Results 31 to 40 of about 12,021 (226)

Synthesis of Highly Purified Tetramethylammonium Hydroxide Solution

Denki Kagaku oyobi Kogyo Butsuri Kagaku, 1996
Tetramethylammonium hydroxide (TMAH) solution free from Cl ion was synthesized by electrolysis of the corresponding formate and hydrogencarbonate salts in an electrolytic cell with a cation exchange membrane. As formate salt was used as intermediate of TMAH synthesis, the TMAH solution was contaminated by a small amount of formic acid, while the high ...
Osamu YAGI, Shunpei SHIMIZU
openaire   +2 more sources

Synthesis of ω-Chloroalkyl Aryl Ketones via C–C Bond Cleavage of tert-Cycloalkanols with Tetramethylammonium Hypochlorite

Molecules
An oxidative C–C bond cleavage of tert-cycloalkanols with tetramethylammonium hypochlorite (TMAOCl) has been developed. TMAOCl is easy to prepare from tetramethylammonium hydroxide, and the combination of TMAOCl and AcOH effectively promoted the C–C bond
Natsumi Hanazawa, Masami Kuriyama, Kosuke Yamamoto, Osamu Onomura   +3 more
doaj   +1 more source

Acute toxicity of cerium oxide, titanium oxide and iron oxide nanoparticles using standardized tests [PDF]

, 2001
In this study, several standard toxicity tests have been performed on selected inorganic nanoparticles. Acute toxicity tests were selected according to their extensive use in toxicological studies and included phytotoxicity using several seeds, Daphnia ...
Ana García, Barata, Carlos, Casals, Eudald, Delgado Ramisa, Lucía, Espinosa, Roser, Font, Xavier, González, Edgar, Puntes, Víctor, Sánchez Ferrer, Antoni   +8 more
core   +2 more sources

Recent applications of tetramethylammonium hydroxide (TMAH) in the sample preparation for elemental analysis by spectroanalytical techniques

Advances in Sample Preparation
Application of tetramethylammonium hydroxide for the treatment of samples prior to elemental analysis over the last five years is approached in this review article.
Uillian Mozart Ferreira Mata Cerqueira, Juscelia Pereira Santos Alves, Walter Nei Lopes Santos, Bernardo da Silva Pita, Cleber Galvão Novaes, Sulene Alves Araújo, Marcos Almeida Bezerra   +6 more
doaj   +1 more source

Mathematical modeling of transesterification process kinetics of triglycerides catalyzed by TMAH [PDF]

MATEC Web of Conferences, 2019
Biodiesel is a renewable fuel mainly produced by methylation of triglycerides of vegetable oils or animal fats. The production processes nowadays are particularly based on the utilization of inorganic alkali catalysts. However, it has been proved that an
Šánek Lubomír, Jiří Pecha, Husár Jakub, Kolomazník Karel   +3 more
doaj   +1 more source

AlGaN /GaN superlattice based p-channel field effect transistor (pFET) with TMAH treatment

, 2019
To realize the full spectrum of advantages that the III-nitride materials system offers, the demonstration of p-channel III-nitride based devices is valuable.
Hatui, Nirupam, Jang, Raina, Keller, Stacia, Koksaldi, Onur, Krishna, Athith, Mishra, Umesh, Raj, Aditya   +6 more
core   +1 more source

Hydrothermal Synthesis of Platinum Group Metal Nanoparticles [PDF]

, 2011
A novel route for the synthesis of platinum group metal nanoparticles has been reported. The synthesis is based on the addition of tetramethylammonium hydroxide (TMAH) to the aqueous PtCl(4), IrCl(3) or Rh(NO(3))(3) solution followed by the hydrothermal ...
Krehula, Stjepko, Musić, Svetozar
core   +2 more sources

MXene/PEDOT Functional Coatings on Flexible Microelectrode Arrays for Multianalyte In Vivo Neurochemical Sensing and Electrophysiology

Advanced Functional Materials, EarlyView.
A MXene/PEDOT coating enables multimodal functionality and dual‐analyte detection of dopamine and serotonin in flexible microelectrode arrays while enhancing electrophysiological recording quality. The anti‐fouling, low‐impedance interface overcomes key limitations of conventional coatings, providing a robust and versatile platform to investigate the ...
Ilaria Gatti, Karamullah Eisawi, Umisha Siwakoti, Greyson Jadwin, Ashmita Sigdel, Michela Chiappalone, Deepak Kumbhare, Michael Naguib, Elisa Castagnola   +8 more
wiley   +1 more source

Efficient and selective microwave-assisted O-methylation of phenolic compounds using tetramethylammonium hydroxide (TMAH)

Green Processing and Synthesis, 2019
In this study, an efficient method for O-methylation of phenolic compound using tetramethylammonium hydroxide (TMAOH) as a new alkylating agent under microwave irradiation was developed.
Gholipour Fatemeh, Rahmani Mohammad, Panahi Farhad   +2 more
doaj   +1 more source

Enhanced Light Extraction of Flip-Chip Mini-LEDs with Prism-Structured Sidewall

Nanomaterials, 2019
Current solutions for improving the light extraction efficiency of flip-chip light-emitting diodes (LEDs) mainly focus on relieving the total internal reflection at sapphire/air interface, but such methods hardly affect the epilayer mode photons.
Bin Tang, Jia Miao, Yingce Liu, Hui Wan, Ning Li, Shengjun Zhou, Chengqun Gui   +6 more
doaj   +1 more source