Electrochemical Characterization of Gelatine Derived Ceramics

Abstract

New materials obtained by pyrolysis of gelatine (G) and poly(1,2-dimethylsilazane) (PSN) (weight ratio: G/PSN 70/30) at temperatures 700 and 900 °C were characterized by SEM and Raman spectroscopy. The presence of ceramics influences on the cluster size of the materials. Electrochemical tests were performed by cyclic voltammetry and galvanostatic cyclic polarization. The capacity of G/PSN was 464 and 527 mAh/g for materials pyrolysed at 700 and 900 °C. The capacity fading was 1 % after 17 th cycle for G/PSN at 900 °C. This value is higher of 185 mAh/g in comparison to capacity of gelatine pyrolysed at the same conditions.

Tin oxide nanoparticles from laser ablation encapsulated in a carbonaceous matrix – a negative electrode in lithium-ion battery applications

“…In our previous study we showed that pyrolysed gelatine exhibits a capacity of only 343 mA h g À1 even for a current density equal to 18.6 mA g À1 (C/20current rate). 39 Thus, the nanoparticles enhance the specic charge/discharge capacity while the pyrolysed organic source of carbon stabilizes the cyclability of the electrode material. Our results are in agreement with the results obtained by other authors who proved that modication of tin/ tin oxide by carbonaceous materials has a positive impact on the electrochemical stability of such a complex system.…”

Effect of Substituting White Cement with Ceramic Waste Powders (CWP) on the Performance of a Mortar Based on Crushed Sand

“…In recent years, many researchers have studied various uses of ceramic waste to manage its harmful impact on the environment [6][7][8][9][10][11]. In civil engineering, their utilization as a substitute for aggregates or as a replacement for cement with ceramic powders has been shown to significantly reduce CO2 emissions [12,13].…”