Results 61 to 70 of about 132,024 (337)

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

17O-EPR determination of the structure and dynamics of copper single-metal sites in zeolites

Nature Communications, 2021
The identification of catalytically active sites with atomic-scale precision occupies a central place in the theory and practice of heterogeneous catalysis.
Paolo Cleto Bruzzese, Enrico Salvadori, Stefan Jäger, Martin Hartmann, Bartolomeo Civalleri, Andreas Pöppl, Mario Chiesa   +6 more
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Intermolecular addition reactions of N-alkyl-N-chlorosulfonamides to unsaturated compounds

Beilstein Journal of Organic Chemistry, 2015
N-Alkyl-N-chlorosulfonamides add to alkenes under copper(I) catalysis. In reactions of styrene derivatives with terminal double bonds the addition products were obtained in excellent yield and high regioselectivity.
Gerold Heuger, Richard Göttlich
doaj   +1 more source

A general synthesis of azetidines by copper-catalysed photoinduced anti-Baldwin radical cyclization of ynamides

Nature Communications, 2022
The construction of four-membered rings via a 4-exo-dig cyclization was originally theorized to be unfavourable and only recently shown in sparse examples.
Clément Jacob, Hajar Baguia, Amaury Dubart, Samuel Oger, Pierre Thilmany, Jérôme Beaudelot, Christopher Deldaele, Stefano Peruško, Yohann Landrain, Bastien Michelet, Samuel Neale, Eugénie Romero, Cécile Moucheron, Veronique Van Speybroeck, Cédric Theunissen, Gwilherm Evano   +15 more
doaj   +1 more source

An In Situ Surface-Enhanced Infrared Absorption Spectroscopy Study of Electrochemical CO2 Reduction: Selectivity Dependence on Surface C-Bound and O-Bound Reaction Intermediates

, 2019
The CO_{2} electro-reduction reaction (CORR) is a promising avenue to convert greenhouse gases into high-value fuels and chemicals, in addition to being an attractive method for storing intermittent renewable energy.
Andreussi, Oliviero, Giordano, Livia, Hwang, Jonathan, Katayama, Yu, Marzari, Nicola, Nattino, Francesco, Rao, Reshma R., Shao-Horn, Yang   +7 more
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Recent Advances in Enhancing Functionalization of Atomically Precise Copper Hydride Clusters

Aggregate
Copper hydride clusters have become especially fascinating in the field of functional cluster‐based materials due to the various compositions and architectures as well as intriguing properties especially hydride‐related applications.
Miao‐Miao Zhang, Ting‐Ting Liang, Chong Zhang, Huanhuan Zhang, Yu‐Fan Li, Yuanyuan Li, Shuang‐Quan Zang   +6 more
doaj   +1 more source

Synthesis of Block Ceramic Catalyst Carriers Based on Natural Raw Materials and Metallurgical Slags

Chemical Engineering Transactions, 2019
For ecological catalysis, including the purification of exhaust gases, the most promising are block catalysts. The synthesis of ceramic block catalyst carrier was carried out based on classical methods of powder metallurgy, in which moulding compounds ...
Meruyert Erkinovna Utegenova, Marzhan Anuarbekovna Sadenova, Jiri Jaromir Klemes   +2 more
doaj   +1 more source

Exposure of metallic copper surface on Cu-Al2O3-carbon catalysts [PDF]

, 1970
The bifunctional nature of Cu---Al2O3-on-carbon catalysts, used in the direct catalytic conversion of ethanol to ethyl acetate, prompted an examination of the dispersion of Cu on the composite catalyst. For this, the N2O-method of Osinga et al.
Menon, P.G., Prasad, J.
core   +4 more sources