The thermal emission of alkali metal ions from Al30-pillared montmorillonite in comparison with its natural form was studied by mass spectrometry in the temperature range 770-930 K. The measurements were carried out on a magnetic mass spectrometer MI-1201. For natural montmorillonite, the densities of the emission currents (j) decrease in the mass spectrum in the following sequence (T = 805 K, ...

This study aimed to reveal the electrical characteristics of composite electrodes Li-ion batteries. LiCoO2 were analyzed using atomic force microscopy, and three-dimensional datasets current–voltage (I–V) curves (IV-datacubes) obtained. The IV-datacubes then principal component analysis determine typical I–V curve corresponding each particle on a statistical basis. Detailed based thermionic emi...

Preparation procedures and thermionic emission properties of graphitic carbon nanofibres (GCNFs) supported on Si wafer or commercial carbon felt supports are reported. GCNF/native-oxide Si wafer, GCNF/oxidized Si wafer, GCNF/Ni-coated Si wafer and GCNF/carbon felt nanocomposites are obtained by growing GCNFs from growth catalyst nanoparticles supported on these supports. Narrow herringbone GCNF...

Thermal emission plays a critical role in a wide variety of applications, including adjusting radiative losses in photovoltaics and selective solar absorbers, as well as enhancing the emission of high energy photons for thermophotovoltaics and photon-enhanced thermionic emission. In this work, we consider the benefit to thermal emission associated with replacing conventional mirrors with meta-m...

Introduction This research involves the study of the use of diode laser excitation to alter/enhance the production of cesium (Cs) ions in the gap of a Cs-filled ignited (arc) or unignited Thermionic Energy Converter (TEC). Continuous-wave laser energy addition tuned to an excited electronic transition in Cs is used to “inject” ions/plasma at levels sufficient for space-charge neutralization of ...