TY - JOUR
T1 - In Situ Exsolvation of Cu Nanoparticles to Enhance Anode Catalysis in Direct Carbon Solid Oxide Fuel Cells
AU - Guo, Xiang
AU - Qiao, Jinshuo
AU - Zhai, Hang
AU - Zou, Cheng
AU - Chen, Sitong
AU - Ren, Rong zheng
AU - Sun, Wang
AU - Wang, Zhenhua
AU - Sun, Kening
N1 - Publisher Copyright:
© 2025 American Chemical Society.
PY - 2025/5/7
Y1 - 2025/5/7
N2 - Direct carbon solid oxide fuel cells (DC-SOFCs) are energy-conversion devices that can be utilized to directly convert the chemical energy in carbon into electrical energy. However, the development of DC-SOFCs is hindered by the inefficient mass transfer process on the anode surface. Herein, B-site Cu-substituted (PrBa)0.95Fe1.8-xTi0.2CuxO6−δ (PBFTCx, x = 0-0.3) materials are synthesized via the sol-gel combustion method and evaluated as anode materials for DC-SOFCs. These Cu@PBFTCx (x = 0-0.3) anode materials show significantly improved CO adsorption capacities and oxygen ion conductivities, leading to improved catalytic performance in DC-SOFCs. Among the Cu-doped samples, Cu@PBFTC0.2 shows the most enhanced CO adsorption capacity and the highest ion conductivity in air. A single cell assembled with a Cu@PBFTC0.2 anode exhibits excellent performance when using nanoactivated carbon as a fuel, achieving a peak power density of 518.98 mW cm-2 at 800 °C. This work demonstrates the excellent potential for utilizing Cu@PBFTCx materials as DC-SOFC anodes.
AB - Direct carbon solid oxide fuel cells (DC-SOFCs) are energy-conversion devices that can be utilized to directly convert the chemical energy in carbon into electrical energy. However, the development of DC-SOFCs is hindered by the inefficient mass transfer process on the anode surface. Herein, B-site Cu-substituted (PrBa)0.95Fe1.8-xTi0.2CuxO6−δ (PBFTCx, x = 0-0.3) materials are synthesized via the sol-gel combustion method and evaluated as anode materials for DC-SOFCs. These Cu@PBFTCx (x = 0-0.3) anode materials show significantly improved CO adsorption capacities and oxygen ion conductivities, leading to improved catalytic performance in DC-SOFCs. Among the Cu-doped samples, Cu@PBFTC0.2 shows the most enhanced CO adsorption capacity and the highest ion conductivity in air. A single cell assembled with a Cu@PBFTC0.2 anode exhibits excellent performance when using nanoactivated carbon as a fuel, achieving a peak power density of 518.98 mW cm-2 at 800 °C. This work demonstrates the excellent potential for utilizing Cu@PBFTCx materials as DC-SOFC anodes.
UR - http://www.scopus.com/inward/record.url?scp=105003585769&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.5c00131
DO - 10.1021/acs.iecr.5c00131
M3 - Article
AN - SCOPUS:105003585769
SN - 0888-5885
VL - 64
SP - 9089
EP - 9096
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 18
ER -