Results 21 to 30 of about 14,886 (263)

Composite Nafion Membranes with CaTiO_3−δ Additive for Possible Applications in Electrochemical Devices

Membranes, 2019
A composite membrane based on a Nafion polymer matrix incorporating a non-stoichiometric calcium titanium oxide (CaTiO3−δ) additive was synthesized and characterized by means of thermal analysis, dynamic mechanical analysis, and broadband ...
Lucia Mazzapioda, Maria Assunta Navarra, Francesco Trequattrini, Annalisa Paolone, Khalid Elamin, Anna Martinelli, Oriele Palumbo   +6 more
doaj   +1 more source

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

Sensors, 2017
The detection of hydrogen sulfide (H2S) and ethanediamine, toxic gases that are emitted from industrial processes, is important for health and safety.
Gulimire Tuerdi, Nuerguli Kari, Yin Yan, Patima Nizamidin, Abliz Yimit   +4 more
doaj   +1 more source

Application of commercial poly(3,4-ethylenedioxy-thiophene):poly(styrene sulfonate) for electrochemical sensing of dopamine [PDF]

Journal of the Serbian Chemical Society, 2013
In this paper, a simple and stable composite electrode based on intrinsically conducting polymer poly(3,4-ethylenedioxythiophene):poly(sty-renesulfonate) (PEDOT:PSS) and ion-exchange polymer Nafion, was successfully fabricated by drop-coating the ...
Yao Yuanyuan, Wen Yangping, Xu Jingkun, Zhang Long, Duan Xuemin   +4 more
doaj   +1 more source

Methanol crossover and selectivity of nafion/heteropolyacid/montmorillonite nanocomposite proton exchange membranes for DMFC applications [PDF]

Iranian Journal of Chemical Engineering, 2017
In this work, we prepared the nafion/montmorillonite/heteropolyacid nanocomposite membranes for direct methanol fuel cells (DMFCs). The analyses such as X-ray diffraction (XRD), Fourier transform infrared (FTIR), and scanning electron microscopy (SEM ...
M. Azimi, S.J. Peighambardoust
doaj  

Performance of Platinum Black and Supported Platinum Catalysts in a Direct Methanol Fuel Cell

International Journal of Electrochemical Science, 2009
Catalyst utilization studies are very important in PEM and Direct Methanol Fuel cell systems. This article studies the effect of nafion content on the catalyst utilization of Platinum Black and Platinum/Carbon electrodes when used as cathodes in a Direct
Balaji Krishnamurthy, S. Deepalochani
doaj   +1 more source

The Effect of Direct Electron Beam Patterning on the Water Uptake and Ionic Conductivity of Nafion Thin Films

Advanced Electronic Materials, 2023
The effect of electron‐beam patterning on the water uptake and ionic conductivity of Nafion films using a combination of X‐ray photoelectron spectroscopy, quartz crystal microbalance studies, neutron reflectometry, and impedance spectroscopy is reported.
Ky V. Nguyen, Jan G. Gluschke, A. Bernardus Mostert, Andrew Nelson, Gregory Burwell, Roman W. Lyttleton, Hamish Cavaye, Rebecca J.L. Welbourn, Jakob Seidl, Maxime Lagier, Marta Sanchez Miranda, James D. McGettrick, Trystan Watson, Paul Meredith, Adam P. Micolich   +14 more
doaj   +1 more source

Nafion doped polyaniline/graphene oxide composites as electrode materials for high performance flexible supercapacitors based on Nafion membrane

Materials & Design, 2023
Nafion membrane possesses good ionic conductivity and excellent mechanical stability, which can be used as electrolyte and separator of flexible supercapacitor.
Xudong Fu, Jiexin Wen, Chunguang Xia, Qingting Liu, Rong Zhang, Shengfei Hu   +5 more
doaj   +1 more source

Nafion-Protected Sputtered-Bismuth Screen-Printed Electrode for On-site Voltammetric Measurements of Cd(II) and Pb(II) in Natural Water Samples

Sensors, 2019
In this work, we explore the protection with Nafion of commercial sputtered-bismuth screen-printed electrodes (BiSPSPEs), to improve its ability for on-site determination of Cd(II) and Pb(II) ions in ambient water samples.
Samuel Frutos-Puerto, Conrado Miró, Eduardo Pinilla-Gil   +2 more
doaj   +1 more source

Experimental optimization of the Nafion® ionomer content in the catalyst layer for polymer electrolyte membrane water electrolysis at high temperatures

Frontiers in Energy Research, 2023
The polymer electrolyte membrane water electrolysis (PEMWE) performance is closely related to the Nafion® ionomer content in catalyst layers (CLs). This study experimentally investigates the impact of anode and cathode Nafion® ionomer contents on the ...
Hua Li, Senrui Huang, Chao Guan, Huixuan Wang, Hironori Nakajima, Kohei Ito, Yulin Wang, Yulin Wang   +7 more
doaj   +1 more source

Characterisation of hydration water in Nafion membrane

RSC Advances, 2021
Hydration of fully dried Nafion membrane results in the formation of oxonium ions of increasing complexity, up to H9O4+. Beyond this, water behaves as the bulk liquid.
Stewart F. Parker, Shrey Shah
openaire   +3 more sources