This paper reviews current state-of-the-art methods of measuring pH levels that are based
on polymer materials. These include polymer-coated fibre optic sensors, devices with …

Electrochemical capacitors (EC) also called 'supercapacitors' or 'ultracapacitors' store the
energy in the electric field of the electrochemical double-layer. Use of high surface-area …

This second edition of a well-received volume has been thoroughly updated and expanded
to cover the most recent developments. Coverage now includes additional polymers such as …

Different types of commercially available electrochemical double layer capacitors (EDLCs)
were analysed in accelerated ageing tests by impedance spectroscopy. From these …

The carbon nanotubes (CNT) show promising electrochemical characteristics particularly for
electrochemical energy storage. The electrochemical double-layer (ECDL) capacitor is a …

Electrochemical double layer capacitors of the BCAP0350 type (Maxwell Technologies)
were tested under constant load conditions at different voltages and temperatures. The …

At low potentials, the impedance of polypyrrole+ polystyrenesulphonate changes from the
simple transmission line response observed at high potentials to a more complex response …

Electrochemical impedance spectroscopy is used to investigate the charge-transfer and
mass-transfer processes of VO2+/VO2+ (V4+/V5+) redox species across the carbon …

Ultracapacitors (UCs) are being increasingly deployed as a short-term energy storage
device in various energy systems including uninterruptable power supplies, electrified …

A simplified model of the transport of the charge carriers and neutral species in conducting
polymers is presented. It takes into account the diffusion of anions, cations and solvent in the …