Results 81 to 90 of about 582,485 (334)
Indonesian Journal of Chemistry, 2020 Syzygium polyanthum, known as salam in Indonesia, which is rich in phenolics compounds with high antioxidant activity. In this study, we performed the determination of total phenolics and characterization of the antioxidant activity of S.
Eti Rohaeti +2 more
doaj +1 more source
Microresonator-based high-resolution gas spectroscopy
, 2017 In recent years, microresonator-based optical frequency combs have created up opportunities for developing a spectroscopy laboratory on a chip due to its broadband emission and high comb power.
Gaeta, Alexander L. +4 more
core +1 more source
Differential antifungal activity of human and cryptococcal melanins with structural discrepancies [PDF]
, 2017 Indexación: Scopus.Melanin is a pigment found in all biological kingdoms, and plays a key role in protection against ultraviolet radiation, oxidizing agents, and ionizing radiation damage. Melanin exerts an antimicrobial activity against bacteria, fungi,
Correa, N. +8 more
core +1 more source
Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions
Advanced Functional Materials, EarlyView.DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng +7 more
wiley +1 more source
Investigation on the Electrical Properties of CdO/ZnO thin films using THz Spectroscopy [PDF]
, 2019 In this work, we study the electrical properties of transparent conducting oxides using physical and optical techniques. The objective is to characterize the conductivity of a series of cadmium oxide zinc-oxide thin films with varying cadmium ...
Molina, Ramon
core +1 more source
Central mode and soft mode behavior in PbMg1/Nb2/3O3 relaxor ferroelectric
, 2004 The relaxor ferroelectric PbMg1/Nb2/3O3 was investigated by means of broad-band dielectric and Fourier Transform Infrared (FTIR) transmission spectroscopy in the frequency range from 1 MHz to 15 THz at temperatures between 20 and 900 K using PMN films on
Bovtun, V. +5 more
core +1 more source
Structural changes in lipid-free humic acids during composting of sewage sludge [PDF]
, 2005 Structural changes in humic acids (HAs), extracted after lipid removal from sewage sludge during composting, were investigated using various chemical methods (elemental analysis, Fourier transform infrared spectroscopy and 13C-nuclear magnetic resonance
Amir, Soumia +3 more
core +3 more sources
FTIR study of hydrotalcite [PDF]
Acta Chimica Slovaca, 2018 Abstract The aim of the research was the study of aluminium-magnesium hydrotalcite by FTIR analysis and detection of differences in structure due to calcination. Three types of samples were analysed. In the first two samples, cobalt was added into the structure and the third sample contained nickel and zinc.
Miroslava Mališová +4 more
openaire +1 more source
Advanced Functional Materials, EarlyView.Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang +9 more
wiley +1 more source
Indonesian Journal of Chemistry, 2020 Flavonoid is phenolic compounds consisting of fifteen carbon atoms and is commonly found in plants. Infrared (IR) spectroscopy combined with chemometrics, has been developed for a simple analysis of flavonoid in the medicinal plant leaves powder.
Lestyo Wulandari +2 more
doaj +1 more source