Decomposition Kinetics of AgO Cathode Material by Thermogravimetry

Abstract

The decomposition kinetics of the thermodynamically unstable normalAgO component of silver oxide cathodes used in primary silver oxide/zinc batteries was determined by a rapid, accelerated‐aging thermogravimetry (TG) technique. The activation energy false(Enormalafalse) for the decomposition of pure, chemically prepared normalAgO is in excellent agreement with other reported values obtained by conventional, lengthy experimental techniques. Electrochemically prepared silver oxide cathode material used in high rate batteries is generally much less stable than chemically prepared material used for low rate applications. The calculated decomposition rates of normalAgO in various silver oxide samples can be used to predict the storage life‐time of primary, reserve silver oxide/zinc batteries.

Optical Studies of Ag<sub>2</sub>O Thin Film Prepared by Electron Beam Evaporation Method

“…Silver oxides crystallize in various types of crystal structures, leading to a variety of interesting physico chemical properties such as catalytic, electrochemical, electronic and optical properties. Therefore, silver oxide nanocrystals and thin films have been intensively pursued for promising applications as a catalyst for ethylene and methanol oxidation [3,4], as a sensor for the detection of carbon monoxide and ammonia [5][6][7], as photovoltaic materials [8][9][10], as important components in optical memories [11] and plasmon photonic devices [12], or as active cathode materials in silver oxide/zinc alkaline batteries [13,14]. The properties of silver oxide nanostructures and thin films are found to be vitally sensitive to the growth method and the experimental conditions applied.…”

A novel approach for the biosynthesis of silver oxide nanoparticles using aqueous leaf extract ofCallistemon lanceolatus(Myrtaceae) and their therapeutic potential

“…[32] They can also be used as active cathode materials for zinc/silver oxide batteries. [33,34] Until now, silver oxide nanoparticles have been prepared using reactive sputtering [31,35] and electrochemical/ thermochemical [36À38] means. These have resulted in development of techniques for relatively inexpensive silver oxide nanostructures, but require specialised equipment and involve a variety of chemicals that could have an impact on the environment.…”

Room temperature synthesis and photocatalytic property of AgO/Ag2Mo2O7 heterojunction nanowires

“…It has been demonstrated that AgO (best described as a combination of Ag(I) and Ag(III)) is thermal stability below the temperature of 200 8C [21,23]. The band gap is 2.94 eV for the Ag 2 Mo 2 O 7 nanowires [18] and 1.1 eV for AgO [19].…”