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

被引：53

作者：

Ju, HyungKuk ^{[1
]}

Eom, Jiyoung ^{[1
]}

Lee, Jae Kwang ^{[2
]}

Choi, Hokyung ^{[3
]}

Lim, Tak-Hyoung ^{[4
]}

Song, Rak-Hyun ^{[4
]}

Lee, Jaeyoung ^{[1
,2
]}

机构：

[1] Gwangju Inst Sci & Technol GIST, Sch Environm Sci & Engn, Kwangju 500712, South Korea

[2] GIST, Res Inst Solar & Sustainable Energies RISE, Ertl Ctr Electrochem & Catalysis, Kwangju 500712, South Korea

[3] Korea Inst Energy Res, Clean Fuel Ctr, Taejon 305343, South Korea

[4] KIER, Hydrogen & Fuel Cell Dept, Taejon 305343, South Korea

来源：

ELECTROCHIMICA ACTA | 2014年 / 115卷

关键词：

Direct carbon fuel cell; Ash-free coal; Raw coal; Durability; Impurity; CARBON FUELS; ANODE; CONVERSION; SOFC; OXIDATION; CHAR;

D O I：

10.1016/j.electacta.2013.10.124

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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 SEM, TEM, EDX, XPS, XRD, and TGA are carried out to study the distinct physicochemical properties of coals. Due to contained volatile organic compounds, raw coal generates about a two-fold higher fuel cell performance compare to ash-free coal below a reaction temperature of 750 degrees C. However, over a cell temperature of 900 degrees C, both of them reach a similar power density of 170 mW cm(-2). In the long-term operation of a DCFC, we observe a distinctly more durable power performance using ash-free coal than that of raw coal. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：511 / 517

页数：7

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