Results 241 to 250 of about 109,430 (294)

Topological Materials and Related Applications

Advanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti, Roberto Mantovan, Emanuele Longo, Harold J. W. Zandvliet, Pantelis Bampoulis, Yu Pan, Fan Li, Xia Wang, Payton Downey, Alessandro Molle   +9 more
wiley   +1 more source

Integrating Automated Electrochemistry and High‐Throughput Characterization with Machine Learning to Explore Si─Ge─Sn Thin‐Film Lithium Battery Anodes

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
A closed‐loop, data‐driven approach facilitates the exploration of high‐performance Si─Ge─Sn alloys as promising fast‐charging battery anodes. Autonomous electrochemical experimentation using a scanning droplet cell is combined with real‐time optimization to efficiently navigate composition space.
Alexey Sanin, Jackson K. Flowers, Tobias H. Piotrowiak, Frederic Felsen, Leon Merker, Alfred Ludwig, Dominic Bresser, Helge Sören Stein   +7 more
wiley   +1 more source

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Asymmetric Enamine Catalysis

Chemical Reviews, 2007
The catalysis by primary and secondary amines of electrophilic substitution reactions in the α-position of carbonyl compounds and related reactions via enamine intermediates is called enamine catalysis. To a large degree this chemistry can be considered the catalytic variant of the classical preformed enamine chemistry (Scheme 1) pioneered by Stork. In
Mukherjee, S., Yang, J., Hoffmann, S., List, B.   +3 more
openaire   +5 more sources

Additive Effects on Asymmetric Catalysis

Chemical Reviews, 2016
This review highlights a number of additives that can be used to make asymmetric reactions perfect. Without changing other reaction conditions, simply adding additives can lead to improved asymmetric catalysis, such as reduced reaction time, improved yield, or/and increased selectivity.
Liang, Hong, Wangsheng, Sun, Dongxu, Yang, Guofeng, Li, Rui, Wang   +4 more
openaire   +4 more sources

Asymmetric Heterogeneous Catalysis

Angewandte Chemie International Edition, 2006
AbstractLimited 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, Frank, Glorius, Iris, Escher   +2 more
openaire   +2 more sources

Asymmetric Electrochemical Catalysis

Chemistry – A European Journal, 2019
AbstractAsymmetric electrochemical catalysis, an emerging frontline in asymmetric catalysis and electro‐organic synthesis, is summarized. Representative works are classified, with respect to the external chiral resources, including chiral media, chiral mediator, chiral catalyst, and chiral electrode.
Qifeng Lin, Longji Li, Sanzhong Luo
openaire   +2 more sources

Asymmetric Counteranion‐Directed Catalysis.

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mayer, S., List, B.
openaire   +3 more sources

Heterogeneous asymmetric catalysis

Pure and Applied Chemistry, 2004
Abstract 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
openaire   +4 more sources

Cooperative Asymmetric Cation-Binding Catalysis

Accounts of Chemical Research, 2021
Asymmetric cation-binding catalysis in principle enables the use of (alkali) metal salts, otherwise insoluble in organic solvents, as reagents and effectors in enantioselective reactions. However, this concept has been a formidable challenge due to the difficulties associated with creating a highly organized chiral environment for cations and anions ...
Amol P. Jadhav, Sang Yeon Park, Ji-Woong Lee, Hailong Yan, Choong Eui Song   +4 more
openaire   +3 more sources

Stereodivergence in Asymmetric Catalysis

Journal of the American Chemical Society, 2017
This Perspective presents an overview of catalytic enantioselective transformations that allow convenient access to all stereoisomers of a given product with multiple stereogenic centers. Particular focus is placed on discussion of the concept of stereodivergent dual catalysis and its application in target-oriented synthesis.
Simon Krautwald, Erick M. Carreira
openaire   +2 more sources