Functionalized Carbon Nanotube Matrix for Inducing Noncovalent Interactions Toward Enhanced Catalytic Performance of Metallic Electrode

2013 ◽  
Vol 1549 ◽  
pp. 135-140
Author(s):  
Le Q. Hoa ◽  
Hiroyuki Yoshikawa ◽  
Masato Saito ◽  
Eiichi Tamiya
Keyword(s):  
Carbon Nanotube ◽  
Noncovalent Interactions ◽  
Electrochemical Characterizations ◽  
Alcohol Oxidation ◽  
Catalytic Performance ◽  
Oxidation Reactions ◽  
Metallic Electrode ◽  
Environmental Friendliness ◽  
Direct Alcohol Fuel Cells ◽  
Functionalized Carbon Nanotube

ABSTRACTHerein, we investigated the noncovalent interactions derived from functionalized carbon nanotube matrices grafting metallic alloy PtRu nanoparticle-decorated Vulcan carbon (fMWCNTs-g-PtRu/C) toward the enhancement of alcohol oxidation reactions. The fMWCNTs noncovalently grafted PtRu/C was successfully synthesized and demonstrated significant enhancement of the electro-catalytic activity and stability toward alcohol oxidation reactions as revealed by electrochemical characterizations. The presented results indicate that the grafting matrix specifically enhances ethanol oxidation reaction kinetics much more than methanol and propanol oxidation reactions. Since the same loading of PtRu/C was used for all tests, the differentiation between these reactants revealed the different strength of noncovalent interactions between the functional matrix and corresponding reactants. This result reveals a new strategy for using fMWCNTs matrix as potential catalyst supports due to its facile fabrication and functionalization, cost effectiveness and environmental friendliness, factors in which all of them are necessary for the practical application of direct alcohol fuel cells in near future.

Enhancing catalytic performance of Pt-based electrodes with a noncovalent interaction-induced functionalized carbon nanotube-grafted matrix

2012 ◽  
Vol 22 (29) ◽  
pp. 14705 ◽  
Author(s):  
Le Quynh Hoa ◽  
Mun'delanji C. Vestergaard ◽  
Hiroyuki Yoshikawa ◽  
Masato Saito ◽  
Eiichi Tamiya
Keyword(s):  
Carbon Nanotube ◽  
Catalytic Performance ◽  
Noncovalent Interaction ◽  
Functionalized Carbon Nanotube

Significance of wall number on the carbon nanotube support-promoted electrocatalytic activity of Pt NPs towards methanol/formic acid oxidation reactions in direct alcohol fuel cells

2015 ◽  
Vol 3 (5) ◽  
pp. 1961-1971 ◽  
Author(s):  
Weiyong Yuan ◽  
Yi Cheng ◽  
Pei Kang Shen ◽  
Chang Ming Li ◽  
San Ping Jiang
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Formic Acid ◽  
Electrocatalytic Activity ◽  
Formic Acid Oxidation ◽  
Acid Oxidation ◽  
Oxidation Reactions ◽  
Direct Alcohol Fuel Cells ◽  
Alcohol Fuel

The inner walls of CNTs have a significant effect on the electrocatalytic activity of supported Pt NPs for MOR/FAOR in fuel cells.

Ruthenium complex immobilized on poly(4-vinylpyridine)-functionalized carbon-nanotube for selective aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5933-5940 ◽  
Author(s):  
Jinzhu Chen ◽  
Jiawei Zhong ◽  
Yuanyuan Guo ◽  
Limin Chen
Keyword(s):  
Carbon Nanotube ◽  
Ruthenium Complex ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Selective Aerobic Oxidation ◽  
Functionalized Carbon Nanotube ◽  
Excellent Catalytic Performance

Ruthenium complex, immobilized on poly(4-vinylpyridine)-functionalized carbon-nanotube, shows excellent catalytic performance towards selective aerobic oxidation of biomass-based 5-hydroxymethylfurfural to 2,5-diformylfuran.

scholarly journals Nickel Phosphide Catalysts as Efficient Systems for CO2 Upgrading via Dry Reforming of Methane

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 446
Author(s):  
Miriam González-Castaño ◽  
Estelle le Saché ◽  
Cameron Berry ◽  
Laura Pastor-Pérez ◽  
Harvey Arellano-García ◽  
...  
Keyword(s):  
Supported Catalysts ◽  
Lower Surface ◽  
Catalytic Performance ◽  
Dry Reforming Of Methane ◽  
Oxidation Reactions ◽  
Surface Areas ◽  
Ceo2 Sample ◽  
Conversion Rates ◽  
Ni Oxidation ◽  
Catalytic Behaviour

This work establishes the primordial role played by the support’s nature when aimed at the constitution of Ni2P active phases for supported catalysts. Thus, carbon dioxide reforming of methane was studied over three novel Ni2P catalysts supported on Al2O3, CeO2 and SiO2-Al2O3 oxides. The catalytic performance, shown by the catalysts’ series, decreased according to the sequence: Ni2P/Al2O3 > Ni2P/CeO2 > Ni2P/SiO2-Al2O3. The depleted CO2 conversion rates discerned for the Ni2P/SiO2-Al2O3 sample were associated to the high sintering rates, large amounts of coke deposits and lower fractions of Ni2P constituted in the catalyst surface. The strong deactivation issues found for the Ni2P/CeO2 catalyst, which also exhibited small amounts of Ni2P species, were majorly associated to Ni oxidation issues. Along with lower surface areas, oxidation reactions might also affect the catalytic behaviour exhibited by the Ni2P/CeO2 sample. With the highest conversion rate and optimal stabilities, the excellent performance depicted by the Ni2P/Al2O3 catalyst was mostly related to the noticeable larger fractions of Ni2P species established.

Alginate fouling reduction of functionalized carbon nanotube blended cellulose acetate membrane in forward osmosis

Chemosphere ◽  
2015 ◽  
Vol 136 ◽  
pp. 204-210 ◽  
Author(s):  
Hyeon-gyu Choi ◽  
Moon Son ◽  
SangHyeon Yoon ◽  
Evrim Celik ◽  
Seoktae Kang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cellulose Acetate ◽  
Forward Osmosis ◽  
Cellulose Acetate Membrane ◽  
Functionalized Carbon Nanotube ◽  
Fouling Reduction
Sign in / Sign up

Export Citation Format

Share Document