Anchoring nanosized Pd on three-dimensional boron- and nitrogen-codoped graphene aerogels as a highly active multifunctional electrocatalyst for formic acid and methanol oxidation reactions

2020 ◽  
Vol 7 (3) ◽  
pp. 700-708 ◽  
Author(s):  
Ying Yang ◽  
Huajie Huang ◽  
Binfeng Shen ◽  
Ling Jin ◽  
Quanguo Jiang ◽  
...  
Keyword(s):  
Formic Acid ◽  
Methanol Oxidation ◽  
Three Dimensional ◽  
Oxidation Reactions ◽  
Graphene Aerogels ◽  
Highly Active

A facile and scalable strategy is developed for the preparation of nanosized Pd crystals anchored on 3D B- and N-codoped graphene aerogels, which show multifunctional electrocatalytic ability.

scholarly journals New Insights into the Electrocatalytic Mechanism of Methanol Oxidation on Amorphous Ni-B-Co Nanoparticles in Alkaline Media

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 749 ◽  
Author(s):  
Wu ◽  
Zhang ◽  
Zhang ◽  
Duan ◽  
Li ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Amorphous Materials ◽  
Reaction Order ◽  
Chemical Reduction ◽  
Three Dimensional ◽  
Kinetic Studies ◽  
Alkaline Media ◽  
Methanol Oxidation Reaction ◽  
Oxidation Reactions ◽  
Co Nanoparticles

Despite an increased interest in sustainable energy conversion systems, there have been limited studies investigating the electrocatalytic reaction mechanism of methanol oxidation on Ni-based amorphous materials in alkaline media. A thorough understanding of such mechanisms would aid in the development of amorphous catalytic materials for methanol oxidation reactions. In the present work, amorphous Ni-B and Ni-B-Co nanoparticles were prepared by a simple chemical reduction, and their electrocatalytic properties were investigated by cyclic voltammetry measurements. The diffusion coefficients (D0) for Ni-B, Ni-B-Co0.02, Ni-B-Co0.05, and Ni-B-Co0.1 nanoparticles were calculated to be 1.28 × 10−9, 2.35 × 10−9, 4.48 × 10−9 and 2.67 × 10−9 cm2 s−1, respectively. The reaction order of methanol in the studied transformation was approximately 0.5 for all studied catalysts, whereas the reaction order of the hydroxide ion was nearly 1. The activation energy (Ea) values of the reaction were also calculated for the Ni-B and Ni-B-Co nanoparticle systems. Based on our kinetic studies, a mechanism for the methanol oxidation reaction was proposed which involved formation of an electrocatalytic layer on the surface of amorphous Ni–B and Ni-B-Co nanoparticles. And methanol and hydroxide ions could diffuse freely through this three-dimensional porous conductive layer.

Facile Synthesis of Three-Dimensional PtPdNi Fused Nanoarchitecture as Highly Active and Durable Electrocatalyst for Methanol Oxidation

2017 ◽  
Vol 1 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Yanling Zhai ◽  
Zhijun Zhu ◽  
Xiaolin Lu ◽  
Zhiru Zhou ◽  
Jiahui Shao ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Three Dimensional ◽  
Facile Synthesis ◽  
Highly Active

Highly active Au–Pd nanoparticles supported on three-dimensional graphene–carbon nanotube hybrid for selective oxidation of methanol to methyl formate

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 44835-44839 ◽  
Author(s):  
Ruiyi Wang ◽  
Zhiwei Wu ◽  
Guofu Wang ◽  
Zhangfeng Qin ◽  
Chengmeng Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
High Activity ◽  
Selective Oxidation ◽  
Methanol Oxidation ◽  
Methyl Formate ◽  
Three Dimensional ◽  
Pd Nanoparticles ◽  
Oxidation Of Methanol ◽  
Highly Active

Carbon nanotubes inserted in graphene give the Au–Pd/Gr–CNT catalyst high activity in methanol oxidation to methyl formate.

Polymer-assisted formation of 3D Pd nanoassemblies: highly active catalysts for formic acid electrooxidation

2017 ◽  
Vol 1 (3) ◽  
pp. 450-457 ◽  
Author(s):  
Tan Huang ◽  
Seung Ki Moon ◽  
Jong-Min Lee
Keyword(s):  
Formic Acid ◽  
Three Dimensional ◽  
Cross Linking ◽  
Highly Active ◽  
Polyallylamine Hydrochloride ◽  
Scaffold Molecule ◽  
Formic Acid Electrooxidation

Three-dimensional (3D) Pd nanoassemblies were synthesized by a facile hydrothermal procedure, in which polyallylamine hydrochloride (PAH) was simultaneously used as a cross-linking and scaffold molecule in order to construct the 3D interconnected nanoassemblies.

Palladium Nanoparticles Supported on Nitrogen and Sulfur Dual-Doped Graphene as Highly Active Electrocatalysts for Formic Acid and Methanol Oxidation

2016 ◽  
Vol 8 (17) ◽  
pp. 10858-10865 ◽  
Author(s):  
Xin Zhang ◽  
Jixin Zhu ◽  
Chandra Sekhar Tiwary ◽  
Zhongyuan Ma ◽  
Huajie Huang ◽  
...  
Keyword(s):  
Formic Acid ◽  
Methanol Oxidation ◽  
Palladium Nanoparticles ◽  
Highly Active ◽  
Doped Graphene
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