نتایج جستجو برای: electro catalytic

تعداد نتایج: 99163  

Journal: :Applied Nanoscience 2022

Abstract The nanostructured cyclically refreshable liquid amalgam film silver-based electrode (R-AgLAFE) was applied to study of the Bi(III) process in presence 2-thiocytosine and selected ionic surfactants. application voltammetrictechniques (SWV, CV, DC), as well electrochemical impedance spectroscopy (EIS) allowed determination kinetic which turn, defined catalytic effect also their correlat...

Journal: :Acta chimica Slovenica 2013
Mohammad Hasanzadeh Nasrin Shadjou

Electro-catalytic oxidation of formaldehyde on copper electrode in 100 mM NaOH solution at different concentrations of formaldehyde was studied in the steady state polarization technique. The CV curve shows evidence for two processes occurring at the interface: one is associated with the formaldehyde electro-oxidation leading to formic acid formation on the surface and the other is assigned to ...

2017
Xiaoyu Liu Xie Quan

Pentadecafluorooctanoic acid (PFOA) is environmentally persistent, bioaccumulative, globally distributed and dangerous to human beings. Thus, the degradation of PFOA with effective method remains further exploration. Here, an Electro-Fenton (EF) system was studied for efficient PFOA degradation, and where a new composite material ferrous hierarchically porous carbon (FHPC) prepared by high temp...

2017
Nga Yu Hau Peixian Yang Chang Liu Jian Wang Po-Heng Lee Shien-Ping Feng

A promising alternative route for the synthesis of three-dimensional Au dendrites was developed by direct electrodeposition from a solution of HAuCl4 containing 3-aminopropyltriethoxysilane (APTS). Ultraviolet-visible spectroscopy, fourier transform infrared spectroscopy and isothermal titration calorimetry were used to study the interaction of APTS in electrolyte. The effect of APTS on the for...

Journal: :Physical chemistry chemical physics : PCCP 2014
Yi Shen Zhihui Zhang Kaijun Xiao Jingyu Xi

Downsizing the Pt particle to the atomic level in the electro-catalysts is highly desirable to enhance its utilization efficiency in fuel cells. In this study, Pt subnano/nanoclusters were stabilized by the pristine graphene nanosheets (GNSs) derived from chemical vapor deposition and the resulting Pt/GNS hybrids were examined as catalysts for electro-oxidation of alcohols (methanol, ethanol, e...

2017
Chunzhen Yang Alexis Grimaud Christian Jooss

Triggering the redox reaction of oxygens has become essential for the development of (electro) catalytic properties of transition metal oxides, especially for perovskite materials that have been envisaged for a variety of applications such as the oxygen evolution or reduction reactions (OER and ORR, respectively), CO or hydrocarbons oxidation, NO reduction and others. While the formation of lig...

Journal: :ChemElectroChem 2022

Nanoimpact electrochemistry (NIE) is a straightforward analytical technique to study at high throughput the reactivity of single nanoparticles (NPs) colliding with biased ultramicroelectrode (UME). As NIE can reveal both NP size and catalytic activity, this strategy be employed establish relationships between these two descriptors. Herein, it shown that electrode material crucial for visualizin...

Journal: :ChemNanoMat 2023

The cover image illustrates the effect of doping chemistry on catalytic activity carbon materials. Carbon materials can be modified with different dopants to tune their physicochemical properties for many applications, including hydrogen evolution reaction (HER), oxygen (OER), and reduction (ORR). For this reason, carbon-based are promising electro/photocatalysts. More information found in Revi...

Journal: :Nature Catalysis 2021

Propylene oxide is a crucial feedstock in the plastic industry. The direct epoxidation of propylene using O2 considered among most promising means producing oxide. Here we report an integrated photo-electro-heterogeneous catalytic system for with O2. Bismuth vanadate (or TiO2) photocatalyst and Co-based electrocatalyst produces H2O2. A titanium silicalite-1 heterogeneous catalyst subsequently e...

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