نتایج جستجو برای: alcohols electrooxidation

تعداد نتایج: 12381  

2015
M. Sevilla C. Sanchís T. Valdés-Solís E. Morallón A. B. Fuertes

Highly graphitic carbon nanocoils (GCNC) were synthesized through the catalytic graphitization of carbon microspheres obtained by the hydrothermal carbonization of different saccharides (sucrose, glucose and starch) and were used as a support for Pt nanoparticles. The Pt nanoparticles were deposited by means of a polymer mediatedpolyol method. The Pt catalysts were characterized both physically...

Journal: :Nanotechnology 2009
Kan Kan Tingliang Xia Li Li Hongmei Bi Honggang Fu Keying Shi

Single-walled carbon nanotubes (SWCNTs) have been amidated by hydrothermal treatment with different aliphatic amines. The amido groups modified on the surface of the SWCNTs were characterized by Fourier transform infrared spectroscopy. The electrooxidation of nitric oxide (NO) at the modified electrodes of amidated SWCNTs was investigated. The modified electrodes of amidated SWCNTs exhibited di...

2017
Jingyi Zhang Anni Feng Jie Bai Zhibing Tan Wenyao Shao Yang Yang Wenjing Hong Zongyuan Xiao

The synergetic effect of alloy and morphology of nanocatalysts play critical roles towards ethanol electrooxidation. In this work, we developed a novel electrocatalyst fabricated by one-pot synthesis of hierarchical flower-like palladium (Pd)-copper (Cu) alloy nanocatalysts supported on reduced graphene oxide (Pd-Cu(F)/RGO) for direct ethanol fuel cells. The structures of the catalysts were cha...

Journal: :Physical chemistry chemical physics : PCCP 2011
John B Henry Ranald J MacDonald Helen S Gibbad Hamish McNab Andrew R Mount

Indolizine has been synthesised on the small scale with enhanced yield using a novel Flash Vacuum Pyrolysis method. Electrooxidation of indolizine results in the formation of a redox-active film on the electrode surface. Excellent agreement is found between calculated and experimental indolizine oxidation potentials; a combination of fluorescence and electrochemical studies are consistent with ...

2012
Rajendra N Goyal Sham M Sondhi Anand M Lahoti Adil A Abdulla

Horseradish peroxidase (type VIII) catalyzed and electrochemical oxidations of 2-thiouracil have been studied in phosphate buffer of pH 7.20 (JL==l.O M) at an ambient temperature of 25±2°C. The peroxidase catalyzed oxidation has been initiated by using hydrogen peroxide and electrooxidation carried out at pyrolytic graphite electrode. The UV-absorbing intermediates generated in both the oxidati...

Journal: :Advanced Functional Materials 2023

Iron-based (pre)catalysts have attracted enormous attention for various electrooxidation reactions due to the low cost, high abundance, and multiple accessible redox states of iron. Herein, a well-defined helical iron borophosphate (LiFeBPO) is developed as an electro(pre)catalyst oxygen evolution reaction (OER) selective alcohol oxidation. When deposited on nickel foam (NF), LiFeBPO exhibits e...

Journal: :physical chemistry research 2016
forough kalantari fotooh maryam baharizadeh

oniom calculation is carried out to estimate the acidity of five aliphatic alcohols before and after adsorbing on the tip of (8,0) single-walled carbon nanotube. the oniom method is performed using a combination of density functional theory and am1 semiemperical method for alcohols and their corresponding conjugated bases. deprotonation gibbs free energies of alcohols are calculated and compare...

Journal: :Chemical communications 2010
De-Jun Chen Zhi-You Zhou Qiang Wang Dong-Mei Xiang Na Tian Shi-Gang Sun

A non-intermetallic PtPb/C catalyst of hollow structure is synthesized through a simple reduction method, and exhibits an activity as high as 3.6 times that of commercial Pd black and a much higher stability for electrooxidation of formic acid.

Journal: :Chemical communications 2012
Guangxu Chen Yueming Tan Binghui Wu Gang Fu Nanfeng Zheng

A new strategy for synthesis of Pt nanocubes on various supports by reduction of a Pt precursor under a CO atmosphere was described. The as-prepared Pt nanocubes supported on multi-walled carbon nanotubes exhibited high activity toward methanol electrooxidation.

Journal: :Chemical communications 2010
Young-Woo Lee A-Ra Ko Sang-Beom Han Hyun-Su Kim Do-Young Kim Si-Jin Kim Kyung-Won Park

We report cuboctahedral Pd nanoparticles on WC synthesized by the polyol process using ethylene glycol with NO(3)(-) and Fe(3+)/Fe(2+) ions. The cuboctahedral Pd/WC shows much improved electrocatalytic activity for methanol electrooxidation in alkaline solution.

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