In situ self-assembled N-rich carbon on pristine graphene as a highly effective support and cocatalyst of short Pt nanoparticle chains for superior electrocatalytic activity toward methanol oxidation

Nanoscale ◽  
2021 ◽  
Author(s):  
Xiuling Fan ◽  
Ming Zhao ◽  
Tianhao Li ◽  
Lian Ying Zhang ◽  
Mao-xiang Jing ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Direct Methanol Fuel Cells ◽  
Methanol Oxidation Reaction ◽  
Pristine Graphene ◽  
Pt Nanoparticle ◽  
Direct Methanol ◽  
Methanol Fuel Cells ◽  
Nanoparticle Chains

Highly conductive cocatalysts with great promotion effect are critical for development of pristine graphene supported Pt-based catalysts for the methanol oxidation reaction (MOR) in direct methanol fuel cells (DMFCs), but...

Bimetallic alloy and semiconductor support synergistic interaction effects for superior electrochemical catalysis

Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4719-4728 ◽  
Author(s):  
Yunshan Zheng ◽  
Yan Zhai ◽  
Maomao Tu ◽  
Xinhua Huang ◽  
Mingcong Shu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Direct Methanol Fuel Cells ◽  
Methanol Oxidation Reaction ◽  
Electrochemical Catalysis ◽  
Anode Catalysts ◽  
Bimetallic Alloy ◽  
Direct Methanol ◽  
Methanol Fuel Cells

The design and fabrication of economically viable anode catalysts for the methanol oxidation reaction (MOR) have been challenging issues in direct methanol fuel cells (DMFCs) over the decades.

The effect of PtRuW ternary electrocatalysts on methanol oxidation reaction in direct methanol fuel cells

2010 ◽  
Vol 27 (3) ◽  
pp. 802-806 ◽  
Author(s):  
Dae Kyu Kang ◽  
Chang Soo Noh ◽  
Sang Tae Park ◽  
Jung Min Sohn ◽  
Seung Kon Kim ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Direct Methanol Fuel Cells ◽  
Methanol Oxidation Reaction ◽  
Direct Methanol ◽  
Methanol Fuel Cells

Pt–CoP/C as an alternative PtRu/C catalyst for direct methanol fuel cells

2016 ◽  
Vol 4 (47) ◽  
pp. 18607-18613 ◽  
Author(s):  
Jinfa Chang ◽  
Ligang Feng ◽  
Kun Jiang ◽  
Huaiguo Xue ◽  
Wen-Bin Cai ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Power Density ◽  
Methanol Oxidation ◽  
Direct Methanol Fuel Cells ◽  
Direct Methanol ◽  
Methanol Fuel Cells

A novel Pt–CoP/C electrocatalyst was developed for direct methanol fuel cells. This catalyst showed superior power density to commercial Pt/C and PtRu/C catalysts. In situ ATR-SEIRAS technology revealed that the presence of CoP in the Pt-based catalyst can promote the methanol oxidation to final CO2 products.

Synthesis of NiO/TiO2 sub-microrods as catalyst for methanol oxidation reaction

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040002
Author(s):  
Xiaoyu Yue ◽  
Yixuan Wang ◽  
Ting Zhang ◽  
Wei Gao
Keyword(s):  
Electron Microscopy ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Direct Methanol Fuel Cells ◽  
Methanol Oxidation Reaction ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Potential Applications ◽  
Direct Methanol ◽  
Limited Oxygen

[Formula: see text] sub-microrods have been synthesized via a simple two-step route. First, the precursors were prepared by a facile ethylene glycol-mediated method; then, [Formula: see text] sub-microrods were obtained by a limited-oxygen atmosphere deriving from the decomposition of urea at [Formula: see text]C for 3 h in air. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The obtained [Formula: see text] sub-microrods exhibit cubic NiO structure with high crystallinity and anatase [Formula: see text]. Both SEM and TEM show the typical sub-microrods with lengths of [Formula: see text] nm and diameters of [Formula: see text] nm. The uniform sub-microrods have great electrocatalytic performance for methanol oxidation reaction in alkaline solution. This material may have potential applications in direct methanol fuel cells.

scholarly journals Facile Aqueous–Phase Synthesis of Pd–FePt Core–Shell Nanoparticles for Methanol Oxidation Reaction

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 130
Author(s):  
Xiangyun Xiao ◽  
Euiyoung Jung ◽  
Sehyun Yu ◽  
Hyeonjin Kim ◽  
Hong-Kyu Kim ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Direct Methanol Fuel Cells ◽  
Methanol Oxidation Reaction ◽  
Core Shell ◽  
Fept Nanoparticles ◽  
Shell Nanoparticles ◽  
Direct Methanol ◽  
Growth Method ◽  
Core Shell Nanoparticles

Multi-metallic Pd@FePt core–shell nanoparticles were synthesized using a direct seed-mediated growth method, consisting of facile and mild procedures, to increase yield. The Fe/Pt ratio in the shell was easily controlled by adjusting the amount of Fe and Pt precursors. Furthermore, compared with commercial Pt/C catalysts, Pd@FePt nanoparticles exhibited excellent activity and stability toward the methanol oxidation reaction (MOR), making them efficient in direct methanol fuel cells (DMFC).

Tungsten Carbide Nanofiber Prepared by Electrospinning for Methanol Oxidation Reaction

2013 ◽  
Vol 596 ◽  
pp. 55-59
Author(s):  
Takayuki Ishikawa ◽  
Mohammad Ali Abdelkareem ◽  
Takuya Tsujiguchi ◽  
Nobuyoshi Nakagawa
Keyword(s):  
Tungsten Carbide ◽  
Tungsten Oxide ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Direct Methanol Fuel Cells ◽  
Electrospun Nanofibers ◽  
Methanol Oxidation Reaction ◽  
Anode Catalyst ◽  
Electrospinning Technique ◽  
Direct Methanol

Tungsten carbide nanofibers for the anode catalyst of direct methanol fuel cells (DMFCs) were prepared from the precursor nanofibers with the diameter around 250 nm using an electrospinning technique. The electrospun nanofibers from the mixture of ammonium metatungstate and polyvinylpyrrolidone were dried and calcined in air at 700 °C to form tungsten oxide nanofibers, and reduced in 20 vol.% CH4/H2 atmosphere at 700 °C for 2 h. Surface morphology and crystalline structure of the prepared nanofibers were investigated using FE-SEM and XRD. The methanol oxidation reaction (MOR) activity of the prepared samples was evaluated by cyclic voltammetry (CV). The FE-SEM and XRD analyses showed that beaded nanofibers of tungsten carbide were successfully obtained. The WC nanofiber electrocatalyst exhibited a MOR activity suggesting it can be a candidate of the catalyst for DMFC. The presence of impurities, carbon and tungsten oxide, which may affect the activity, were detected at the surface.

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