37 research outputs found
A comparitive investigation of electrochemical charge storage properties on β, γ, δ and λ-MnO2 nanoparticles
No full textPerovskite Oxides as Advanced Energy Materials for Solid Oxide Fuel Cell and Supercapacitor Applications
No full textMetallic 1T-MoS<sub>2</sub> with defect induced additional active edges for high performance supercapacitor application
No full textInfluence of thiourea on the formation of active-edges and the metallic phase of MoS2 and investigation of its energy storage properties.</p
Impact of crystalline defects and size on X-ray line broadening: A phenomenological approach for tetragonal SnO2 nanocrystals
No full textImpact of crystalline defects and size on X-ray line broadening: A phenomenological approach for tetragonal SnO2 nanocrystals
No full textNanocrystalline tin oxide (SnO2) powders with different grain size were prepared by chemical precipitation method. The reaction was carried out by varying the period of hydrolysis and the as-prepared samples were annealed at different temperatures. The samples were characterized using X-ray powder diffractometer and transmission electron microscopy. The microstrain and crystallite size were calculated for all the samples by using Williamson-Hall (W-H) models namely, isotropic strain model (ISM), anisotropic strain model (ASM) and uniform deformation energy density model (UDEDM). The morphology and particle size were determined using TEM micrographs. The directional dependant young’s modulus was modified as an equation relating elastic compliances (sij) and Miller indices of the lattice plane (hkl) for tetragonal crystal system and also the equation for elastic compliance in terms of stiffness constants was derived. The changes in crystallite size and microstrain due to lattice defects were observed while varying the hydrolysis time and the annealing temperature. The dependence of crystallite size on lattice strain was studied. The results were correlated with the available studies on electrical properties using impedance spectroscopy
Humic Acid Coated Phosphatic Fertilizers Enhance Growth, Yield and Phosphorus Uptake of Maize Crop in Alkaline Soil
No full textPhosphorus availability to crop is one of the major causes of poor crop production worldwide. Effect of inorganic phosphorus (P) fertiliser sources, i.e., nitro phosphate (NP), di-ammonium phosphate (DAP) and single superphosphate (SSP) coated with different humic acid levels on crop production and P utilization efficiency (PUE) of maize was studied
