Economía Circular

 

Economía Circular

Synthesis, Characterization, and Thermal Pyrolysis Mechanism of Resorcinol?Formaldehyde Resin?Containing Phenylboronic Acid
19/07/2024 - In this study, a resin is synthesized from resorcinol and formaldehyde in the presence of phenylboronic acid. The 80?°C/4?h curing method is the most reasonable for energy savings. While the char...
Achieving High Strength and Superior Wear?Resistant Properties in TiH2 Matrix Reinforced with Graphene Nanoplates
18/07/2024 - Low?cost TiC/Ti composites with high strength?ductility and superior abrasive resistance are fabricated using TiH2 powder and graphene as raw materials via spark plasma sintering and hot rolling...
Liquid Gallium?Assisted Pyrolysis of MOF Affording CNT Non?Hollow Frameworks in High Yields for High?Performance Sodium?Ion Battery Anode
18/07/2024 - Liquid gallium?assisted pyrolysis and subsequent acid treatment are cleverly used to obtain a high yield of O?rich carbon nanotube (CNT) non?hollow framework (NOCNTF?15) at relatively low...
Preparation of catalyst for CO2 hydrogenation reaction based on the idea of element sharing and preliminary exploration of catalytic mechanism
17/07/2024 - Under the background of the continuous rise of CO2 annual emissions, the development of CO2 capture and utilization technology is urgent. This study focuses on improving the catalytic capacity of...
Sustainable methanol production from carbon dioxide: advances, challenges, and future prospects
04/07/2024 - The urgent need to address global carbon emissions and promote sustainable energy solutions has led to a growing interest in carbon dioxide (CO2) conversion technologies. Among these, the...
Effective elimination of Hg(II) from water bodies with acid-modified magnetic biomass spent coffee grounds: conditional optimization and application
29/06/2024 - To maximize the efficiency of biomass waste utilization and waste management, a novel acid-modified magnetic biomass spent coffee grounds (NiFe2O4/SCG) was obtained by pyrolysis at 473 K and...
Probing Basal and Prismatic Planes of Graphitic Materials for Metal Single Atom and Subnanometer Cluster Stabilization
25/06/2024 - Supported metal single atom catalysis is a dynamic research area in catalysis science combining the advantages of homogeneous and heterogeneous catalysis. Understanding the interactions between metal...
Ecological consequences of biochar and hydrochar amendments in soil: assessing environmental impacts and influences
20/06/2024 - Anthropogenic activities have caused irreversible consequences on our planet, including climate change and environmental pollution. Nevertheless, reducing greenhouse gas (GHG) emissions and...
A critical review on the influence of operating parameters and feedstock characteristics on microwave pyrolysis of biomass
18/06/2024 - Biomass pyrolysis is the most effective process to convert abundant organic matter into value-added products that could be an alternative to depleting fossil fuels. A comprehensive understanding...
Bridging Homogeneously and Heterogeneously Catalyzed Higher?Alcohol Synthesis via Cobalt?Based Catalysts
14/06/2024 - Industrial?scale higher?alcohol synthesis (HAS) is highly desired, but deeper insights into reaction mechanisms and active sites are still needed. This review summarizes well?explored Co?based...
RuPHOX?Ru Catalyzed Asymmetric Cascade Hydrogenation of 3?Substituted Chromones for the Synthesis of Corresponding Chiral Chromanols
14/06/2024 - An efficient RuPHOX?Ru catalyzed asymmetric cascade hydrogenation of 3?substituted chromones has been achieved under mild reaction conditions, affording the corresponding chiral 3?substituted...
Municipal Solid and Plastic Waste Co?pyrolysis Towards Sustainable Renewable Fuel and Carbon Materials: A Comprehensive Review
16/06/2024 - This review tackles the challenges of worldwide waste management, focusing on renewable and sustainable fuels and waste recycling through the exploration of co?pyrolysis as an innovative method. It...
Pyrolytic urban mining of waste printed circuit boards: an enviro-economic analysis
17/06/2024 - E-waste, a global environmental concern resulting from supply chain inefficiency, also offers the opportunity to recover valuable materials, including general and rare earth metals. Waste printed...
Synthesis and Application of Robust Spiro [Fluorene?9] CAAC Ruthenium Alkylidene Complexes for the „One?Pot“ Conversion of Allyl Acetate to Butane?1,4?diol
12/06/2024 - A series of a novel CAAC ligands featuring a spiro?fluorene group have been synthesized and complexed with ruthenium alkylidenes, yielding the corresponding Hoveyda?type derivatives as a new family...
The methods for improving the biodegradability of oily sludge: a critical review
13/06/2024 - Biological degradation method, as an environmentally friendly, low-carbon, and clean pollution treatment technology, is widely used for the harmless disposal of oily sludge. The biodegradability...
Bridging dehydrogenation and hydrogenation in heterogeneous catalysis: A demonstration of a unified catalytic approach
08/06/2024 - In the pursuit of enhancing the applications of hydrogen as an energy carrier, this research delved into the utilization of a singular hybrid catalyst capable of performing both dehydrogenation and...
Unlocking the potential of low concentration biodiesel blended with green synthesized novel carbon black nanoparticles from Ricinus communis outer shell: An experimental study under different compression ratios and EGR concentrations
09/06/2024 - The outer prickly shells of the Ricinus communis (castor plant) have intrigued researchers interested in the synthesis of carbon black (CB) nanoparticles because of their excellent biocompatibility,...
Catalytic pyrolysis of torrefied biomass with molecular sieve catalysts to produce hydrocarbon rich biocrude
09/06/2024 - The downstream processing of biocrudes obtained from direct biomass pyrolysis poses significant challenges due to stability issues, necessitating costly upgrading for further coprocessing with...
Efficient extraction of metals (Fe, Zn, Pb) from hazardous jarosite using ionic liquid and waste-derived solvents
01/06/2024 - The present study evaluated a solvo-metallurgical technique for metal extraction from industrial solid waste (jarosite) using ionic liquids (ILs) and waste-derived solvents. The jarosite contains...
Co-pyrolysis of fly ash with sewage sludge for PCDD/F removal
31/05/2024 - Fly ash generated from municipal waste incineration (MWI) contains various toxic substances, and it has to be properly treated before disposal or reuse. Water washing and thermal pyrolysis can...
Pilot Scale Pyrolysis and Simulation of Plastic Waste into a Value?Added Product: An Integrated Approach
27/05/2024 - Discarded plastic as a waste has grown uncontrollably worldwide, most of it ending up as landfill. To convert plastic waste to value?added product, authors in this study highlighted the production of...