From Catalyst Design to Sustainable Catalytic Processes: Advances in Reactor Engineering

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalytic Reaction Engineering".

Deadline for manuscript submissions: 31 May 2026 | Viewed by 899

Special Issue Editors


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Guest Editor
Laboratory of Catalytic Reactor Engineering Applied to Chemical and Biological Systems, Department of Process and Hydraulic Engineering, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico
Interests: catalytic reactor engineering; reaction kinetics; multiscale analysis in catalytic systems; transport phenomena in catalytic reactors
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Guest Editor
Department of Chemical Engineering, Izmir Institute of Technology, Gülbahçe Campus, Urla, Izmir 35430, Turkey
Interests: computational fluid dynamics (CFD) of reactor and process design; reactor engineering; process intensification; energy-efficiency in reactor design for process intensification
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Laboratory of Process Analysis, Energy Department, Universidad Autónoma Metropolitana-Azcapotzalco, Mexico City 02128, Mexico
Interests: catalysis applied to hydrotreatment reactions for the elimination of pollutant precursor compounds; production of biofuels via chemical reaction; adsorption of pollutants in air, soil, and water, or their degradation via photocatalysis

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Guest Editor
Laboratory of Process Analysis, Energy Department, Universidad Autónoma Metropolitana-Azcapotzalco, Mexico City 02128, Mexico
Interests: biocatalysts; enzymes; bioreactions; metabolic pathways; bioprocess engineering

Special Issue Information

Dear Colleagues,

The transition to sustainable catalytic processes is essential to address global energy, environmental, and climate challenges. This Special Issue focuses on recent advances that bridge catalyst design with catalytic reactor engineering to develop sustainable chemical or biological processes. We welcome contributions that explore the full spectrum, from the design, development, and evaluation of catalysts to the scale-up of catalytic reactors. Both experimental and theoretical studies are encouraged. This Special Issue aims to provide a platform for cross-disciplinary research that combines catalysis, reaction engineering, and process system engineering to foster innovation in sustainble technologies.

The upcoming Special Issue will feature selected works presented at the International Energy Conference (IEC) 2025, to be held in Mexico City, Mexico, and the International Conference on Mathematics in (bio/food) Chemical Kinetics and Engineering (MaCKiE) 2025, to be held in Izmir, Turkey. This Special Issue will also welcome additional high-quality contributions in related fields, with a focus on innovative research at the intersection of sustainability, chemical engineering, biochemical engineering, food engineering, experimentation, and mathematical modeling.

Prof. Dr. Carlos Omar Castillo Araiza
Dr. Abhishek Dutta
Prof. Dr. José Antonio Colín-Luna
Prof. Dr. Margarita M. González-Brambila
Guest Editors

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Keywords

  • catalysis
  • catalytic reactor engineering
  • food engineering
  • chemical engineering
  • biochemical engineering
  • multiscale-based modeling

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Published Papers (1 paper)

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Research

23 pages, 4581 KB  
Article
Carbonate Inhibition in Au-Cu/γ-Al2O3 Catalysts for CO Oxidation
by Karla López, Gamaliel Che-Galicia, Rodolfo Zanella, Jesús F. Guayaquil-Sosa and Alvaro Sampieri
Catalysts 2025, 15(11), 1080; https://doi.org/10.3390/catal15111080 - 14 Nov 2025
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Abstract
Incorporating Cu into gold-based catalysts effectively reduced nanoparticle sintering and free carbonate accumulation, promoting long-term preservation of catalytic surface area over time. This study explores the catalytic activity of monometallic Au and bimetallic AuCu catalysts with varying Au:Cu atomic ratios (1:0.5, 1:1, and [...] Read more.
Incorporating Cu into gold-based catalysts effectively reduced nanoparticle sintering and free carbonate accumulation, promoting long-term preservation of catalytic surface area over time. This study explores the catalytic activity of monometallic Au and bimetallic AuCu catalysts with varying Au:Cu atomic ratios (1:0.5, 1:1, and 1:1.5) that were synthesized on γ-Al2O3 via sequential deposition–precipitation with urea. The catalysts were pretreated in either air or H2 and evaluated for CO oxidation activity and stability. A comprehensive characterization (EDS, BET, TEM, H2-TPR, O2-TPO, XPS, DRIFTS, and UV–Vis) was used to investigate particle size, metal oxidation states, and redox properties. Among all materials, the AuCu 1:1 catalyst exhibited the highest low-temperature CO conversion (>90% at 0 °C) and improved stability during 24 h tests, reflecting minimal nanoparticle sintering as confirmed by TEM analysis. In situ DRIFTS revealed that the presence of Cu+ and Cu2+ minimizes the accumulation of free carbonates (one of the main deactivation pathways in Au/γ-Al2O3) while promoting the formation of reactive intermediates that facilitate CO2 production. Notably, air pretreatment at moderate temperature proved as effective as H2 pretreatment in activating both monometallic and bimetallic catalysts. These findings highlight the role of Cu as a structural and electronic promoter of gold, offering practical guidelines for designing durable, cost-effective catalysts for low-temperature CO oxidation on non-reducible supports. Full article
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