TY - JOUR
T1 - Cu-modified Ni foams as three-dimensional outer anodes for high-performance hybrid direct coal fuel cells
AU - Xie, Heping
AU - Zhai, Shuo
AU - Liu, Tao
AU - Liao, Hailong
AU - Zhang, Yuan
AU - Zhou, Wei
AU - Shao, Zongping
AU - Ni, Meng
AU - Chen, Bin
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China (Grant No. 51827901, No. 52006150), Natural Science Foundation of SZU (Grant No. 2019087), Sichuan Science and Technology Department (Grant No. 2020YFH0012) and Department of Science and Technology of Guangdong Province (No. 2019ZT08G315). We also thank the Institute of New Energy and Low-Carbon Technology of Sichuan Univerisity, Clean Energy Research Institute of Shenzhen, and Electron Micro scope Center of Shenzhen Univeristy for help in characterizations.
Funding Information:
This work was supported by National Natural Science Foundation of China (Grant No. 51827901 , No. 52006150 ), Natural Science Foundation of SZU (Grant No. 2019087 ), Sichuan Science and Technology Department (Grant No. 2020YFH0012 ) and Department of Science and Technology of Guangdong Province (No. 2019ZT08G315 ). We also thank the Institute of New Energy and Low-Carbon Technology of Sichuan Univerisity, Clean Energy Research Institute of Shenzhen, and Electron Micro scope Center of Shenzhen Univeristy for help in characterizations.
Publisher Copyright:
© 2020 Elsevier B.V.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/4/15
Y1 - 2021/4/15
N2 - The hybrid direct coal fuel cell (HDCFC) is a promising technology for the generation of power using coal, which is abundant and cheap. However, restricted contact between the solid carbon in the coal and the anode of the cell not only limits the electrochemical oxidation sites, but also adversely affects the transport of electrons and ions. Herein, we demonstrate a new strategy of using Cu-modified Ni foams as the three-dimensional outer anode for a high-performance HDCFC with 3D structure, that is rich in electrochemical reaction sites and beneficial for electron and ion transport when filled with molten carbonates and anthracite coal. Moreover, the CuNi alloy layer formed on the surface of Ni foam is of excellent coking-resistance and capable of preventing ash-clogging, therefore effectively promoting the durability of an electrolyte-supported HDCFC. An excellent maximum power density of 378 mW cm−2 at 750 °C is achieved using the prepared 3D anode with anthracite coal as fuel. Besides, the cell exhibited stable operation for more than 13 h at 100 mA cm−2, promising a new electrode design strategy for developing high-performance HDCFC anodes.
AB - The hybrid direct coal fuel cell (HDCFC) is a promising technology for the generation of power using coal, which is abundant and cheap. However, restricted contact between the solid carbon in the coal and the anode of the cell not only limits the electrochemical oxidation sites, but also adversely affects the transport of electrons and ions. Herein, we demonstrate a new strategy of using Cu-modified Ni foams as the three-dimensional outer anode for a high-performance HDCFC with 3D structure, that is rich in electrochemical reaction sites and beneficial for electron and ion transport when filled with molten carbonates and anthracite coal. Moreover, the CuNi alloy layer formed on the surface of Ni foam is of excellent coking-resistance and capable of preventing ash-clogging, therefore effectively promoting the durability of an electrolyte-supported HDCFC. An excellent maximum power density of 378 mW cm−2 at 750 °C is achieved using the prepared 3D anode with anthracite coal as fuel. Besides, the cell exhibited stable operation for more than 13 h at 100 mA cm−2, promising a new electrode design strategy for developing high-performance HDCFC anodes.
KW - 3D anode
KW - Cu-modified Ni foam
KW - Direct carbon fuel cell
KW - Fuel utilization
UR - http://www.scopus.com/inward/record.url?scp=85099234330&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2020.128239
DO - 10.1016/j.cej.2020.128239
M3 - Journal article
AN - SCOPUS:85099234330
SN - 1385-8947
VL - 410
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 128239
ER -