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Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...

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Related Experiment Video

Updated: Jun 18, 2026

Planar and Three-Dimensional Printing of Conductive Inks
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High Performance Tunable Catalysts Prepared by Using 3D Printing.

Cristian Yesid Chaparro-Garnica1, Esther Bailón-García1,2, Arantxa Davó-Quiñonero1

  • 1Department of Inorganic Chemistry, University of Alicante, Carretera de San Vicente del Raspeig s/n, 03080 Alicante, Spain.

Materials (Basel, Switzerland)
|September 10, 2021
PubMed
Summary

3D printing enables novel carbon monolith catalysts with complex channels, outperforming conventional designs. This innovative approach enhances carbon dioxide hydrogenation to methane by 25%, offering new possibilities for heterogeneous catalysis.

Keywords:
3D-printingCO2 methanationcarbon monolithsmorphology controlporosity control

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Catalysis

Background:

  • Honeycomb monoliths are standard supports in industrial heterogeneous catalysis.
  • Current extrusion methods limit channel design to parallel structures.

Purpose of the Study:

  • To explore 3D printing for creating advanced monolith catalysts with complex channel networks.
  • To evaluate the performance of these novel catalysts in carbon dioxide hydrogenation.

Main Methods:

  • Fabrication of high-performance carbon integral monoliths using 3D printing.
  • Loading a Ni/CeO2 active phase onto the monoliths.
  • Testing the catalysts for carbon dioxide (CO2) hydrogenation to methane.

Main Results:

  • The 3D printed monoliths feature a complex network of interconnected channels.
  • CO2 methanation rate increased by 25% at 300 °C compared to conventional catalysts.
  • The enhanced performance is attributed to the turbulent flow induced by the novel channel design.

Conclusions:

  • 3D printing offers new design possibilities for heterogeneous catalysts that outperform traditional ones.
  • The developed methodology and monoliths are applicable to various heterogeneous catalysis reactions.
  • This work opens new avenues for manufacturing tailored heterogeneous catalysts using 3D printing.