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.

Porous platinum mesoflowers with enhanced activity for methanol oxidation reaction

2012 ◽  
Vol 191 ◽  
pp. 239-245 ◽  
Author(s):  
Lina Zhuang ◽  
Wenjin Wang ◽  
Feng Hong ◽  
Shengchun Yang ◽  
Hongjun You ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
Enhanced Activity

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.

scholarly journals The Use of C-MnO2 as Hybrid Precursor Support for a Pt/C-MnxO1+x Catalyst with Enhanced Activity for the Methanol Oxidation Reaction (MOR)

Catalysts ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1399-1416 ◽  
Author(s):  
Alessandro Videla ◽  
Luigi Osmieri ◽  
Reza Esfahani ◽  
Juqin Zeng ◽  
Carlotta Francia ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
Enhanced Activity ◽  
Hybrid Precursor

scholarly journals One-pot synthesis of CuPt nanodendrites with enhanced activity towards methanol oxidation reaction

RSC Advances ◽  
2018 ◽  
Vol 8 (17) ◽  
pp. 9293-9298 ◽  
Author(s):  
Hongcheng Peng ◽  
Weihong Qi ◽  
Haofei Wu ◽  
Jieting He ◽  
Yejun Li ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Electrocatalytic Performance ◽  
Enhanced Activity

CuPt nanodendrites have special electrocatalytic performance due to their unique morphology and structures.

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.

Enhanced activity of Pt nano-crystals supported on a novel TiO2@N-doped C nano-composite for methanol oxidation reaction

2012 ◽  
Vol 22 (37) ◽  
pp. 19718 ◽  
Author(s):  
Xiao Zhao ◽  
Jianbing Zhu ◽  
Liang Liang ◽  
Jianhui Liao ◽  
Changpeng Liu ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
Nano Composite ◽  
Enhanced Activity

Rational syntheses of core–shell Fe@(PtRu) nanoparticle electrocatalysts for the methanol oxidation reaction with complete suppression of CO-poisoning and highly enhanced activity

2015 ◽  
Vol 3 (33) ◽  
pp. 17154-17164 ◽  
Author(s):  
Md. Abdul Matin ◽  
Eunjik Lee ◽  
Hyunchul Kim ◽  
Won-Sub Yoon ◽  
Young-Uk Kwon
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
Core Shell ◽  
Complete Suppression ◽  
Co Poisoning ◽  
Electrocatalytic Properties ◽  
Enhanced Activity

We report the syntheses and characterization of ternary nanoparticles of Fex@(PtRu)(1−x)/2(x= 0.0–0.44) with Fe cores and PtRu alloy shells, which exhibit greatly improved electrocatalytic properties for methanol oxidation reaction.

Sign in / Sign up

Export Citation Format

Share Document