Sulfur tolerance improvement of Ni-YSZ anode by alkaline earth metal oxide BaO for solid oxide fuel cells

Limin Liu; Kening Sun; Xiaoliang Zhou; Xiaokun Li; Ming Zhang; Naiqing Zhang

doi:10.1016/j.elecom.2012.03.027

Sulfur tolerance improvement of Ni-YSZ anode by alkaline earth metal oxide BaO for solid oxide fuel cells

Limin Liu, Kening Sun^*, Xiaoliang Zhou, Xiaokun Li, Ming Zhang, Naiqing Zhang

^*Corresponding author for this work

Harbin Institute of Technology

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

21 Citations (Scopus)

Abstract

The anodic performances of Ni-Y ₂O ₃ stabilized ZrO ₂ (Ni-YSZ) modified by alkaline earth metal oxide BaO were investigated for solid oxide fuel cells operating in H ₂S-containing hydrogen fuels. The XRF and EDS results indicated that the amount of BaO was about 5%. The cell with BaO/Ni-YSZ anode exhibited almost constant peak power densities when the fuel was switched from wet hydrogen to 50 ppm H ₂S contaminated wet hydrogen and good stability in wet H ₂S-contained hydrogen fuels with H ₂S concentration gradually increased from 5 to 50 ppm. The EDS and XPS results demonstrated that no element S was detectable after sulfur poisoning testing. High water adsorption ability of BaO could be the primary reason for the high sulfur tolerance. The obtained results confirmed the previous conclusion that BaO/Ni interfaces can resist not only deactivation by coking but also sulfur poisoning of a conventional Ni-YSZ anode.

Original language	English
Pages (from-to)	63-66
Number of pages	4
Journal	Electrochemistry Communications
Volume	19
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2012.03.027
Publication status	Published - Jun 2012
Externally published	Yes

Keywords

Alkaline earth metal oxide
Catalyst infiltration
Nickel anode
Solid oxide fuel cell
Sulfur tolerance

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10.1016/j.elecom.2012.03.027

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title = "Sulfur tolerance improvement of Ni-YSZ anode by alkaline earth metal oxide BaO for solid oxide fuel cells",

abstract = "The anodic performances of Ni-Y 2O 3 stabilized ZrO 2 (Ni-YSZ) modified by alkaline earth metal oxide BaO were investigated for solid oxide fuel cells operating in H 2S-containing hydrogen fuels. The XRF and EDS results indicated that the amount of BaO was about 5%. The cell with BaO/Ni-YSZ anode exhibited almost constant peak power densities when the fuel was switched from wet hydrogen to 50 ppm H 2S contaminated wet hydrogen and good stability in wet H 2S-contained hydrogen fuels with H 2S concentration gradually increased from 5 to 50 ppm. The EDS and XPS results demonstrated that no element S was detectable after sulfur poisoning testing. High water adsorption ability of BaO could be the primary reason for the high sulfur tolerance. The obtained results confirmed the previous conclusion that BaO/Ni interfaces can resist not only deactivation by coking but also sulfur poisoning of a conventional Ni-YSZ anode.",

keywords = "Alkaline earth metal oxide, Catalyst infiltration, Nickel anode, Solid oxide fuel cell, Sulfur tolerance",

author = "Limin Liu and Kening Sun and Xiaoliang Zhou and Xiaokun Li and Ming Zhang and Naiqing Zhang",

year = "2012",

month = jun,

doi = "10.1016/j.elecom.2012.03.027",

language = "English",

volume = "19",

pages = "63--66",

journal = "Electrochemistry Communications",

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TY - JOUR

T1 - Sulfur tolerance improvement of Ni-YSZ anode by alkaline earth metal oxide BaO for solid oxide fuel cells

AU - Liu, Limin

AU - Sun, Kening

AU - Zhou, Xiaoliang

AU - Li, Xiaokun

AU - Zhang, Ming

AU - Zhang, Naiqing

PY - 2012/6

Y1 - 2012/6

N2 - The anodic performances of Ni-Y 2O 3 stabilized ZrO 2 (Ni-YSZ) modified by alkaline earth metal oxide BaO were investigated for solid oxide fuel cells operating in H 2S-containing hydrogen fuels. The XRF and EDS results indicated that the amount of BaO was about 5%. The cell with BaO/Ni-YSZ anode exhibited almost constant peak power densities when the fuel was switched from wet hydrogen to 50 ppm H 2S contaminated wet hydrogen and good stability in wet H 2S-contained hydrogen fuels with H 2S concentration gradually increased from 5 to 50 ppm. The EDS and XPS results demonstrated that no element S was detectable after sulfur poisoning testing. High water adsorption ability of BaO could be the primary reason for the high sulfur tolerance. The obtained results confirmed the previous conclusion that BaO/Ni interfaces can resist not only deactivation by coking but also sulfur poisoning of a conventional Ni-YSZ anode.

AB - The anodic performances of Ni-Y 2O 3 stabilized ZrO 2 (Ni-YSZ) modified by alkaline earth metal oxide BaO were investigated for solid oxide fuel cells operating in H 2S-containing hydrogen fuels. The XRF and EDS results indicated that the amount of BaO was about 5%. The cell with BaO/Ni-YSZ anode exhibited almost constant peak power densities when the fuel was switched from wet hydrogen to 50 ppm H 2S contaminated wet hydrogen and good stability in wet H 2S-contained hydrogen fuels with H 2S concentration gradually increased from 5 to 50 ppm. The EDS and XPS results demonstrated that no element S was detectable after sulfur poisoning testing. High water adsorption ability of BaO could be the primary reason for the high sulfur tolerance. The obtained results confirmed the previous conclusion that BaO/Ni interfaces can resist not only deactivation by coking but also sulfur poisoning of a conventional Ni-YSZ anode.

KW - Alkaline earth metal oxide

KW - Catalyst infiltration

KW - Nickel anode

KW - Solid oxide fuel cell

KW - Sulfur tolerance

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DO - 10.1016/j.elecom.2012.03.027

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SN - 1388-2481

VL - 19

SP - 63

EP - 66

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 1

ER -

Sulfur tolerance improvement of Ni-YSZ anode by alkaline earth metal oxide BaO for solid oxide fuel cells

Abstract

Keywords

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