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Mostrando ítems 2041-2050 de 2272
Artículo
A generalized interface reaction kinetic model for describing heterogeneous processes driven by contracting mechanisms
(Springer, 2024-01-30)
The correct determination of the kinetic model and the kinetic parameters that describe a heterogeneous process is key to accurately predicting its progress within a wide range of conditions, which is one of the main ...
Artículo
Ca-based materials derived from calcined cigarette butts for CO2 capture and thermochemical energy storage
(Science Press, 2023-07-27)
Cigarette butts (CBs) are one of the most common types of litter in the world. Due to the toxic substances they contain, the waste generated poses a harmful risk to the environment, and therefore there is an urgent need ...
Artículo
CO2 Conversion via Low-Temperature RWGS Enabled by Multicomponent Catalysts: Could Transition Metals Outperform Pt?
(Springer, 2024-02-26)
In the context of CO2 valorisation, the reverse water–gas shift reaction (RWGS) is gathering momentum since it represents a direct route for CO2 reduction to CO. The endothermic nature of the reaction posses a challenge ...
Artículo
Flash Joule Heating-Boro/Carbothermal Reduction (FJH-BCTR): An approach for the instantaneous synthesis of transition metal diborides
(Elsevier, 2024-01-09)
Transition metal diborides (TMB2), such as ZrB2 and HfB2, are a class of ultra-high-temperature ceramics (UHTCs) that have attracted considerable attention due to their performance in extreme environments. Their implementation ...
Artículo
Investigating the room- and cryo-milling impact in lignocellulosic biomass and its consequence over pyrolysis and oxidative treatments
(Elsevier, 2024-01-12)
The lignocellulosic biomass recalcitrance is the uppermost factor for the utilization of this renewable resource. The development of new pre-treatments, addressed to enhance performance in lignocellulosic biomass conversion ...
Artículo
Nickel-based cerium zirconate inorganic complex structures for CO2 valorisation via dry reforming of methane
(Science Press, 2023-01-16)
The increasing anthropogenic emissions of greenhouse gases (GHG) is encouraging extensive research in CO2 utilisation. Dry reforming of methane (DRM) depicts a viable strategy to convert both CO2 and CH4 into syngas, a ...
Artículo
Mechanistic insights into methanol carbonylation to methyl acetate over an efficient organic template-free Cu-exchanged Mordenite
(2023-11-15)
Currently, acetic acid is produced via the carbonylation reaction of methanol with the main route entailing the use of homogeneous noble metal-based catalysts, which has certain limitations, including the use of polluting ...
Artículo
Nitrous oxide activation by picoline-derived Ni-CNP hydrides
(Royal Society of Chemistry, 2024-01-10)
Oxygen atom transfer (OAT) from N2O to the Ni–H bond of protonresponsive picoline-derived CNP nickel complexes has been investigated both experimentally and theoretically. These Ni–CNP complexes efficiently catalyse the ...
Artículo
Efficient and Sustainable Synthesis of Zinc Salt-Dependent Polycrystal Zinc Oxide Nanoparticles. Comprehensive Assessment of Physicochemical and Functional Properties
(2076-3417, 2024-02)
This research involved synthesizing zinc salt-dependent zinc oxide nanoparticles (ZS-ZnO-NPs) using different zinc salts (ZnCl₂, ZnSO₄·H₂O, Zn(CH₃COO)₂·2H₂O, and Zn(NO₃)₂·6H₂O) and plant extracts of Phoenix dactylifera L. ...
Ponencia
Semantic Geodemography and Urban Interoperability
(Springer, 2012)
Nowadays there exists an increasing interest on the use of the information collected by cities coming from different resources as data with dynamic nature like the one provided by sensor networks, as static data associated ...