Hydrothermal synthesis of strontium titanate: thermodynamic considerations, morphology control and crystallisation mechanisms

CrystEngComm ◽  
2017 ◽  
Vol 19 (28) ◽  
pp. 3867-3891 ◽  
Author(s):  
Giovanna Canu ◽  
Vincenzo Buscaglia
Keyword(s):  
Hydrothermal Synthesis ◽  
Strontium Titanate ◽  
Solvothermal Method ◽  
Morphology Control ◽  
Model System ◽  
System P ◽  
Synthetic Routes

The hydrothermal/solvothermal method is one of the most versatile synthetic routes for producing a large number of compounds. The thermodynamic aspects, the control of morphology and the crystallisation mechanisms are reviewed and discussed in this highlight, with special emphasis on the synthesis of SrTiO3, as a model system.

scholarly journals Hydrothermal Synthesis and Particle Morphology Control of K0.8Li0.27Ti1.73O4 with Lepidocrocite-like Structure

2016 ◽  
Vol 63 (4) ◽  
pp. 185-191
Author(s):  
Yuichi YAMAMOTO ◽  
Teruhiko SETSU ◽  
Takafumi KUSUNOSE ◽  
Kazunari SHINAGAWA ◽  
Qi FENG
Keyword(s):  
Hydrothermal Synthesis ◽  
Particle Morphology ◽  
Morphology Control

The trisubstituted-triazole approach to extended functional naphthalocyanines

2011 ◽  
Vol 15 (09n10) ◽  
pp. 898-907 ◽  
Author(s):  
Michal Juríček ◽  
Kathleen Stout ◽  
Paul H.J. Kouwer ◽  
Alan E. Rowan
Keyword(s):  
Model System ◽  
Modular Approach ◽  
Core Size ◽  
Guest Molecules ◽  
Synthetic Routes ◽  
Atomically Flat

Recently, a novel modular approach to octatriazole-derived phthalocyanines (Pcs; 1) was developed and optimized in our group; herein, the pool of the functional Pc materials was expanded for an additional candidate (2), a fused derivative of 1. Compared with 1, the aromaticity in 2 is extended by an additional four benzene and eight triazole rings and, in addition, the triazole units and the Pc core co-create four functional, in-plane cavities. Various methods to link the unsubstituted carbon atoms of the neighboring triazoles in 1 to afford atomically flat naphthalocyanine (Nc) analogs (2), containing eight fused triazole moieties, were studied. Several synthetic routes were designed, among them the trisubstituted-triazole approach, which was found to be the most suitable route. The crucial steps of this approach, the copper-catalyzed azide-haloalkyne cycloaddition and the intramolecular homocoupling reactions, were first studied on a model system; subsequently, this methodology was applied in the synthesis of the desired Nc 2. The increased core size and the π-electron deficient structure predict this class of Ncs to possess very strong aggregation properties. Moreover, owing to the presence of four tridentate half-cavities, the final properties of the molecule or the assembly can, in principle, be further tuned by doping with metals or guest molecules.

cis-to-trans isomerization of azobenzene investigated by using thin films of metal–organic frameworks

2015 ◽  
Vol 17 (35) ◽  
pp. 22721-22725 ◽  
Author(s):  
Xiaojuan Yu ◽  
Zhengbang Wang ◽  
Maria Buchholz ◽  
Nena Füllgrabe ◽  
Sylvain Grosjean ◽  
...  
Keyword(s):  
Thin Films ◽  
Metal Organic Frameworks ◽  
Model System ◽  
Trans Isomerization ◽  
System P ◽  
Metal Organic

The energetic barrier for the cis-to-trans isomerization of azobenzene was experimentally investigated by using thin films of azobenzene-containing MOFs as well-defined model system.

Probing eumelanin photoprotection using a catechol:quinone heterodimer model system

2019 ◽  
Vol 216 ◽  
pp. 520-537 ◽  
Author(s):  
Christopher Grieco ◽  
Jennifer M. Empey ◽  
Forrest R. Kohl ◽  
Bern Kohler
Keyword(s):  
Model System ◽  
System P

Here, we investigate the photochemistry of a catechol : o-quinone heterodimer as a model system for uncovering the photoprotective roots of eumelanin.

scholarly journals Intramolecular multi-bond strain: the unrecognized side of the dichotomy of conjugated systems

2016 ◽  
Vol 7 (9) ◽  
pp. 5872-5878 ◽  
Author(s):  
Yirong Mo ◽  
Huaiyu Zhang ◽  
Peifeng Su ◽  
Peter D. Jarowski ◽  
Wei Wu
Keyword(s):  
Model System ◽  
Conjugated Systems ◽  
System P ◽  
Bond Strain ◽  
Linear B

Apart from the more familiar π-conjugation, there is also significant π–π repulsion which is a kind of unrecognized intramolecular strain and can be quantified with the linear B4H2 model system.

Selective synthesis of TiO2 nanocrystals with morphology control with the microwave-solvothermal method

CrystEngComm ◽  
2014 ◽  
Vol 16 (9) ◽  
pp. 1817 ◽  
Author(s):  
Claudia Carlucci ◽  
Hua Xu ◽  
Barbara Federica Scremin ◽  
Cinzia Giannini ◽  
Davide Altamura ◽  
...  
Keyword(s):  
Solvothermal Method ◽  
Morphology Control ◽  
Selective Synthesis ◽  
Tio2 Nanocrystals

Mild hydrothermal synthesis and crystal morphology control of LiFePO4by lithium nitrate

2017 ◽  
Vol 11 ◽  
pp. 82-87 ◽  
Author(s):  
R. Martins ◽  
R. Gonçalves ◽  
C.M. Costa ◽  
S. Ferdov ◽  
S. Lanceros-Méndez
Keyword(s):  
Hydrothermal Synthesis ◽  
Crystal Morphology ◽  
Morphology Control ◽  
Lithium Nitrate
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