scholarly journals Quaternary Ammonium Hydroxide-assisted Solvothermal Synthesis of Monodispersed ITO Nanoparticles with a Cubic Shape

2013 ◽  
Vol 42 (7) ◽  
pp. 738-740 ◽  
Author(s):  
Kiyoshi Kanie ◽  
Takafumi Sasaki ◽  
Masafumi Nakaya ◽  
Atsushi Muramatsu
Keyword(s):  
Quaternary Ammonium ◽  
Solvothermal Synthesis ◽  
Ammonium Hydroxide ◽  
Ito Nanoparticles

High Performance ITO Nanoparticles as Nanoink for Printing as a Substitute Process of Sputtering

2014 ◽  
Vol 1699 ◽  
Author(s):  
Atsushi Muramatsu ◽  
Kiyoshi Kanie ◽  
Takafumi Sasaki ◽  
Masafumi Nakaya
Keyword(s):  
Thin Film ◽  
Film Thickness ◽  
Crystalline Structure ◽  
Quaternary Ammonium ◽  
High Performance ◽  
Ammonium Hydroxide ◽  
Recycling Process ◽  
Tin Oxides ◽  
Ca 50 ◽  
Ito Nanoparticles

ABSTRACTGenerally, indium-tin-oxides (ITO) thin film is prepared by the sputtering process with ITO target, but only 20% of ITO yielded from the target is deposited on the substrate. Namely, about 80% ITO is exhausted by the deposition elsewhere far from the substrate. The recycling process is limited so that ca 20% ITO of the starting target is lost without any recovery. Even if the recycling of ITO has been carried out in this process, we should prepare ITO target of 5 times more than apparent use of ITO on film. If we change it to printing process from the sputtering, the reduction in ITO use is expected as ca. 50%, considering the increase in film thickness by printing. Our target technology also includes ITO nanoink for the project. As a result, monodispersed ITO nanoparticles (NPs) with a cubic shape were fabricated by using quaternary ammonium hydroxide-assisted metal hydroxide organogels. These NPs have perfect uniformity in size with beautiful shape, and perfect single crystalline structure including Sn. As we were attempted to make thin film with ITO nanoink, it was successfully fabricated below 200 nm in thickness and the resistivity was drastically decreased below 1.0 x 10-3 Ω cm after heat treatments. GZO nanoink as substitute of ITO has also been developed.

scholarly journals The role of urea in the solubility of cellulose in aqueous quaternary ammonium hydroxide

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 5919-5929
Author(s):  
Mikayla G. Walters ◽  
Albaraa D. Mando ◽  
W. Matthew Reichert ◽  
Christy W. West ◽  
Kevin N. West ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Ammonium Hydroxide ◽  
Tetrabutylammonium Hydroxide

We examine the role of water and urea in cellulose solubility in tetrabutylammonium hydroxide (TBAH).

Anion conductive poly(arylene ether sulfone)s containing tetra-quaternary ammonium hydroxide on fluorenyl group for alkaline fuel cell application

2012 ◽  
Vol 86 ◽  
pp. 360-365 ◽  
Author(s):  
Dong Wan Seo ◽  
Md. Awlad Hossain ◽  
Dong Hoon Lee ◽  
Young Don Lim ◽  
Soon Ho Lee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Quaternary Ammonium ◽  
Ammonium Hydroxide ◽  
Alkaline Fuel Cell ◽  
Arylene Ether ◽  
Fuel Cell Application

Effect of Carbonate Anions on Quaternary Ammonium-Hydroxide Interaction

2019 ◽  
Vol 123 (26) ◽  
pp. 15956-15962 ◽  
Author(s):  
Simcha Srebnik ◽  
Srdjan Pusara ◽  
Dario R. Dekel
Keyword(s):  
Quaternary Ammonium ◽  
Ammonium Hydroxide

Catalytic Alkynylation of Ketones and Aldehydes Using Quaternary Ammonium Hydroxide Base

2003 ◽  
Vol 68 (9) ◽  
pp. 3702-3705 ◽  
Author(s):  
Teruhiko Ishikawa ◽  
Tomohiro Mizuta ◽  
Kumiko Hagiwara ◽  
Toshiaki Aikawa ◽  
Takayuki Kudo ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Ammonium Hydroxide

Preparation and Characterization of Stable TiO2 Colloid Composing of Nearly Monodispersive TiO2 Nanocrystallite

2013 ◽  
Vol 798-799 ◽  
pp. 63-66
Author(s):  
Hong Liang Li ◽  
Ai Ping Fu ◽  
Chao Wang ◽  
Yan Zi Wu
Keyword(s):  
Quaternary Ammonium ◽  
Anatase Phase ◽  
Ammonium Hydroxide ◽  
Ultrasound Irradiation ◽  
Titanium Isopropoxide ◽  
Organic Additive ◽  
Molar Ratio

Stable TiO2 colloids composing of narrow size distrubuted anatase TiO2 nanocrystals were prepared using quaternary ammonium hydroxide, such as Me4NOH, Et4NOH and Bu4NOH, as catalyst. TEM and UV-Vis spectra measurements showed that the TiO2 colloids are quite stable in air or under ultrasound irradiation and the size of the TiO2 particles of the colloids can be tuned by changing the molar ratio of Titanium isopropoxide and the organic additive. The additive can be removed when the dried gel were calcined at 450°C for two hours, resulting in pure TiO2 nanocrystal in anatase phase.

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