A comparative study of different carbon fuels in an electrolyte-supported hybrid direct carbon fuel cell

Xiaoyong Xu; Wei Zhou; Fengli Liang; Zhonghua Zhu

doi:10.1016/j.apenergy.2013.03.053

A comparative study of different carbon fuels in an electrolyte-supported hybrid direct carbon fuel cell

Xiaoyong Xu, Wei Zhou, Fengli Liang, Zhonghua Zhu

University of Queensland

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

66 Scopus citations

Abstract

An electrolyte-supported hybrid direct carbon fuel cell (DCFC) was used to evaluate the performance of different carbon fuels in this study. The direct carbon fuel cell consists of a samarium doped ceria (SDC) electrolyte, a Ni/SDC anode and a Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ cathode. Three types of carbon (graphite, coal and activated carbon) and three particle sizes of activated carbon (70, 250 and 500μm) were investigated at 650-750°C. The electrochemical reactivity of these three types of carbon fuels was in the order of activated carbon>German creek coal>graphite. Sulphur in German creek coal has poisoning effect on Ni catalyst resulting in lower power density of the fuel cells. The activated carbon (250μm) fuelled hybrid DCFC achieved a peak power density of 158.3mWcm^-2 at 750°C along with the maximum current density of 561.5mAcm^-2. However, the stability of the hybrid DCFC is poor and need to be improved at the present.

Original language	English
Pages (from-to)	402-409
Number of pages	8
Journal	Applied Energy
Volume	108
DOIs	https://doi.org/10.1016/j.apenergy.2013.03.053
State	Published - Aug 2013
Externally published	Yes

Keywords

Carbonates
Direct carbon fuel cell
Electrolyte-supported fuel cell
Solid carbon

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title = "A comparative study of different carbon fuels in an electrolyte-supported hybrid direct carbon fuel cell",

abstract = "An electrolyte-supported hybrid direct carbon fuel cell (DCFC) was used to evaluate the performance of different carbon fuels in this study. The direct carbon fuel cell consists of a samarium doped ceria (SDC) electrolyte, a Ni/SDC anode and a Ba0.5Sr0.5Co0.8Fe0.2O3-δ cathode. Three types of carbon (graphite, coal and activated carbon) and three particle sizes of activated carbon (70, 250 and 500μm) were investigated at 650-750°C. The electrochemical reactivity of these three types of carbon fuels was in the order of activated carbon>German creek coal>graphite. Sulphur in German creek coal has poisoning effect on Ni catalyst resulting in lower power density of the fuel cells. The activated carbon (250μm) fuelled hybrid DCFC achieved a peak power density of 158.3mWcm-2 at 750°C along with the maximum current density of 561.5mAcm-2. However, the stability of the hybrid DCFC is poor and need to be improved at the present.",

keywords = "Carbonates, Direct carbon fuel cell, Electrolyte-supported fuel cell, Solid carbon",

author = "Xiaoyong Xu and Wei Zhou and Fengli Liang and Zhonghua Zhu",

year = "2013",

month = aug,

doi = "10.1016/j.apenergy.2013.03.053",

language = "英语",

volume = "108",

pages = "402--409",

journal = "Applied Energy",

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T1 - A comparative study of different carbon fuels in an electrolyte-supported hybrid direct carbon fuel cell

AU - Xu, Xiaoyong

AU - Zhou, Wei

AU - Liang, Fengli

AU - Zhu, Zhonghua

PY - 2013/8

Y1 - 2013/8

N2 - An electrolyte-supported hybrid direct carbon fuel cell (DCFC) was used to evaluate the performance of different carbon fuels in this study. The direct carbon fuel cell consists of a samarium doped ceria (SDC) electrolyte, a Ni/SDC anode and a Ba0.5Sr0.5Co0.8Fe0.2O3-δ cathode. Three types of carbon (graphite, coal and activated carbon) and three particle sizes of activated carbon (70, 250 and 500μm) were investigated at 650-750°C. The electrochemical reactivity of these three types of carbon fuels was in the order of activated carbon>German creek coal>graphite. Sulphur in German creek coal has poisoning effect on Ni catalyst resulting in lower power density of the fuel cells. The activated carbon (250μm) fuelled hybrid DCFC achieved a peak power density of 158.3mWcm-2 at 750°C along with the maximum current density of 561.5mAcm-2. However, the stability of the hybrid DCFC is poor and need to be improved at the present.

AB - An electrolyte-supported hybrid direct carbon fuel cell (DCFC) was used to evaluate the performance of different carbon fuels in this study. The direct carbon fuel cell consists of a samarium doped ceria (SDC) electrolyte, a Ni/SDC anode and a Ba0.5Sr0.5Co0.8Fe0.2O3-δ cathode. Three types of carbon (graphite, coal and activated carbon) and three particle sizes of activated carbon (70, 250 and 500μm) were investigated at 650-750°C. The electrochemical reactivity of these three types of carbon fuels was in the order of activated carbon>German creek coal>graphite. Sulphur in German creek coal has poisoning effect on Ni catalyst resulting in lower power density of the fuel cells. The activated carbon (250μm) fuelled hybrid DCFC achieved a peak power density of 158.3mWcm-2 at 750°C along with the maximum current density of 561.5mAcm-2. However, the stability of the hybrid DCFC is poor and need to be improved at the present.

KW - Carbonates

KW - Direct carbon fuel cell

KW - Electrolyte-supported fuel cell

KW - Solid carbon

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U2 - 10.1016/j.apenergy.2013.03.053

DO - 10.1016/j.apenergy.2013.03.053

M3 - 文章

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SN - 0306-2619

VL - 108

SP - 402

EP - 409

JO - Applied Energy

JF - Applied Energy

ER -

A comparative study of different carbon fuels in an electrolyte-supported hybrid direct carbon fuel cell

Abstract

Keywords

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