Fuel Cells
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2021 ◽  
Vol 250 ◽  
pp. 114894
Author(s):  
Yixing Li ◽  
Yin Pang ◽  
Hengyong Tu ◽  
Federica Torrigino ◽  
Serge M.A. Biollaz ◽  
...  

2021 ◽  
Author(s):  
Ance Pļavniece

Studies have shown that high-efficiency micro- and mesoporous activated carbon with high added value can be obtained on the basis of lignocellulose biomass in a three-stage thermochemical process. A methodology has been developed for the synthesis of nitrogen-doped activated carbon by synthesis with dicyandiamide in dimethylformamide suspension as a raw material using wood, its processing residues and wood char.


2021 ◽  
pp. 1-46
Author(s):  
David Sebastián ◽  
Cinthia Alegre ◽  
Sara Pérez‐Rodríguez ◽  
María J. Lázaro

2021 ◽  
pp. 1-16
Author(s):  
M. P. Gurrola ◽  
R. A. Escalona‐Villalpando ◽  
N. Arjona ◽  
J. Ledesma‐García ◽  
L. G. Arriaga
Keyword(s):  

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 817
Author(s):  
Shian Li ◽  
Chengdong Peng ◽  
Qiuwan Shen ◽  
Chongyang Wang ◽  
Yuanzhe Cheng ◽  
...  

In this work, a three-dimensional mathematical model including the fluid flow, heat transfer, mass transfer, and charge transfer incorporating electrochemical reactions was developed and applied to investigate the transport phenomena and performance in high-temperature proton exchange membrane fuel cells (HT-PEMFCs) with a membrane phosphoric acid doping level of 5, 7, 9, 11. The cell performance is evaluated and compared in terms of the polarization curve. The distributions of temperature, oxygen mass fraction, water mass fraction, proton conductivity, and local current density of four cases are given and compared in detail. Results show that the overall performance and local transport characteristics are significantly affected by the membrane phosphoric acid doping level.


Author(s):  
Wenjuan Zhao ◽  
YiZhao Gao ◽  
Yongli Zhao ◽  
Xiaoya Deng ◽  
Jun Shao ◽  
...  

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