Mixed-fuels fuel cell running on methane-air mixture

Sung Pil Yoon; Hyun Jae Kim; Byung Tak Park; Suk Woo Nam; Jonghee Han; Tae Noon Lim; Seong Ahn Hong

doi:10.1115/1.2134741

Mixed-fuels fuel cell running on methane-air mixture

Sung Pil Yoon, Hyun Jae Kim, Byung Tak Park, Suk Woo Nam, Jonghee Han, Tae Noon Lim, Seong Ahn Hong

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

In order to develop solid oxide fuel cells (SOFCs) running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) within the pores of electrode by a sol-gel coating technique. The SDC coating on the pores of anode made it possible to have a good stability for long-term operation due to low carbon deposition and nickel sintering. In this study, we demonstrated a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 μm, and cathode; La_0.85Sr_0.15 MnO₃) with the modified anode was ∼300 mW/cm₂ at 700°C in the mixture of methane (25%) and air (75%) as the fuel, and air as the oxidant. The cell was operated for 500 hr without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed fuels fuel cell conditions, the cell performance was 40 mW/cm₂ at 700°C in the CH₄/ O₂ ratio of 1.

Original language	English
Pages (from-to)	83-86
Number of pages	4
Journal	Journal of Fuel Cell Science and Technology
Volume	3
Issue number	1
DOIs	https://doi.org/10.1115/1.2134741
Publication status	Published - 2006 Feb

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Mechanics of Materials
Mechanical Engineering

UN SDGs

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

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title = "Mixed-fuels fuel cell running on methane-air mixture",

abstract = "In order to develop solid oxide fuel cells (SOFCs) running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) within the pores of electrode by a sol-gel coating technique. The SDC coating on the pores of anode made it possible to have a good stability for long-term operation due to low carbon deposition and nickel sintering. In this study, we demonstrated a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 μm, and cathode; La0.85Sr0.15 MnO3) with the modified anode was ∼300 mW/cm2 at 700°C in the mixture of methane (25%) and air (75%) as the fuel, and air as the oxidant. The cell was operated for 500 hr without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed fuels fuel cell conditions, the cell performance was 40 mW/cm2 at 700°C in the CH4/ O2 ratio of 1.",

author = "Yoon, {Sung Pil} and Kim, {Hyun Jae} and Park, {Byung Tak} and Nam, {Suk Woo} and Jonghee Han and Lim, {Tae Noon} and Hong, {Seong Ahn}",

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AU - Yoon, Sung Pil

AU - Kim, Hyun Jae

AU - Park, Byung Tak

AU - Nam, Suk Woo

AU - Han, Jonghee

AU - Lim, Tae Noon

AU - Hong, Seong Ahn

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AB - In order to develop solid oxide fuel cells (SOFCs) running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) within the pores of electrode by a sol-gel coating technique. The SDC coating on the pores of anode made it possible to have a good stability for long-term operation due to low carbon deposition and nickel sintering. In this study, we demonstrated a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 μm, and cathode; La0.85Sr0.15 MnO3) with the modified anode was ∼300 mW/cm2 at 700°C in the mixture of methane (25%) and air (75%) as the fuel, and air as the oxidant. The cell was operated for 500 hr without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed fuels fuel cell conditions, the cell performance was 40 mW/cm2 at 700°C in the CH4/ O2 ratio of 1.

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Mixed-fuels fuel cell running on methane-air mixture

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