A facile microwave-assisted combustion synthesis of NiCoFe2O4 anchored polymer nanocomposites as an efficient electrode material for asymmetric supercapacitor application

2022 ◽  
Vol 48 ◽  
pp. 103965
Author(s):  
V. Siva ◽  
A. Murugan ◽  
A. Shameem ◽  
S. Thangarasu ◽  
S. Asath Bahadur
2019 ◽  
Vol 776 ◽  
pp. 993-1001 ◽  
Author(s):  
Beirong Ye ◽  
Miaoliang Huang ◽  
Leqing Fan ◽  
Jianming Lin ◽  
Jihuai Wu

2021 ◽  
Vol 400 (1) ◽  
pp. 2100179
Author(s):  
Snehal L. Kadam ◽  
Rahul S. Ingole ◽  
Nidhi Tiwari ◽  
Shrinivas Kulkarni

2021 ◽  
Vol 15 (2) ◽  
pp. 128-135
Author(s):  
Thaís Luiz ◽  
Fabio Nakagomi ◽  
Reny Renzetti ◽  
Guilherme Siqueira

The microwave assisted combustion synthesis (MACS) as a new, quick and low cost synthesis method was used for preparation of niobium pentoxide (Nb2O5) powders. The present paper investigated the effect of reactant concentrations (ammonium niobium oxalate, urea and ammonium nitrate) on the characteristics of Nb2O5 nanoparticles. Three samples were synthesized with stoichiometric ratio between the fuel and oxidant (C1), excess of oxidant (C2) and excess of fuel (C3). In all samples, Nb2O5 crystalline nanoparticles with irregular morphology were detected. The synthesis of nanoparticles with smaller diameter in the C2 and C3 samples was confirmed by greater values of band gap energy measured through UV-Visible diffuse reflectance spectroscopy (indicating quantum confinement) and by the Rietveld refinement of X-ray diffraction patterns. The results showed that the amounts of oxidant and fuel can change synthesis temperature, influencing the final characteristics of the particles, such as size and existent phases. In these cases the excess of oxidant and fuel in the C2 and C3 samples, respectively, decreases the average synthesis temperature and decelerates the particle growth and the formation of the monoclinic phase.


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