Low Density Three-Dimensional Metal Foams as Significant Electrocatalysts toward Methanol Oxidation Reaction

2018 ◽  
Vol 6 (2) ◽  
pp. 2062-2068 ◽  
Author(s):  
Divya Catherin Sesu ◽  
Indrajit Patil ◽  
Moorthi Lokanathan ◽  
Haridas Parse ◽  
Phiralang Marbaniang ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Three Dimensional ◽  
Metal Foams ◽  
Methanol Oxidation Reaction ◽  
Low Density

Directed self-assembly pathways of three-dimensional Pt/Pd nanocrystal superlattice electrocatalysts for enhanced methanol oxidation reaction

2018 ◽  
Vol 6 (26) ◽  
pp. 12759-12767 ◽  
Author(s):  
Guangran Xu ◽  
Rui Si ◽  
Jiayin Liu ◽  
Luyao Zhang ◽  
Xia Gong ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Self Assembly ◽  
Oxidation Reaction ◽  
Active Sites ◽  
Nitrogen Doping ◽  
Three Dimensional ◽  
Methanol Oxidation Reaction ◽  
Assembly Strategy ◽  
Nanocrystal Superlattices ◽  
Assembly Pathways

A new directed self-assembly strategy is developed to achieve 3D Pt/Pd nanocrystal superlattices with enhanced electrocatalytic performance for methanol oxidation reaction due to the enriched metallic Pt active sites by appropriate Pd alloying and surface nitrogen doping.

scholarly journals Surfactant-Free Synthesis of Three-Dimensional Perovskite Titania-Based Micron-Scale Motifs Used as Catalytic Supports for the Methanol Oxidation Reaction

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 909
Author(s):  
Nathaniel Hurley ◽  
Luyao Li ◽  
Christopher Koenigsmann ◽  
Stanislaus S. Wong
Keyword(s):  
Chemical Composition ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Specific Activity ◽  
Three Dimensional ◽  
Methanol Oxidation Reaction ◽  
Perovskite Materials ◽  
Synthesis Procedure ◽  
Catalytic Supports ◽  
A Site

We synthesized and subsequently rationalized the formation of a series of 3D hierarchical metal oxide spherical motifs. Specifically, we varied the chemical composition within a family of ATiO3 (wherein “A” = Ca, Sr, and Ba) perovskites, using a two-step, surfactant-free synthesis procedure to generate structures with average diameters of ~3 microns. In terms of demonstrating the practicality of these perovskite materials, we have explored their use as supports for the methanol oxidation reaction (MOR) as a function of their size, morphology, and chemical composition. The MOR activity of our target systems was found to increase with decreasing ionic radius of the “A” site cation, in order of Pt/CaTiO3 (CTO) > Pt/SrTiO3 (STO) > Pt/BaTiO3 (BTO). With respect to morphology, we observed an MOR enhancement of our 3D spherical motifs, as compared with either ultra-small or cubic control samples. Moreover, the Pt/CTO sample yielded not only improved mass and specific activity values but also a greater stability and durability, as compared with both commercial TiO2 nanoparticle standards and precursor TiO2 templates.

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