Results 201 to 210 of about 34,598 (256)
Advanced Science, EarlyView.A multifunctional injectable microsphere system is fabricated via UV‐assisted microfluidic cross‐linking, integrating nanozyme‐based ROS scavenging, sustained dexamethasone release, and stem cell delivery. Upon IA injection, the microspheres adapt to joint stress, suppress inflammation, and promote cartilage regeneration, offering a minimally invasive ...
Xiaochen Feng +10 more
wiley +1 more source
Advanced Science, EarlyView.Cryo‐EM analysis reveals an asymmetric MMOH–MMOB complex with distinct protomers, where MMOB binding triggers structural rearrangements from the surface to the active site. This conformational asymmetry shortens the Fe···Fe distance to 2.7 Å in one protomer, forming a geometry suitable for O2 activation and supporting a sequential catalytic mechanism ...
Yunha Hwang +9 more
wiley +1 more source
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2022
This chapter explains how the chemical industry relies on the use of efficient catalysts to facilitate a wide variety of transformations, noting that the majority of these catalysts involve reactions at surfaces. It describes how certain concepts relating to adsorption and desorption can be extended to provide a way to model surface reactions.
Peter Atkins +2 more
+4 more sources
This chapter explains how the chemical industry relies on the use of efficient catalysts to facilitate a wide variety of transformations, noting that the majority of these catalysts involve reactions at surfaces. It describes how certain concepts relating to adsorption and desorption can be extended to provide a way to model surface reactions.
Peter Atkins +2 more
+4 more sources
2017
Heterogeneous catalysts are plentiful in the chemical industry. In this chapter, a short overview will be given on the steps needed to convert a reactant into a product over a heterogeneous catalyst. In addition, an introduction will be given on the way a catalyst assists in the making and breaking of chemical bonds.
Leon Lefferts +2 more
openaire +3 more sources
Heterogeneous catalysts are plentiful in the chemical industry. In this chapter, a short overview will be given on the steps needed to convert a reactant into a product over a heterogeneous catalyst. In addition, an introduction will be given on the way a catalyst assists in the making and breaking of chemical bonds.
Leon Lefferts +2 more
openaire +3 more sources
Asymmetric Heterogeneous Catalysis
Angewandte Chemie International Edition, 2006AbstractLimited natural resources and an increasing demand for enantiomerically pure compounds render catalysis and especially heterogeneous asymmetric catalysis a key technology. The field has rapidly advanced from the initial use of chiral biopolymers, such as silk, as a support for metal catalysts to the modern research areas.
Maja, Heitbaum +2 more
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Heterogeneous Catalysis: Introduction
2013Comprehensive Inorganic Chemistry II reviews and examines topics of relevance to today’s inorganic chemists. Covering more interdisciplinary and high impact areas, Comprehensive Inorganic Chemistry II includes biological inorganic chemistry, solid state chemistry, materials chemistry, and nanoscience. The work is designed to follow on, with a different
Niemantsverdriet, J., Schlögl, R.
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Heterogeneous asymmetric catalysis
Pure and Applied Chemistry, 2004Abstract Examples of enantioselective catalysts, including homogeneous supported catalysts and biphasic liquid/liquid, are described and compared. In the case of asymmetric hydride transfer, polythiourea was proven to be more efficient for ruthenium-catalyzed reduction of arylketones, although the iridium complexes gave rise to higher ee
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2013
Contents Mechanisms of heterogeneous catalysis 931 Unimolecular reactions 932 Surface-catalysed unimolecular decomposition 932 The Langmuir-Hinshelwood mechanism 932 Writing a rate law ...
Peter Atkins +2 more
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Contents Mechanisms of heterogeneous catalysis 931 Unimolecular reactions 932 Surface-catalysed unimolecular decomposition 932 The Langmuir-Hinshelwood mechanism 932 Writing a rate law ...
Peter Atkins +2 more
openaire +2 more sources
1991
Abstract Heterogeneous catalytic systems have seemed a natural and fertile field for non-linear behaviour and only solution-phase reactions have been more widely studied. The oxidation of carbon monoxide over many metal surfaces in particular seems to have been the subject of deep investigations perhaps because of its technological as ...
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Abstract Heterogeneous catalytic systems have seemed a natural and fertile field for non-linear behaviour and only solution-phase reactions have been more widely studied. The oxidation of carbon monoxide over many metal surfaces in particular seems to have been the subject of deep investigations perhaps because of its technological as ...
openaire +1 more source