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Now showing items 21-30 of 43
Stabilizing Dendron-modified Talc-based Electrolyte For Quasi-solid Dye-sensitized Solar Cell
(Pergamon-Elsevier Science LTDOxford, 2017)
Ring-opening polymerization of ε-caprolactone by iodine charge-transfer complex
(John Wiley & Sons Inc, 2002-12)
The ring-opening polymerization of ε-caprolactone (ε-CL) catalyzed by iodine (I2) was studied. The formation of a charge-transfer complex (CTC) among triiodide, I3-, and ε-CL was confirmed with ultraviolet-visible spectroscopy. ...
Flow-injection iodimetric determination of captopril in pharmaceutical preparations
(Sociedade Brasileira de Química, 2009)
A simple, fast and low cost procedure for spectrophotometric determination of captopril in pharmaceutical preparations is described. The procedure is based on a flow-injection system exploiting the on-line formation of the ...
On the crystal structure thermal evolution of formamidinium lead tribromide, CH(NH2)2PbBr3
(Royal Society of Chemistry, 2021-11)
Although methylammonium lead triiodide (CH3NH3PbI3) is recognized as the best candidate for photovoltaic applications, unfortunately it undergoes fast degradation when exposed to moisture and mild temperatures. Among hybrid ...
Magnon valley Hall effect in CrI3-based van der Waals heterostructures
(American Physical Society, 2020-05)
Magnonic excitations in the two-dimensional (2D) van der Waals (vdW) ferromagnet chromium triiodide (CrI3) are studied. We find that bulk magnons exhibit a nontrivial topological band structure without the need for ...
Magnon valley Hall effect in CrI3-based van der Waals heterostructures
(American Physical Society, 2020)
Magnonic excitations in the two-dimensional (2D) van der Waals (vdW) ferromagnet chromium triiodide (CrI3) are studied. We find that bulk magnons exhibit a nontrivial topological band structure without the need for ...
Evaluar jarabes multivitaminicos que contienen vitamina c por medio de estabilidad acelerada para comprobar los beneficios para su administracion oral, en el laboratorio farmacéutico ubicado en la ciudad de Guayaquil
(Universidad de Guayaquil. Facultad de Ciencias Químicas, 2015)
Los seres humanos imposibilitados de sintetizar nuestra propia VITAMINA C debemos agregarla a nuestra dieta de forma obligatoria para no padecer de las enfermedades por su carencia reforzando nuestro sistema inmunológico. ...
Síntese e caracterização estrutural de novos compostos organocalcogenoxanos contendo ítrio(III)
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2017-07-26)
This work describes the synthesis and structural characterization of new organochalcogenoxanes polymer and clusters compounds containing yttrium(III) ion. The synthetized compounds have structure of unidimensional coordination ...