Compressive Creep of Perfluorosulfonic Acid Membranes in Controlled Environments

2021 ◽  
Vol MA2021-02 (38) ◽  
pp. 1131-1131
Author(s):  
Claire Arthurs ◽  
Ahmet Kusoglu ◽  
Christopher Capuano
Keyword(s):  
Perfluorosulfonic Acid ◽  
Compressive Creep ◽  
Perfluorosulfonic Acid Membranes ◽  
Controlled Environments

scholarly journals Correlated interfacial water transport and proton conductivity in perfluorosulfonic acid membranes

2019 ◽  
Vol 116 (18) ◽  
pp. 8715-8720 ◽  
Author(s):  
Xiao Ling ◽  
Mischa Bonn ◽  
Katrin F. Domke ◽  
Sapun H. Parekh
Keyword(s):  
Water Transport ◽  
Proton Conductivity ◽  
Proton Exchange ◽  
Interfacial Water ◽  
Total Water ◽  
Perfluorosulfonic Acid ◽  
Water Diffusivity ◽  
Perfluorosulfonic Acid Membranes ◽  
Coherent Raman

Water must be effectively transported and is also essential for maximizing proton conductivity within fuel-cell proton-exchange membranes (PEMs). Therefore, identifying relationships between PEM properties, water transport, and proton conductivity is essential for designing optimal PEMs. Here, we use coherent Raman spectroscopy to quantify real-time, in situ diffusivities of water subspecies, bulk-like and nonbulk-like (interfacial) water, in five different perfluorosulfonic acid (PFSA) PEMs. Although the PEMs were chemically diverse, water transport within them followed the same rule: Total water diffusivity could be represented by a linear combination of the bulk-like and interfacial water diffusivities. Moreover, the diffusivity of interfacial water was consistently larger than that of bulk-like water. These measurements of microscopic transport were combined with through-plane proton conductivity measurements to reveal the correlation between interfacial water transport and proton conductivity. Our results demonstrate the importance of maximizing the diffusivity and fractional contribution of interfacial water to maximize the proton conductivity in PFSA PEMs.

Potentiometric multisensory system based on perfluorosulfonic acid membranes and carbon nanotubes for sulfacetamide determination in pharmaceuticals

2020 ◽  
Vol 873 ◽  
pp. 114435
Author(s):  
Ekaterina Safronova ◽  
Anna Parshina ◽  
Tatyana Kоlganova ◽  
Anastasia Yelnikova ◽  
Olga Bobreshova ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Perfluorosulfonic Acid ◽  
Perfluorosulfonic Acid Membranes ◽  
Multisensory System

scholarly journals Cerium Ion Mobility and Diffusivity Rates in Perfluorosulfonic Acid Membranes Measured via Hydrogen Pump Operation

2017 ◽  
Vol 164 (12) ◽  
pp. F1272-F1278 ◽  
Author(s):  
Andrew M. Baker ◽  
Siddharth Komini Babu ◽  
Rangachary Mukundan ◽  
Suresh G. Advani ◽  
Ajay K. Prasad ◽  
...  
Keyword(s):  
Ion Mobility ◽  
Perfluorosulfonic Acid ◽  
Pump Operation ◽  
Perfluorosulfonic Acid Membranes ◽  
Cerium Ion ◽  
Hydrogen Pump

Comparison of the Hydration and Diffusion of Protons in Perfluorosulfonic Acid Membranes with Molecular Dynamics Simulations

2008 ◽  
Vol 112 (42) ◽  
pp. 13273-13284 ◽  
Author(s):  
Shengting Cui ◽  
Junwu Liu ◽  
Myvizhi Esai Selvan ◽  
Stephen J. Paddison ◽  
David J. Keffer ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Perfluorosulfonic Acid ◽  
Perfluorosulfonic Acid Membranes ◽  
Dynamics Simulations ◽  
And Diffusion
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