Silicotungstic acid stabilized Pt–Ru nanoparticles supported on carbon nanofibers electrodes for methanol oxidation

2009 ◽  
Vol 34 (7) ◽  
pp. 2874-2879 ◽  
Author(s):  
T. Maiyalagan
Keyword(s):  
Carbon Nanofibers ◽  
Methanol Oxidation ◽  
Silicotungstic Acid ◽  
Ru Nanoparticles

Transient, in situ synthesis of ultrafine ruthenium nanoparticles for a high-rate Li–CO2 battery

2019 ◽  
Vol 12 (3) ◽  
pp. 1100-1107 ◽  
Author(s):  
Yun Qiao ◽  
Shaomao Xu ◽  
Yang Liu ◽  
Jiaqi Dai ◽  
Hua Xie ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Porous Structure ◽  
Carbon Nanofibers ◽  
In Situ Synthesis ◽  
High Rate ◽  
Ruthenium Nanoparticles ◽  
High Performing ◽  
Activated Carbon Nanofibers ◽  
Ru Nanoparticles

Ultrafine Ru nanoparticles anchored on freestanding activated carbon nanofibers with porous structure are synthesized as a high performing cathode for Li–CO2 batteries via a transient, in situ thermal shock method.

An Integrated Sonication Technique for Electrodeposition of Platinum and Ruthenium on Carbon Nanotubes for Methanol Oxidation

2012 ◽  
Vol 9 (4) ◽  
Author(s):  
Tsung-Kuang Yeh ◽  
Yu-Ming Chang ◽  
Chuen-Horng Tsai ◽  
Ming-Chi Tsai ◽  
Mei-Ya Wang
Keyword(s):  
Carbon Nanotubes ◽  
Sulfuric Acid ◽  
Methanol Oxidation ◽  
Cyclic Voltammogram ◽  
Electrochemical Characteristics ◽  
H2so4 Solution ◽  
Peak Current Density ◽  
Surface Distribution ◽  
Ru Nanoparticles ◽  
Sonication Technique

An electrodeposition technique that could significantly improve the deposition of platinum-ruthenium (Pt-Ru) nanoparticles onto carbon nanotubes (CNTs) directly grown on carbon cloths was adopted in this study. Integrated sonication (IS) was activated during the electrodeposition process conducted in a sulfuric acid (H2SO4) solution containing Pt and Ru precursor chemicals of hexachloroplatinic acid and ruthenium trichloride, respectively, and ethylene glycol (EG) as a dispersing agent. In comparison with our earlier work, this new technique would further reduce the size of Pt-Ru particles from 4-6 nm to 2-3 nm and lead to a more even and higher surface distribution of these nanoparticles on the CNTs. In addition, the loadings of Pt and Ru on the CNTs were both markedly increased. Electrochemical characteristics of methanol oxidation on specimens bearing these catalysts (Pt-Ru/CNTs) were investigated via cyclic voltammetry analysis in mixed 1 M methanol and 0.5 M sulfuric acid solutions. It was found that the peak current density of methanol oxidation obtained from the cyclic voltammogram on the new Pt-Ru/CNTs specimen was nearly three times of that on the specimen prepared with EG in the absence of IS. The outcome signified better catalyst morphology and distribution and a significantly improved methanol oxidation efficiency of the new specimen prepared in the mixed EG and H2SO4 solution by electrodeposition in the presence of IS.

Carbon nanofibers doped by Ni x Co 1−x alloy nanoparticles as effective and stable non precious electrocatalyst for methanol oxidation in alkaline media

2014 ◽  
Vol 394 ◽  
pp. 177-187 ◽  
Author(s):  
Nasser A.M. Barakat ◽  
Moaaed Motlak ◽  
Byoung-Suhk Kim ◽  
Ahmed G. El-Deen ◽  
Salem S. Al-Deyab ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Methanol Oxidation ◽  
Alkaline Media ◽  
Alloy Nanoparticles

Methanol oxidation on carbon-supported PtSn electrodes in silicotungstic acid

1994 ◽  
Vol 39 (5) ◽  
pp. 691-700 ◽  
Author(s):  
A.S. Aricò ◽  
H. Kim ◽  
A.K. Shukla ◽  
M.K. Ravikumar ◽  
V. Antonucci ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Silicotungstic Acid

Novel Pt–Ru nanoparticles formed by vapour deposition as efficient electrocatalyst for methanol oxidation

2005 ◽  
Vol 50 (16-17) ◽  
pp. 3312-3319 ◽  
Author(s):  
Pasupathi Sivakumar ◽  
Randa Ishak ◽  
Vincenzo Tricoli
Keyword(s):  
Methanol Oxidation ◽  
Vapour Deposition ◽  
Ru Nanoparticles

Support-Induced Oxidation State of Catalytic Ru Nanoparticles on Carbon Nanofibers that were Doped with Heteroatoms (O, N) for the Decomposition of NH3

ChemCatChem ◽  
2013 ◽  
Vol 5 (12) ◽  
pp. 3829-3834 ◽  
Author(s):  
Yanila Marco ◽  
Laura Roldán ◽  
Sabino Armenise ◽  
Enrique García-Bordejé
Keyword(s):  
Carbon Nanofibers ◽  
Oxidation State ◽  
Ru Nanoparticles ◽  
Decomposition Of Nh3
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