Results 161 to 170 of about 2,241,134 (405)

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Azide–alkyne cycloaddition reactions in water via recyclable heterogeneous Cu catalysts: reverse phase silica gel and thermoresponsive hydrogels

, 2018
Minkyung Lim, Heejin Lee, Minseok Kang, Won-Cheol Yoo, Hakjune Rhee   +4 more
openalex   +2 more sources

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Optimization of a heterogeneous Pd–Cu/zeolite Y Wacker catalyst for ethylene oxidation

, 2020
Jerick Imbao, Jeroen A. van Bokhoven, Maarten Nachtegaal   +2 more
openalex   +2 more sources

Multicomponent synthesis of pyrano-pyrazolo-pyridones by a bimetallic cobalt-cadmium magnetic catalyst

Scientific Reports
A novel series of pyranopyrazolopyridone derivatives was synthesized via multicomponent reaction involving 4-hydroxy-6-methylpyridin-2-ones, aromatic aldehydes, and pyrazolone.
Mahmood Kamali, Akbar Mobaraki, Zahra Shirpak   +2 more
doaj   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

HETEROGENEOUS CHROMIUM CATALYSTS

, 2005
The present invention relates to a heterogeneous chromium catalyst system for the polymerisation of ethylene and/or alpha olefins prepared by the steps of: (a) providing a silica-containing support, (b) treating the silica-containing support with a chromium compound to form a chromium-based silica-containing support, (c) activating the chromium-based ...
TOTAL PETROCHEMICALS RES FELUY, BODART PHILIPPE, NENU CRISTINA, WECKHUYSEN BERT   +3 more
openaire   +3 more sources

Fenton oxidation of Diamine Blue 3B using heterogeneous catalyst based on hydroxyapatite nanoparticles

, 2018
Atena Dehghanpour Farashah, Saeedeh Hashemian, Fatemeh Tamaddon   +2 more
openalex   +1 more source

Additively manufactured geopolymer structured heterogeneous catalysts for biodiesel production

, 2021
Renata Botti, M.D.M. Innocentini, Thais A. Faleiros, Murilo F. Mello, Danilo Luiz Flumignan, Letícia Karen dos Santos, Giorgia Franchin, Paolo Colombo   +7 more
openalex   +2 more sources

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source