Revealing the effect of the cell voltage and external conditions on the characteristics of protonic ceramic fuel cells

2020 ◽  
Vol 8 (25) ◽  
pp. 12641-12656 ◽  
Author(s):  
L. P. Putilov ◽  
V. I. Tsidilkovski ◽  
A. K. Demin

The effects of the cell voltage and external conditions on the characteristics of protonic ceramic fuel cell are theoretically elucidated.

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2004
Author(s):  
Junjiao Li ◽  
Jun Xie ◽  
Dongchen Li ◽  
Lei Yu ◽  
Chaowei Xu ◽  
...  

Interface engineering can be used to tune the properties of heterostructure materials at an atomic level, yielding exceptional final physical properties. In this work, we synthesized a heterostructure of a p-type semiconductor (NiO) and an n-type semiconductor (CeO2) for solid oxide fuel cell electrolytes. The CeO2-NiO heterostructure exhibited high ionic conductivity of 0.2 S cm−1 at 530 °C, which was further improved to 0.29 S cm−1 by the introduction of Na+ ions. When it was applied in the fuel cell, an excellent power density of 571 mW cm−1 was obtained, indicating that the CeO2-NiO heterostructure can provide favorable electrolyte functionality. The prepared CeO2-NiO heterostructures possessed both proton and oxygen ionic conductivities, with oxygen ionic conductivity dominating the fuel cell reaction. Further investigations in terms of electrical conductivity and electrode polarization, a proton and oxygen ionic co-conducting mechanism, and a mechanism for blocking electron transport showed that the reconstruction of the energy band at the interfaces was responsible for the enhanced ionic conductivity and cell power output. This work presents a new methodology and scientific understanding of semiconductor-based heterostructures for advanced ceramic fuel cells.


2016 ◽  
Vol 28 (40) ◽  
pp. 8921-8921
Author(s):  
Bin Hua ◽  
Ning Yan ◽  
Meng Li ◽  
Yi-Fei Sun ◽  
Ya-Qian Zhang ◽  
...  

2018 ◽  
Vol 6 (1) ◽  
pp. 142-150
Author(s):  
Yrii Basaraba ◽  
Mykolay Brychevskyi ◽  
Yehor Brodnikovskyi ◽  
Oleksandr Vasylyev ◽  
Ivan Perekopskyi

The features of ceramic fuel cells developed in Ukraine are discussed and their application for production of hydrogen and oxygen in a closed loop device combining ceramic fuel cells (CFC) and ceramic electrolyser cells (CEC) is considered. High-temperature electrolysis is profitable for production of hydrogen and oxygen from hot water steam, that is outcoming gas of CFC’s reactions and released traditionally in environment, as it is demonstrated theoretically.


Author(s):  
Dingyue Hu ◽  
Junyoung Kim ◽  
Hongjun Niu ◽  
Luke M. Daniels ◽  
Troy D. Manning ◽  
...  

Protonic ceramic fuel cells (PCFCs) are attractive energy conversion devices for intermediate-temperature operation (400-600 °C), however widespread application of PCFCs relies on the development of new high-performance electrode materials. Here...


2021 ◽  
Vol 506 ◽  
pp. 230134
Author(s):  
Tomohiro Kuroha ◽  
Yoshiki Niina ◽  
Mizuki Shudo ◽  
Go Sakai ◽  
Naoki Matsunaga ◽  
...  

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