Correlations between electrochemical resistances and surface properties of acid-treated fuel in coal fuel cells

S Eom, S Ahn, K Kang, G Choi - Energy, 2017 - Elsevier
Herein, we investigate the relationship between fuel surface properties and inner
resistances of direct carbon fuel cells (DCFCs) by subjecting raw coal to a liquid-phase …

Effect of fuel acid treatment on the reduction of electrochemical resistance in a direct carbon fuel cell system

S Eom, S Ahn, G Choi - Energy & Fuels, 2021 - ACS Publications
In this study, we investigate the effect of surface characteristics on the electrochemical
resistance of various grades of coal, ie, Glencore (bituminous) and Adaro (sub-bituminous) …

Modification of coal as a fuel for the direct carbon fuel cell

X Li, Z Zhu, R De Marco, J Bradley… - The Journal of Physical …, 2010 - ACS Publications
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 …

Comparison of the electrochemical reaction parameter of graphite and sub-bituminous coal in a direct carbon fuel cell

S Eom, J Cho, S Ahn, Y Sung, G Choi, D Kim - Energy & Fuels, 2016 - ACS Publications
A direct carbon fuel cell (DCFC) system directly converts the chemical energy of solid
carbonaceous fuel into electrical energy. The electrochemical reaction of this system has an …

Modeling electrochemical resistance with coal surface properties in a direct carbon fuel cell based on molten carbonate

S Eom, S Ahn, K Kang, G Choi - Journal of Power Sources, 2017 - Elsevier
In this study, a numerical model of activation and ohmic polarization is modified, taking into
account the correlation function between surface properties and inner resistance. To …

The synergistic catalyst-carbonates effect on the direct bituminous coal fuel cell performance

N Kaklidis, R Strandbakke, A Arenillas… - International Journal of …, 2019 - Elsevier
The current work explores the feasibility to improve the performance of a Direct Carbon Fuel
Cell (DCFC): CO 2+ bituminous coal| Co-CeO 2/YSZ/Ag| Air by infusing a gasification …

Intrinsic solid-state reaction characteristics of coals and chars in a direct carbon fuel cell: with focus on significance assessment of fuel-borne factors

C Li, H Yi, S Eom, G Choi, TY Choi, D Lee - Energy & Fuels, 2020 - ACS Publications
In this study, we attempted to evaluate relative significance of the factors that have been
proposed to affect the electrochemical reaction of coals in a direct carbon fuel cell (DCFC) …

Durable power performance of a direct ash-free coal fuel cell

HK Ju, J Eom, JK Lee, H Choi, TH Lim, RH Song… - Electrochimica …, 2014 - Elsevier
We have investigated the comparable performance of raw and ash-free coal in the operation
of a direct carbon fuel cell (DCFC). The various structural and morphological analyses using …

Effect of fuel thermal pretreament on the electrochemical performance of a direct lignite coal fuel cell

N Kaklidis, V Kyriakou, GE Marnellos, R Strandbakke… - Solid State Ionics, 2016 - Elsevier
The impact of fuel heat pretreatment on the performance of a direct carbon fuel cell (DCFC)
is investigated by utilizing lignite (LG) coal as feedstock in a solid oxide fuel cell of the type …

Evaluation of raw coals as fuels for direct carbon fuel cells

X Li, Z Zhu, R De Marco, J Bradley, A Dicks - Journal of Power Sources, 2010 - Elsevier
As a promising high-temperature fuel cell, the direct carbon fuel cell (DCFC) has a much
higher efficiency and lower emissions compared with conventional coal-fired power plants …