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Electrochemical Energy
Published in Prasanth Raghavan, Fatima M. J. Jabeen, Polymer Electrolytes for Energy Storage Devices, 2021
P. P. Abhijith, N. S. Jishnu, Neethu T. M. Balakrishnan, Akhila Das, Jou-Hyeon Ahn, Jabeen Fatima M. J., Prasanth Raghavan
Silver oxide batteries exist in two forms: one has a cathode of monovalent silver oxide (Ag2O), whereas the other form uses a divalent silver oxide (AgO) cathode [1]. The second form has a better theoretical potential because there is further chemical reduction from AgO to Ag2O. The surface may be handled to reduce AgO conversion to Ag2O. In order to gain voltage stability, a “dual oxide” machine can be adopted. Higher raw material costs suggest that silver oxide cells are more expensive than their mercury equivalents.
In-situ generation and analysis of cellulose/silver nanoparticle composite filter paper with the assist of ultrasonic atomization
Published in Domenico Lombardo, Ke Wang, Advances in Materials Science and Engineering, 2021
C.F. Shi, Z. Jin, H. Ma, M.W. Li, J.R. Ji, X.W. Zhang
The reaction mechanism of cellulose to reduce silver ions under alkaline environment to obtain Ag NPs is shown in Figure 2. First, silver nitrate solution reacts with alkali solution to produce silver oxide. Due to the static electricity, silver oxide will be adsorbed by the hydroxyl groups on the cellulose polymer chains, and then under alkaline conditions, the silver oxide will react with the hydroxyl groups on the cellulose to form metallic silver and aldehyde groups, and the aldehyde groups will further reduce the silver oxide to generate metallic silver under alkaline conditions, and oxidized to carboxyl group eventually.
REVIEW: Synthesis, Medical And Photocatalyst Applications Of Nano-Ag2O
Published in Journal of Coordination Chemistry, 2020
Susan Torabi, Mohammad Javad Khoshnood Mansoorkhani, Ali Majedi, Somayeh Motevalli
Silver(I) oxide (Ag2O) is a dark-brown powder, the most thermodynamically stable and common oxide powder of silver [1]. Ag2O has a p-type semiconductor nature with a reported band gap of 1.46 eV [2, 3]. Silver oxide nanoparticles show good optical [4] and fluorescence [5] properties; because of the low-bandgap energy in Ag2O, this material has been examined in applications such as light-absorbing in photovoltaic cells [6], visible light photocatalyst [7] and have the potential to participate in data storage devices [8]. Silver oxide nanostructures also have potential in plasmon photonic devices [9]. Silver oxide acts as a sensor for different chemical molecules, such as methanol [10] and 2-nitrotoluene [11], and has also been used for catalytic oxidation reactions such as ethylene [12] and toluene [13]. They can also be used in zinc/silver oxide batteries as active cathode materials [14].
Using photocatalyzed-peroxonization to disinfect and denature genetic material of bacterial plasmids present in hospital wastewater
Published in Journal of Environmental Science and Health, Part A, 2023
Aline Dal Conti-Lampert, André L. F. Souza, Renan C. Testolin, Gisele Canan-Rochenbach, Marco A. B. Barreiros, Cleder A. Somensi, Gizelle I. Almerindo, Rafael Ariente-Neto, Sergio Y. G. González, Claudemir M. Radetski, Sylvie Cotelle
In the oxidation reactions, silver oxide and silver carbonate (Ag2O and Ag2CO3, Sigma-Aldrich) and titanium dioxide (TiO2, Degussa) were used as nanocatalysts. Hydrogen peroxide (H2O2), sulfuric acid (H2SO4), sodium hydroxide (NaOH), and other reagents were purchased from Dinâmica Química Contemporânea (SP, Brazil).