Kesan kepekatan bahan api, kandungan mangkin dan pengaktifan ke atas prestasi tindanan sel bahan api asid formik langsung (DFAFC)

Translated title of the contribution: Effects of fuel concentrations, catalyst loadings and activation on the performance of direct formic acid fuel cell (DFAFC) stack

Mohd Shahbudin Mastar @ Masdar, Nurulain Ngah, Norraihanah Mohamed Aslam, Dedikarni Panuh, Siti Kartom Kamarudin, Wan Ramli Wan Daud

Research output: Contribution to journalArticle

Abstract

An air-breathing stack for a direct formic acid fuel cell (DFAFC) was designed, fabricated and evaluated. The DFAFC stack consisted of six cells arranged in a hexagonal arrangement and each single cell contained a pair of stainless steel current collectors, a membrane electrode assembly (MEA) and a cathode end-plate. A fuel reservoir was located at the center which supplied formic acid supply to the anode of each cell. The effects of fuel concentration, palladium (Pd) loading at the anode and activation on DFAFC performance and long term operation were evaluated. DFAFC stack performance increased with increasing fuel concentration and a stable power up to 200 mW at 2.4 V was achieved for passive and ambient conditions at a 7 M fuel concentration. Catalyst loading had a slight effect on DFAFC performance, where 4 mg cm-2 Pd loading was best for 7 M fuel operation. During long-term operation, the DFAFC stack could be operated for 27 hours without adding more fuel and less than a 20 % reduction in performance during operation. MEA reactivation with deionized water technique was required for immediate recovery of stack performance.

Original languageMalay
Pages (from-to)877-884
Number of pages8
JournalMalaysian Journal of Analytical Sciences
Volume20
Issue number4
DOIs
Publication statusPublished - 2016

Fingerprint

Formic acid fuel cells (FAFC)
Chemical activation
Catalysts
formic acid
Palladium
Anodes
Membranes
Electrodes
Deionized water
Stainless Steel
Cathodes
Recovery
Air

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

@article{e12b2c9b8b6546cfb1a8a7a45cd1ea79,
title = "Kesan kepekatan bahan api, kandungan mangkin dan pengaktifan ke atas prestasi tindanan sel bahan api asid formik langsung (DFAFC)",
abstract = "An air-breathing stack for a direct formic acid fuel cell (DFAFC) was designed, fabricated and evaluated. The DFAFC stack consisted of six cells arranged in a hexagonal arrangement and each single cell contained a pair of stainless steel current collectors, a membrane electrode assembly (MEA) and a cathode end-plate. A fuel reservoir was located at the center which supplied formic acid supply to the anode of each cell. The effects of fuel concentration, palladium (Pd) loading at the anode and activation on DFAFC performance and long term operation were evaluated. DFAFC stack performance increased with increasing fuel concentration and a stable power up to 200 mW at 2.4 V was achieved for passive and ambient conditions at a 7 M fuel concentration. Catalyst loading had a slight effect on DFAFC performance, where 4 mg cm-2 Pd loading was best for 7 M fuel operation. During long-term operation, the DFAFC stack could be operated for 27 hours without adding more fuel and less than a 20 {\%} reduction in performance during operation. MEA reactivation with deionized water technique was required for immediate recovery of stack performance.",
keywords = "Activation, Membrane electrode assembly, Passive direct formic acid fuel cell, Stack",
author = "{Mastar @ Masdar}, {Mohd Shahbudin} and Nurulain Ngah and {Mohamed Aslam}, Norraihanah and Dedikarni Panuh and Kamarudin, {Siti Kartom} and {Wan Daud}, {Wan Ramli}",
year = "2016",
doi = "10.17576/mjas-2016-2004-23",
language = "Malay",
volume = "20",
pages = "877--884",
journal = "Malaysian Journal of Analytical Sciences",
issn = "1394-2506",
publisher = "Faculty of Science and Technology, Universiti Kebangsaan Malaysia",
number = "4",

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T1 - Kesan kepekatan bahan api, kandungan mangkin dan pengaktifan ke atas prestasi tindanan sel bahan api asid formik langsung (DFAFC)

AU - Mastar @ Masdar, Mohd Shahbudin

AU - Ngah, Nurulain

AU - Mohamed Aslam, Norraihanah

AU - Panuh, Dedikarni

AU - Kamarudin, Siti Kartom

AU - Wan Daud, Wan Ramli

PY - 2016

Y1 - 2016

N2 - An air-breathing stack for a direct formic acid fuel cell (DFAFC) was designed, fabricated and evaluated. The DFAFC stack consisted of six cells arranged in a hexagonal arrangement and each single cell contained a pair of stainless steel current collectors, a membrane electrode assembly (MEA) and a cathode end-plate. A fuel reservoir was located at the center which supplied formic acid supply to the anode of each cell. The effects of fuel concentration, palladium (Pd) loading at the anode and activation on DFAFC performance and long term operation were evaluated. DFAFC stack performance increased with increasing fuel concentration and a stable power up to 200 mW at 2.4 V was achieved for passive and ambient conditions at a 7 M fuel concentration. Catalyst loading had a slight effect on DFAFC performance, where 4 mg cm-2 Pd loading was best for 7 M fuel operation. During long-term operation, the DFAFC stack could be operated for 27 hours without adding more fuel and less than a 20 % reduction in performance during operation. MEA reactivation with deionized water technique was required for immediate recovery of stack performance.

AB - An air-breathing stack for a direct formic acid fuel cell (DFAFC) was designed, fabricated and evaluated. The DFAFC stack consisted of six cells arranged in a hexagonal arrangement and each single cell contained a pair of stainless steel current collectors, a membrane electrode assembly (MEA) and a cathode end-plate. A fuel reservoir was located at the center which supplied formic acid supply to the anode of each cell. The effects of fuel concentration, palladium (Pd) loading at the anode and activation on DFAFC performance and long term operation were evaluated. DFAFC stack performance increased with increasing fuel concentration and a stable power up to 200 mW at 2.4 V was achieved for passive and ambient conditions at a 7 M fuel concentration. Catalyst loading had a slight effect on DFAFC performance, where 4 mg cm-2 Pd loading was best for 7 M fuel operation. During long-term operation, the DFAFC stack could be operated for 27 hours without adding more fuel and less than a 20 % reduction in performance during operation. MEA reactivation with deionized water technique was required for immediate recovery of stack performance.

KW - Activation

KW - Membrane electrode assembly

KW - Passive direct formic acid fuel cell

KW - Stack

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