824

SN - 9781632660756

T3 - 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010

SP - 301

EP - 303

BT - 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010

PB - ACCM-7 Organizing Committee

T2 - 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010

Y2 - 15 November 2010 through 18 November 2010

ER -

Polyvinyl alcohol/carbon nano-tube/potassium hydroxide electrolytes for direct methanol alkaline fuel cells

Abstract

Publication series

Conference

UN SDGs

Keywords

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