Development of methodologies for fabrications of nanostructured materials that provide control over their microstructural features and compositions represents a fundamental step in the advancement of technologies for ...Development of methodologies for fabrications of nanostructured materials that provide control over their microstructural features and compositions represents a fundamental step in the advancement of technologies for productions of materials with well-defined functional properties.Pulse electrolysis,a top-down electrochemical approach,has been demonstrated to be a viable method for producing nanostructured materials with a particular efficacy in the synthesis of tin oxides.This method allows for significant control over the composition and shape of the resulting tin oxides particles by modifying the anionic composition of the aqueous electrolyte,obviating the need for additional capping agents in the synthesis process and eliminating the requirement for high-temperature post-treatments.The composition and microstructural characteristics of these oxides are found to be contingent upon the differing stabilities of tin fluoride and chloride complexes,as well as the distinct mechanisms of interaction between chloride and fluoride anions with an oxidized tin surface,which is influenced by the varying kosmotropic/chaotropic nature of these anions.The composition and microstructural characteristics of the obtained dispersed tin oxides would thus determine their potential applications as an anode material for lithium-ion batteries,as a photocatalyst,or as an oxyphilic component of a hybrid support for a platinum-containing electrocatalyst.展开更多
Exploitation of sustainable energy sources requires the use of unique conversion and storage systems,such as solar panels,batteries,fuel cells,and electronic equipment.Thermal load management of these energy conversio...Exploitation of sustainable energy sources requires the use of unique conversion and storage systems,such as solar panels,batteries,fuel cells,and electronic equipment.Thermal load management of these energy conversion and storage systems is one of their challenges and concerns.In this article,the thermal management of these systems using thermoelectric modules is reviewed.The results show that by choosing the right option to remove heat from the hot side of the thermoelectric modules,it will be a suitable local cooling,and the thermoelectric modules increase the power and lifespan of the system by reducing the spot temperature.Thermoelectric modules were effective in reducing panel temperature.They increase the time to reach a temperature above 50℃ in batteries by 3 to 4 times.Also,in their integration with fuel cells,they increase the power density of the fuel cell.展开更多
基金supported by the Ministry of Science and Higher Education of the Russian Federation under Project FENN-2024-0002.
文摘Development of methodologies for fabrications of nanostructured materials that provide control over their microstructural features and compositions represents a fundamental step in the advancement of technologies for productions of materials with well-defined functional properties.Pulse electrolysis,a top-down electrochemical approach,has been demonstrated to be a viable method for producing nanostructured materials with a particular efficacy in the synthesis of tin oxides.This method allows for significant control over the composition and shape of the resulting tin oxides particles by modifying the anionic composition of the aqueous electrolyte,obviating the need for additional capping agents in the synthesis process and eliminating the requirement for high-temperature post-treatments.The composition and microstructural characteristics of these oxides are found to be contingent upon the differing stabilities of tin fluoride and chloride complexes,as well as the distinct mechanisms of interaction between chloride and fluoride anions with an oxidized tin surface,which is influenced by the varying kosmotropic/chaotropic nature of these anions.The composition and microstructural characteristics of the obtained dispersed tin oxides would thus determine their potential applications as an anode material for lithium-ion batteries,as a photocatalyst,or as an oxyphilic component of a hybrid support for a platinum-containing electrocatalyst.
文摘Exploitation of sustainable energy sources requires the use of unique conversion and storage systems,such as solar panels,batteries,fuel cells,and electronic equipment.Thermal load management of these energy conversion and storage systems is one of their challenges and concerns.In this article,the thermal management of these systems using thermoelectric modules is reviewed.The results show that by choosing the right option to remove heat from the hot side of the thermoelectric modules,it will be a suitable local cooling,and the thermoelectric modules increase the power and lifespan of the system by reducing the spot temperature.Thermoelectric modules were effective in reducing panel temperature.They increase the time to reach a temperature above 50℃ in batteries by 3 to 4 times.Also,in their integration with fuel cells,they increase the power density of the fuel cell.
