Efficient ceramic anodes infiltrated with binary and ternary electrocatalysts for SOFCs operating at low temperatures

A. Mohammed Hussain; Jens V.T. Hogh; Wei Zhang; Nikolaos Bonanos

doi:10.1016/j.jpowsour.2012.05.036

Efficient ceramic anodes infiltrated with binary and ternary electrocatalysts for SOFCs operating at low temperatures

A. Mohammed Hussain^*
, Jens V.T. Hogh
, Wei Zhang
, Nikolaos Bonanos

^*Corresponding author for this work

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

42 Scopus citations

Abstract

Electrocatalyst precursor of various combinations: Pt, Ru, Pd, Ni and Gd-doped CeO ₂ (CGO) were infiltrated into a porous Sr _0.94Ti _0.9Nb _0.1O ₃ (STN) backbone, to study the electrode performance of infiltrated ceramic anodes at low temperature ranges of 400-600 °C. The performance of the binary electrocatalyst infiltrated ceramic backbones are Pt-CGO>Ru-CGO>Pd-CGO>Ni-CGO. Ternary electrocatalyst of Ni-Pd-CGO and Ni-Pt-CGO showed the lowest polarization resistance of 0.31 and 0.11 Ωcm ², respectively at 600 °C in H ₂/3% H ₂O. The average particle size of the ternary electrocatalyst was larger than the binary Pd-CGO and Pt-CGO due to the particle coarsening of Ni nanoparticles. High resolution transmission electron microscopic analysis on the best performing Ni-Pt-CGO electrocatalyst infiltrated anode reveals the formation of Ni-Pt nanocrystalline alloy and a homogenous distribution of nanoparticles on STN backbone.

Original language	English
Pages (from-to)	308-313
Number of pages	6
Journal	Journal of Power Sources
Volume	216
DOIs	https://doi.org/10.1016/j.jpowsour.2012.05.036
State	Published - 15 Oct 2012
Externally published	Yes

Keywords

Infiltration
Low temperature solid oxide fuel cell anodes
Ni and CGO electrocatalyst
Noble metals
Porous Sr Ti Nb O

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.jpowsour.2012.05.036

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@article{064359fe5cfa4fb8bf49c812a6609626,

title = "Efficient ceramic anodes infiltrated with binary and ternary electrocatalysts for SOFCs operating at low temperatures",

abstract = "Electrocatalyst precursor of various combinations: Pt, Ru, Pd, Ni and Gd-doped CeO 2 (CGO) were infiltrated into a porous Sr 0.94Ti 0.9Nb 0.1O 3 (STN) backbone, to study the electrode performance of infiltrated ceramic anodes at low temperature ranges of 400-600 °C. The performance of the binary electrocatalyst infiltrated ceramic backbones are Pt-CGO>Ru-CGO>Pd-CGO>Ni-CGO. Ternary electrocatalyst of Ni-Pd-CGO and Ni-Pt-CGO showed the lowest polarization resistance of 0.31 and 0.11 Ωcm 2, respectively at 600 °C in H 2/3\% H 2O. The average particle size of the ternary electrocatalyst was larger than the binary Pd-CGO and Pt-CGO due to the particle coarsening of Ni nanoparticles. High resolution transmission electron microscopic analysis on the best performing Ni-Pt-CGO electrocatalyst infiltrated anode reveals the formation of Ni-Pt nanocrystalline alloy and a homogenous distribution of nanoparticles on STN backbone.",

keywords = "Infiltration, Low temperature solid oxide fuel cell anodes, Ni and CGO electrocatalyst, Noble metals, Porous Sr Ti Nb O",

author = "Hussain, \{A. Mohammed\} and Hogh, \{Jens V.T.\} and Wei Zhang and Nikolaos Bonanos",

year = "2012",

month = oct,

day = "15",

doi = "10.1016/j.jpowsour.2012.05.036",

language = "English",

volume = "216",

pages = "308--313",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Efficient ceramic anodes infiltrated with binary and ternary electrocatalysts for SOFCs operating at low temperatures

AU - Hussain, A. Mohammed

AU - Hogh, Jens V.T.

AU - Zhang, Wei

AU - Bonanos, Nikolaos

PY - 2012/10/15

Y1 - 2012/10/15

N2 - Electrocatalyst precursor of various combinations: Pt, Ru, Pd, Ni and Gd-doped CeO 2 (CGO) were infiltrated into a porous Sr 0.94Ti 0.9Nb 0.1O 3 (STN) backbone, to study the electrode performance of infiltrated ceramic anodes at low temperature ranges of 400-600 °C. The performance of the binary electrocatalyst infiltrated ceramic backbones are Pt-CGO>Ru-CGO>Pd-CGO>Ni-CGO. Ternary electrocatalyst of Ni-Pd-CGO and Ni-Pt-CGO showed the lowest polarization resistance of 0.31 and 0.11 Ωcm 2, respectively at 600 °C in H 2/3% H 2O. The average particle size of the ternary electrocatalyst was larger than the binary Pd-CGO and Pt-CGO due to the particle coarsening of Ni nanoparticles. High resolution transmission electron microscopic analysis on the best performing Ni-Pt-CGO electrocatalyst infiltrated anode reveals the formation of Ni-Pt nanocrystalline alloy and a homogenous distribution of nanoparticles on STN backbone.

AB - Electrocatalyst precursor of various combinations: Pt, Ru, Pd, Ni and Gd-doped CeO 2 (CGO) were infiltrated into a porous Sr 0.94Ti 0.9Nb 0.1O 3 (STN) backbone, to study the electrode performance of infiltrated ceramic anodes at low temperature ranges of 400-600 °C. The performance of the binary electrocatalyst infiltrated ceramic backbones are Pt-CGO>Ru-CGO>Pd-CGO>Ni-CGO. Ternary electrocatalyst of Ni-Pd-CGO and Ni-Pt-CGO showed the lowest polarization resistance of 0.31 and 0.11 Ωcm 2, respectively at 600 °C in H 2/3% H 2O. The average particle size of the ternary electrocatalyst was larger than the binary Pd-CGO and Pt-CGO due to the particle coarsening of Ni nanoparticles. High resolution transmission electron microscopic analysis on the best performing Ni-Pt-CGO electrocatalyst infiltrated anode reveals the formation of Ni-Pt nanocrystalline alloy and a homogenous distribution of nanoparticles on STN backbone.

KW - Infiltration

KW - Low temperature solid oxide fuel cell anodes

KW - Ni and CGO electrocatalyst

KW - Noble metals

KW - Porous Sr Ti Nb O

UR - https://www.scopus.com/pages/publications/84862305031

U2 - 10.1016/j.jpowsour.2012.05.036

DO - 10.1016/j.jpowsour.2012.05.036

M3 - Article

AN - SCOPUS:84862305031

SN - 0378-7753

VL - 216

SP - 308

EP - 313

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Efficient ceramic anodes infiltrated with binary and ternary electrocatalysts for SOFCs operating at low temperatures

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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