نتایج جستجو برای: methanol oxidation reaction

تعداد نتایج: 536581  

2017
Jun Xu Robert D. Armstrong Greg Shaw Nicholas F. Dummer Simon J. Freakley Stuart H. Taylor Graham J. Hutchings

The selective oxidation of methane to methanol is a key challenge in catalysis. Iron and copper modified ZSM-5 catalysts are shown to be effective for this reaction using H2O2 as the oxidant under continuous flow operation. Co-impregnation of ZSM-5 with Fe and Cu by chemical vapour impregnation yielded catalysts that showed high selectivity to methanol (> 92% selectivity, 0.5 % conversion), as ...

Journal: :Chemical communications 2010
Sung Jong Yoo Tae-Yeol Jeon Kug-Seung Lee Kyung-Won Park Yung-Eun Sung

Size-controlled Pt nanocatalysts embedded in TiO(2) were successfully synthesized by simultaneous dual-gun sputtering and were found to exhibit unique electronic properties depending on their size, which affected the potential of zero total charge, CO-bulk oxidation, and methanol oxidation reaction.

Journal: :ES energy & environment 2023

Poly(2,5 dimethoxyaniline) and Platinum (PDMA@ Pt) nanocomposite electrode was fabricated by the electrochemical method. PDMA@ Pt nano electrocatalyst size is around 150-200 nm. having electrocatalytic activity towards methanol oxidation reaction.

2017
Xing-Yan Huang Feng Li Jiu-Long Xie Cornelis F. De Hoop Chung-Yun Hse Jin-Qiu Qi Hui Xiao

The acid-catalyzed liquefaction of rape straw in methanol using microwave energy was examined. Conversion yield and energy consumption were evaluated to profile the microwave-assisted liquefaction process. Chemical components of the bio-oils from various liquefaction conditions were identified. A higher reaction temperature was found to be beneficial to obtain higher energy consumption efficien...

2014
Cheng-Di Dong Chiu-Wen Chen Chih-Feng Chen Chang-Mao Hung

In this report, we describe the preparation and electrochemical characterization of a Pt electrocatalyst, which was synthesized from hexachloroplatinic acid, using the incipient wetness impregnation method. This carbon mesoporous materials (Pt-CMMs) electrocatalyst was used for catalyzing the oxidation of methanol and its oxygen-reduction reaction. The electrocatalytic oxidation of methanol was...

2015
Namratha Pai Kotebagilu Vanitha Reddy Palvai Asna Urooj

Free radical-mediated oxidation is often linked to various degenerative diseases. Biological substrates with lipids as major components are susceptible to oxygen-derived lipid peroxidation due to their composition. Lipid peroxide products act as biomarkers in evaluating the antioxidant potential of various plants and functional foods. The study focused on evaluation of the antioxidant potential...

Journal: :Chemical communications 2006
Jihong Cheng Zaiwei Li Mark Haught Yongchun Tang

Ternary systems of inorganic Pt salts and oxides, ionic liquids and concentrated sulfuric acid are effective at catalyzing the direct, selective oxidation of methane to methanol and appear to be more water tolerant than the Catalytica reaction.

Journal: :Physical chemistry chemical physics : PCCP 2013
Ampornphan Siriviriyanun Toyoko Imae

Electrochemical sensors consisting of electrodes loaded with carbon nanotubes and Pt nanoparticles (PtNPs) protected by dendrimers have been developed using a facile method to fabricate them on two types of disposable electrochemical printed chips with a screen-printed circular gold or a screen-printed circular glassy carbon working electrode. The electrochemical performance of these sensors in...

Journal: :iranian chemical communication 0
banafsheh norouzi islamic azad university of qaemshahr

a sodium dodecyl sulfate modified carbon paste electrode (sds/cpe) was developed in this work based on the surface modification method. the modified electrode was prepared by immersing sds/cpe in a nickel nitrate solution. this electrode showed a strong accumulation ability toward nickel ions. then modified electrode was conditioned by potential recycling in a potential range of 0.2–0.8 v (vs. ...

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