Economía Circular
Economía Circular
Low‐Temperature Pyrolysis: A Universal Route to High‐Loading Single‐Atom Catalysts for Fuel Cells
03/04/2025 -
This work develops a molten salt strategy for synthesizing single‐atom catalysts at 450 °C via LiCl/KCl‐mediated Fe2+/Zn2+ exchange on nitrogen‐doped carbon substrates. By stabilizing Fe2+...
Pyrolysis-GC/MS differentiates polyesters and detects additives for improved monitoring of textile labeling accuracy and plastic pollution
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Polyesters comprise the greatest proportion of textile fibers and are found in various everyday goods; hence, polyester fibers are a significant source of microplastic pollution and textile waste....
Tracking Dynamics of Supported Indium Oxide Catalysts in CO2 Hydrogenation to Methanol by In Situ TEM
23/03/2025 -
Combining in situ scanning transmission electron microscopy imaging with machine learning‐based image analysis, this study directly visualizes and tracks dynamic restructuring in reducible oxide...
Facile Synthesis of Fe0.64Ni0.36/NiFe2O4/CeO2‐Codoped Bamboo Powders‐Derived Porous Carbon Composites with Optimized Impedance Matching for Enhanced Microwave Absorption Performance
27/02/2025 -
The microstructure and electromagnetic properties of the composites are effectively controlled by adjusting the heat treatment temperature and magnetic components. Benefiting from the multiple loss...
Rapid and Large‐Scale Synthesis of High‐Crystalline Imide Covalent Organic Frameworks Accelerated by Self‐Generated Water
12/02/2025 -
A facile, rapid, scalable, and low‐cost self‐accelerated method to synthesize imide covalent organic frameworks (COFs) is developed. This synthetic method is performed under solvent‐free and...
Lattice‐Strain Engineering of High‐Entropy‐Oxide Nanoparticles: Regulation by Flame Spray Pyrolysis with Ultrafast Quenching
26/01/2025 -
This study introduces a continuous‐flow flame spray pyrolysis method for tuning lattice strain in high‐entropy‐oxide nanoparticles. By varying the cooling rates of quenching, tensile strain...
Hybrid Preceramic Aerogels for Oil and Solvent Cleanup
22/01/2025 -
This study introduces monolithic hybrid aerogels. Despite differing drying methods, materials, processed as polymeric and ceramic‐polymer hybrids, exhibit high porosity (90 vol%) and high...
Biopolymer‐Based Flame Retardants and Flame‐Retardant Materials
08/01/2025 -
This review presents recent advancements in producing sustainable flame‐retardant materials using biopolymers as additive agents, functional coatings, and structural matrices. The focus is on...
Interfacial Water Regulation for Nitrate Electroreduction to Ammonia at Ultralow Overpotentials
08/01/2025 -
A hydroxide regulation strategy is proposed for optimizing the interfacial H2O behavior for accelerating the hydrogenation conversion of nitrate to ammonia at ultralow overpotentials. The...
Transforming Plastics to Single Atom Catalysts for Peroxymonosulfate Activation: Axial Chloride Coordination Intensified Electron Transfer Pathway
05/01/2025 -
A graphene‐based single‐atom catalyst with atomically dispersed FeN4Cl sites (Fe─N/Cl─C) is produced from high‐density polyethylene and applied in peroxymonosulfate (PMS) activation and...
Advanced Catalysts for the Chemical Recycling of Plastic Waste
02/01/2025 -
This review summarizes recent advanced catalysts applied in thermal catalysis, microwave‐assisted catalysis, photocatalysis, electrocatalysis, and enzymatic catalysis reaction systems for the...
In Situ Reconstructed Hydroxyl‐Rich Atomic‐Thin Bi2O2CO3 Enables Ampere‐Scale Synthesis of Formate from CO2 with Activated Water Dissociation
23/12/2024 -
The hydroxyl‐functionalized atomic‐thin bismuth subcarbonate in situ transformed from bismuth hydroxide nanotubes enables highly efficient and durable carbon dioxide electroreduction into...
Highly Efficient Synthesis of α‐Amino Acids via Electrocatalytic C‐N Coupling Reaction Over an Atomically Dispersed Iron Loaded Defective TiO2
12/12/2024 -
The efficient electrocatalytic synthesis of α‐amino acids with a high glyoxylic acid conversion of ≈100% and a glycine selectivity of 80.2% is achieved with an atomically dispersed Fe loaded...
Closing the Loop in the Carbon Cycle: Enzymatic Reactions Housed in MetalâOrganic Frameworks for CO2 Conversion to Methanol
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Abstract The preparation of value-added chemicals from carbon dioxide (CO2) can act as a way of reducing the greenhouse gas from the atmosphere. Industrially significant C1...
In?situ reduced Cu3N nanocrystals enable high?efficiency ammonia synthesis and zinc?nitrate batteries
19/11/2024 -
Nitrate reduction reaction (NO3RR) involves an 8?electron transfer process and competes with the hydrogen evolution reaction process, resulting in lower yields and Faraday efficiency (FE) in the...
Flame?Retarded Poly (Lactic Acid) Containing Phosphating Chitosan
19/11/2024 -
ABSTRACTPoly (lactic acid) (PLA) is a promising thermoplastic aliphatic polyester to replace petroleum?based polymers in many fields. However, its flammability has limited its application in areas...
Fabrication of SiC fibers by combining dry spinning with thermal crosslinking
18/11/2024 -
Abstract Crosslinking is a crucial step to keep fibrous morphology and improve ceramic yield in the fabrication process of SiC fibers. Comparing with the oxygen crosslinking,...
Advances and Challenges in WO3 Nanostructures’ Synthesis
20/11/2024 -
In recent decades, nanoscience has experienced rapid global advancements due to its focus on materials and compounds at the nanoscale with high efficiency across diverse applications. WO3...
Pyrolysis of Hydrothermal Sewage Sludge and Food Waste Digestate for Heavy Metals Stabilization and Ecological Risk Reduction
21/11/2024 -
The application of municipal sewage sludge is often limited by concerns over heavy metal (HM) safety. This study explored the reduction of HM content in hydrothermal sewage sludge (HTS) through...
A Discrete Distributed Activation Energy Model for Cedar and Polyethylene Fast Heating Pyrolysis Kinetics
21/11/2024 -
The pyrolysis of municipal solid waste (MSW) is an efficient, cost-effective, and environmentally beneficial thermochemical treatment method. A macro thermogravimetric analyzer (Macro TGA) was used...
Preparation and Characterization of a Novel Ca-Fe-Si-S Composite for the Simultaneous Stabilization of Heavy Metals in Arsenic Slag
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In this work, a novel Ca-Fe-Si-S composite was prepared from thermal desorption residue through FeSO4 impregnation-pyrolysis. The characteristics and modification process of the composite were...
