Results 71 to 80 of about 44,999 (295)

Engineering Oxygen‐Terminated Hexagonal MBene for Accelerated Lithium Migration and Exceptional Lithium‐Ion Battery Performance

Advanced Science, EarlyView.
The synthesis of ultrathin Ti‐based 2D hexagonal transition metal borides (TiBTx h‐MBene) via ZnCl2 molten salt and the formed disorderly low‐boiling‐point Zn‐In intermediate, followed by TBAOH delamination. The delaminated structure, with O‐ and Cl‐terminations, improves Li‐ion transport, achieving 530 mAh g−1 at 0.1 A g−1 and 120 mAh g−1 at 10 A g−1,
Qing Shen, LeYang Wang, Pengjie Jiang, Jinming Wang, Yaxin Di, Hui Mei, Junjie Wang, Laifei Cheng   +7 more
wiley   +1 more source

Preparo da para-cloroanilina: um experimento simples, rápido e barato Preparation of para-cloroanilina: a simple, fast and inexpensive experiment

Química Nova, 2008
Experiments simple, short and efficient for experimental disciplines in undergraduate courses in Chemistry are an excellent opportunity for students to consolidate the learning of theoretical concepts in classical chemical transformations.
Renato Saldanha Bastos, Andréa Sousa da Cunha, Lucyane Costa da Silva, Carina Cantelle Pacheco de Oliveira, Cláudia M. Rezende, Angelo C. Pinto   +5 more
doaj   +1 more source

Interplay of Backbone Conformation, Morphology and Thermoelectric Properties of Benzodifuranone‐Isatin Acceptor Polymers

Advanced Electronic Materials, EarlyView.
Modification of polymer backbone via halogenation and comonomer selection leads to conjugated backbones of different stereoelectronic properties, thin film morphologies, and electrical characteristics. The interplay of conformational isomerism, coplanarity, backbone curvature, backbone orientation, and ordering in thin films, electrical conductivity ...
Diego R. Hinojosa, Nathan J. Pataki, Francesca Pallini, Guillaume Freychet, Andreas Erhardt, Kevin Schuller, Selina Olthof, Klaus Meerholz, Christopher R. McNeill, Mario Caironi, Florian Günther, Michael Sommer   +11 more
wiley   +1 more source

EDA Complex‐Driven Desaturation of Heterocyclic Carbonyl Compounds Enabled by HFIP

Angewandte Chemie, EarlyView.
In this work, we report a novel light‐mediated desaturation strategy enabled by electron donor–acceptor complex formation. DFT and mechanistic studies reveal that the reaction proceeds via single‐electron transfer, hydrogen atom transfer, and base‐mediated deprotonation sequentially with pyridinium salt serving dually as oxidant and base, and ...
Rakesh Maiti, Robin Cauwenbergh, Aritra Nath, Ana B. R. Guimarães, Yuman Qin, Feliu Maseras, Shoubhik Das   +6 more
wiley   +2 more sources

Treatment of Alcohols with Tosyl Chloride Does Not always Lead to the Formation of Tosylates

Molecules, 2011
Treatment of substituted benzyl alcohols with tosyl chloride resulted in the formation of the corresponding chlorides, not the usual tosylates. A series of experiments demonstrated that it was possible to predict whether chlorination or tosylation would ...
Chuanmin Qi, Yurong Chen, Man Feng, Xiao Wang, Rui Ding, Jingli Xu, Yong He   +6 more
doaj   +1 more source

All‐Solution Processed OFETs from Non‐Chlorinated Solvents Based on New Isoindigo‐Based Conjugated Polymer

Advanced Electronic Materials, EarlyView.
The solution‐coating of a new isoindigo‐based conjugated polymer is systematically tuned to achieve high charge carrier mobility in OFETs. It is shown that solution‐shearing from high boiling point solvents yields aligned semiconducting thin films with optimized OFET characteristics.
Katherina Haase, Jonathan Perez Andrade, Mike Hambsch, Vithyasaahar Sethumadhavan, Waner He, Tsuyoshi Michinobu, Prashant Sonar, Stefan C. B. Mannsfeld   +7 more
wiley   +1 more source

Electrochemical ⍺‐C─H Functionalization of Nitramines for Accessing Bifunctional Energetic Heterocycles

Angewandte Chemie, EarlyView.
An electrochemical α‐C─H functionalization of nitramines enables the synthesis of molecules containing bifunctional energetic heterocycles with promising properties. A telescoped, HNO3‐free sequence involving nitration and azolation steps offers a safer, modular, and scalable platform for the synthesis of energetic compounds.
Wan‐Chen Cindy Lee, Luiz F. T. Novaes, Rojan Ali, Thomas Wirth, Song Lin   +4 more
wiley   +2 more sources

Recent Progress in Quantum Dot Light‐Emitting Diodes: Degradation Mechanisms and Strategies for Improving Device Stability and Reliability

Advanced Electronic Materials, EarlyView.
Although holding great promise for next‐generation displays, quantum dot light‐emitting diodes (QLEDs) face challenges in operational stability and shelf‐storage consistency. This review systematically summarizes recent advances in understanding complex degradation mechanisms during operation as well as storage and strategies to enhance device ...
Wenxin Lin, Bangxiong Kang, Paul W. M. Blom, Quan Niu, Yuguang Ma   +4 more
wiley   +1 more source

Flow‐Enabled, Modular Access to α,α‐Difluoromethylene Amines

Angewandte Chemie, EarlyView.
We report a safe and scalable flow‐based strategy for the on‐demand generation of NCF2R anions using a packed‐bed microreactor containing CsF. This protocol enables the late‐stage installation of the CF2 group under mild conditions leveraging three points of diversification, allowing efficient access to a broad range of NCF2R scaffolds.
Dmitrii Nagornîi, Pietro Ronco, Khadijah Anwar, Nikolaos Kaplaneris, James J. Douglas, Timothy Noël   +5 more
wiley   +2 more sources

Comparative thermodynamic assessment of pyroprocessing and chlorination for the treatment of LWR spent nuclear fuel

Nuclear Engineering and Technology
The disposal burden of spent nuclear fuel (SNF) can be reduced by processing it to separate and collect constituent nuclides based on their characteristics.
Jin-Mok Hur, Hunsuk Im, Chang Hwa Lee
doaj   +1 more source