Investigation on carbon nanotube oxide for anhydrous proton exchange membranes application

2020 ◽  
Vol 137 (26) ◽  
pp. 48833
Author(s):  
Bin Pan ◽  
Tingting Jia ◽  
Xiangqing Duan ◽  
Zhixuan Zhong ◽  
Guosheng Bai ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Proton Exchange Membranes ◽  
Proton Exchange

scholarly journals Direct spun aligned carbon nanotube web-reinforced proton exchange membranes for fuel cells

RSC Advances ◽  
2014 ◽  
Vol 4 (62) ◽  
pp. 32787-32790 ◽  
Author(s):  
Jonghyun Choi ◽  
Chanmin Lee ◽  
Stephen C. Hawkins ◽  
Chi P. Huynh ◽  
Jeongho Park ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Composite Membrane ◽  
Proton Exchange Membranes ◽  
Proton Exchange

A composite membrane prepared by electrospinning SPEEK and direct spinning of CNTs is more robust than SPEEK alone and outperforms SPEEK and Nafion 212 membranes.

Preparation and Performance of Crosslinked Proton Exchange Membranes Containing Carboxyl Group

2012 ◽  
Vol 29 (12) ◽  
pp. 1428
Author(s):  
Hong WEI ◽  
Hong JIANG ◽  
Lei NI
Keyword(s):  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Carboxyl Group ◽  
And Performance

Polyphosphazene-Based Proton-Exchange Membranes for Direct Liquid Methanol Fuel Cells

2005 ◽  
Author(s):  
Peter N. Pintauro ◽  
Ryszard Wycisk ◽  
H. Yoo ◽  
J. Lee
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Methanol Fuel Cells

MnO2/SiO2–SO3H nanocomposite as hydrogen peroxide scavenger for durability improvement in proton exchange membranes

2010 ◽  
Vol 346 (1) ◽  
pp. 143-151 ◽  
Author(s):  
D. Zhao ◽  
B.L. Yi ◽  
H.M. Zhang ◽  
H.M. Yu
Keyword(s):  
Hydrogen Peroxide ◽  
Proton Exchange Membranes ◽  
Proton Exchange

Methods for modifying proton exchange membranes using the sol–gel process

Polymer ◽  
2005 ◽  
Vol 46 (12) ◽  
pp. 4504-4509 ◽  
Author(s):  
L.C. Klein ◽  
Y. Daiko ◽  
M. Aparicio ◽  
F. Damay
Keyword(s):  
Sol Gel ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Sol Gel Process

Crosslinked Proton Exchange Membranes with a Wider Working Temperature Based on Phosphonic Acid Functionalized Siloxane and PPO

2021 ◽  
Vol 29 (3) ◽  
pp. 199-210
Author(s):  
Zhihui Wu ◽  
Chunhui Shen ◽  
Shanjun Gao ◽  
Xi Zhu ◽  
Mingliang Zhang ◽  
...  
Keyword(s):  
Phosphonic Acid ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Working Temperature

scholarly journals Synthesis and Characterization of Partially Renewable Oleic Acid-Based Ionomers for Proton Exchange Membranes

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 130
Author(s):  
Carlos Corona-García ◽  
Alejandro Onchi ◽  
Arlette A. Santiago ◽  
Araceli Martínez ◽  
Daniella Esperanza Pacheco-Catalán ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Proton Conductivity ◽  
Electrochemical Impedance ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Molar Ratio ◽  
Aromatic Diamines ◽  
Chemical Structures ◽  
Long Chain

The future availability of synthetic polymers is compromised due to the continuous depletion of fossil reserves; thus, the quest for sustainable and eco-friendly specialty polymers is of the utmost importance to ensure our lifestyle. In this regard, this study reports on the use of oleic acid as a renewable source to develop new ionomers intended for proton exchange membranes. Firstly, the cross-metathesis of oleic acid was conducted to yield a renewable and unsaturated long-chain aliphatic dicarboxylic acid, which was further subjected to polycondensation reactions with two aromatic diamines, 4,4′-(hexafluoroisopropylidene)bis(p-phenyleneoxy)dianiline and 4,4′-diamino-2,2′-stilbenedisulfonic acid, as comonomers for the synthesis of a series of partially renewable aromatic-aliphatic polyamides with an increasing degree of sulfonation (DS). The polymer chemical structures were confirmed by Fourier transform infrared (FTIR) and nuclear magnetic resonance (1H, 13C, and 19F NMR) spectroscopy, which revealed that the DS was effectively tailored by adjusting the feed molar ratio of the diamines. Next, we performed a study involving the ion exchange capacity, the water uptake, and the proton conductivity in membranes prepared from these partially renewable long-chain polyamides, along with a thorough characterization of the thermomechanical and physical properties. The highest value of the proton conductivity determined by electrochemical impedance spectroscopy (EIS) was found to be 1.55 mS cm−1 at 30 °C after activation of the polymer membrane.

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