Results 51 to 60 of about 80,245 (335)

Synthesis and Host–Guest Properties of Acyclic Pillar[n]naphthalenes

Frontiers in Chemistry, 2019
Here we report a new class of synthetic receptors, acyclic pillar[n]naphthalene (n = 2–4, Dimer, Trimer, and Tetramer) oligomers, which are made up of 2,3-diethoxynaphthalene units linked by methylene bridges at the 1- and 4-positions.
Yuanyin Jia, Ming Dong, Bin Wang, Chunju Li, Chunju Li, Chunju Li   +5 more
doaj   +1 more source

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

Advanced Materials, EarlyView.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis, Subhajit Dutta, Saqib Kamal, Sergio Gómez‐Graña, Isabel Pastoriza‐Santos, Stefan Wuttke, Lakshminarayana Polavarapu   +6 more
wiley   +1 more source

Light‐Harvesting Nanomaterials Based on Dyes for Energy Transfer and Amplified Biosensing

Advanced Materials, EarlyView.
Light harvesting (LH) in plants inspires researchers to develop artificial LH nanomaterials. Here, LH nanomaterials based on organic dyes are reviewed, considering fundamental challenges on aggregation‐caused quenching, excitation energy transfer, and exciton migration length.
Andrey S. Klymchenko, Deep Sekhar Biswas, Pascal Didier   +2 more
wiley   +1 more source

High‐Energy‐Density Aqueous Zinc‐Ion Batteries: Recent Progress, Design Strategies, Challenges, and Perspectives

Advanced Materials, EarlyView.
Strategies achieving high‐energy‐density aqueous zinc‐ion batteries are summarized and analyzed from both their separate advancements and the integrated effectiveness in this review. Then, perspectives are given for valuable guidance for further development of high‐energy‐density aqueous zinc‐ion batteries.
Mingcong Tang, Qun Liu, Xiaohong Zou, Biao Zhang, Liang An   +4 more
wiley   +1 more source

Oxidation of Alkylaromatics

E-Journal of Chemistry, 2007
Hydroperoxide at α-position to the aromatic ring is the primary oxidation product formed. In all cases monoalkylbenzenes lead to the formation of benzoic acid.
T. S. S. Rao, Shubhra Awasthi
doaj   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

Polycondensation as a Universal Method for Preparing High‐Density Single‐Atom Catalyst Libraries

Advanced Materials, EarlyView.
This paper presents a universal bottom‐up polycondensation strategy for synthesizing high‐density single‐atom catalysts (HD‐SACs) with metal loadings up to 27.5 wt%. Using various metal monomers with 1,10‐phenanthroline‐5,6‐dione ligands, it generates atomically dispersed mono‐ and bimetallic HD‐SACs.
Jaques‐Christopher Schmidt, Jan Romano‐deGea, Dragos C. Stoian, Mounir Mensi, Miyeon Chang, Ariana Serban, Satyadeep Waiba, Xinbang Wu, Lindsey E. K. Frederiksen, Rosie J. Somerville, Roland C. Turnell‐Ritson, Xunhui Wang, Laura Piveteau, Daniel Ortiz, Niccolò Martinolli, David Reyes, Jordi Espín, Timo M. O. Felder, Stefano Di Leone, Pascal Miéville, Shoubhik Das, Paul J. Dyson   +21 more
wiley   +1 more source

Non‐Contact, Non‐Contamination, and High‐Resolution Electrostatic Imaging with Floating‐Extended‐Gate Organic Field‐Effect Transistors

Advanced Materials Technologies, EarlyView.
Invisible static electricity poses serious industrial risks such as electronics failures and fire accidents. Detecting it is particularly challenging when positive and negative charges are densely mixed. Flexible and printed organic transistor sensors can visualize these hidden charge patterns on plastic surfaces.
Yudai Hemmi, Kodai Uto, Itsuki Shoji, Hideki Wada, Toshiyuki Sugimoto, Hiroyuki Matsui   +5 more
wiley   +1 more source

Triplet–Triplet Annihilation Photon Upconversion Toward UVC Energy Generation Using TIPS‐Benzene and a Heptazine Derivative

Advanced Optical Materials, EarlyView.
The TTA‐UC from visible/UVA to UVB/C is demonstrated by combining a heptazine derivative with TIPS‐benzene‐based emitters. The heptazine derivative has a triplet energy level high enough to sensitize the emitters. The introduction of bulky tert‐butyl substituents to the TIPS‐benzene emitter is a simple and powerful strategy for enhancing the TTA‐UC ...
Masanori Uji, Sakura Nakagawa, Atsuko Nihonyanagi, Daigo Miyajima, Naoya Aizawa, Nobuhiro Yanai   +5 more
wiley   +1 more source

Exploration of Mechanochemical Activation in Solid-State Fluoro-Grignard Reactions

Molecules, 2020
Owing to the strength of the C−F bond, the ‘direct’ preparation of Grignard reagents, i.e., the interaction of elemental magnesium with an organic halide, typically in an ethereal solvent, fails for bulk magnesium and organofluorine ...
Isaiah R. Speight, Timothy P. Hanusa
doaj   +1 more source