Coking-resistant NbOx-Ni-Ce0.8Sm0.2O1.9 anode material for methanol-fueled solid oxide fuel cells

Xueli Yao; Lijun Fan; Tian Gan; Nianjun Hou; Ping Li; Yicheng Zhao; Yongdan Li

doi:10.1016/j.ijhydene.2018.03.186

Coking-resistant NbO_x-Ni-Ce_0.8Sm_0.2O_1.9 anode material for methanol-fueled solid oxide fuel cells

Xueli Yao, Lijun Fan, Tian Gan, Nianjun Hou, Ping Li, Yicheng Zhao^*, Yongdan Li

^*Corresponding author for this work

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

14 Citations (Scopus)

Abstract

NbO_x is added in Ni-Ce_0.8Sm_0.2O_1.9 by impregnation as an anode material for solid oxide fuel cells fed with methanol. Nb (IV) and Nb (V) exist in the reduced anode. The addition of Nb reduces the binding energy of Ni. The catalytic activity of the anode and the performance of the single cell both increase with the increase of Nb. At 700 °C, the cell with 5NbO_x-Ni-Ce_0.8Sm_0.2O_1.9 anode and Ce_0.8Sm_0.2O_1.9-carbonate electrolyte shows a output power density of 687 mW cm⁻². Meanwhile, water produced in the anode is absorbed by NbO_x and forms surface hydroxyl groups, which facilitates the removal of carbon. The addition of NbO_x decreases the amount of deposited carbon in the humidified methanol atmosphere significantly, and an improved stability of the single cell is achieved.

Original language	English
Pages (from-to)	12748-12755
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	43
Issue number	28
DOIs	https://doi.org/10.1016/j.ijhydene.2018.03.186
Publication status	Published - 12 Jul 2018
MoE publication type	A1 Journal article-refereed

Keywords

Cermet anode
Coking resistance
Methanol
Niobium oxide
Solid oxide fuel cell

UN SDGs

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

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10.1016/j.ijhydene.2018.03.186

Cite this

@article{5d6660b9933847ee8e95075d3dd3426a,

title = "Coking-resistant NbOx-Ni-Ce0.8Sm0.2O1.9 anode material for methanol-fueled solid oxide fuel cells",

abstract = "NbOx is added in Ni-Ce0.8Sm0.2O1.9 by impregnation as an anode material for solid oxide fuel cells fed with methanol. Nb (IV) and Nb (V) exist in the reduced anode. The addition of Nb reduces the binding energy of Ni. The catalytic activity of the anode and the performance of the single cell both increase with the increase of Nb. At 700 °C, the cell with 5NbOx-Ni-Ce0.8Sm0.2O1.9 anode and Ce0.8Sm0.2O1.9-carbonate electrolyte shows a output power density of 687 mW cm−2. Meanwhile, water produced in the anode is absorbed by NbOx and forms surface hydroxyl groups, which facilitates the removal of carbon. The addition of NbOx decreases the amount of deposited carbon in the humidified methanol atmosphere significantly, and an improved stability of the single cell is achieved.",

keywords = "Cermet anode, Coking resistance, Methanol, Niobium oxide, Solid oxide fuel cell",

author = "Xueli Yao and Lijun Fan and Tian Gan and Nianjun Hou and Ping Li and Yicheng Zhao and Yongdan Li",

year = "2018",

month = jul,

day = "12",

doi = "10.1016/j.ijhydene.2018.03.186",

language = "English",

volume = "43",

pages = "12748--12755",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

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TY - JOUR

T1 - Coking-resistant NbOx-Ni-Ce0.8Sm0.2O1.9 anode material for methanol-fueled solid oxide fuel cells

AU - Yao, Xueli

AU - Fan, Lijun

AU - Gan, Tian

AU - Hou, Nianjun

AU - Li, Ping

AU - Zhao, Yicheng

AU - Li, Yongdan

PY - 2018/7/12

Y1 - 2018/7/12

N2 - NbOx is added in Ni-Ce0.8Sm0.2O1.9 by impregnation as an anode material for solid oxide fuel cells fed with methanol. Nb (IV) and Nb (V) exist in the reduced anode. The addition of Nb reduces the binding energy of Ni. The catalytic activity of the anode and the performance of the single cell both increase with the increase of Nb. At 700 °C, the cell with 5NbOx-Ni-Ce0.8Sm0.2O1.9 anode and Ce0.8Sm0.2O1.9-carbonate electrolyte shows a output power density of 687 mW cm−2. Meanwhile, water produced in the anode is absorbed by NbOx and forms surface hydroxyl groups, which facilitates the removal of carbon. The addition of NbOx decreases the amount of deposited carbon in the humidified methanol atmosphere significantly, and an improved stability of the single cell is achieved.

AB - NbOx is added in Ni-Ce0.8Sm0.2O1.9 by impregnation as an anode material for solid oxide fuel cells fed with methanol. Nb (IV) and Nb (V) exist in the reduced anode. The addition of Nb reduces the binding energy of Ni. The catalytic activity of the anode and the performance of the single cell both increase with the increase of Nb. At 700 °C, the cell with 5NbOx-Ni-Ce0.8Sm0.2O1.9 anode and Ce0.8Sm0.2O1.9-carbonate electrolyte shows a output power density of 687 mW cm−2. Meanwhile, water produced in the anode is absorbed by NbOx and forms surface hydroxyl groups, which facilitates the removal of carbon. The addition of NbOx decreases the amount of deposited carbon in the humidified methanol atmosphere significantly, and an improved stability of the single cell is achieved.

KW - Cermet anode

KW - Coking resistance

KW - Methanol

KW - Niobium oxide

KW - Solid oxide fuel cell

UR - http://www.scopus.com/inward/record.url?scp=85045710060&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2018.03.186

DO - 10.1016/j.ijhydene.2018.03.186

M3 - Article

AN - SCOPUS:85045710060

SN - 0360-3199

VL - 43

SP - 12748

EP - 12755

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 28

ER -

Coking-resistant NbO_x-Ni-Ce_0.8Sm_0.2O_1.9 anode material for methanol-fueled solid oxide fuel cells

Abstract

Keywords

UN SDGs

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Cite this

Coking-resistant NbOx-Ni-Ce0.8Sm0.2O1.9 anode material for methanol-fueled solid oxide fuel cells

Abstract

Keywords

UN SDGs

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Coking-resistant NbO_x-Ni-Ce_0.8Sm_0.2O_1.9 anode material for methanol-fueled solid oxide fuel cells