Effect of electrodeposition time on the super-capacitive performance of electrodeposited MnO2 on g-C3N4 nanosheets

Controllable Anchoring of Graphitic Carbon Nitride on MnO2 Nanoarchitectures for Oxygen Evolution Electrocatalysis

“…In this context, graphitic carbon nitride (g-CN), a polymeric metal-free semiconductor, has drawn an ever-growing attention. ,,– This remarkable interest can be traced back to its low cost, nontoxicity, flexible two-dimensional (2D) structure, chemical/thermal stability, tunable defectivity, and appropriate band gap to harvest vis radiation ( E G ≈ 2.7 eV). ,,– In spite of these advantages, g-CN suffers from low surface area, low electrical conductivity, limited active site availability, and fast recombination of photogenerated charge carriers. ,,,,,– Among the various routes adopted to improve g-CN performances, – ,,, the controlled construction of heterojunctions between g-CN and a suitable semiconducting partner can yield a more efficient harvesting of solar light and an improved separation of photoproduced electrons and holes. ,,,,– Amid the different candidates, MnO 2 , featuring environmental friendliness, earth abundance, and low cost, is an attractive choice, ,, thanks to the band structure matching with g-CN one and the narrower band gap ( E G ≈ 2.0 eV), enabling, in turn, to extend sunlight utilization. ,,,, …”

Strategically designed trimetallic catalyst with minimal Ru addresses both water dissociation and hydride poisoning barriers in alkaline HER

“…Besides, given that electrochemical reactions arise especially from the surface-active sites of the catalyst, the amount of active material or sites (per unit area) exposed to the electrolyte decreases with an increase in the thickness of the CoMoRu deposits. 54 Therefore, in our case, 25 min is the optimized deposition time to achieve a high electrochemical performance.…”

Electrodeposición De Dióxido De Manganeso Electrolítico en Sustratos De Carbón a Partir De Lixiviados De Pilas Alcalinas Agotadas

“…Se estudió el comportamiento de un electrodo de carbono vítreo [16] en los lixiviados N°5 y N° 7, por voltametría cíclica [17][18][19][20][21][22][23][24] en un rango de potenciales 0 a 1.4 V (ECS). Los lixiviados fueron diluidos al 50% cuidando de que el pH no sea mayor a 0.5.…”