IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v140y2019icp452-460.html
   My bibliography  Save this article

The role of copper oxidation state in Cu/ZnO/Al2O3 catalysts in CO2 hydrogenation and methanol productivity

Author

Listed:
  • Dasireddy, Venkata D.B.C.
  • Likozar, Blaž

Abstract

CO2 hydrogenation was carried out over a series of Cu/ZnO/Al2O3 catalysts, which were prepared by different synthesis methods (co-precipitation, ultrasound-assisted, sol-gel and solid-state). The applicative physicochemical properties of the materials and their catalytic performance were investigated. Subsequently, the preparation methodology influence on the average Cu particle size, the interactions of metals, the exposed copper phases surface area and the ratio of Cu0/Cu+, as well as its specific effect on reactions, were assessed in detail. The ultrasonic synthetic route provided increased basic active sites' number and significant methanol selectivity, compared to the conventional precipitation procedure, while it also improved the dispersion of separate Cu metallic particles, which ultimately changed the intrinsic reactive activity of CuO–ZnO. The trend of apparent CH3OH productivity rate was consistent with the Cu+/Cu0 ratio or content as well. The presence of Cu+ species at high concentration levels is thus crucial for high methanol selectivity and an extremely low selectivity towards CO at the conventional industrial operating conditions analysed. The dependence of the selective methanol production on the fraction of determined alkaline moieties was found analogous to all catalysts studied. Cu+/Cu0 oxidation state role and distribution may, therefore, aid in CO2 conversion catalyst design and optimisation.

Suggested Citation

  • Dasireddy, Venkata D.B.C. & Likozar, Blaž, 2019. "The role of copper oxidation state in Cu/ZnO/Al2O3 catalysts in CO2 hydrogenation and methanol productivity," Renewable Energy, Elsevier, vol. 140(C), pages 452-460.
    • Handle: RePEc:eee:renene:v:140:y:2019:i:c:p:452-460
    DOI: 10.1016/j.renene.2019.03.073
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148119303787
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2019.03.073?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Dasireddy, Venkata D.B.C. & Vengust, Damjan & Likozar, Blaž & Kovač, Janez & Mrzel, Aleš, 2021. "Production of syngas by CO2 reduction through Reverse Water–Gas Shift (RWGS) over catalytically-active molybdenum-based carbide, nitride and composite nanowires," Renewable Energy, Elsevier, vol. 176(C), pages 251-261.
    2. Yugang Cheng & Mengru Zeng & Zhaohui Lu & Xidong Du & Hong Yin & Liu Yang, 2020. "Effects of Supercritical CO 2 Treatment Temperatures on Mineral Composition, Pore Structure and Functional Groups of Shale: Implications for CO 2 Sequestration," Sustainability, MDPI, vol. 12(9), pages 1-22, May.
    3. Han, Jian & Yu, Jun & Xue, Zhaoteng & Wu, Guisheng & Mao, Dongsen, 2024. "Highly efficient CO2 hydrogenation to methanol over Cu–Ce1-xZrxO2 catalysts prepared by an eco-friendly and facile solid-phase grinding method," Renewable Energy, Elsevier, vol. 222(C).
    4. Sascha Kleiber & Moritz Pallua & Matthäus Siebenhofer & Susanne Lux, 2021. "Catalytic Hydrogenation of CO 2 to Methanol over Cu/MgO Catalysts in a Semi-Continuous Reactor," Energies, MDPI, vol. 14(14), pages 1-14, July.
    5. Wang, Yadong & Yu, Haoran & Hu, Qing & Huang, Yanpeng & Wang, Ximing & Wang, Yuanhao & Wang, Fenghuan, 2023. "Application of microimpinging stream reactor coupled with ultrasound in Cu/CeZrOx solid solution catalyst preparation for CO2 hydrogenation to methanol," Renewable Energy, Elsevier, vol. 202(C), pages 834-843.
    6. Dasireddy, Venkata D.B.C. & Likozar, Blaž, 2022. "Photocatalytic CO2 reduction to methanol over bismuth promoted BaTiO3 perovskite nanoparticle catalysts," Renewable Energy, Elsevier, vol. 195(C), pages 885-895.
    7. Pérez-Hernández, Raúl & Martínez, Albina Gutiérrez & Galicia, Gilberto Mondragón & Fernández García, María E. & Nuñez, Oscar Carrera & Hernández, Miriam Vega & López, Pavel & Gutiérrez Wing, Claudia E, 2023. "Carbon cycle using the CO2 conversion to methane as environmental feasibility on Ni/TiO2-Na nanotubes catalysts," Renewable Energy, Elsevier, vol. 217(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:140:y:2019:i:c:p:452-460. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.