Physical Analysis and Mathematical Modeling of the Hydrogen Storage Process in the MmNiMn Compound.

The results of an experimental and mathematical study into the MmNiMn compound's hydrogen storage properties are presented in the present research. Plotting and discussion of the experimental isotherms (P-C-T) for different starting temperatures (288 K, 298 K, 308 K, and 318 K) were carried out first. Then, the enthalpy and entropy of formation (ΔH, ΔS) were deduced from the plot of van't Hoff.

A study of the magnetic properties of LaNi and their effect on hydrogen desorption under theaction of a magnetostatic field.

A study of the magnetic properties of LaNi intermetallic compoundand and their effect on desorption reaction was carried out as a function of temperature. A Vibrating Sample Magnetometer (VSM) was used for the magnetic measurements and a Metal Hydrogen Reactor (MHR) supplied by a constant current through a coil was used for the hydrogen desorption reaction under the action of a magnetostatic field. Then, the hysteresis cycle, the first magnetization curve, the thermo-magnetization curves and the desorbed hydrogen mass were determined.

Lead-free double perovskite CsMBiCl (M = Ag, Cu): insights into the optical, dielectric, and charge transfer properties.

Recently, double perovskites have shown excellent potential considering the instability and toxicity problems of lead halide perovskites in optoelectronic devices. Here, the double perovskites CsMBiCl (M = Ag, Cu) were successfully synthesized the slow evaporation solution growth technique. The cubic phase of these double perovskite materials was verified through the X-ray diffraction pattern.

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl.

In the field of commercialization, lead-free metal halide perovskite materials are becoming more popular these days because of their prospective use in solar cells and also in other optoelectronic applications. In this paper, a non-toxic CsSnCl metal halide is successfully synthesized the slow evaporation solution growth technique. Such systematic characterizations as differential scanning calorimetry (DSC) measurements, dielectric measurements, and variable-temperature structural analyses indicate that CsSnCl goes through a reversible phase transformation at = 391/393 K from the monoclinic to the cubic system.