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Catalysts publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Integrating Pyrolysis with Catalysis: A Pathway to Sustainable Chemicals

edited by Soheil Valizadeh and

Penglei Chen

submission deadline 15 Dec 2025 | Viewed by 85 | Submission Open

Keywords: catalytic pyrolysis; biomass valorization; plastic waste; hierarchical zeolites; sustainable chemicals; value-added chemicals; renewable fuels; bio-oil upgrading; waste-to-chemicals; lignocellulosic biomass; unconventional fossil fuels; oil shale; shale oil; oil sands; heavy oil; coal-to-liquid; mesoporous catalysts; green chemistry

(This special issue belongs to the Section Biomass Catalysis)

Fiber Catalysts for Efficient Energy and Environmental Catalysis

edited by

Gang Yu

and Yongshuai Xie

submission deadline 20 Dec 2025 | Viewed by 19 | Submission Open

Keywords: fiber-structured catalysts; structure-function integration; stability enhancement; environmental catalysis; carrier-active component synergy

(This special issue belongs to the Section Environmental Catalysis)

Photocatalytic Water Splitting and Pollutant Degradation: Recent Progress and Emerging Trends

edited by Zichao Lian

submission deadline 30 Dec 2025 | 1 articles | Viewed by 124 | Submission Open

Keywords: photocatalysis; photocatalytic water splitting; environmental remediation; emerging contaminants; synergistic effect; synthesis of heterostructured photocatalysts; Fenton-like reactions; solar energy conversion; photoinduced carrier dynamics

(This special issue belongs to the Section Photocatalysis)

Photocatalysts for CO₂ Reduction

edited by Huanhuan Liu and

Changfa Guo

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1256 | Submission Open

Keywords: photocatalysis; photocatalyst; composite material; heterojunction; CO2 reduction; selectivity in CO2 reduction; catalytic mechanism

(This special issue belongs to the Section Photocatalysis)

Green Heterogeneous Catalysis for CO₂ Reduction

edited by

Consuelo Alvarez-Galvan

Marisol Faraldos

and Belén Bachiller-Baeza

submission deadline 31 Dec 2025 | 1 articles | Viewed by 896 | Submission Open

Keywords: carbon dioxide; catalysis; reduction; chemicals; fuels; characterisation; structure– activity correlations

Nanocatalysts for the Degradation of Refractory Pollutants, 2nd Edition

edited by

Sheng Guo

Yuan Li

and

Abdul Naeem Khan

submission deadline 31 Dec 2025 | 1 articles | Viewed by 851 | Submission Open

Keywords: environmental catalysis; advanced oxidation processes (AOPs); photocatalysis; nanomaterial; nanotechnology; water treatment; environmental remediation; catalyst characterization; VOC degradation; emerging contaminants; non-biodegradable organic contaminants

(This special issue belongs to the Section Environmental Catalysis)

Catalysis for the Future

edited by

Keith Hohn

and

Evangelos Topakas

submission deadline 31 Dec 2025 | Viewed by 525 | Submission Open

Keywords: catalytic materials; environmental catalysis; photocatalysis; electrocatalysis; biocatalysis; biomass catalysis; industrial catalysis; computational catalysis; other catalyzed processes

Microporous and Mesoporous Materials for Catalytic Applications, 2nd Edition

edited by

Narendra Kumar

submission deadline 31 Dec 2025 | Viewed by 408 | Submission Open

Keywords: microporous materials; mesoporous materials; catalysts; synthesis; catalysis; characterization; chemicals; fuels

(This special issue belongs to the Section Catalytic Materials)

Catalytic Carbon Emission Reduction and Conversion in the Environment

edited by Pengwei Huo, Xin Liu, Xianghai Song and Yangyang Yang

submission deadline 31 Dec 2025 | 1 articles | Viewed by 359 | Submission Open

Keywords: carbon catalytic materials; carbon emission reduction; carbon conversion; carbon neutrality; waste upcycling; environmental protection

(This special issue belongs to the Section Environmental Catalysis)

Catalysis Accelerating Energy and Environmental Sustainability

edited by Jinxing Chen

submission deadline 31 Dec 2025 | Viewed by 204 | Submission Open

Keywords: energy conversion; environmental sustainability; electrocatalysis; photocatalysis; green chemistry; earth-abundant catalysts; catalyst durability and regeneration; low-emission processes

(This special issue belongs to the Section Environmental Catalysis)

Catalytic Advances in Biomass Derivatives to Value-Added Products and Biomass Conversion for Green Chemistry

edited by

Xianxiang Liu

, Shuolin Zhou and

Xu Yang

submission deadline 31 Dec 2025 | Viewed by 198 | Submission Open

Keywords: biomass conversion; biomass upgrading; biomass derivatives; biomass-based chemicals; bioproducts; biofuels; green chemistry; catalytic upgrading; metal catalysts; non-precious metal catalysts; heterogeneous catalysis

(This special issue belongs to the Section Biomass Catalysis)

Catalysts: New Preparation Methods and Advanced Characterization

edited by

Werner Oberhauser

submission deadline 31 Dec 2025 | Viewed by 178 | Submission Open

Keywords: heterogenous catalysts; synthesis techniques; characterization techniques; structure– performance relationship

(This special issue belongs to the Section Catalytic Materials)

Catalytic Processes in Environmental Applications

edited by Yunfeng Ma, Peng Lu and Xiaole Weng

submission deadline 31 Dec 2025 | Viewed by 96 | Submission Open

Keywords: industrial exhaust treatment; catalytic oxidation; selective catalytic reduction; multi-pollutant synergistic catalysis; electro-driven/assisted catalysis; low-energy consumption catalysis; catalyst design assisted by AI; advanced characterization techniques

(This special issue belongs to the Section Environmental Catalysis)

Advances in Catalytic Reaction for Wastewater Treatment

edited by

Meng Li

, Xu Jin and

Jin Tang

submission deadline 31 Dec 2025 | Viewed by 85 | Submission Open

Keywords: heavy metal removal; electrochemical oxidation/reduction; emerging organic pollutants; environmentally friendly catalysts; adsorption; bioelectrochemical technology; photocatalysis; membrane separation; wastewater treatment

(This special issue belongs to the Section Catalytic Materials)

Porous Catalytic Materials for Environmental Purification

edited by

Fukun Bi

submission deadline 31 Dec 2025 | Viewed by 77 | Submission Open

Keywords: porous materials; catalytic oxidation; advanced oxidation; photocatalysis; VOCs degradation; CO2 catalytic conversion; NOx catalytic reduction; CO oxidation

(This special issue belongs to the Section Environmental Catalysis)

Advanced Semiconductor Photocatalysts

edited by

Amr Fouda

Mohammed F. Hamza

Ningchao Zheng

and Deqian Zeng

submission deadline 31 Dec 2025 | Viewed by 70 | Submission Open

Keywords: semiconductors; photocatalytic reaction; nanomaterials; heavy metals; radioactive ions; wastewater; dyes; inorganic and organic pollutants; biological activities and photocatalytic mechanisms

(This special issue belongs to the Section Photocatalysis)

Advanced Catalysts for Energy Conversion and Environmental Protection

edited by

Xiaohong Yang

submission deadline 31 Dec 2025 | Viewed by 65 | Submission Open

Keywords: photoelectrocatalytic water splitting; photoelectrocatalytic CO2 reduction; hydrogen production/storage; energy conversion; environmental protection

(This special issue belongs to the Section Catalytic Materials)

State-of-the-Art Catalysts for the Removal of Halogenated Pollutants

edited by Juan Zhou

submission deadline 31 Dec 2025 | Viewed by 51 | Submission Open

Keywords: halogenated pollutants; catalytic reduciton/oxidation; halogen transfer mechanism; high-value conversion; collaborative elimination; catalyst recycling

(This special issue belongs to the Section Environmental Catalysis)

Photocatalysis and Electrocatalysis for Water Remediation

edited by

Peike Cao

and Haiguang Zhang

submission deadline 31 Dec 2025 | Viewed by 51 | Submission Open

Keywords: photocatalysis; electrocatalysis; water remediation; pollutant degradation; nanomaterials

(This special issue belongs to the Section Environmental Catalysis)

Catalysts for CO₂ Conversions

edited by Jiongliang Yuan

submission deadline 31 Dec 2025 | Viewed by 50 | Submission Open

Keywords: catalytic conversion; CO2; synthesis; physicochemical characterization; catalytic performance; catalytic; mechanistic

(This special issue belongs to the Section Environmental Catalysis)

Electrocatalysts for Nitrogen Reduction Reaction

edited by

Qiqi Mao

submission deadline 31 Dec 2025 | Viewed by 44 | Submission Open

Keywords: nitrogen reduction reaction; electrocatalysis; ammonia synthesis; nanomaterials; N2 activation; catalyst design

(This special issue belongs to the Section Electrocatalysis)

Fungal Enzymes in Focus: Novel Approaches in Production and Purification for Industrial and Environmental Challenges

edited by Romero M.P. Brandão-Costa, Galba M. Campos-Takaki, Ana Cristina L. Leite and Ana Lúcia F. Porto

submission deadline 31 Dec 2025 | Viewed by 24 | Submission Open

Keywords: fermentation; filamentous fungi; enzymes; biotechnology

(This special issue belongs to the Section Biocatalysis)

Enzymatic and Chemoenzymatic Cascade Reactions

edited by

Marco Girhard

and Florian Tieves

submission deadline 31 Dec 2025 | Viewed by 16 | Submission Open

Keywords: cascade reactions; chemo-enzymatic reactions; biocatalysis; biotransformation; multistep tandem reactions; one-pot synthesis; sustainable chemistry; reaction optimization; enzyme engineering; enzyme compatibility; organic synthesis; functionalization of small molecules

(This special issue belongs to the Section Biocatalysis)

Efficient Catalysts in Carbon Dioxide (CO₂) Conversion

edited by Hao Wang

submission deadline 15 Jan 2026 | Viewed by 68 | Submission Open

Keywords: CO2 conversion; heterogeneous catalysis; catalyst design; electrocatalysis; photocatalysis; metal– organic frameworks (MOFs); reaction mechanisms; carbon capture and utilization

(This special issue belongs to the Section Catalytic Materials)

New Development of Catalysts for Organometallic Chemistry

edited by

Mariusz Majchrzak

submission deadline 30 Jan 2026 | Viewed by 27 | Submission Open

Keywords: homogeneous catalysis; nanocatalysts; mechanism and kinetics; ceramic materials; polymeric hybrid materials; surface studies of catalytic materials; catalytic systems in the synthesis of hybrid materials; characterization of catalytic materials; hybrid catalysts-surface chemistry and properties

Advanced Catalytic Materials for CO₂ Conversion: From Electrocatalysis to Photocatalysis

edited by

Caue Ribeiro

and Osmando F. Lopes

submission deadline 31 Jan 2026 | 1 articles | Viewed by 290 | Submission Open

Keywords: electrocatalysis; photocatalysis; CO2 reduction; material engineering; doped catalysts; heterostructures; metal alloys; nanomaterials

(This special issue belongs to the Section Catalytic Materials)

Transition-Metal-Catalyzed Organic Synthesis

edited by Chengwei Liu

submission deadline 31 Jan 2026 | Viewed by 137 | Submission Open

Keywords: transition metal catalysis; organic synthesis; cross-coupling reactions; polymerization; organometallics

(This special issue belongs to the Section Catalysis in Organic and Polymer Chemistry)

Catalytic Valorization and Utilization of Biomass and Biomass Derivatives

edited by Linyu Jiao and

Bin Tian

submission deadline 31 Jan 2026 | Viewed by 136 | Submission Open

Keywords: biomass valorization; utilization; catalytic conversion; platform chemical; pyrolysis; gasification; high-value product

(This special issue belongs to the Section Biomass Catalysis)

Photo(electro)catalysts Green Chemistry, Environmental Pollution, and Energy Applications

edited by

Jinchen Fan

and Hong Li

submission deadline 31 Jan 2026 | Viewed by 67 | Submission Open

Keywords: green chemistry; electrocatalysts; photocatalysts; surface and interfacial chemistry; theoretical studies in situ/operando characterizations; energy devices

(This special issue belongs to the Section Photocatalysis)

Catalysis in the Hydrogen Economy: From Hydrogen Production to Storage

edited by Jiaguang Zheng, Zhendong Yao and Jie Yu

submission deadline 31 Jan 2026 | Viewed by 60 | Submission Open

Keywords: hydrogen production; water splitting; solid-state hydrogen storage; hydrides; catalyzing mechanism

(This special issue belongs to the Section Catalysis for Sustainable Energy)

Chalcogenides as Efficient Catalysts: Synthesis, Characterization and Applications

edited by

Amanda Carrillo Castillo

Priscy Alfredo Luque Morales

and Santos Jesús Castillo

submission deadline 31 Jan 2026 | Viewed by 52 | Submission Open

Keywords: transition metal-based chalcogenides; solid phase catalysts; nanoparticles in the catalysis; catalysts for green chemicals; catalysts for hydrogen; reaction mechanism; organocatalysts; energy materials; electrocatalyst; photocatalysts in water treatment; environmental sustainability; heterogeneous catalysts; degradation of contaminants

Recent Advances in Photocatalytic Treatment of Pollutants in Water, 2nd Edition

edited by Zhexin Zhu, Xiufang Chen and

Yinsong Si

submission deadline 31 Jan 2026 | Viewed by 49 | Submission Open

Keywords: photocatalytic nanomaterial; advanced oxidation technology; environmental photocatalysis; degradation mechanism; wastewater treatment

(This special issue belongs to the Section Photocatalysis)

Carbon-Based Materials Catalysts for Biomass Conversions and Green Energy

edited by

Doris Ruiz

and Ricardo Chimentão

submission deadline 31 Jan 2026 | Viewed by 49 | Submission Open

Keywords: heterogeneous catalysis; carbon-based materials and adsorbents; biomass valorization; high-value chemicals; green energy

(This special issue belongs to the Section Biomass Catalysis)

Carbon-Based Materials Catalysts for Energy and Hydrogen Productions

edited by Kai Deng

submission deadline 31 Jan 2026 | Viewed by 26 | Submission Open

Keywords: carbon-based catalysts; electrochemical water splitting; photocatalytic water splitting; sustainable catalysis; renewable energy conversion; CO2 utilization; heteroatom doping; biomass conversion

(This special issue belongs to the Section Catalytic Materials)

Electrochemical and Electrocatalysis with Porous Materials

edited by Emad S. Goda and Rui Wang

submission deadline 31 Jan 2026 | Viewed by 7 | Submission Open

Keywords: electrochemical; electrocatalysis; porous materials; Metal– Organic Frameworks (MOFs); Covalent Organic Frameworks (COFs); molecular sieves; energy storage

(This special issue belongs to the Section Electrocatalysis)

Sustainable Catalysis for Green Chemistry and Energy Transition, 2nd Edition

edited by Wajid Zaman and Muhammad Saeed Akhtar

submission deadline 31 Jan 2026 | Viewed by 6 | Submission Open

Keywords: sustainable catalysis; green chemistry; energy transition; heterogeneous catalysis; renewable energy; hydrogen evolution; CO₂ conversion; biofuels; photocatalysis; electrocatalysis; biocatalysts; biomass valorization; transition metal catalysis; organometallic catalysis; circular economy; catalytic recycling; computational catalysis; machine learning; catalyst design; low-carbon future

(This special issue belongs to the Section Environmental Catalysis)

Nanomaterials for Electrocatalytic and Photoelectrocatalytic Water Splitting

edited by

Jin You Zheng

and Xiaomei Yu

submission deadline 31 Jan 2026 | Viewed by 6 | Submission Open

Keywords: nanostructured catalysts; crystal facet engineering; surface modification; heterostructure; band gap engineering; electrocatalytic water splitting; photoelectrochemical water splitting

(This special issue belongs to the Section Photocatalysis)

Designing the Future: Covalent Organic Frameworks Meet Single-Atom Catalysts

edited by Wei Che

submission deadline 31 Jan 2026 | Viewed by 3 | Submission Open

Keywords: COFs; advanced energy conversion; single-atom catalysts; molecular design; metal site design

(This special issue belongs to the Section Catalysis in Organic and Polymer Chemistry)

Two-Dimensional Materials in Photo(electro)catalysis, 2nd Edition

edited by Daimei Chen

submission deadline 31 Jan 2026 | Viewed by 1 | Submission Open

Keywords: two-dimensional materials; catalysis; CO2 utilization; pollutant abatement; hydrogen production; co-catalysts; heterojunction; solar fuels

(This special issue belongs to the Section Photocatalysis)

Synthesis and Catalytic Applications of Nanomaterials

edited by