Methanol oxidation on gold nanoparticles in alkaline media: Unusual electrocatalytic activity

2006 ◽  
Vol 52 (4) ◽  
pp. 1662-1669 ◽  
Author(s):  
Javier Hernández ◽  
José Solla-Gullón ◽  
Enrique Herrero ◽  
Antonio Aldaz ◽  
Juan M. Feliu
Keyword(s):  
Gold Nanoparticles ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Alkaline Media

Enhancement of the Electrocatalytic Activity of Gold Nanoparticles Towards Methanol Oxidation

2011 ◽  
Vol 2 (2) ◽  
pp. 106-113 ◽  
Author(s):  
Ying Chen ◽  
Achim Walter Hassel ◽  
Andreas Erbe
Keyword(s):  
Gold Nanoparticles ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity

scholarly journals Comparison of electrocatalytic activity for glucose electrooxidation of gold nanoparticles fabricated by different methods

Chemija ◽  
2019 ◽  
Vol 30 (1) ◽  
Author(s):  
Daina Upskuvienė ◽  
Aldona Balčiūnaitė ◽  
Jūratė Vaičiūnienė ◽  
Algirdas Selskis ◽  
Rimantas Vaitkus ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Carbon Support ◽  
Alkaline Media ◽  
Carbon Powder ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Glucose Electrooxidation

In this study, the gold nanoparticles (AuNPs) without carbon support were prepared using the well-known citrate reduction method. The carbon supported AuNPs nanocomposites were fabricated by two different approaches: chemical adsorption of AuNPs from the prepared citrate stabilized AuNP colloidal solution on the carbon powder surface and one-pot microwave-assisted synthesis. The nanocomposites were characterized using scanning electron microscopy (SEM) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The electrocatalytic activity of the prepared catalysts was evaluated for the electrooxidation of glucose in an alkaline media using cyclic voltammetry. The highest electrocatalytic activity was observed for the catalyst of carbon supported Au nanoparticles prepared by microwave-assisted synthesis, followed by the catalyst of carbon supported Au nanoparticles prepared by means of the adsorption method, whereas the pure Au nanoparticles without carbon support exhibited the lowest electrocatalytic properties for glucose electrooxidation.

Sawtooth-shaped nickel-based submicrowires and their electrocatalytic activity for methanol oxidation in alkaline media

2013 ◽  
Vol 38 (27) ◽  
pp. 11863-11869 ◽  
Author(s):  
Dongbo Yu ◽  
Xinyi Zhang ◽  
Kun Wang ◽  
Li He ◽  
Jianfeng Yao ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Alkaline Media

Facile synthesis of Pd-decorated Pt/Ru networks with highly improved activity for methanol electrooxidation in alkaline media

2017 ◽  
Vol 41 (8) ◽  
pp. 3048-3054 ◽  
Author(s):  
Hui Xu ◽  
Ke Zhang ◽  
Bo Yan ◽  
Jiatai Zhong ◽  
Shumin Li ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Methanol Electrooxidation ◽  
Alkaline Media ◽  
Partial Replacement ◽  
Facile Synthesis

Electrocatalytic activity toward methanol oxidation is greatly enhanced after partial replacement of Ru with Pd in Pt/Ru/Pd networks.

Mn-Mo-O Catalysts for Methanol Oxidation. I. Preparation and Characterization of the Catalysts

1992 ◽  
Vol 57 (12) ◽  
pp. 2529-2538 ◽  
Author(s):  
Krasimir Ivanov ◽  
Penka Litcheva ◽  
Dimitar Klissurski
Keyword(s):  
Methanol Oxidation ◽  
Solution Concentration ◽  
Alkaline Media ◽  
Acidic Media ◽  
Chemical Methods ◽  
X Ray ◽  
Ph Values ◽  
Precipitate Composition

Mn-Mo-O catalysts with a different Mo/Mn ratio have been prepared by precipitation. The precipitate composition as a function of solution concentration and pH was studied by X-ray, IR, thermal and chemical methods. Formation of manganese molybdates with MnMoO4.1.5H2O, Mn3Mo3O12.2.5H2O, and Mn3Mo4O15.4H2O composition has been supposed. It is concluded that pure MnMoO4 may be obtained in both acid and alkaline media, the pH values depending on the concentration of the initial solutions. The maximum Mo/Mn ratio in the precipitates is 1.33. The formation of pure Mn3Mo4O15.4H2O is possible in weakly acidic media. This process is favoured by increasing the concentration of initial solutions.

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