The unique properties imparted by planar, rigid aromatic rings in synthetic polymers make
these macromolecules useful in a range of applications, including disposable packaging …

Conventional proton exchange membrane (PEM) durability testing takes thousands of
hours, which is consuming and costly. The development of a suitable accelerated aging …

Solid-state nuclear magnetic resonance (ssNMR) has been playing an indispensable role in
revealing the interplay of structure and molecular dynamics in polymers at different states. In …

Dynamic nuclear polarization (DNP) has gained large interest due to its ability to increase
signal intensities in nuclear magnetic resonance (NMR) experiments by several orders of …

It is essential and vital to develop high-performance proton-conducting solid electrolyte
materials for proton exchange membrane fuel cells (PEMFCs), but it remains challenging to …

Although the water content in polymer electrolyte membranes (PEMs) is a very important
parameter for controlling their performance, measuring it is difficult because strong acidic …

The majority of low-field Overhauser dynamic nuclear polarization (ODNP) experiments
reported so far have been 1D NMR experiments to study molecular dynamics and in …

Understanding the electrochemical reaction mechanisms of energy conversion and storage
systems is essential for improving their performance. Nuclear magnetic resonance (NMR) …

Perfluorosulfonic acid (PFSA) polymer electrolyte membranes (PEMs) used in fuel cells
undergo chemical degradation when exposed to radicals formed during electrochemical …

In this paper, we report the synthesis of perfluoro (2, 3, 5, 6-tetrafluoroanilinium sulfate)(PF
(TFA-H)) from Nafion™ via a free-radical desulfur coupling reaction, which utilizes TFA-H as …