C-SiO2 supported catalysts for durability and performance improvement in PEM fuel cells

A. Uzunoglu; F. Dundar; A. Ata

doi:10.1149/1.3635657

C-SiO₂ supported catalysts for durability and performance improvement in PEM fuel cells

A. Uzunoglu^*, F. Dundar, A. Ata

^*Corresponding author for this work

Gebze Technical University

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

3 Citations (Scopus)

Abstract

In this study, modified C-SiO₂ support materials with various SiO₂ loadings were prepared. Also, Pt/C-SiO₂ and Pt-Co/C-SiO₂ catalysts were synthesized with 45 wt% Pt and 20 wt% Co loadings. The amount of SiO₂ content was determined by Thermo Gravimetric Analysis (TGA) at elevated temperatures. Cathode side of the custom made MEAs with synthesized catalysts were cycled between 0.6V and 1.2V for 24 hours at 20 mV/s scan rate under Hydrogen and Nitrogen purge. Nyquist plots were obtained with Impedance Spectroscopy analysis. The results indicated that the durability of the catalyst layer increased with increasing SiO₂ content. It was also found that the presence of Cobalt in the catalyst layer had a positive effect on the fuel cell durability.

Original language	English
Title of host publication	Polymer Electrolyte Fuel Cells 11
Publisher	Electrochemical Society Inc.
Pages	1257-1267
Number of pages	11
Edition	1
ISBN (Electronic)	9781607682547
ISBN (Print)	9781607682547
DOIs	https://doi.org/10.1149/1.3635657
Publication status	Published - 2011
Externally published	Yes
Event	11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States Duration: 9 Oct 2011 → 14 Oct 2011

Publication series

Name	ECS Transactions
Number	1
Volume	41
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
Country/Territory	United States
City	Boston, MA
Period	9/10/11 → 14/10/11

UN SDGs

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

Access to Document

10.1149/1.3635657

Cite this

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title = "C-SiO2 supported catalysts for durability and performance improvement in PEM fuel cells",

abstract = "In this study, modified C-SiO2 support materials with various SiO2 loadings were prepared. Also, Pt/C-SiO2 and Pt-Co/C-SiO2 catalysts were synthesized with 45 wt% Pt and 20 wt% Co loadings. The amount of SiO2 content was determined by Thermo Gravimetric Analysis (TGA) at elevated temperatures. Cathode side of the custom made MEAs with synthesized catalysts were cycled between 0.6V and 1.2V for 24 hours at 20 mV/s scan rate under Hydrogen and Nitrogen purge. Nyquist plots were obtained with Impedance Spectroscopy analysis. The results indicated that the durability of the catalyst layer increased with increasing SiO2 content. It was also found that the presence of Cobalt in the catalyst layer had a positive effect on the fuel cell durability.",

author = "A. Uzunoglu and F. Dundar and A. Ata",

year = "2011",

doi = "10.1149/1.3635657",

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series = "ECS Transactions",

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number = "1",

pages = "1257--1267",

booktitle = "Polymer Electrolyte Fuel Cells 11",

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note = "11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting ; Conference date: 09-10-2011 Through 14-10-2011",

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Uzunoglu, A, Dundar, F & Ata, A 2011, C-SiO₂ supported catalysts for durability and performance improvement in PEM fuel cells. in Polymer Electrolyte Fuel Cells 11. 1 edn, ECS Transactions, no. 1, vol. 41, Electrochemical Society Inc., pp. 1257-1267, 11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting, Boston, MA, United States, 9/10/11. https://doi.org/10.1149/1.3635657

TY - GEN

T1 - C-SiO2 supported catalysts for durability and performance improvement in PEM fuel cells

AU - Uzunoglu, A.

AU - Dundar, F.

AU - Ata, A.

PY - 2011

Y1 - 2011

N2 - In this study, modified C-SiO2 support materials with various SiO2 loadings were prepared. Also, Pt/C-SiO2 and Pt-Co/C-SiO2 catalysts were synthesized with 45 wt% Pt and 20 wt% Co loadings. The amount of SiO2 content was determined by Thermo Gravimetric Analysis (TGA) at elevated temperatures. Cathode side of the custom made MEAs with synthesized catalysts were cycled between 0.6V and 1.2V for 24 hours at 20 mV/s scan rate under Hydrogen and Nitrogen purge. Nyquist plots were obtained with Impedance Spectroscopy analysis. The results indicated that the durability of the catalyst layer increased with increasing SiO2 content. It was also found that the presence of Cobalt in the catalyst layer had a positive effect on the fuel cell durability.

AB - In this study, modified C-SiO2 support materials with various SiO2 loadings were prepared. Also, Pt/C-SiO2 and Pt-Co/C-SiO2 catalysts were synthesized with 45 wt% Pt and 20 wt% Co loadings. The amount of SiO2 content was determined by Thermo Gravimetric Analysis (TGA) at elevated temperatures. Cathode side of the custom made MEAs with synthesized catalysts were cycled between 0.6V and 1.2V for 24 hours at 20 mV/s scan rate under Hydrogen and Nitrogen purge. Nyquist plots were obtained with Impedance Spectroscopy analysis. The results indicated that the durability of the catalyst layer increased with increasing SiO2 content. It was also found that the presence of Cobalt in the catalyst layer had a positive effect on the fuel cell durability.

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DO - 10.1149/1.3635657

M3 - Conference contribution

AN - SCOPUS:84866349846

SN - 9781607682547

T3 - ECS Transactions

SP - 1257

EP - 1267

BT - Polymer Electrolyte Fuel Cells 11

PB - Electrochemical Society Inc.

T2 - 11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting

Y2 - 9 October 2011 through 14 October 2011

ER -