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The relation between structural features and electrochemical activity of MnO2 nanoparticles synthesized from a polyol-made Mn 3O4 precursor
(2013-07-01)
A simple hybrid synthesis processing method was developed to synthesize γ-MnO2 nanocrystalline particles. The polyol method was modified by the addition of nitric acid in order to allow the synthesizing of single-phase ...
The relation between structural features and electrochemical activity of MnO2 nanoparticles synthesized from a polyol-made Mn 3O4 precursor
(2013-07-01)
A simple hybrid synthesis processing method was developed to synthesize γ-MnO2 nanocrystalline particles. The polyol method was modified by the addition of nitric acid in order to allow the synthesizing of single-phase ...
Photo-assisted charge/discharge of a secondary cell of α-Fe2O3/Prussian blue–based electrodes
(Springer Science and Business Media Deutschland GmbH, 2021-01-07)
In this work, an assembly of FTO/α-Fe2O3/PB|M+ electrolyte|PB/α-Fe2O3/FTO (M+ = Li+, Na+, K+) secondary photocell was done to improve the charge capacity in the presence of illumination. Our previous results with these ...
Evaluación de polipirrol dopado con compuestos tipo porfirina para la aplicación en supercapacitores
(Universidad de los AndesMaestría en QuímicaFacultad de CienciasDepartamento de Química, 2020)
Polypyrrole (PPy) films were synthesized with some dopants like p-toluenesulfonic acid (PTSA), 5,10,15,20-tetrakis (4-sulfonatophenyl)porphyrin (TPPS) and coordination complex ZnTPPS. The synthesis was performed by a ...
Effect of binders performance aproticLi-O2 cells
(2017)
theoretical density of gasoline, making it very attractive. However, actual efficiency is much lower
than the theoretical value mainly due to problems with unwanted reactions generating overpotentials
because of decomposition ...
Armazenagem eletroquímica de hidrogênio: um estudo do comportamento dos metais Pd, Nb e V
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2020-07-22)
Developing safe, reliable, efficient and cost-effective methods for hydrogen storage is a scientific and technological challenge. Among possible methods to store hydrogen, storing it in tanks in the liquid or compressed ...
Low-cost supercapacitor based on colloidal graphite
(2021-01-01)
Here we report the production and characterization of a low-cost supercapacitor with electrodes based on colloidal graphite. We characterized the as-prepared device in terms of cyclic voltammetry (CV), Galvanostatic ...