Broadening the sunlight response region with carbon dot sensitized TiO2 as a support for a Pt catalyst in the methanol oxidation reaction

2018 ◽  
Vol 8 (16) ◽  
pp. 4180-4192 ◽  
Author(s):  
Anindita Bora ◽  
Kiranjyoti Mohan ◽  
Simanta Doley ◽  
Prayashi Goswami ◽  
Swapan Kumar Dolui
Keyword(s):  
Visible Light ◽  
Methanol Oxidation ◽  
Carbon Dots ◽  
Oxidation Reaction ◽  
Pt Catalyst ◽  
Methanol Oxidation Reaction ◽  
Carbon Dot ◽  
Response Region ◽  
Supported Pt Catalyst

Carbon dots with upconversion properties harness unused visible light and act as sensitizers for a TiO2 supported Pt catalyst in MOR.

Ruthenium and ruthenium oxide nanofiber supports for enhanced activity of platinum electrocatalysts in the methanol oxidation reaction

2016 ◽  
Vol 18 (22) ◽  
pp. 14859-14866 ◽  
Author(s):  
Geon-Hyoung An ◽  
Eun-Hwan Lee ◽  
Hyo-Jin Ahn
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Ruthenium Oxide ◽  
Electrochemical Activity ◽  
Pt Catalyst ◽  
Catalyst Supports ◽  
Methanol Oxidation Reaction ◽  
Enhanced Activity

Ru and RuO2 nanofiber composites arranged into nanosized grains as Pt catalyst supports are synthesized by electrospinning and post-calcination, which show excellent electrochemical activity.

One-pot synthesis of core@shell PdAuPt nanodendrite@Pd nanosheets for boosted visible light-driven methanol electrooxidation

2021 ◽  
Author(s):  
Fei Gao ◽  
Yangping Zhang ◽  
Huaming You ◽  
Zhuolin Li ◽  
Bin Zou ◽  
...  
Keyword(s):  
Visible Light ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
Core Shell ◽  
One Pot ◽  
Simple Method ◽  
One Pot Synthesis ◽  
Visible Light Driven ◽  
Mass Activity

We developed a simple method to obtain the PdPtAu@Pd core@shell catalyst for methanol oxidation reaction. The PdPtAu@Pd exhibited superior photo-electrocatalytic behaviors, whose mass activity is 2.3 and 6.7 times higher than Pt/C and Pd/C.

Platinum–Copper Bimetallic Alloy Nanoflowers as Efficient Electrocatalyst for the Methanol Oxidation Reaction

2018 ◽  
Vol 18 (12) ◽  
pp. 8296-8301
Author(s):  
Ruimin Xing ◽  
Rui Li ◽  
Liangyu Tong ◽  
Bingyue Li ◽  
Deling Kong ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
High Performance ◽  
Catalyst Activity ◽  
Pt Catalyst ◽  
Methanol Oxidation Reaction ◽  
Ammonium Bromide ◽  
Experimental Conditions ◽  
One Pot ◽  
Bimetallic Alloy

Special morphological noble metal-based bimetallic alloy nanostructures became popular for methanol oxidation reaction in order to reduce the high cost of the Pt catalyst and improve the catalyst activity. Herein, we developed a facile one pot hydrothermal method for the synthesis of platinum–copper bimetallic nanoflowers (Pt–Cu NFs) in the presence of hexadecyl trimethyl ammonium bromide (CTAB). The morphology, structure and composition of Pt–Cu NFs were carefully characterized and the synthesized parameters were optimized systematically by adjusting different experimental conditions. Results showed that the CTAB usage and the NaI amount were critical to the controlled synthesis of Pt–Cu NFs. The Pt–Cu NFs were high-performance electrocatalysts for the methanol oxidation reaction (MOR) with superior activity and superior stability in alkaline solution, which were far better than pure Pt nanoparticle electrocatalysts.

Evolution of Pt Nanoclusters Morphology on PEMFC Electrode due to Methanol Oxidation Reaction Studied by Electron Microscopy and Synchrotron Grazing Incidence X-Ray Diffraction

2006 ◽  
Vol 51 ◽  
pp. 181-186
Author(s):  
Marco Alvisi ◽  
Giovanna Galtieri ◽  
L. Giorgi ◽  
Emanuele Serra ◽  
Tiziana Di Luccio ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Fuel Cells ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Catalyst Layer ◽  
Grazing Incidence ◽  
Pt Catalyst ◽  
Methanol Oxidation Reaction ◽  
X Ray Diffraction ◽  
X Ray

The proton exchange membrane fuel cells (PEMFC) have been developed mainly as a power source for vehicles, power generation and consumer electronics since they combine high energy conversion efficiency at relatively low temperatures without pollutants emission in the environment. An electrode for a PEMFC is a layered structure composed by a catalyst layer deposited on a porous carbon substrate. The substrate is usually covered by a diffusion layer that enhances the gas and water flow. Platinum nanoparticles supported by carbon microparticles are commonly employed as catalyst layer. In this work an extreme ultra-low loading of Pt catalyst (< 0.02 mg/cm2) has been deposited by magnetron sputtering on gas diffusion electrodes, with different carbon supports (Vulcan and SuperP), in order to enhance the activity of PEM fuel cells. The morphology (shape and grain size) and microstructure have been studied combining field emission scanning electron microscopy (FEG-SEM), grazing incidence synchrotron x-ray diffraction (GIXRD) and x-ray photoelectron spectroscopy (XPS). The results presented here concern the evolution of the cluster size and shape after the ageing, induced by cyclic voltammetry for methanol oxidation reaction.

One pot solvent assisted syntheses of Ag3SbS3 nanocrystals and exploring their phase dependent electrochemical behavior toward oxygen reduction reaction and visible light induced methanol oxidation reaction

2020 ◽  
Vol 49 (27) ◽  
pp. 9464-9479
Author(s):  
Jit Satra ◽  
Uday Kumar Ghorui ◽  
Papri Mondal ◽  
Gopala Ram Bhadu ◽  
Bibhutosh Adhikary
Keyword(s):  
Visible Light ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
Electrochemical Behavior ◽  
Oxidation Reaction ◽  
Reduction Reaction ◽  
Methanol Oxidation Reaction ◽  
One Pot

Solvent tailored syntheses of two different phases of Ag3SbS3 nanocrystals and the exploration of their distinct electrochemical responses toward ORR and MOR.

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