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Modification of Coal as a Fuel for the Direct Carbon Fuel Cell
Journal article   Peer reviewed

Modification of Coal as a Fuel for the Direct Carbon Fuel Cell

X Li, Z Zhu, Roland De Marco, John Bradley and A Dicks
Journal of Physical Chemistry Part A, Vol.114(11), p.3855–3862
2010
DOI: https://doi.org/10.1021/jp9062719
url
https://doi.org/10.1021/jp9062719View
Published Version

Abstract

high temperature fuel cells direct carbon fuel cell electrochemical performance of coal
As a promising high-temperature fuel cell, the direct carbon fuel cell (DCFC) has a much higher efficiency and a lower emission as compared with conventional coal-fired power plants. To develop an increased understanding of the relationship between the microstructure, surface chemistry, and electrochemical performance of coal as a fuel for the DCFC, a coal sample from Central Queensland has been subjected to various pretreatments, including acid washing, air oxidation, and pyrolysis. It has been found that an acid treatment of the coal enhanced its electrochemical reactivity due to an increase in oxygen-containing surface functional groups. By contrast, heat treatment of the coal results in a sharp decrease in the electrochemical reactivity in the DCFC due to a decrease in the oxygen-containing surface functional groups, particularly CO2-yielding surface groups. A higher surface area of coal may also be helpful, but much less important than surface chemistry.

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Domestic collaboration
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Chemistry, Physical
Physics, Atomic, Molecular & Chemical

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#7 Affordable and Clean Energy

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