Publications by authors named "Narendar Nasani"
Pila virens (P. virens) is an edible freshwater snail, widely distributed in Asia and Africa. P.
View Article and Find Full Text PDFIn glasses, a sodium ion (Na) is a significant mobile cation that takes up a dual role, that is, as a charge compensator and also as a network modifier. As a network modifier, Na cations modify the structural distributions and create nonbridging oxygens. As a charge compensator, Na cations provide imbalanced charge for oxygen that is linked between two network-forming tetrahedra.
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- One-dimensional Haldane gap materials, like rare earth barium chain nickelates, exhibit strong spin antiferromagnetic properties and unique structures that make them interesting for thermoelectric applications.
- The material CaBaGdNiO shows impressive Seebeck coefficients of 140-280 μV K at high temperatures, maintained even with significant acceptor-substitution levels due to low dimensionality and electronic correlations.
- Despite low thermal conductivities of around 1.5 W m K, ideal for thermoelectrics, the electrical conductivity of these materials is still insufficient, highlighting the need to improve electronic band structures and microstructural features to boost charge carrier mobility.
This study highlights that Fe additives offer better catalytic properties than carbon, Fe-C (iron carbide/carbon composites), and Fe-Mg (Mg FeH ) additives for the low-temperature dehydrogenation of magnesium hydride. The in situ X-ray diffraction measurements prove the formation of a Mg FeH phase in iron additive loaded MgH . Nonetheless, differential scanning calorimetry data suggest that this Mg FeH phase does not have any influence on dehydrogenation properties of MgH .
View Article and Find Full Text PDFThe present study aims to understand the catalysis of the MgH2 -Nb2 O5 hydrogen storage system. To clarify the chemical interaction between MgH2 and Nb2 O5 , the mechanochemical reaction products of a composite mixture of MgH2 +0.167 Nb2 O5 was monitored at different time intervals (2, 5, 15, 30, and 45 min, as well as 1, 2, 5, 10, 15, 20, 25, and 30 h).
View Article and Find Full Text PDFThe current work demonstrates how tailoring the transport properties of thin ceria-based buffer layers in solid oxide fuel or electrolyser cells can provide the necessary phase stability against chemical interaction at the electrolyte/electrode interface, while also providing radical improvements in the electrochemical performance of the oxygen electrode. Half cells of Ce0.8R0.
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