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Continuous Supercritical Water Impregnation Method for the Preparation of Metal Oxide on Activated Carbon Composite Materials

Author

Listed:
  • Florentina Maxim

    (“Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania)

  • Elena-Ecaterina Toma

    (“Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania)

  • Giuseppe-Stefan Stoian

    (“Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania)

  • Cristian Contescu

    (Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, TN 37831, USA
    Retired.)

  • Irina Atkinson

    (“Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania)

  • Christian Ludwig

    (Paul Scherrer Institute (PSI), ENE LEP CPM, 5232 Villigen PSI, Switzerland
    École Polytechnique Fédérale de Lausanne (EPFL), ENAC IIE GR-LUD, 1015 Lausanne, Switzerland)

  • Speranta Tanasescu

    (“Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania)

Abstract

Metal oxide (Me x O y ) nanomaterials are used as catalysts and/or sorbents in processes taking place in supercritical water (scH 2 O), which is the “green” solvent needed to obtain energy-relevant products. Their properties are significantly influenced by the synthesis method used to prepare active Me x O y . In addition, the use of supported Me x O y nanoparticles is more practical and cost-effective in terms of their performance maintenance. Within this context, the present study reports on the preparation of carbon-supported ZnO and CuO composites using an innovative scH 2 O impregnation method. Metal oxides were impregnated on a carbon (C) support using a continuous-flow tubular reactor. The results show that impregnation in scH 2 O is a promising approach for the preparation of ZnO/C and CuO/C composite materials. This one-step synthesis method, in a continuous flow, uses neither a seed layer nor a mineralizer, and it needs substantially lower preparation times than conventional impregnation methods.

Suggested Citation

  • Florentina Maxim & Elena-Ecaterina Toma & Giuseppe-Stefan Stoian & Cristian Contescu & Irina Atkinson & Christian Ludwig & Speranta Tanasescu, 2024. "Continuous Supercritical Water Impregnation Method for the Preparation of Metal Oxide on Activated Carbon Composite Materials," Energies, MDPI, vol. 17(4), pages 1-14, February.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:4:p:913-:d:1339601
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    References listed on IDEAS

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    1. Filip Simeski & Matthias Ihme, 2023. "Supercritical fluids behave as complex networks," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
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