scholarly journals Experimental study of the stability and synthesis of the tourmaline supergroup minerals

2019 ◽  
Vol 64 (10) ◽  
pp. 1064-1078
Author(s):  
T. V. Setkova ◽  
V. S. Balitsky ◽  
Yu. B. Shapovalov
Keyword(s):  
Experimental Study ◽  
Growth Rate ◽  
Chemical Composition ◽  
Chemical Stability ◽  
Hydrothermal Solutions ◽  
High Chemical ◽  
Complex Chemical ◽  
Complex Chemical Composition ◽  
The Stability ◽  
High Chemical Stability

Tourmaline is one of the most widespread minerals in nature and one of the most popular gems and promising piezoelectric material. The growth of large crystals is today a topical task. With the growth of tourmaline single crystals appears problems associated with its complex chemical composition, high chemical stability in hydrothermal solutions and a low growth rate. The paper reviews of recent work on the tourmaline synthesis and the results obtained in IEM RAS.

Behavior of Some Varieties in the Kernel Group to the Attack of the Main Pathogens

2018 ◽  
Vol 12 (2) ◽  
pp. 1-7
Author(s):  
Sînziana Venera Morărița
Keyword(s):  
Chemical Composition ◽  
Climatic Conditions ◽  
Complex Chemical ◽  
Complex Chemical Composition ◽  
Large Production ◽  
Special Quality

Abstract Although relatively recent, peach culture has grown great in our country due to the special quality of the fruit, its very complex chemical composition and the large production that can be obtained without much effort. Peach is a species slightly adapted to our climatic conditions, suffers from winter frost, but can provide productive and long productions of 10-15 years.

Experimental study of the stability of aluminate-borate complexes in hydrothermal solutions 1 1Associate editor: L. G. Benning

2004 ◽  
Vol 68 (6) ◽  
pp. 1333-1345 ◽  
Author(s):  
Boris Tagirov ◽  
Jacques Schott ◽  
Jean-Claude Harrichoury ◽  
Jocelyne Escalier
Keyword(s):  
Experimental Study ◽  
Hydrothermal Solutions ◽  
Borate Complexes ◽  
The Stability

scholarly journals TiO2-Coated ZnO Nanowire Arrays: A Photocatalyst with Enhanced Chemical Corrosion Resistance

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1289
Author(s):  
Lan Gao ◽  
Elyes Nefzaoui ◽  
Frédéric Marty ◽  
Mazen Erfan ◽  
Stéphane Bastide ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Large Scale ◽  
Organic Dyes ◽  
Synthesis Method ◽  
Atomic Layer ◽  
Strong Acid ◽  
Tio2 Coating ◽  
High Chemical ◽  
Chemical Corrosion ◽  
High Chemical Stability

Photocatalysis is proven to be the most efficient and environmentally friendly method for the degradation of organic pollutants in water purification. To meet the requirement of large-scale water treatment, there are two important points: One is the lifetime and chemical stability of the photocatalyst material, especially in the complex and harsh aqueous conditions. The other is the ease of synthesis of such photocatalysts with specific nano-morphology. In this work, two common photocatalyst materials, zinc oxide (ZnO) and titanium dioxide (TiO2), are selected to form more sustainable photocatalysts with high chemical stability. This involves the combination of both TiO2 and ZnO in a two-step simple synthesis method. It appears advantageous to exploit the conformal deposition of atomic layer deposition (ALD) to achieve nanometer-thick TiO2 coating on ZnO nanowires (NWs) with a high aspect ratio, which are firmly anchored to a substrate and exhibit a large specific surface area. The high chemical stability of the ALD TiO2 coating has been investigated in detail and proven to be effective under both strong acid and strong alkaline aqueous solutions. In addition, photocatalysis experiments with organic dyes show that via this simple two-step synthesis method, the produced ZnO/TiO2 tandem does indeed exhibit improved chemical stability in a harsh environment, while allowing efficient photodegradation.

Beans (Phaseolus vulgaris L.): whole seeds with complex chemical composition

2018 ◽  
Vol 19 ◽  
pp. 63-71 ◽  
Author(s):  
Francine Gomes Basso Los ◽  
Acácio Antonio Ferreira Zielinski ◽  
José Pedro Wojeicchowski ◽  
Alessandro Nogueira ◽  
Ivo Mottin Demiate
Keyword(s):  
Chemical Composition ◽  
Phaseolus Vulgaris ◽  
Phaseolus Vulgaris L ◽  
Complex Chemical ◽  
Complex Chemical Composition

scholarly journals Annulated Dialkoxybenzenes as Catholyte Materials for Non-aqueous Redox Flow Batteries: Achieving High Chemical Stability through Bicyclic Substitution

2017 ◽  
Vol 7 (21) ◽  
pp. 1701272 ◽  
Author(s):  
Jingjing Zhang ◽  
Zheng Yang ◽  
Ilya A. Shkrob ◽  
Rajeev S. Assary ◽  
Siu on Tung ◽  
...  
Keyword(s):  
Chemical Stability ◽  
High Chemical ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
High Chemical Stability

Novel enantiomorphic Pb-coordination polymers dictated by the corresponding chiral ligands, [Pb((R,R)-TBA)(H2O)]·1.7H2O and [Pb((S,S)-TBA)(H2O)]·1.7H2O [TBA = 1,3,5-triazin-2(1H)-one-4,6-bis(alanyl)]

2021 ◽  
Author(s):  
Yunseung Kuk ◽  
Kang Min Ok
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Chemical Stability ◽  
Congo Red ◽  
Chiral Ligands ◽  
High Chemical ◽  
Selective Uptake ◽  
Congo Red Dye ◽  
Red Dye ◽  
High Chemical Stability

Two enantiomorphic Pb-coordination polymers dictated by the corresponding chiral ligands reveal high chemical stability and a selective uptake of Congo red dye through the hydrogen bonds.

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