Low-temperature catalytic oxidation of multi-walled carbon nanotubes

Anne-Riikka Leino; Melinda Mohl; Jarmo Kukkola; Päivi Mäki-Arvela; Tommi Kokkonen; Andrey Shchukarev; Krisztian Kordas

doi:10.1016/j.carbon.2013.01.040

Low-temperature catalytic oxidation of multi-walled carbon nanotubes

Anne-Riikka Leino
, Melinda Mohl
, Jarmo Kukkola
, Päivi Mäki-Arvela
, Tommi Kokkonen
, Andrey Shchukarev
, Krisztian Kordas^*

^*Tämän työn vastaava kirjoittaja

Åbo Akademi

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

24 Sitaatiot (Scopus)

Abstrakti

When in a pure form, carbon nanotubes are known to be stable in air up to ∼800 K making them attractive for a large variety of applications. In this work, we report a significant decrease of ignition temperature (in some cases occurring at ∼500 K) and a reduction in the apparent activation energy for oxidation in air as a result of impregnation with nanoparticles (<2 nm) of metal (Pt, Pd, Ni and Co) acetylacetonates or by decoration with corresponding oxides. Surprisingly, defects introduced by partial oxidation of the carbon nanotubes do not in practice have any influence on the enhancement of further oxidation. Reduction temperatures of metal oxides with H₂ were close to those of other carbon supported catalyst materials. However, the carbon nanotubes showed a tendency for low temperature gasification in the presence of hydrogenation catalyst metals (Pt, Pd).

Alkuperäiskieli	Englanti
Sivut	99-107
Sivumäärä	9
Julkaisu	Carbon
Vuosikerta	57
DOI - pysyväislinkit	https://doi.org/10.1016/j.carbon.2013.01.040
Tila	Julkaistu - kesäk. 2013
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

Rahoitus

The authors would like to thank Prof. Arthur E. Hill (Univ. Salford) and Dr. Robert Vajtai (Rice Univ.) for their valuable comments on the manuscript. We thank Jarkko Puustinen (Univ. Oulu) and Peter Pusztai (Univ. Szeged) for assisting with XRD and TGA measurements, respectively. A.-R. Leino is grateful for the post-graduate position and for the personal grants received from Graduate School in Electronics, Telecommunications and Automation, Emil Aaltonen and Tauno Tönning foundations. The work was supported by projects Urakamu2 (Tekes), Rocaname (Academy of Finland), Thema-CNT (EU FP7) and Napep (EU FP7).

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10.1016/j.carbon.2013.01.040

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abstract = "When in a pure form, carbon nanotubes are known to be stable in air up to ∼800 K making them attractive for a large variety of applications. In this work, we report a significant decrease of ignition temperature (in some cases occurring at ∼500 K) and a reduction in the apparent activation energy for oxidation in air as a result of impregnation with nanoparticles (<2 nm) of metal (Pt, Pd, Ni and Co) acetylacetonates or by decoration with corresponding oxides. Surprisingly, defects introduced by partial oxidation of the carbon nanotubes do not in practice have any influence on the enhancement of further oxidation. Reduction temperatures of metal oxides with H2 were close to those of other carbon supported catalyst materials. However, the carbon nanotubes showed a tendency for low temperature gasification in the presence of hydrogenation catalyst metals (Pt, Pd).",

author = "Anne-Riikka Leino and Melinda Mohl and Jarmo Kukkola and P{\"a}ivi M{\"a}ki-Arvela and Tommi Kokkonen and Andrey Shchukarev and Krisztian Kordas",

note = "Funding Information: The authors would like to thank Prof. Arthur E. Hill (Univ. Salford) and Dr. Robert Vajtai (Rice Univ.) for their valuable comments on the manuscript. We thank Jarkko Puustinen (Univ. Oulu) and Peter Pusztai (Univ. Szeged) for assisting with XRD and TGA measurements, respectively. A.-R. Leino is grateful for the post-graduate position and for the personal grants received from Graduate School in Electronics, Telecommunications and Automation, Emil Aaltonen and Tauno T{\"o}nning foundations. The work was supported by projects Urakamu2 (Tekes), Rocaname (Academy of Finland), Thema-CNT (EU FP7) and Napep (EU FP7). Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

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doi = "10.1016/j.carbon.2013.01.040",

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AU - Leino, Anne-Riikka

AU - Mohl, Melinda

AU - Kukkola, Jarmo

AU - Mäki-Arvela, Päivi

AU - Kokkonen, Tommi

AU - Shchukarev, Andrey

AU - Kordas, Krisztian

N1 - Funding Information: The authors would like to thank Prof. Arthur E. Hill (Univ. Salford) and Dr. Robert Vajtai (Rice Univ.) for their valuable comments on the manuscript. We thank Jarkko Puustinen (Univ. Oulu) and Peter Pusztai (Univ. Szeged) for assisting with XRD and TGA measurements, respectively. A.-R. Leino is grateful for the post-graduate position and for the personal grants received from Graduate School in Electronics, Telecommunications and Automation, Emil Aaltonen and Tauno Tönning foundations. The work was supported by projects Urakamu2 (Tekes), Rocaname (Academy of Finland), Thema-CNT (EU FP7) and Napep (EU FP7). Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013/6

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N2 - When in a pure form, carbon nanotubes are known to be stable in air up to ∼800 K making them attractive for a large variety of applications. In this work, we report a significant decrease of ignition temperature (in some cases occurring at ∼500 K) and a reduction in the apparent activation energy for oxidation in air as a result of impregnation with nanoparticles (<2 nm) of metal (Pt, Pd, Ni and Co) acetylacetonates or by decoration with corresponding oxides. Surprisingly, defects introduced by partial oxidation of the carbon nanotubes do not in practice have any influence on the enhancement of further oxidation. Reduction temperatures of metal oxides with H2 were close to those of other carbon supported catalyst materials. However, the carbon nanotubes showed a tendency for low temperature gasification in the presence of hydrogenation catalyst metals (Pt, Pd).

AB - When in a pure form, carbon nanotubes are known to be stable in air up to ∼800 K making them attractive for a large variety of applications. In this work, we report a significant decrease of ignition temperature (in some cases occurring at ∼500 K) and a reduction in the apparent activation energy for oxidation in air as a result of impregnation with nanoparticles (<2 nm) of metal (Pt, Pd, Ni and Co) acetylacetonates or by decoration with corresponding oxides. Surprisingly, defects introduced by partial oxidation of the carbon nanotubes do not in practice have any influence on the enhancement of further oxidation. Reduction temperatures of metal oxides with H2 were close to those of other carbon supported catalyst materials. However, the carbon nanotubes showed a tendency for low temperature gasification in the presence of hydrogenation catalyst metals (Pt, Pd).

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M3 - Article

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VL - 57

SP - 99

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JO - Carbon

JF - Carbon

ER -

Low-temperature catalytic oxidation of multi-walled carbon nanotubes

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