Results 121 to 130 of about 64,244 (283)

Stereoselective Bio-Organocatalytic Cascade to Chiral Amides as Active Pharmaceutical Ingredient Intermediates Using ω-Transaminase and Choline Chloride Under Microwave Irradiation. [PDF]

ChemSusChem
Amide bond formation is central to active pharmaceutical ingredient (API) synthesis. A bio‐organocatalytic cascade is reported, merging stereoselective ω‐transaminase (ω‐TA) transamination in neat organic solvent with choline chloride‐mediated amidation under solvent‐free microwave conditions.
Romano S, Damian M, Nardi M, Procopio A, Strähler S, Preschel D, Oliverio M, Mutti FG.   +7 more
europepmc   +2 more sources

Search of Axions from a Nuclear Power Reactor with a High-Purity Germanium Detector

, 2007
A search of axions produced in nuclear transitions was performed at the Kuo-Sheng Nuclear Power Station with a high-purity germanium detector of mass 1.06 kg at a distance of 28 m from the 2.9 GW reactor core.
A. R. Zhitnitsky, B. Xin, F. S. Lee, G. D. Alekseev, G. G. Raffelt, H. B. Li, H. M. Chang, H. T. Wong, H. X. Huang, H. Y. Liao, H. R. Koch, J. Li, M. Deniz, M. H. Chou, S. C. Wu, S. T. Lin, S. N. Ketov, V. Singh, V. D. Ananev, V. F. Bobrakov, W. M. Yao   +20 more
core   +2 more sources

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar, Rakesh Saroha, Jun Kim, Hyung Do Kim, Jung Sang Cho, Sang Mun Jeong   +5 more
wiley   +1 more source

CELLULAR GLASS MADE OF CATHODE RAY TUBE GLASS WASTE IN MICROWAVE FIELD

Nonconventional Technologies Review, 2020
The paper presents a microwave based-nonconventional technique of manufacturing a cellular glass obtained by a heat treatment at 803 C of a powder mixture composed of glass waste from cathode ray tube (93 wt.%), MnO2 (7 wt.%) as a foaming agent and water
Lucian Paunescu, Marius Florin Dragoescu
doaj  

Flow through reactors for organic chemistry: directly electrically heated tubular mini reactors as an enabling technology for organic synthesis

Beilstein Journal of Organic Chemistry, 2009
Until recently traditional heating in organic chemistry has been done with oil heating baths or using electric heat exchangers. With the advent of microwave equipment, heating by microwaves was rapidly introduced as standard method in organic chemistry ...
Ulrich Kunz, Thomas Turek
doaj   +1 more source

Twenty‐Minute Microwave‐Enabled Dual‐Anion Nickel Sulfoselenide Anodes for High‐Capacity Sodium/Potassium‐Ion Batteries and Durable Pouch Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A dual‐anion‐assisted strategy is proposed for designing bi‐functional high‐performance anodes. The preparation of NiSSe/N‐C within 20 min demonstrates rapid Na+/K+ reaction kinetics, exceptional rate capability, and remarkable cycling stability. Nickel‐based materials are promising anode candidates for sodium‐ion batteries and potassium‐ion batteries ...
Yayun Zheng, Qiu He, Jitao Shang, Shasha Wei, Haoqing Jiang, Zhaohuai Li, Yan Zhao   +6 more
wiley   +1 more source

A nonequilibrium model for a moderate pressure hydrogen microwave discharge plasma [PDF]

This document describes a simple nonequilibrium energy exchange and chemical reaction model to be used in a computational fluid dynamics calculation for a hydrogen plasma excited by microwaves.
Scott, Carl D.
core   +1 more source

Rapid Assembly of the Salvileucalin B Norcaradiene Core [PDF]

, 2010
Preparation of the polycyclic core of the cytotoxic natural product salvileucalin B is described. The key feature of this synthetic strategy is a copper-catalyzed intramolecular arene cyclopropanation to provide the central norcaradiene.
Levin, Sergiy, Nani, Roger R., Reisman, Sarah E.   +2 more
core   +1 more source

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Entropy‐Driven Innovations: Entropy Stabilized Oxides for High‐Performance Next‐Generation Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article explores high‐entropy‐stabilized oxides (HEOs) as novel functional materials for addressing critical issues in lithium–sulfur (Li–S) batteries, including lithium polysulfide (LPS) shuttling, inadequate conductivity, and slow redox kinetics.
Hassan Raza, Jialiang Wei, Zhicai Wang, Zhaoyang Lv, Junye Cheng, Jia Xu, Liang An, Yuliang Liu, Sergey Ryazantsev, Shukui Li, Guangping Zheng   +10 more
wiley   +1 more source