Surface Structure of Pt-Modified Au Nanoparticles and Electrocatalytic Activity in Formic Acid Electro-Oxidation

2007 ◽  
Vol 111 (51) ◽  
pp. 19126-19133 ◽  
Author(s):  
In-Su Park ◽  
Kug-Seung Lee ◽  
Jong-Ho Choi ◽  
Hee-Young Park ◽  
Yung-Eun Sung
Keyword(s):  
Formic Acid ◽  
Surface Structure ◽  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Electro Oxidation

Electrocatalytic activity of carbon-supported Pt–Au nanoparticles for methanol electro-oxidation

2007 ◽  
Vol 52 (18) ◽  
pp. 5599-5605 ◽  
Author(s):  
In-Su Park ◽  
Kug-Seung Lee ◽  
Dae-Sik Jung ◽  
Hee-Young Park ◽  
Yung-Eun Sung
Keyword(s):  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Electro Oxidation

Electrocatalytic properties of Pd clusters on Au nanoparticles in formic acid electro-oxidation

2010 ◽  
Vol 55 (14) ◽  
pp. 4339-4345 ◽  
Author(s):  
In-Su Park ◽  
Kug-Seung Lee ◽  
Sung Jong Yoo ◽  
Yong-Hun Cho ◽  
Yung-Eun Sung
Keyword(s):  
Formic Acid ◽  
Au Nanoparticles ◽  
Electrocatalytic Properties ◽  
Electro Oxidation ◽  
Pd Clusters

Three dimensional palladium nanoflowers with enhanced electrocatalytic activity towards the anodic oxidation of formic acid

2015 ◽  
Vol 3 (3) ◽  
pp. 973-977 ◽  
Author(s):  
Bingqing Zhang ◽  
Hongliang Peng ◽  
Lijun Yang ◽  
Hualing Li ◽  
Haoxiong Nan ◽  
...  
Keyword(s):  
Formic Acid ◽  
Anodic Oxidation ◽  
Electrocatalytic Activity ◽  
Three Dimensional ◽  
Pd Nanoparticles ◽  
Enhanced Activity ◽  
Electro Oxidation

Pd nanoflowers (Pd-NF) composed of ultrathin Pd nanosheets show significantly enhanced activity towards the electro-oxidation of formic acid compared to ordinary Pd nanoparticles.

scholarly journals Microwave-Assisted Synthesis of Pt-Au Nanoparticles with Enhanced Electrocatalytic Activity for the Oxidation of Formic Acid

2017 ◽  
Vol 224 ◽  
pp. 56-63 ◽  
Author(s):  
Gema Cabello ◽  
Rogério A. Davoglio ◽  
Fabian W. Hartl ◽  
Jose F. Marco ◽  
Ernesto C. Pereira ◽  
...  
Keyword(s):  
Formic Acid ◽  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

scholarly journals Fabrication of CuOx-Pd Nanocatalyst Supported on a Glassy Carbon Electrode for Enhanced Formic Acid Electro-Oxidation

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Islam M. Al-Akraa ◽  
Ahmad M. Mohammad ◽  
Mohamed S. El-Deab ◽  
Bahgat E. El-Anadouli
Keyword(s):  
Formic Acid ◽  
Glassy Carbon ◽  
Electrocatalytic Activity ◽  
Active Material ◽  
Direct Oxidation ◽  
X Ray ◽  
Onset Potential ◽  
Composition And Structure ◽  
Electro Oxidation ◽  
Binary Catalyst

Formic acid (FA) electro-oxidation (FAO) was investigated at a binary catalyst composed of palladium nanoparticles (PdNPs) and copper oxide nanowires (CuOxNWs) and assembled onto a glassy carbon (GC) electrode. The deposition sequence of PdNPs and CuOxNWs was properly adjusted in such a way that could improve the electrocatalytic activity and stability of the electrode toward FAO. Several techniques including cyclic voltammetry, chronoamperometry, field-emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction were all combined to report the catalyst’s activity and to evaluate its morphology, composition, and structure. The highest catalytic activity and stability were obtained at the CuOx/Pd/GC electrode (with PdNPs directly deposited onto the GC electrode followed by CuOxNWs with a surface coverage, Г, of ca. 49%). Such enhancement was inferred from the increase in the peak current of direct FAO (by ca. 1.5 fold) which associated a favorable negative shift in its onset potential (by ca. 30 mV). The enhanced electrocatalytic activity and stability (decreasing the loss of active material by ca. 1.5-fold) of the CuOx/Pd/GC electrode was believed originating both from facilitating the direct oxidation (decreasing the time needed to oxidize a complete monolayer of FA, increasing turnover frequency, by ca. 2.5-fold) and minimizing the poisoning impact (by ca. 71.5%) at the electrode surface during FAO.

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