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Catalytic Conversion of Waste Resources for Sustainable Energy and a...
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Catalytic Conversion of Waste Resources for Sustainable Energy and a Cleaner Environment

A Special Issue of Catalysts (ISSN 2073-4344) belonging to the section "Catalysis for Sustainable Energy".

Deadline for manuscript submissions: 31 October 2026 | Viewed by 484

Editor

Prof. Dr. Guojie Zhang

E-Mail Website
Guest Editor
State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
Interests: energy catalytic transformation; porous carbons; CO2 adsorption and capture; activated carbon; heteroatom doping; carbon nanotubes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The catalytic transformation of low-carbon molecules and waste resources represents a pivotal area of research aimed at addressing global sustainability challenges. Catalytic conversion provides a low-carbon, high-efficiency bridge between these challenges by transforming waste plastics, biomass, CO2, and wastewater pollutants into fuels, H2, methanol, olefins, and specialty chemicals in a single-pot or tandem fashion. Recent breakthroughs in single-atom catalysts, bio-hydrothermal catalysts, and plasma-coupled reactors have pushed conversion yields above 90 % while suppressing harmful by-products; yet rational catalyst design, mechanistic understanding, and scale-up engineering remain fragmented across disciplines. This Special Issue seeks to explore novel catalytic processes, materials, and mechanisms that enable the efficient conversion of low-carbon feedstocks and waste materials into valuable chemicals, fuels, and energy carriers. By focusing on the integration of renewable resources and waste streams, we aim to highlight innovative strategies for reducing carbon footprints and advancing the circular economy. This Special Issue assembles experimental and theoretical advances that accelerate waste-to-energy and waste-to-environment technologies. Topics of interest include, but are not limited to, catalytic processes for waste valorization, CO2 utilization, biomass conversion, and the development of new catalytic systems for sustainable chemical production. Through this issue, we hope to foster collaboration across academia, industry, and policy to pave the way for more sustainable industrial practices and cleaner energy solutions.

Prof. Dr. Guojie Zhang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • catalytic transformation
  • low-carbon molecules
  • waste resources
  • sustainable catalysis
  • circular economy
  • cleaner environment

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Published Papers (1 paper)

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Research

21 pages, 5478 KB  
Article
Synthesis-Route Engineering of Cu–Sm–Ti Oxides for Coupled Low-Temperature NH3-SCR and CO Oxidation
by Yifei Wang, Ruoxin Li, Bin Jia, Jun Liu and Guojie Zhang
Catalysts 2026, 16(9), 806; https://doi.org/10.3390/catal16090806 - 6 Sep 2026
Viewed by 125
Abstract
Low-temperature sintering flue gas contains both nitrogen oxides (NOx) and carbon monoxide (CO), requiring bifunctional catalysts for concurrent pollutant abatement. Herein, CuSmTi composite oxides with an identical nominal composition were synthesized via impregnation, mechanical grinding, and sol–gel methods to examine the [...] Read more.
Low-temperature sintering flue gas contains both nitrogen oxides (NOx) and carbon monoxide (CO), requiring bifunctional catalysts for concurrent pollutant abatement. Herein, CuSmTi composite oxides with an identical nominal composition were synthesized via impregnation, mechanical grinding, and sol–gel methods to examine the effects of preparation route on their structure, surface properties, and catalytic performance in coupled NH3-SCR and CO oxidation. CuSmTi-SG exhibited the best performance, achieving >40% NOx conversion at 125 °C, complete NOx and CO conversion at 200 °C, and nearly 100% N2 selectivity over 100–300 °C, with stable performance over 24 h. It possessed a higher surface area (131.4 m2 g−1), pore volume (0.230 cm3 g−1), and smaller TiO2 crystallite size (8.5 nm) than the other catalysts. Spectroscopic analyses showed that sol–gel synthesis altered the surface electronic states of Cu and Sm species, resulting in a higher Cu+ fraction and greater amounts of medium-to-strong Lewis acid sites and labile surface oxygen species. In situ DRIFTS indicated that CO oxidation proceeded predominantly via a Mars–van Krevelen mechanism over Cu+ sites, whereas NH3-SCR mainly followed an Eley–Rideal pathway. CO and NH3 preferentially interacted with different surface sites, resulting in limited mutual inhibition. These results demonstrate that the preparation route can modify the structure and surface chemistry of CuSmTi catalysts without changing their nominal composition, thereby affecting their performance in low-temperature NOx and CO abatement. Full article
(This article belongs to the Special Issue Catalytic Conversion of Waste Resources for Sustainable Energy and a Cleaner Environment)
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