A solvothermal single-step route towards shape-controlled titanium dioxide nanocrystals

2011 ◽  
Vol 90 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Cao-Thang Dinh ◽  
Thanh-Dinh Nguyen ◽  
Freddy Kleitz ◽  
Trong-On Do
Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1331
Author(s):  
João F. A. Silva ◽  
Tânia M. T. Carvalho ◽  
Margarida L. Almeida ◽  
Paula Pereira ◽  
Helena Sousa ◽  
...  

Titanium dioxide is considered the most efficient white pigment for opacification of thermoplastics. However, its high cost, combined with strong price oscillations due to production bottlenecks, has been driving the industry towards alternatives that might allow reducing the titanium dioxide content, while maintaining the product’s opacity. A strategy commonly used in waterborne paints consists in adding hollow polymer particles to the formulation, therefore achieving opacification due to light refraction at the air/polymer interface. In the current work, we show preliminary results that indicate that a similar strategy can be followed for thermoplastics opacification, as long as thermoset particles are used, in order to ensure preservation of the hollow geometry during melt-processing. Multi-vesiculated crosslinked styrene–polyester particles, produced by a single-step double emulsion process, are used. Evidence of synergic interaction between the multi-hollow particles and titanium dioxide has been found.


2018 ◽  
Vol 5 (5) ◽  
pp. 172158 ◽  
Author(s):  
Daniel Burkitt ◽  
Justin Searle ◽  
Trystan Watson

The fabrication of perovskite solar cells in an N-I-P structure with compact titanium dioxide blocking, mesoporous titanium dioxide scaffold, single-step perovskite and hole-transport layers deposited using the slot-die coating technique is reported. Devices on fluorine-doped tin oxide-coated glass substrates with evaporated gold top contacts and four slot-die-coated layers are demonstrated, and best cells reach stabilized power conversion efficiencies of 7%. This work demonstrates the suitability of slot-die coating for the production of layers within this perovskite solar cell stack and the potential to transfer to large area and roll-to-roll manufacturing processes.


2014 ◽  
Vol 53 (14) ◽  
pp. 5749-5758 ◽  
Author(s):  
Sajid I. Mogal ◽  
Vimal G. Gandhi ◽  
Manish Mishra ◽  
Shilpa Tripathi ◽  
T. Shripathi ◽  
...  

Author(s):  
Hiroto Eguchi ◽  
Kenichi Kato ◽  
Gergely Juhász ◽  
Miho Yamauchi

We applied various shape-controlled TiO2 nanoparticles (NPs) for the electrochemical reduction to produce an alcoholic compound. Catalytic activity depended on the shape of TiO2 NPs. Computational studies revealed that high...


RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15118-15125 ◽  
Author(s):  
Vincent Jouenne ◽  
Jean-Luc Duvail ◽  
Luc Brohan ◽  
Eric Gautron ◽  
Mireille Richard-Plouet

A comprehensive, low-temperature strategy for obtaining optimized, dense and nanostructured TiO2 thin films is proposed.


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