Detection of ammonia can be done using gas sensors. Examples of different application areas of ammonia gas sensing are; environmental monitoring, medical diagnostics, chemical laboratories and detection of ammonia in portable water and wastewater (Timmer et al., 2005). High concentrations of ammonia are easy to detect while for very low concentrations we require different gas sensors operating at different sensing principles. Ammonia gas sensors operate at different temperatures each having a specific
Thailand (FAO, 1994). Being very rich in starch (90% of the dry matter), Cassava is mainly used in traditional human foods, but is also used industrially for the production of starch and starch derivatives, e.g. dextrins and glucose (Zhu, 2015). Polypyrrole can be prepared either by chemical or electrochemical polymerization. In the electrochemical polymerization, the pyrrole (Py) is oxidized by
of supercapacitors. Conducting polymer based super capacitors using proton and lithium ion conducting solid electrolytes have received considerable attention recently and several supercapacitor modules have been fabricated using polythiophine, polypyrrole, polyaniline and their related composites to achieve energy storage of about 200F/g. Generally the voltage of a super capacitor is dictated by the available potential window prior to the commencement of any irreversible anodic and cathodic faradaic
DEFINITION : “ Poly means many and mer means parts, so polymer means many parts. Polymers are made from many small molecules held together through covalent bonding ” The small molecules which form polymers are called monomers. In other words monomers are the building block of polymers. Hundreds and thousands of monomers combine together to form a large molecule of polymer. A polymer can be a three dimensional network ( repeating units linked together left and right, front and back, up