The optical absorption of nanoscale hematite is based on electron transitions which are therefore decisive for the application of the particles in photooxidation. Hence, the absorption of hematite in the UV and visible region has been thoroughly studied2,35,43,63. Fig.4shows the change in the ab...
namically stable at given temperature and pressure, expressed as dG = V ⋅ dP − S ⋅ dT + ∑µi ⋅ dNi i (1) Equation (1) relates the change in Gibbs free energy to the sum of products of volume V, entropy S, chemical tphoetednrtiivailnμgi and the force of ...
In this work the formation Fe(II)-Fe(III) green rust was observed before further oxidation into the final oxidation products, mainly a spinel structure with ferric oxyhydroxydes as minor by-products. As will be discussed in the following section, the partial substitution of Fe by Mn species ...
We investigate the effects of the molar ratio (x) of PbBr2 on the phases, microstructure, surface morphology, optical properties, and structural defects of mixed lead halides PbI2(1−x)Br2x for use in solar cell devices. Results indicate that as x increased to 0.3, the surface morphology ...
Russian Academy of Sciences, 450054 Ufa, Russia 2 RN–BashNIPIneft LLC, 450103 Ufa, Russia * Correspondence: voloshinai3@mail.ru or voloshinai@bnipi.rosneft.ru; Tel.: +7-917-470-6695 Abstract: This review covers the types and applications of chemical inhibitors of gas hydrate for- mation...
Based on the chemical reaction equation, the following substrate–product relationships may be obtained: A–B, A–C, B–C, and B–D [5,6] (see Figure 1c). However, some of these substrate–product relationships may not meaningful in terms of atomic traces. In particular, these problems ...
Some of these properties are controlled by the chemical compositions of the base oils whereas other properties are controlled by specifically designed chemical additives [2]. Additives used in lubricants can be grouped into different categories such as friction and wear modifiers, antioxidants, rust ...
environments Article Optimization of a Green Extraction/Inclusion Complex Formation Process to Recover Antioxidant Polyphenols from Oak Acorn Husks (Quercus Robur) Using Aqueous 2-Hydroxypropyl-β-Cyclodextrin/Glycerol Mixtures Katerina Kyriakidou 1, Ioannis Mourtzinos 2, Costas G. Biliaderis 2 and ...