In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs

Jaeha Myung; Dragos Neagu; Mark Tham; John Thomas Sirr Irvine

doi:10.1149/06801.1121ecst

In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs

Jaeha Myung, Dragos Neagu, Mark Tham, John Thomas Sirr Irvine

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

4 Citations (Scopus)

9 Downloads (Pure)

Abstract

Conventional Ni cermet anodes suffer from carbon deposition when they are directly used with hydrocarbon fuels due to the negative effects of pyrolysis and Boudouard reactions. In this work, the use of a non-stoichiometric perovskite, La_0.8Ce_0.1Ni_0.4Ti_0.6O₃, as a reforming layer in reducing atmospheres led to the surface being highly populated with homogeneously exsolved Ni nano particles. This catalyst layer was applied to Ni-GDC anode supported and ScSZ electrolyte supported cells to prevent carbon deposition and to stabilize operation with dry methane. The catalyst layer showed both excellent attachment to the Ni-GDC anode and resistance to carbon deposition. The performance of the Ni-GDC anode-supported cells with the catalyst layer was about 1.1 W/cm² in hydrogen fuel which is similar to that seen without the use of a catalyst layer. For the ScSZ electrolyte supported cells, the catalyst layer improved the power density and stability when in operation with dry methane.

Original language	English
Title of host publication	14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015
Editors	K. Eguchi, S. C. Singhal
Publisher	Electrochemical Society
Pages	1121-1128
Number of pages	8
ISBN (Print)	9781607685395
DOIs	https://doi.org/10.1149/06801.1121ecst
Publication status	Published - 17 Jul 2015
Event	ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV - Glasgow, United Kingdom Duration: 26 Jul 2015 → 31 Jul 2015

Publication series

Name	ECS Transactions
Publisher	Electrochemical Society
Number	1
Volume	68
ISSN (Print)	1938-5862

Conference

Conference	ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV
Country/Territory	United Kingdom
City	Glasgow
Period	26/07/15 → 31/07/15

Access to Document

10.1149/06801.1121ecst

Irvine_2015_ECS_Insitu
© The Electrochemical Society, Inc. 2015. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published here: https://dx.doi.org/10.1149/06801.1121ecst
Final published version, 325 KB

Flame Solid Oxide: Flame Solid Oxide Fuel Cells, Simple Devices to Extract Electricity Directly from Natural Gas and Liquid Petroleum Gas Flames
Irvine, J. T. S. (PI) & Cassidy, M. (CoI)
EPSRC
1/09/13 → 31/12/17
Project: Standard

Cite this

Myung, J., Neagu, D., Tham, M., & Irvine, J. T. S. (2015). In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs. In K. Eguchi, & S. C. Singhal (Eds.), 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015 (pp. 1121-1128). (ECS Transactions; Vol. 68, No. 1). Electrochemical Society. https://doi.org/10.1149/06801.1121ecst

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abstract = "Conventional Ni cermet anodes suffer from carbon deposition when they are directly used with hydrocarbon fuels due to the negative effects of pyrolysis and Boudouard reactions. In this work, the use of a non-stoichiometric perovskite, La0.8Ce0.1Ni0.4Ti0.6O3, as a reforming layer in reducing atmospheres led to the surface being highly populated with homogeneously exsolved Ni nano particles. This catalyst layer was applied to Ni-GDC anode supported and ScSZ electrolyte supported cells to prevent carbon deposition and to stabilize operation with dry methane. The catalyst layer showed both excellent attachment to the Ni-GDC anode and resistance to carbon deposition. The performance of the Ni-GDC anode-supported cells with the catalyst layer was about 1.1 W/cm2 in hydrogen fuel which is similar to that seen without the use of a catalyst layer. For the ScSZ electrolyte supported cells, the catalyst layer improved the power density and stability when in operation with dry methane.",

author = "Jaeha Myung and Dragos Neagu and Mark Tham and Irvine, {John Thomas Sirr}",

note = "The authors gratefully thank the Engineering and Physical Sciences Research Council (EPSRC) SuperGen Hydrogen Fuel Cells Challenges Flame SOFC Project (Grant No EP/K021036/1) for financial support; ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV ; Conference date: 26-07-2015 Through 31-07-2015",

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Myung, J, Neagu, D, Tham, M & Irvine, JTS 2015, In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs. in K Eguchi & SC Singhal (eds), 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015. ECS Transactions, no. 1, vol. 68, Electrochemical Society, pp. 1121-1128, ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV , Glasgow, United Kingdom, 26/07/15. https://doi.org/10.1149/06801.1121ecst

In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs. / Myung, Jaeha; Neagu, Dragos; Tham, Mark et al.
14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015. ed. / K. Eguchi; S. C. Singhal. Electrochemical Society, 2015. p. 1121-1128 (ECS Transactions; Vol. 68, No. 1).

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

TY - GEN

T1 - In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs

AU - Myung, Jaeha

AU - Neagu, Dragos

AU - Tham, Mark

AU - Irvine, John Thomas Sirr

N1 - The authors gratefully thank the Engineering and Physical Sciences Research Council (EPSRC) SuperGen Hydrogen Fuel Cells Challenges Flame SOFC Project (Grant No EP/K021036/1) for financial support

PY - 2015/7/17

Y1 - 2015/7/17

N2 - Conventional Ni cermet anodes suffer from carbon deposition when they are directly used with hydrocarbon fuels due to the negative effects of pyrolysis and Boudouard reactions. In this work, the use of a non-stoichiometric perovskite, La0.8Ce0.1Ni0.4Ti0.6O3, as a reforming layer in reducing atmospheres led to the surface being highly populated with homogeneously exsolved Ni nano particles. This catalyst layer was applied to Ni-GDC anode supported and ScSZ electrolyte supported cells to prevent carbon deposition and to stabilize operation with dry methane. The catalyst layer showed both excellent attachment to the Ni-GDC anode and resistance to carbon deposition. The performance of the Ni-GDC anode-supported cells with the catalyst layer was about 1.1 W/cm2 in hydrogen fuel which is similar to that seen without the use of a catalyst layer. For the ScSZ electrolyte supported cells, the catalyst layer improved the power density and stability when in operation with dry methane.

AB - Conventional Ni cermet anodes suffer from carbon deposition when they are directly used with hydrocarbon fuels due to the negative effects of pyrolysis and Boudouard reactions. In this work, the use of a non-stoichiometric perovskite, La0.8Ce0.1Ni0.4Ti0.6O3, as a reforming layer in reducing atmospheres led to the surface being highly populated with homogeneously exsolved Ni nano particles. This catalyst layer was applied to Ni-GDC anode supported and ScSZ electrolyte supported cells to prevent carbon deposition and to stabilize operation with dry methane. The catalyst layer showed both excellent attachment to the Ni-GDC anode and resistance to carbon deposition. The performance of the Ni-GDC anode-supported cells with the catalyst layer was about 1.1 W/cm2 in hydrogen fuel which is similar to that seen without the use of a catalyst layer. For the ScSZ electrolyte supported cells, the catalyst layer improved the power density and stability when in operation with dry methane.

U2 - 10.1149/06801.1121ecst

DO - 10.1149/06801.1121ecst

M3 - Conference contribution

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BT - 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015

A2 - Eguchi, K.

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T2 - ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV

Y2 - 26 July 2015 through 31 July 2015

ER -

In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs

Abstract

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Projects

Flame Solid Oxide: Flame Solid Oxide Fuel Cells, Simple Devices to Extract Electricity Directly from Natural Gas and Liquid Petroleum Gas Flames

Cite this