Dispersion-controlled PtCu clusters synthesized with citric acid using galvanic displacement with high electrocatalytic activity toward methanol oxidation

RSC Advances ◽  
2014 ◽  
Vol 4 (62) ◽  
pp. 32997-33000 ◽  
Author(s):  
Qing Lv ◽  
Jinfa Chang ◽  
Wei Xing ◽  
Changpeng Liu
Keyword(s):  
Citric Acid ◽  
Methanol Oxidation ◽  
Significant Role ◽  
Electrocatalytic Activity ◽  
Methanol Electrooxidation ◽  
Galvanic Displacement ◽  
Dispersion Agent

Dispersion-controlled carbon supported PtCu clusters were firstly synthesized using galvanic displacement of Cu/C, in which citric acid worked as the dispersion agent and its concentration was adjusted to form the as-synthesized clusters. It was found that dispersion played a significant role in tuning the activity for methanol electrooxidation.

Facile synthesis of Pd-decorated Pt/Ru networks with highly improved activity for methanol electrooxidation in alkaline media

2017 ◽  
Vol 41 (8) ◽  
pp. 3048-3054 ◽  
Author(s):  
Hui Xu ◽  
Ke Zhang ◽  
Bo Yan ◽  
Jiatai Zhong ◽  
Shumin Li ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Methanol Electrooxidation ◽  
Alkaline Media ◽  
Partial Replacement ◽  
Facile Synthesis

Electrocatalytic activity toward methanol oxidation is greatly enhanced after partial replacement of Ru with Pd in Pt/Ru/Pd networks.

Monolayer of close-packed Pt nanocrystals on a reduced graphene oxide (RGO) nanosheet and its enhanced catalytic performance towards methanol electrooxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46017-46025 ◽  
Author(s):  
Lin-Nan Zhou ◽  
Xiao-Ting Zhang ◽  
Wen-Jin Shen ◽  
Shi-Gang Sun ◽  
Yong-Jun Li
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Catalytic Performance ◽  
Methanol Electrooxidation ◽  
Reduced Graphene ◽  
Mass Activity ◽  
Pt Nanocrystals

A close-packed monolayer composed of (111)-orientated Pt nanocrystals was fabricated on reduced graphene oxide, exhibiting excellent electrocatalytic activity and stability towards methanol oxidation, ~3 times better mass activity than the commercial Pt/C.

Largely boosted methanol electrooxidation using ionic liquid/PdCu aerogels via interface engineering

2020 ◽  
Vol 7 (9) ◽  
pp. 2407-2413 ◽  
Author(s):  
Hengjia Wang ◽  
Songlin Zhang ◽  
Weiwei Cai ◽  
Bo Z. Xu ◽  
Zhixiang Cai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Methanol Electrooxidation ◽  
Methanol Oxidation Reaction ◽  
Interface Engineering

PdCu aerogels with an ionic liquid by interface engineering demonstrated splendid electrocatalytic activity for the methanol oxidation reaction.

Electrochemical fabrication of Hydrangea macrophylla flower-like Pt hierarchical nanostructures and their properties for methanol electrooxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13538-13543 ◽  
Author(s):  
Xia Wang ◽  
Yue Sun ◽  
Jun Hu ◽  
Yong-Jun Li ◽  
Edward S. Yeung
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Strong Stability ◽  
Methanol Electrooxidation ◽  
Hierarchical Nanostructures ◽  
Hydrangea Macrophylla ◽  
Growth Method ◽  
One Step ◽  
Directed Growth ◽  
Electrochemical Fabrication

Hydrangea macrophylla flower-like Pt hierarchical nanostructures were fabricated by a one-step current-directed growth method and exhibited better electrocatalytic activity and extremely strong stability toward methanol oxidation.

scholarly journals Synthesis and Characterization of Electrodeposited C-PANI-Pd-Ni Composite Electrocatalyst for Methanol Oxidation

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
S. S. Mahapatra ◽  
S. Shekhar ◽  
B. K. Thakur ◽  
H. Priyadarshi
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Electrochemical Impedance ◽  
Synergistic Effects ◽  
Catalytic Performance ◽  
Charge Transfer Resistance ◽  
Pani Film ◽  
Composite Electrodes ◽  
Transfer Resistance ◽  
Onset Potential

Electropolymerization of aniline at the graphite electrodes was achieved by potentiodynamic method. Electrodeposition of Pd (C-PANI-Pd) and Ni (C-PANI-Ni) and codeposition of Pd-Ni (C-PANI-Pd-Ni) microparticles into the polyaniline (PANI) film coated graphite (C-PANI) were carried out under galvanostatic control. The morphology and composition of the composite electrodes were obtained using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) techniques. The electrochemical behavior and electrocatalytic activity of the electrode were characterized using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometric (CA) methods in acidic medium. The C-PANI-Pd-Ni electrode showed an improved catalytic performance towards methanol oxidation in terms of lower onset potential, higher anodic oxidation current, greater stability, lower activation energy, and lower charge transfer resistance. The enhanced electrocatalytic activity might be due to the greater permeability of C-PANI films for methanol molecules, better dispersion of Pd-Ni microparticles into the polymer matrixes, and the synergistic effects between the dispersed metal particles and their matrixes.

Hollow and porous palladium nanocrystals: synthesis and electrocatalytic application

2015 ◽  
Vol 3 (44) ◽  
pp. 21995-21999 ◽  
Author(s):  
Gengtao Fu ◽  
Mingxing Gong ◽  
Yawen Tang ◽  
Lin Xu ◽  
Dongmei Sun ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Soft Template ◽  
Template Method ◽  
Methanol Oxidation Reaction

Porous Pd nanobowls are synthesized via a facile bubble soft-template method, showing the outstanding electrocatalytic activity for methanol oxidation reaction.

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