Results 81 to 90 of about 3,360 (286)

Mechanochemical synthesis of carboxylic acids and amides: Nickel-catalyzed direct carbonylation of aryl halides using dry ice

Journal of CO2 Utilization
Carboxylic acids and their derivatives have great importance in synthetic organic chemistry. The development of an eco-friendly and efficient approaches for the synthesis of carboxylic acid derivatives using readily available gaseous CO2 as a C1 synthon ...
Satenik Mkrtchyan, Jiří Zapletal, Dhanasekar Elumalai, Vishal B. Purohit, Ronak V. Prajapati, Vaibhav D. Prajapati, Gabriela Addová, Juraj Filo, Björn Bielec, Oleksandr Shalimov, Mika Sillanpää, Dmitry Katayev, Viktor O. Iarosheko   +12 more
doaj   +1 more source

New bio-nanocomposites based on iron oxides and polysaccharides applied to oxidation and alkylation reactions

Beilstein Journal of Organic Chemistry, 2017
Polysaccharides from natural sources and iron precursors were applied to develop new bio-nanocomposites by mechanochemical milling processes. The proposed methodology was demonstrated to be advantageous in comparison with other protocols for the ...
Daily Rodríguez-Padrón, Alina M. Balu, Antonio A. Romero, Rafael Luque   +3 more
doaj   +1 more source

Disorder‐Driven Fast Na+ Transport: From Crystalline to Amorphous Networks in the Mixed‐Anion NaTaOxCl6−2x Oxychlorides

Advanced Energy Materials, EarlyView.
Oxygen substitution in NaTaOxCl6‐2x drives structural evolution from isolated [TaCl6]– octahedra, through oxygen‐bridged [Ta2OCl10]2– dimers, toward extended trans‐[TaO2Cl4]3– chain‐like arrangements. At intermediate compositions, zero‐dimensional corner‐sharing motifs are proposed to create a flexible, disordered framework that peaks ionic ...
Justin Leifeld, Abigail C. Parsons, Alexandra Morscher, Xabier Martinez de Irujo‐Labalde, Marvin A. Kraft, Oskar G. Soulas, Bibek Samanta, Wiebke Zielasko, Neelam Yadav, Kyra Strotmann, Niina Jalarvo, Bruno V. M. Rodrigues, Adam Slabon, Philipp Adelhelm, Michael Ryan Hansen, David O. Scanlon, Wolfgang G. Zeier, Alexander G. Squires   +17 more
wiley   +1 more source

Controlling Exsolution Dynamics in High‐Entropy Oxides for Highly Active and Selective Acetylene Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Li+‐induced lattice distortion, valence variation, and local charge redistribution in a rock salt‐structured high‐entropy oxide enable controlled metal exsolution, altering the Cu–Ni–Co exsolution sequence and delivering a surface Cu0‐enriched catalyst with exceptional activity and ethylene selectivity for acetylene semi‐hydrogenation.
Hailing Yu, Caiqi Wang, Kevin M. Siniard, Qingju Wang, Yuanpeng Zhang, J. Anibal Boscoboinik, Xiao Tong, Eliseo Perez Gomez, Shuai Yuan, Arun S. Asundi, Oliver Mueller, Murillo Longo Martins, Yongqiang Cheng, Michael Richard Koehler, De‐en Jiang, Zili Wu, Zhenzhen Yang, Sheng Dai   +17 more
wiley   +2 more sources

Mechanochemical synthesis, phase transformation and surface functionalization of metal oxides [PDF]

, 2020
Die hochenergetische Kugelvermahlung wurde genutzt um Synthesen, Strukturveränderungen und Oberflächenfunktionalisierungen im Bereich anorganischer Oxide durchzuführen.
Becker, Dennis
core   +1 more source

Unveiling the High‐Voltage Reactivity and Gas Evolution With Aluminum‐Based Chloride and Oxychloride Catholytes in Solid‐State Sodium Batteries

Advanced Energy Materials, EarlyView.
The work examines the electrochemical and interfacial behaviors of crystalline NaAlCl4 and amorphous Na–Al–oxychloride solid electrolytes with NaNi0.5Mn0.5O2 cathodes. Operando gas evolution and ToF‐SIMS analyses highlight that pure chloride solid electrolytes offer greater interfacial stability and safety compared to the oxychloride solid electrolytes
Erick Ruoff, Seth Reed, Arumugam Manthiram   +2 more
wiley   +1 more source

Silicon‐Based Anodes for Sulfide Solid‐State Batteries: Failure Mechanisms and Multiscale Design Strategies

Advanced Energy Materials, EarlyView.
Silicon anodes in sulfide SSBs face coupled electrochemo‐mechanical failure by interface instability. This review examined recent advances and proposed mitigation strategies via material‐, electrode/interface‐, and cell‐level‐ engineering. We further evaluate scalable synthesis of sulfide SEs.
Murugesan Karuppaiah, JaeWook Seo, SeEun Park, Seung Hyeok Chu, Jung Kyoo Lee   +4 more
wiley   +1 more source

Sputtering Mechanism of an Unsintered Organic–Inorganic Sputtering Target for Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
An unsintered MAPbI3 sputtering target fabricated via a mechanochemical route enables large‐area vacuum deposition of perovskite absorber layers, while revealing an ion–photon coupled decomposition mechanism that governs target erosion and film composition under RF plasma exposure.
Doha Lim, Rira Kang, Yewon Lee, Hyun Hwi Lee, Mee‐Yi Ryu, Muntae Hwang, So‐Yeon Ju, Fang Luo, Byunghong Lee, Han‐Ki Kim   +9 more
wiley   +1 more source

Mechanochemical Degradation of Caffeine and Diclofenac Using Biochar of Fique Bagasse in the Presence of Al: Monitoring by Mass Spectrometry

, 2023
Much research has been carried out to remove emerging contaminants using diverse materials. Furthermore, studies related to pollutant degradation have increased over the past decade.
Liliana Giraldo (8854286), Chiara Carazzone, Gerson-Dirceu López (17138494), Liliana Giraldo, Gerson-Dirceu López, Juan Carlos Moreno-Piraján, Yaned Milena Correa-Navarro, Juan Carlos Moreno-Piraján (8854283), Yaned Milena Correa-Navarro (14313221), Chiara Carazzone (2426962)   +9 more
core   +1 more source

Mechanisms of Alkali Ionic Transport in Amorphous Oxyhalides Solid State Conductors

Advanced Energy Materials, EarlyView.
Large‐scale machine learning‐based molecular dynamics simulations are used to investigate isovalent amorphous oxyhalides, revealing a remarkable chemically independent ionic conductivity. A rigorous analysis of alkali residence times across different metal–anion environments identifies divalent anions as key diffusion bottlenecks.
Luca Binci, KyuJung Jun, Bowen Deng, Gerbrand Ceder   +3 more
wiley   +1 more source