Catalytic performance of a pyrolyzed graphene supported Fe–N–C composite and its application for acid direct methanol fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90797-90805 ◽  
Author(s):  
Jingjing Xi ◽  
Fang Wang ◽  
Riguo Mei ◽  
Zhijie Gong ◽  
Xianping Fan ◽  
...  

A graphene supported Fe–N–C composite catalyst, synthesized by pyrolysis of graphene oxide, graphitic carbon nitride, ferric chloride and carbon black, was evaluated for the acid oxygen reduction reaction and the direct methanol fuel cell.

2020 ◽  
Vol 44 (18) ◽  
pp. 7338-7349 ◽  
Author(s):  
V. Parthiban ◽  
A. K. Sahu

Sulfonated hexagonal boron nitride is explored as a potential filler to prepare Nafion hybrid membranes for direct methanol fuel cell (DMFC) applications.


Author(s):  
M. R. Golriz ◽  
J. Gu ◽  
D. James

In this work, analytical mass transfer models are developed for two different types of Direct Methanol Fuel Cells (DMFCs). One type is a conventional assembly with a proton exchange membrane (PEM) and the other utilizes a flowing electrolyte in addition to a PEM to reduce methanol crossover. These models are used to predict methanol crossover behaviour that is a major issue affecting the efficiencies of PEM-DMFCs. It is shown that using flowing electrolyte DMFCs can lead to a significant decrease in methanol crossover with a corresponding increase in electrical efficiency of the cell. Combined with the experiments carried out in a previous work, the simulation showed significant efficiency improvements when using a flowing electrolyte DMFC compared to a traditional PEM assembly.


2014 ◽  
Vol 2 (46) ◽  
pp. 19914-19919 ◽  
Author(s):  
Jianyu Cao ◽  
Hui Zhuang ◽  
Mengwei Guo ◽  
Hongning Wang ◽  
Juan Xu ◽  
...  

Mesoporous graphenes were synthesized via a template-assisted pyrolysis approach and used as a material for a porous diffusion layer in direct methanol fuel cells.


RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2314-2322 ◽  
Author(s):  
Mochammad Purwanto ◽  
Lukman Atmaja ◽  
Mohamad Azuwa Mohamed ◽  
M. T. Salleh ◽  
Juhana Jaafar ◽  
...  

A composite membrane was fabricated from biopolymer chitosan and montmorillonite (MMT) filler as an alternative membrane electrolyte for direct methanol fuel cell (DMFC) application.


2017 ◽  
Vol 5 (4) ◽  
pp. 1481-1487 ◽  
Author(s):  
Genlei Zhang ◽  
Zhenzhen Yang ◽  
Wen Zhang ◽  
Yuxin Wang

A novel Pt/Ce0.7Mo0.3O2−δ–C electrocatalyst has been developed for methanol oxidation. A direct methanol fuel cell integrating this catalyst as the anode catalyst showed superior power density compared to that with a state-of-the-art commercial Pt/C-JM catalyst.


Nanoscale ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 3418-3423 ◽  
Author(s):  
Xinlong Xu ◽  
Zhangxun Xia ◽  
Xiaoming Zhang ◽  
Huanqiao Li ◽  
Suli Wang ◽  
...  

The size effect of Fe–N–C catalysts on the oxygen reduction reaction was investigated by both half-cell electrochemical measurements and direct methanol fuel cell tests and a correlation among size, porous structure and performance was proposed.


2020 ◽  
Vol 8 (7) ◽  
pp. 2000124
Author(s):  
Oscar Gil-Castell ◽  
Óscar Santiago ◽  
Borja Pascual-Jose ◽  
Emilio Navarro ◽  
Teresa J. Leo ◽  
...  

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