Dispersing Pt and Pd atoms on Au nanoparticles deposited on n-GaN substrates for formic acid oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92757-92761 ◽  
Author(s):  
S.-J. Qin ◽  
Y. Zhao ◽  
F. Peng ◽  
X.-Q. Chen ◽  
G.-B. Pan

Au nanoparticles, with dispersed Pt and Pd atoms on them, supported on n-GaN substrates were prepared. The catalysts showed an enhanced performance for formic acid oxidation, and the mass activity reached 3.5 mA μgPtPd−1.

Langmuir ◽  
2010 ◽  
Vol 26 (6) ◽  
pp. 4497-4505 ◽  
Author(s):  
Sechul Kim ◽  
Changhoon Jung ◽  
Jandee Kim ◽  
Choong Kyun Rhee ◽  
Sung-Min Choi ◽  
...  

2012 ◽  
Vol 197 ◽  
pp. 72-79 ◽  
Author(s):  
M.D. Obradović ◽  
J.R. Rogan ◽  
B.M. Babić ◽  
A.V. Tripković ◽  
A.R.S. Gautam ◽  
...  

In this report, we investigated an electrochemical oxidation of formic acid using electrodeposited platinum (Pt) nanostructures on graphene oxide (GO) coated glassy carbon (GC) electrode. The modified electrode is well characterized with the aid of cyclic voltammetry (CV), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman analyses. A crystalline flower-like Pt nanostructures were found on GO modified electrode. The GO-Pt modified electrode displayed improved catalytic current signal in formic acid oxidation than the bare GC and Pt nanastrutures modified electrodes. The loading of GO amount dependent catalytic performance was studied to optimize the GO amount for the efficient electrocatalytic activity. The mass activity of the GO-Pt modified electrode is 2.2 times higher than the Pt modified electrode in formic acid electrooxidation. The GO-Pt nanostructures show good stability in amperometric i-t curve and consequently, show the higher turnover number than the only Pt modified electrode.


2018 ◽  
Vol 6 (35) ◽  
pp. 17164-17170 ◽  
Author(s):  
Fumin Li ◽  
Yu Ding ◽  
Xue Xiao ◽  
Shibin Yin ◽  
Mancheng Hu ◽  
...  

Trimetallic AuPtRh nanowires with advanced Au/Pt/Rh interface exhibit excellent mass activity (8.05 A mgPt−1), specific activity (14.3 mA cm−2), and catalytic stability for the formic acid oxidation reaction.


2019 ◽  
Vol 6 (3) ◽  
pp. 104-107
Author(s):  
Marina Vladimirovna Lebedeva ◽  
Alexey Petrovich Antropov ◽  
Alexander Victorovich Ragutkin ◽  
Nicolay Andreevich Yashtulov

In paper electrode materials with palladium nanoparticles on polymer matrix substrates for energy sources have been formed. Nanocomposites were investigated by atomic force and scanning electron microscopy. The catalytic activity of formed electrodes in the formic acid oxidation reaction was evaluated by voltammetry method.


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