A rapid preparation of acicular Ni impregnated anode with enhanced conductivity and operational stability

Xingbao Zhu; Chengzhi Guan; Zhe Lü; Bo Wei; Yiqian Li; Wenhui Su

doi:10.1016/j.jpowsour.2014.01.058

A rapid preparation of acicular Ni impregnated anode with enhanced conductivity and operational stability

Xingbao Zhu^*
, Chengzhi Guan
, Zhe Lü
, Bo Wei
, Yiqian Li
, Wenhui Su

^*Corresponding author for this work

Harbin Institute of Technology
Chinese Academy of Sciences

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

8 Citations (Scopus)

Abstract

A novel method for fabricating Ni(NO₃)₂ solution impregnated YSZ (YSZ: Yttria Stabilized Zirconia) anodes for solid oxide fuel cells (SOFCs) is presented. In order to reduce the impregnation cycles and increase the reliability of the YSZ membrane, a YSZ support with a porosity of ∼60% is soaked in a saturated Ni(NO₃)₂ solution with an increased temperature of 80 C. The impregnated anode is dried in a vacuum drying device without heating, resulting in a flower-like Ni(NO ₃)₂·6H₂O crystal. The formed porous structure is likely to facilitate the impregnating process and considered to be the key to success of the impregnation process with saturated solution. After heating at 700 C, a novel needle-shaped NiO is presented, which exhibits some advantages including fast preparation, high connectivity, large specific surface area and high operational stability (i.e. high aggregation resistance). For the purpose of comparison, Ni(NO₃)₂ solution impregnated YSZ anodes prepared through the conventional impregnation process are also characterized under the same conditions.

Original language	English
Pages (from-to)	424-429
Number of pages	6
Journal	Journal of Power Sources
Volume	256
DOIs	https://doi.org/10.1016/j.jpowsour.2014.01.058
Publication status	Published - 15 Jun 2014
Externally published	Yes

Keywords

Infiltration
Microstructure
Nano-anode
Needle-shaped
Solid oxide fuel cell
Vacuum drying

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10.1016/j.jpowsour.2014.01.058

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title = "A rapid preparation of acicular Ni impregnated anode with enhanced conductivity and operational stability",

abstract = "A novel method for fabricating Ni(NO3)2 solution impregnated YSZ (YSZ: Yttria Stabilized Zirconia) anodes for solid oxide fuel cells (SOFCs) is presented. In order to reduce the impregnation cycles and increase the reliability of the YSZ membrane, a YSZ support with a porosity of ∼60\% is soaked in a saturated Ni(NO3)2 solution with an increased temperature of 80 C. The impregnated anode is dried in a vacuum drying device without heating, resulting in a flower-like Ni(NO 3)2·6H2O crystal. The formed porous structure is likely to facilitate the impregnating process and considered to be the key to success of the impregnation process with saturated solution. After heating at 700 C, a novel needle-shaped NiO is presented, which exhibits some advantages including fast preparation, high connectivity, large specific surface area and high operational stability (i.e. high aggregation resistance). For the purpose of comparison, Ni(NO3)2 solution impregnated YSZ anodes prepared through the conventional impregnation process are also characterized under the same conditions.",

keywords = "Infiltration, Microstructure, Nano-anode, Needle-shaped, Solid oxide fuel cell, Vacuum drying",

author = "Xingbao Zhu and Chengzhi Guan and Zhe L{\"u} and Bo Wei and Yiqian Li and Wenhui Su",

year = "2014",

month = jun,

day = "15",

doi = "10.1016/j.jpowsour.2014.01.058",

language = "English",

volume = "256",

pages = "424--429",

journal = "Journal of Power Sources",

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T1 - A rapid preparation of acicular Ni impregnated anode with enhanced conductivity and operational stability

AU - Zhu, Xingbao

AU - Guan, Chengzhi

AU - Lü, Zhe

AU - Wei, Bo

AU - Li, Yiqian

AU - Su, Wenhui

PY - 2014/6/15

Y1 - 2014/6/15

N2 - A novel method for fabricating Ni(NO3)2 solution impregnated YSZ (YSZ: Yttria Stabilized Zirconia) anodes for solid oxide fuel cells (SOFCs) is presented. In order to reduce the impregnation cycles and increase the reliability of the YSZ membrane, a YSZ support with a porosity of ∼60% is soaked in a saturated Ni(NO3)2 solution with an increased temperature of 80 C. The impregnated anode is dried in a vacuum drying device without heating, resulting in a flower-like Ni(NO 3)2·6H2O crystal. The formed porous structure is likely to facilitate the impregnating process and considered to be the key to success of the impregnation process with saturated solution. After heating at 700 C, a novel needle-shaped NiO is presented, which exhibits some advantages including fast preparation, high connectivity, large specific surface area and high operational stability (i.e. high aggregation resistance). For the purpose of comparison, Ni(NO3)2 solution impregnated YSZ anodes prepared through the conventional impregnation process are also characterized under the same conditions.

AB - A novel method for fabricating Ni(NO3)2 solution impregnated YSZ (YSZ: Yttria Stabilized Zirconia) anodes for solid oxide fuel cells (SOFCs) is presented. In order to reduce the impregnation cycles and increase the reliability of the YSZ membrane, a YSZ support with a porosity of ∼60% is soaked in a saturated Ni(NO3)2 solution with an increased temperature of 80 C. The impregnated anode is dried in a vacuum drying device without heating, resulting in a flower-like Ni(NO 3)2·6H2O crystal. The formed porous structure is likely to facilitate the impregnating process and considered to be the key to success of the impregnation process with saturated solution. After heating at 700 C, a novel needle-shaped NiO is presented, which exhibits some advantages including fast preparation, high connectivity, large specific surface area and high operational stability (i.e. high aggregation resistance). For the purpose of comparison, Ni(NO3)2 solution impregnated YSZ anodes prepared through the conventional impregnation process are also characterized under the same conditions.

KW - Infiltration

KW - Microstructure

KW - Nano-anode

KW - Needle-shaped

KW - Solid oxide fuel cell

KW - Vacuum drying

UR - https://www.scopus.com/pages/publications/84894121118

U2 - 10.1016/j.jpowsour.2014.01.058

DO - 10.1016/j.jpowsour.2014.01.058

M3 - Article

AN - SCOPUS:84894121118

SN - 0378-7753

VL - 256

SP - 424

EP - 429

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

A rapid preparation of acicular Ni impregnated anode with enhanced conductivity and operational stability

Abstract

Keywords

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