In situ Reduction and Oxidation of Nickel from Solid Oxide Fuel Cells in a Transmission Electron Microscope

Publication: Research - peer-reviewConference article – Annual report year: 2009

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In situ Reduction and Oxidation of Nickel from Solid Oxide Fuel Cells in a Transmission Electron Microscope. / Faes, Antonin; Jeangros, Quentin; Wagner, Jakob Birkedal; Hansen, Thomas Willum; Van Herle, Jan; Brisse, Annabelle; Dunin-Borkowski, Rafal E.; Hessler-Wyser, Aïcha.

In: E C S Transactions, Vol. 25, No. 2, 2009, p. 1985-1992.

Publication: Research - peer-reviewConference article – Annual report year: 2009

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Faes, Antonin; Jeangros, Quentin; Wagner, Jakob Birkedal; Hansen, Thomas Willum; Van Herle, Jan; Brisse, Annabelle; Dunin-Borkowski, Rafal E.; Hessler-Wyser, Aïcha / In situ Reduction and Oxidation of Nickel from Solid Oxide Fuel Cells in a Transmission Electron Microscope.

In: E C S Transactions, Vol. 25, No. 2, 2009, p. 1985-1992.

Publication: Research - peer-reviewConference article – Annual report year: 2009

Bibtex

@article{50febd16d0234afdbe545fb595783d32,
title = "In situ Reduction and Oxidation of Nickel from Solid Oxide Fuel Cells in a Transmission Electron Microscope",
publisher = "Electrochemical Society, Inc.",
author = "Antonin Faes and Quentin Jeangros and Wagner, {Jakob Birkedal} and Hansen, {Thomas Willum} and {Van Herle}, Jan and Annabelle Brisse and Dunin-Borkowski, {Rafal E.} and Aïcha Hessler-Wyser",
note = "Copyright The Electrochemical Society, Inc. [2009]. 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).",
year = "2009",
doi = "10.1149/1.3205743",
volume = "25",
number = "2",
pages = "1985--1992",
journal = "E C S Transactions",
issn = "1938-5862",

}

RIS

TY - CONF

T1 - In situ Reduction and Oxidation of Nickel from Solid Oxide Fuel Cells in a Transmission Electron Microscope

A1 - Faes,Antonin

A1 - Jeangros,Quentin

A1 - Wagner,Jakob Birkedal

A1 - Hansen,Thomas Willum

A1 - Van Herle,Jan

A1 - Brisse,Annabelle

A1 - Dunin-Borkowski,Rafal E.

A1 - Hessler-Wyser,Aïcha

AU - Faes,Antonin

AU - Jeangros,Quentin

AU - Wagner,Jakob Birkedal

AU - Hansen,Thomas Willum

AU - Van Herle,Jan

AU - Brisse,Annabelle

AU - Dunin-Borkowski,Rafal E.

AU - Hessler-Wyser,Aïcha

PB - Electrochemical Society, Inc.

PY - 2009

Y1 - 2009

N2 - Environmental transmission electron microscopy was used to characterize in situ the reduction and oxidation of nickel from a Ni/YSZ solid oxide fuel cell anode support between 300-500{degree sign}C. The reduction is done under low hydrogen pressure. The reduction initiates at the NiO/YSZ interface, then moves to the center of the NiO grain. At higher temperature the reduction occurs also at the free NiO surface and the NiO/NiO grain boundaries. The growth of Ni is epitaxial on its oxide. Due to high volume decrease, nanopores are formed during reduction. During oxidation, oxide nanocrystallites are formed on the nickel surface. The crystallites fill up the nickel porosity and create an inhomogeneous structure with remaining voids. This change in structure causes the nickel oxide to expand during a RedOx cycle.

AB - Environmental transmission electron microscopy was used to characterize in situ the reduction and oxidation of nickel from a Ni/YSZ solid oxide fuel cell anode support between 300-500{degree sign}C. The reduction is done under low hydrogen pressure. The reduction initiates at the NiO/YSZ interface, then moves to the center of the NiO grain. At higher temperature the reduction occurs also at the free NiO surface and the NiO/NiO grain boundaries. The growth of Ni is epitaxial on its oxide. Due to high volume decrease, nanopores are formed during reduction. During oxidation, oxide nanocrystallites are formed on the nickel surface. The crystallites fill up the nickel porosity and create an inhomogeneous structure with remaining voids. This change in structure causes the nickel oxide to expand during a RedOx cycle.

UR - http://dx.doi.org/10.1149/1.3205743

U2 - 10.1149/1.3205743

DO - 10.1149/1.3205743

JO - E C S Transactions

JF - E C S Transactions

SN - 1938-5862

IS - 2

VL - 25

SP - 1985

EP - 1992

ER -