Results 11 to 20 of about 1,875 (175)

Glucose Oxidase Immobilization on TMAH-Modified Bentonite

open access: yesIndonesian Journal of Chemistry, 2015
The influence of bentonite modification by tetramethyl ammonium hydroxide (TMAH) on its capability to immobilize glucose oxidase (GOX) was studied. Modification of bentonite was conducted by the adding of 0-5% (v/v) TMAH.
Ruth Chrisnasari   +3 more
doaj   +3 more sources

Thermo-acoustic investigation on mixtures of Tetramethyl ammonium hydroxide and caffeine in aqueous medium with the goal to understand their mutual interactions [PDF]

open access: yesBMC Chemistry
The present study explores, for the first time, the physicochemical and molecular interaction behaviour of tetramethylammonium hydroxide (TMAH)–caffeine (CAF) mixtures in aqueous medium.
Amiya Kumar Baral   +2 more
doaj   +2 more sources

Fabrication of Submicron Beams with Galvanic Etch Stop for Si in TMAH [PDF]

open access: yesSensors, 2009
A novel method has been developed to fabricate submicron beams with galvanic etch stop for Si in TMAH. The different Au:Si area ratios before and after the release of the beams are used to trigger the galvanic etch stop to fabricate submicron single ...
Yuelin Wang   +5 more
doaj   +3 more sources

Highly Sensitive Dissolved Oxygen Sensor with High Stability in Seawater Based on Silica-Encapsulated Platinum(II) Porphyrin [PDF]

open access: yesSensors
This study utilized tetramethylammonium hydroxide (TMAH) as a substitute for traditional catalysts and successfully incorporated platinum octaethylporphyrin (PtOEP) into SiO2 nanoparticles (PtOEP@SiO2) via the Stöber method.
Hang Lv   +3 more
doaj   +2 more sources

Effect of Oxidizing Agent on the Synthesis of ZnO Nanoparticles for Inverted Phosphorescent Organic Light-Emitting Devices without Multiple Interlayers [PDF]

open access: yesNanomaterials
Inverted organic light-emitting devices (OLEDs) have been aggressively developed because of their superiorities such as their high stability, low driving voltage, and low drop of brightness in display applications.
Se-Jin Lim   +4 more
doaj   +2 more sources

Assessment of an MnCe-GAC Treatment Process for Tetramethylammonium-Contaminated Wastewater from Optoelectronic Industries

open access: yesApplied Sciences, 2019
Nitrogen-containing wastewater is an important issue in optoelectronic and semiconductor industries. Wastewater containing nitrogen compounds such as ammonium, monoethanolamine (MEA), and tetramethylammonium hydroxide (TMAH) must be properly treated due ...
Da Tian Chang   +3 more
doaj   +1 more source

Revealing the Role of Sidewall Orientation in Wet Chemical Etching of GaN-Based Ultraviolet Light-Emitting Diodes

open access: yesNanomaterials, 2019
We demonstrated that the tetramethylammonium hydroxide (TMAH) solution possesses different etching abilities to the chip sidewalls with different orientations because the orientation of chip sidewall determines the exposed crystallographic plane of ...
Hui Wan   +5 more
doaj   +1 more source

Dual-Surface Modification of AlGaN/GaN HEMTs Using TMAH and Piranha Solutions for Enhancing Current and 1/f-Noise Characteristics

open access: yesIEEE Journal of the Electron Devices Society, 2018
We demonstrated dual-surface modification of GaN/AlGaN/GaN high-electron mobility transistors using tetramethylammonium hydroxide (TMAH) and piranha solutions prior to gate metallization.
M. Siva Pratap Reddy   +3 more
doaj   +1 more source

UASB处理液晶面板显影液废水中试研究

open access: yesGongye shui chuli, 2023
液晶面板显影液废水的主要污染成分是四甲基氢氧化铵(TMAH),该有机物具有强碱性和神经毒性。采用升流式厌氧污泥床(UASB)对实际显影液废水进行中试处理,考察了不同处理负荷下的TOC处理效果以及有机氮的转化效率。结果表明,在进水TMAH质量浓度为2 070~8 900 mg/L时,经UASB处理后,出水TMAH质量浓度低于0.5 mg/L,TOC去除率保持在96.4%以上;UASB不仅能有效去除显影液废水中的TMAH,还可大幅降低出水有机物浓度;UASB在高进水TMAH浓度工况下仍能长期稳定运行 ...
肖凡
doaj   +2 more sources

Application of Ozone Related Processes to Mineralize Tetramethyl Ammonium Hydroxide in Aqueous Solution

open access: yesInternational Journal of Photoenergy, 2013
Tetramethyl ammonium hydroxide (TMAH) is an anisotropic etchant used in the wet etching process of the semiconductor industry and is hard to degrade by biotreatments when it exists in wastewater.
Chyow-San Chiou   +4 more
doaj   +1 more source

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