Biopolymer-based electrolyte membranes from chitosan incorporated with montmorillonite-crosslinked GPTMS for 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.

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.


Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1175 ◽  
Author(s):  
Liying Ma ◽  
Guoxiao Xu ◽  
Shuai Li ◽  
Jiao Ma ◽  
Jing Li ◽  
...  

A hyper-branched sulfonated polyimide (s-PI) was synthesized successfully and composited with polyvinylidene fluoride (PVDF) to achieve ultra-high methanol-permeation resistive for direct methanol fuel cell application. The optimized s-PI-PVDF composite membrane exhibited methanol resistivity low to 1.80 × 10−8 cm2/s, two orders of magnitude lower than the value of the commercial Nafion 117 membrane (60 × 10−7 cm2/s). At the same time, the tensile strength of the composite membrane is 22 MPa, which is comparable to the value of the Nafion 117 membrane. Therefore, the composite membrane is promising for application in direct methanol fuel cell.


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.


2008 ◽  
Vol 313 (1-2) ◽  
pp. 336-343 ◽  
Author(s):  
Zhimou Wu ◽  
Gongquan Sun ◽  
Wei Jin ◽  
Hongying Hou ◽  
Suli Wang ◽  
...  

Author(s):  
Nastaran Shakeri ◽  
Zahra Rahmani ◽  
Abolfazl Ranjbar Noei ◽  
Mohammadreza Zamani

Direct methanol fuel cells are one of the most promisingly critical fuel cell technologies for portable applications. Due to the strong dependency between actual operating conditions and electrical power, acquiring an explicit model becomes difficult. In this article, the behavioral model of direct methanol fuel cell is proposed with satisfactory accuracy, using only input/output measurement data. First, using the generated data which are tested on the direct methanol fuel cell, the frequency response of the direct methanol fuel cell is estimated as a primary model in lower accuracy. Then, the norm optimal iterative learning control is used to improve the estimated model of the direct methanol fuel cell with a predictive trial information algorithm. Iterative learning control can be used for controlling systems with imprecise models as it is capable of correcting the input control signal in each trial. The proposed algorithm uses not only the past trial information but also the future trials which are predicted. It is found that better performance, as well as much more convergence speed, can be achieved with the predicted future trials. In addition, applying the norm optimal iterative learning control on the proposed procedure, resulted from the solution of a quadratic optimization problem, leads to the optimal selection of the control inputs. Simulation results demonstrate the effectiveness of the proposed approach by practical data.


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