Effects of manganese oxides on the activity and stability of Ni-Ce0.8Sm0.2O1.9 anode for solid oxide fuel cells with methanol as the fuel

Tian Gan; Guochang Ding; Boran Chen; Xiaojing Zhi; Ping Li; Xueli Yao; Nianjun Hou; Lijun Fan; Yicheng Zhao; Yongdan Li

doi:10.1016/j.cattod.2018.01.014

Effects of manganese oxides on the activity and stability of Ni-Ce_0.8Sm_0.2O_1.9 anode for solid oxide fuel cells with methanol as the fuel

Tian Gan, Guochang Ding, Boran Chen, Xiaojing Zhi, Ping Li, Xueli Yao, Nianjun Hou, Lijun Fan, Yicheng Zhao^*, Yongdan Li

^*Corresponding author for this work

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

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Abstract

Ni-MnO_x-Ce_0.8Sm_0.2O_1.9 (SDC) composites are synthesized and investigated as anode materials of solid oxide fuel cells fed with methanol. The lowest anodic polarization resistance is obtained when the molar ratio of Mn to Ni is 0.05:0.95. The high catalytic activity is attributed to the transfer of electrons from Ni to Mn and the increase of the content of the lattice oxygen in the anode. The single cell with that anode and SDC-carbonate composite electrolyte exhibits a maximum power density of 722 mW cm^-2 at 700 °C. Mn also increases the resistance to carbon deposition of the anode due to the high lattice oxygen content and the redox cycle of the Mn species. The stability of the single cell is enhanced with the increase of the content of Mn in the anode.

Original language	English
Pages (from-to)	222-227
Number of pages	6
Journal	Catalysis Today
Volume	330
Early online date	11 Jan 2018
DOIs	https://doi.org/10.1016/j.cattod.2018.01.014
Publication status	Published - 15 Jun 2019
MoE publication type	A1 Journal article-refereed

Keywords

Anode
Carbon deposition
Lattice oxygen
Manganese oxides
Methanol electro-oxidation
Solid oxide fuel cell

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10.1016/j.cattod.2018.01.014

CHEM_Gan_et_al_Effects_of_manganese_oxides_2019_Catalysis_TodayAccepted author manuscript, 1.51 MBLicence: CC BY-NC-ND

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title = "Effects of manganese oxides on the activity and stability of Ni-Ce0.8Sm0.2O1.9 anode for solid oxide fuel cells with methanol as the fuel",

abstract = "Ni-MnOx-Ce0.8Sm0.2O1.9 (SDC) composites are synthesized and investigated as anode materials of solid oxide fuel cells fed with methanol. The lowest anodic polarization resistance is obtained when the molar ratio of Mn to Ni is 0.05:0.95. The high catalytic activity is attributed to the transfer of electrons from Ni to Mn and the increase of the content of the lattice oxygen in the anode. The single cell with that anode and SDC-carbonate composite electrolyte exhibits a maximum power density of 722 mW cm-2 at 700 °C. Mn also increases the resistance to carbon deposition of the anode due to the high lattice oxygen content and the redox cycle of the Mn species. The stability of the single cell is enhanced with the increase of the content of Mn in the anode.",

keywords = "Anode, Carbon deposition, Lattice oxygen, Manganese oxides, Methanol electro-oxidation, Solid oxide fuel cell",

author = "Tian Gan and Guochang Ding and Boran Chen and Xiaojing Zhi and Ping Li and Xueli Yao and Nianjun Hou and Lijun Fan and Yicheng Zhao and Yongdan Li",

year = "2019",

month = jun,

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doi = "10.1016/j.cattod.2018.01.014",

language = "English",

volume = "330",

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journal = "Catalysis Today",

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T1 - Effects of manganese oxides on the activity and stability of Ni-Ce0.8Sm0.2O1.9 anode for solid oxide fuel cells with methanol as the fuel

AU - Gan, Tian

AU - Ding, Guochang

AU - Chen, Boran

AU - Zhi, Xiaojing

AU - Li, Ping

AU - Yao, Xueli

AU - Hou, Nianjun

AU - Fan, Lijun

AU - Zhao, Yicheng

AU - Li, Yongdan

PY - 2019/6/15

Y1 - 2019/6/15

N2 - Ni-MnOx-Ce0.8Sm0.2O1.9 (SDC) composites are synthesized and investigated as anode materials of solid oxide fuel cells fed with methanol. The lowest anodic polarization resistance is obtained when the molar ratio of Mn to Ni is 0.05:0.95. The high catalytic activity is attributed to the transfer of electrons from Ni to Mn and the increase of the content of the lattice oxygen in the anode. The single cell with that anode and SDC-carbonate composite electrolyte exhibits a maximum power density of 722 mW cm-2 at 700 °C. Mn also increases the resistance to carbon deposition of the anode due to the high lattice oxygen content and the redox cycle of the Mn species. The stability of the single cell is enhanced with the increase of the content of Mn in the anode.

AB - Ni-MnOx-Ce0.8Sm0.2O1.9 (SDC) composites are synthesized and investigated as anode materials of solid oxide fuel cells fed with methanol. The lowest anodic polarization resistance is obtained when the molar ratio of Mn to Ni is 0.05:0.95. The high catalytic activity is attributed to the transfer of electrons from Ni to Mn and the increase of the content of the lattice oxygen in the anode. The single cell with that anode and SDC-carbonate composite electrolyte exhibits a maximum power density of 722 mW cm-2 at 700 °C. Mn also increases the resistance to carbon deposition of the anode due to the high lattice oxygen content and the redox cycle of the Mn species. The stability of the single cell is enhanced with the increase of the content of Mn in the anode.

KW - Anode

KW - Carbon deposition

KW - Lattice oxygen

KW - Manganese oxides

KW - Methanol electro-oxidation

KW - Solid oxide fuel cell

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U2 - 10.1016/j.cattod.2018.01.014

DO - 10.1016/j.cattod.2018.01.014

M3 - Article

AN - SCOPUS:85040595443

SN - 0920-5861

VL - 330

SP - 222

EP - 227

JO - Catalysis Today

JF - Catalysis Today

ER -

Effects of manganese oxides on the activity and stability of Ni-Ce_0.8Sm_0.2O_1.9 anode for solid oxide fuel cells with methanol as the fuel

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Keywords

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