Results 91 to 100 of about 717,910 (299)

Recent Advances in the Synthesis of 2-Imidazolines and Their Applications in Homogeneous Catalysis

open access: yes, 2009
As an important class of heterocyclic scaffolds. 2-imidazolines have attracted the attention from the chemists interested in natural products, pharmaceutical chemistry, synthetic organic chemistry. coordination chemistry, and homogeneous catalysis.
Da‐Ming Du   +4 more
core   +1 more source

Homogeneous and Heterogeneous Catalysis Impact on Pyrolyzed Cellulose to Produce Bio-Oil

open access: yes, 2020
Effectively utilizing catalytic pyrolysis to upgrade bio-oil products prepared from biomass has many potential benefits for the environment. In this paper, cellulose (a major component of plants and a biomass model compound) is pyrolyzed and catalyzed ...
Jeffrey S. Cross, Siyi Li, Shuo Cheng
core   +1 more source

Photo‐Degradable Polyester Networks and Multi‐Photon Printed Objects Based on Cyclic Ketene Acetals

open access: yesAdvanced Functional Materials, EarlyView.
The current work introduces a photoreversible polyester network derived from radical ring‐opening polymerization of cyclic ketene acetals. It combines photoreversible cross‐linking with initiator‐free multi‐photon printing. Reversible network formation, tunable mechanical properties, and selective degradation highlight its potential as a versatile ...
Till Meissner   +5 more
wiley   +1 more source

Electron‐Deficient Linkers Enhance H2O2 Electrosynthesis in Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Linker π‐conjugation modulates the electronic state of the Ni–N4 centers and their interaction with the key *OOH intermediate while preserving the primary coordination motif. NiPc‐PTDA delivers an H2O2 selectivity of 92% and a production rate of 34.8 mol gcat−1 h−1, highlighting linker electronic properties as a molecular design parameter for NiPc ...
Houting Xie   +7 more
wiley   +1 more source

Synthesis, Immobilization and Catalytic Activity of a Copper(II) Complex with a Chiral Bis(oxazoline)

open access: yesMolecules, 2014
A chiral bis(oxazoline) bearing CH2OH groups was synthesized from a commercial bis(oxazoline) and characterized by 1H- and 13C-NMR, high resolution ESI-mass spectrometry and FTIR. The corresponding copper(II) complex was immobilized onto the surface of a
Liliana Carneiro   +4 more
doaj   +1 more source

Decomposition pathways of homogeneous catalysts

open access: yes, 2001
Homogeneous catalysts can decompose in a variety of ways: metal deposition, ligand decomposition, reaction with impurities, dimer formation, and reaction of the metal center with the ligand.
van Leeuwen, P.W.N.M.   +1 more
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

Chemocatalytic Conversion of Cellulose into Key Platform Chemicals

open access: yesInternational Journal of Polymer Science, 2018
Chemocatalytic transformation of lignocellulosic biomass to value-added chemicals has attracted global interest in order to build up sustainable societies.
Guangbi Li   +4 more
doaj   +1 more source

Catalytic Organic Transformations Mediated by Actinide Complexes

open access: yesInorganics, 2015
This review article presents the development of organoactinides and actinide coordination complexes as catalysts for homogeneous organic transformations.
Isabell S. R. Karmel   +2 more
doaj   +1 more source

THE ELUCIDATION OF MECHANISMS IN HOMOGENEOUS CATALYSIS [PDF]

open access: yesComments on Inorganic Chemistry, 2009
After a reminder of the definition of common terms used in catalysis and reaction mechanisms, different chapters highlight the various approaches used for the elucidation of catalytic mechanisms, each with its own advantages and limitations. Kinetics investigations define the rate law and provide information on certain features of the reaction pathway ...
openaire   +2 more sources

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