Nitrogen-doped bamboo-shaped carbon nanotube supported catalysts for heterogeneous hydrogenation. The effect of surface polarity

László Vanyorek, Emőke Sikora, Adrienn Kiss, Ádám Sike, Zsuzsanna G. Hutkai, Péter Pekker, Béla Viskolcz, Béla Fiser

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Nitrogen-doped bamboo-shaped carbon nanotubes (N-BCNTs) were produced by catalytic chemical vapor deposition using butylamine as carbon sources. The morphology of the nanotubes and the type of nitrogen incorporation was studied. The surface polarity of the synthetized nanotubes was tuned by using three different oxidizing agents, H2SO4/HNO3 mixture, cc. HNO3, and H2O2. It has been shown that due to the oxidation, the presence of oxygen containing functional groups (–COOH, –OH), and therefore, the hydrophilic character of the N-BCNTs considerably increased. The functionalized N-BCNTs and non-treated CNTs were used as support materials to prepare 5 wt% Pd catalysts. The synthesized Pd nanocomposites were successfully tested in liquid phase heterogeneous hydrogenation (octadecene to octadecane). Although, the catalytic activity decreased by the increasing surface polarity of the nanotubes, which can be attributed to the non-polar reactants, this effect could be beneficial in case of hydrophilic systems.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalReaction Kinetics, Mechanisms and Catalysis
DOIs
Publication statusAccepted/In press - May 11 2018

Fingerprint

Carbon Nanotubes
Bamboo
Catalyst supports
Hydrogenation
hydrogenation
Carbon nanotubes
polarity
Nitrogen
carbon nanotubes
Nanotubes
nitrogen
catalysts
nanotubes
Butylamines
Oxidants
Functional groups
catalytic activity
Chemical vapor deposition
Catalyst activity
Nanocomposites

Keywords

  • CCVD
  • Hydrogenation
  • N-BCNT
  • Nanocomposites
  • Pd catalysts

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Nitrogen-doped bamboo-shaped carbon nanotube supported catalysts for heterogeneous hydrogenation. The effect of surface polarity. / Vanyorek, László; Sikora, Emőke; Kiss, Adrienn; Sike, Ádám; Hutkai, Zsuzsanna G.; Pekker, Péter; Viskolcz, Béla; Fiser, Béla.

In: Reaction Kinetics, Mechanisms and Catalysis, 11.05.2018, p. 1-10.

Research output: Contribution to journalArticle

Vanyorek, László ; Sikora, Emőke ; Kiss, Adrienn ; Sike, Ádám ; Hutkai, Zsuzsanna G. ; Pekker, Péter ; Viskolcz, Béla ; Fiser, Béla. / Nitrogen-doped bamboo-shaped carbon nanotube supported catalysts for heterogeneous hydrogenation. The effect of surface polarity. In: Reaction Kinetics, Mechanisms and Catalysis. 2018 ; pp. 1-10.
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