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Pd Catalysts Supported on Bamboo-Like Nitrogen-Doped Carbon Nanotubes for Hydrogen Production

Author

Listed:
  • Arina N. Suboch

    (Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia)

  • Olga Y. Podyacheva

    (Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia)

Abstract

Bamboo-like nitrogen-doped carbon nanotubes (N-CNTs) were used to synthesize supported palladium catalysts (0.2–2 wt.%) for hydrogen production via gas phase formic acid decomposition. The beneficial role of nitrogen centers of N-CNTs in the formation of active isolated palladium ions and dispersed palladium nanoparticles was demonstrated. It was shown that although the surface layers of N-CNTs are enriched with graphitic nitrogen, palladium first interacts with accessible pyridinic centers of N-CNTs to form stable isolated palladium ions. The activity of Pd/N-CNTs catalysts is determined by the ionic capacity of N-CNTs and dispersion of metallic nanoparticles stabilized on the nitrogen centers. The maximum activity was observed for the 0.2% Pd/N-CNTs catalyst consisting of isolated palladium ions. A ten-fold increase in the concentration of supported palladium increased the contribution of metallic nanoparticles with a mean size of 1.3 nm and decreased the reaction rate by only a factor of 1.4.

Suggested Citation

  • Arina N. Suboch & Olga Y. Podyacheva, 2021. "Pd Catalysts Supported on Bamboo-Like Nitrogen-Doped Carbon Nanotubes for Hydrogen Production," Energies, MDPI, vol. 14(5), pages 1-13, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1501-:d:513523
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    References listed on IDEAS

    as
    1. Olga Podyacheva & Alexander Lisitsyn & Lidiya Kibis & Andrei Boronin & Olga Stonkus & Vladimir Zaikovskii & Arina Suboch & Vladimir Sobolev & Valentin Parmon, 2019. "Nitrogen Doped Carbon Nanotubes and Nanofibers for Green Hydrogen Production: Similarities in the Nature of Nitrogen Species, Metal–Nitrogen Interaction, and Catalytic Properties," Energies, MDPI, vol. 12(20), pages 1-14, October.
    2. Fedor S. Golub & Sergey Beloshapkin & Artem V. Gusel’nikov & Vasily A. Bolotov & Valentin N. Parmon & Dmitri A. Bulushev, 2019. "Boosting Hydrogen Production from Formic Acid over Pd Catalysts by Deposition of N-Containing Precursors on the Carbon Support," Energies, MDPI, vol. 12(20), pages 1-13, October.
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    Cited by:

    1. Vladislav Sadykov, 2023. "Advances in Hydrogen and Syngas Generation," Energies, MDPI, vol. 16(7), pages 1-4, March.
    2. Dmitri A. Bulushev, 2021. "Advanced Catalysis in Hydrogen Production from Formic Acid and Methanol," Energies, MDPI, vol. 14(20), pages 1-5, October.

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