Volatile Compounds Present in Carbon Blacks Produced by Thermal Plasmas

Pristavita, Ramona; Roy, Ranjan; Moran, Blain; Meunier, Jean‐Luc; Berk, Dimitrios

doi:10.1007/s11090-013-9451-y

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…Until today, several carbon structures have been reported as having an effect on the reactions occurring on the fuel cells . Carbon blacks, because of their low cost and high availability are the immediate choice as support for low temperature fuel cells, although the presence of volatile contaminants, mostly amorphous quasi-graphitic structure and heterogeneous surface lead to dissimilar results and poor stability. Several modifications to black carbons have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Influence of sp³–sp² Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

Campos-Roldán

Ramos-Sánchez

González-Huerta³

et al. 2016

ACS Appl. Mater. Interfaces

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In this work, platinum nanoparticles were impregnated by two different techniques, namely the carbonyl chemical route and photodeposition, onto systematically surface-modified multiwalled carbon nanotubes. The different interactions between platinum nanoparticles with sp(2)-sp(3) carbon nanodomains were investigated. The oxidation of an adsorbed monolayer of carbon monoxide, used to probe electronic catalytic modification, suggests a selective nucleation of platinum nanoparticles onto sp(2) carbon nanodomains when photodeposition synthesis is carried out. XPS attests the catalytic center electronic modification obtained by photodeposition. DFT calculations were used to determine the interaction energy of a Pt cluster with sp(2) and sp(3) carbon surfaces as well as with oxidized ones. The interaction energy and electronic structure of the platinum cluster presents dramatic changes as a function of the support surface chemistry, which also modifies its catalytic properties evaluated by the interaction with CO. The interaction energy was calculated to be 8-fold higher on sp(3) and oxidized surfaces in comparison to sp(2) domains. Accelerated Stability Test (AST) was applied only on the electronic-modified materials to evaluate the active phase degradation and their activity toward oxygen reduction reaction (ORR). The stability of photodeposited materials is correlated with the surface chemical nature of supports indicating that platinum nanoparticles supported onto multiwalled carbon nanotubes with the highest sp(2) character show the higher stability and activity toward ORR.

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Section: Introductionmentioning

confidence: 99%

Influence of sp³–sp² Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

Campos-Roldán

Ramos-Sánchez

González-Huerta³

et al. 2016

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

Volatile Compounds Present in Carbon Blacks Produced by Thermal Plasmas

Cited by 1 publication

References 14 publications

Influence of sp³–sp² Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

Influence of sp³–sp² Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

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Volatile Compounds Present in Carbon Blacks Produced by Thermal Plasmas

Cited by 1 publication

References 14 publications

Influence of sp3–sp2 Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

Influence of sp3–sp2 Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

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Product

Resources

About

Influence of sp³–sp² Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

Influence of sp³–sp² Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction