Effect of carbon ratio in the polypyrrole/carbon composite catalyst support on PEM fuel cell performance

Daş, Elif; Yurtcan, Ayşe Bayrakçeken

doi:10.1016/j.ijhydene.2016.05.167

Cited by 52 publications

(15 citation statements)

References 29 publications

(24 reference statements)

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“…reported a bimetallic Pt–Fe/PPy–C catalyst for direct methanol fuel cells. In our previous study, we synthesized PPy/C composites by changing the carbon ratio and obtained very promising PEMFC performance results by using these composites . Our results showed that PEMFC performance increased as the carbon ratio in the composite increased.…”

Section: Introductioncontrasting

confidence: 94%

“…Resultss howedt hat Pt/MC-PEDOT demonstrates ah igher resistance to carbon corrosion in relation to commercial Pt/ C. Similar to these studies,K onwer and Dolui [20] studied the electrical and electrochemical properties of PPy/graphite composites that were prepared by various graphite proportions.G ouse-Peera et al [21] prepared graphite nanofiber-PEDOT-supportedP tc atalysts.Z hao et al [22] reported ab imetallic Pt-Fe/PPy-C catalyst for direct methanol fuel cells.In our previous study,w es ynthesized PPy/C composites by changing the carbonr atioa nd obtained very promising PEMFCp erformance results by using these composites. [23] Our resultss howedt hat PEMFC performance increased as the carbon ratio in the composite increased.In the present study,P EDOT/Cc omposites were prepared with different carbonratios (35, 20, 12, 5%)b yinsitu chemical oxidative polymerization of EDOTm onomer on carbon particles to show the role of the presence of conducting polymers on PEM fuel-cell performancec omparedt op lain carbon and commercial catalyst (ETEK). Then, Pt nanoparticles were incorporated on the surface of PEDOT/C composites by am icrowave irradiationt echnique( MWI) as it is fast, inexpensive, and energy and time saving.…”

mentioning

confidence: 64%

“…Then, microwave irradiation was applied to accelerate the Pt nanoparticle reduction process over PEDOT and PEDOT/C composites by using a household microwave oven. The synthesis details can be found in our other report . The nominal Pt loading over the composite materials were 20 %.…”

Section: Methodsmentioning

confidence: 99%

“…Thes ynthesis details can be found in our other report. [23] Then ominal Pt loading over the composite materials were 20 %.…”

Section: Methodsmentioning

confidence: 99%

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PEDOT/C Composites used as a Proton Exchange Membrane Fuel Cell Catalyst Support: Role of Carbon Amount

Daş

Yurtcan

2017

Energy Tech

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Carbon‐based support materials are mostly used in proton exchange membrane fuel cells (PEMFCs); however, they often suffer from degradation under the operating conditions. In this context, conducting polymers and their composites stand out as a good alternative support material thanks to their chemical stability, high electrical conductivity, and higher oxidation‐resistant properties, which fulfills the requirements for possible utilization as electrocatalyst in PEMFCs. This study reports the preparation of poly(3,4‐ethylenedioxythiophene)/carbon (PEDOT/C) composite‐supported Pt nanoparticles for PEMFC electrodes. First, PEDOT/C composites were prepared using different carbon amounts by in situ chemical oxidative polymerization of EDOT monomer on carbon particles. Then, Pt nanoparticles (about 20 % loading) were obtained by using a microwave irradiation technique as it is fast, inexpensive, energy and time saving, and ecofriendly. The successful synthesis was confirmed by XRD, TEM, and thermogravimetric analysis investigations. The surface area and pore structure of the PEDOT/C supports was also investigated by using the BET technique. The ex situ and in situ electrochemical analyses were performed by using cyclic voltammetry and PEMFC performance tests. The obtained results for the fuel cell open the way for the use of PEDOT/C composite support materials as electrocatalysts for fuel cells.

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Section: Introductioncontrasting

confidence: 94%

mentioning

confidence: 64%

Section: Methodsmentioning

confidence: 99%

“…Thes ynthesis details can be found in our other report. [23] Then ominal Pt loading over the composite materials were 20 %.…”

Section: Methodsmentioning

confidence: 99%

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PEDOT/C Composites used as a Proton Exchange Membrane Fuel Cell Catalyst Support: Role of Carbon Amount

Daş

Yurtcan

2017

Energy Tech

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“…Therefore, a slight change in any parameter causes a shift in at least two other parameters and therefore has an overall effect on the fuel cell. The factors listed below influence the performance of the PEM fuel cell considerably that is; Change in the operating parameters [21], types of electrolyte used [22], and catalyst used [23,24]. Performance of a fuel cell can be described by a characteristic curve which plot the voltage output as a function of electrical current density, called as (I-V) curve, as shown in Fig.…”

Section: The Pem Fuel Cellsmentioning

confidence: 99%

Fuel cell membranes – Pros and cons

Ogungbemi

Ijaodola

Khatib

et al. 2019

Energy

186

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This investigation provides a critical analysis of the development of PEM fuel cells and related research with specific focus on the membrane material. The catalytic membrane is the most important component of the PEMFC giving rise to the need for the use of efficient, durable and cheap material to reduce the overall cost of the fuel cell. In this work, the need for materials other than Nafion to be used as PEM membranes is established and a case for the use of composite membranes material in fuel cells is made. Composite membranes increase the cell voltage by up to 11% even at high cell operating temperature of 95°C. They also increase the overall performance of the cell by up to 17% when dry hydrogen is utilised.Non-fluorinated membranes are also suitable for use in fuel cells for portable applications but they are very expensive and less conductive. Partially fluorinated membranes have good mechanical stability but expensive. The fluorinated membrane has high stability under oxidation and reduction conditions. Unfortunately, they only reach their optimum performance at ACCEPTED MANUSCRIPT 1 temperatures below 100°C which makes them of limited use in PEM fuel cells application at higher temperatures.

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Carbon Nanotube–Based Membranes for Proton Exchange Membrane Fuel Cells

Fegade¹,

Suryawanshi²

2023

Proton Exchange Membrane Fuel Cells

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Effect of carbon ratio in the polypyrrole/carbon composite catalyst support on PEM fuel cell performance

Cited by 52 publications

References 29 publications

PEDOT/C Composites used as a Proton Exchange Membrane Fuel Cell Catalyst Support: Role of Carbon Amount

PEDOT/C Composites used as a Proton Exchange Membrane Fuel Cell Catalyst Support: Role of Carbon Amount

Fuel cell membranes – Pros and cons

Carbon Nanotube–Based Membranes for Proton Exchange Membrane Fuel Cells

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