Ni/C Slurries Based on Molten Carbonates as a Fuel for Hybrid Direct Carbon Fuel Cells

Yuta Nabae; Kevin D. Pointon; John T. S. Irvine

doi:10.1149/1.3110862

Ni/C Slurries Based on Molten Carbonates as a Fuel for Hybrid Direct Carbon Fuel Cells

Yuta Nabae^*, Kevin D. Pointon, John T. S. Irvine

^*Corresponding author for this work

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

Abstract

Ni-impregnated carbon black (Ni/XC-72R) was tested as a fuel for a hybrid direct carbon fuel cell (HDCFC) with a hybrid electrolyte of yttria-stabilized zirconia and molten carbonate (Li(2)CO(3)/K(2)CO(3)). The open-circuit voltage (OCV) of the HDCFC with Ni/XC-72R was quite high, about 1.5 V at 700 degrees C. The maximum power density was improved by factors of 7.6 and 3.1, respectively, at 550 and 700 degrees C by adding 50 wt % of Ni catalyst. The effect of the Ni catalyst on the carbon/carbonate slurry was investigated by temperature-programmed decomposition. The Ni catalyst probably contributes to the high OCV by enhancing the reverse Boudouard reaction (C+CO(2)-> 2CO) in the carbon/carbonate slurry in the HDCFC.

Original language	English
Pages (from-to)	B716-B720
Number of pages	5
Journal	Journal of The Electrochemical Society
Volume	156
Issue number	6
DOIs	https://doi.org/10.1149/1.3110862
Publication status	Published - 2009

Keywords

SOLID OXIDE
electrochemical electrodes
molten carbonate fuel cells
electrolytes
catalysts
ELECTROCHEMICAL OXIDATION
electrochemistry
zirconium compounds
decomposition
carbon
lithium compounds
nickel
potassium compounds
yttrium compounds
CONVERSION

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10.1149/1.3110862

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Tao, S. (CoI)
EPSRC
1/01/08 → 31/12/12
Project: Standard

Cite this

@article{9539ecdcd216456ebf03ef476c74869c,

title = "Ni/C Slurries Based on Molten Carbonates as a Fuel for Hybrid Direct Carbon Fuel Cells",

abstract = "Ni-impregnated carbon black (Ni/XC-72R) was tested as a fuel for a hybrid direct carbon fuel cell (HDCFC) with a hybrid electrolyte of yttria-stabilized zirconia and molten carbonate (Li(2)CO(3)/K(2)CO(3)). The open-circuit voltage (OCV) of the HDCFC with Ni/XC-72R was quite high, about 1.5 V at 700 degrees C. The maximum power density was improved by factors of 7.6 and 3.1, respectively, at 550 and 700 degrees C by adding 50 wt % of Ni catalyst. The effect of the Ni catalyst on the carbon/carbonate slurry was investigated by temperature-programmed decomposition. The Ni catalyst probably contributes to the high OCV by enhancing the reverse Boudouard reaction (C+CO(2)-> 2CO) in the carbon/carbonate slurry in the HDCFC.",

keywords = "SOLID OXIDE, electrochemical electrodes, molten carbonate fuel cells, electrolytes, catalysts, ELECTROCHEMICAL OXIDATION, electrochemistry, zirconium compounds, decomposition, carbon, lithium compounds, nickel, potassium compounds, yttrium compounds, CONVERSION",

author = "Yuta Nabae and Pointon, {Kevin D.} and Irvine, {John T. S.}",

year = "2009",

doi = "10.1149/1.3110862",

language = "English",

volume = "156",

pages = "B716--B720",

journal = "Journal of The Electrochemical Society",

issn = "0013-4651",

publisher = "IOP Publishing Ltd.",

number = "6",

}

TY - JOUR

T1 - Ni/C Slurries Based on Molten Carbonates as a Fuel for Hybrid Direct Carbon Fuel Cells

AU - Nabae, Yuta

AU - Pointon, Kevin D.

AU - Irvine, John T. S.

PY - 2009

Y1 - 2009

N2 - Ni-impregnated carbon black (Ni/XC-72R) was tested as a fuel for a hybrid direct carbon fuel cell (HDCFC) with a hybrid electrolyte of yttria-stabilized zirconia and molten carbonate (Li(2)CO(3)/K(2)CO(3)). The open-circuit voltage (OCV) of the HDCFC with Ni/XC-72R was quite high, about 1.5 V at 700 degrees C. The maximum power density was improved by factors of 7.6 and 3.1, respectively, at 550 and 700 degrees C by adding 50 wt % of Ni catalyst. The effect of the Ni catalyst on the carbon/carbonate slurry was investigated by temperature-programmed decomposition. The Ni catalyst probably contributes to the high OCV by enhancing the reverse Boudouard reaction (C+CO(2)-> 2CO) in the carbon/carbonate slurry in the HDCFC.

AB - Ni-impregnated carbon black (Ni/XC-72R) was tested as a fuel for a hybrid direct carbon fuel cell (HDCFC) with a hybrid electrolyte of yttria-stabilized zirconia and molten carbonate (Li(2)CO(3)/K(2)CO(3)). The open-circuit voltage (OCV) of the HDCFC with Ni/XC-72R was quite high, about 1.5 V at 700 degrees C. The maximum power density was improved by factors of 7.6 and 3.1, respectively, at 550 and 700 degrees C by adding 50 wt % of Ni catalyst. The effect of the Ni catalyst on the carbon/carbonate slurry was investigated by temperature-programmed decomposition. The Ni catalyst probably contributes to the high OCV by enhancing the reverse Boudouard reaction (C+CO(2)-> 2CO) in the carbon/carbonate slurry in the HDCFC.

KW - SOLID OXIDE

KW - electrochemical electrodes

KW - molten carbonate fuel cells

KW - electrolytes

KW - catalysts

KW - ELECTROCHEMICAL OXIDATION

KW - electrochemistry

KW - zirconium compounds

KW - decomposition

KW - carbon

KW - lithium compounds

KW - nickel

KW - potassium compounds

KW - yttrium compounds

KW - CONVERSION

U2 - 10.1149/1.3110862

DO - 10.1149/1.3110862

M3 - Article

SN - 0013-4651

VL - 156

SP - B716-B720

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

IS - 6

ER -

Ni/C Slurries Based on Molten Carbonates as a Fuel for Hybrid Direct Carbon Fuel Cells

Abstract

Keywords

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Projects

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology

Cite this