Results 111 to 120 of about 20,876 (282)

Alkyl Bismuth Cations: Synthesis, Characterization, and Application as Z‐Type Ligands

Chemistry – A European Journal, EarlyView.
Rare examples of alkyl bismuth cations [BiR2(SbF6)] are presented, including cyclopropyl ligands and a bismacyclic structure. The bismuth‐centered Lewis acids act as Z‐type ligands toward the electron‐rich platinum atom in [Pt(PCy3)2], generating a set of metal‐only Lewis pairs. The structural and spectroscopic properties of these rare types of bismuth
Johannes Schwarzmann, Joel Nitzsche, Cissie Slopianka, Liva Hartmann, William Augustinov, Alexandre Gagnon, Carsten von Hänisch, Crispin Lichtenberg   +7 more
wiley   +1 more source

Bis(trifluoromethyl)disulfide and the EtP4 Phosphazene Base—Formation of a Bench‐Stable [EtP4SCF3]+[SCF3]− Salt

Chemistry – A European Journal, EarlyView.
The synthesis of a bench‐stable trifluoromethylthiolate‐substituted phosphazenium salt is reported. Reaction of bis(trifluoromethyl)disulfide with the EtP4 phosphazene base furnishes this salt in quantitative yield. The compound features a unique trifluoromethylthiolate‐iminium motif and allows for functionalization of both trifluoromethylthiolate ...
Lukas Hartmann, Katharina Wels, Natalia Tiessen, Beate Neumann, Jan‐Hendrik Lamm, Hans‐Georg Stammler, Berthold Hoge   +6 more
wiley   +1 more source

High‐Temperature Heat Pump Test Bench with n‐Butane (R‐600) Generating Steam

Chemie Ingenieur Technik, EarlyView.
This work involves building a test bench for a high‐temperature heat pump (HTHP) and analyzing the measurements. The focus is on steam generation using an HTHP to decarbonize process steam demand. The findings indicate that stable steam generation is possible, providing a higher heat transfer coefficient in the heat pump's condenser.
Sebastian Benkert, Lukas Joos, Ursula Wittstadt, Torsten Will, Andreas Burger, Lena Schnabel, Stefan Henninger, Thorsten Klahm   +7 more
wiley   +1 more source

Alaska Energy Statistics 1960-2010 Final Report [PDF]

, 2012
Prior to 1985, the federal Alaska Power Administration published the Alaska Electric Power Statistics. Then, the Alaska Energy Authority (formerly the Alaska Power Authority) began gathering statistical data and publishing this annual report.
Converse, Amber, Fay, Ginny, Meléndez, Alejandra Villalobos   +2 more
core  

The Filament Extension Atomization Process for Powder Production of Elastic Fluids

Chemie Ingenieur Technik, EarlyView.
Filament extension atomization is a promising technique for spraying a wide range of materials, enabling narrow droplet size distributions. This study examines the behavior of various fluids and suspensions to define application limits and identify optimal operating conditions.
Moritz Neukötter, Nick Aulbur, Julian Neudorf, Steffen Jesinghausen, Hans‐Joachim Schmid   +4 more
wiley   +1 more source

Hydroprocessing of synthetic kerosene over a non‐sulphided Ni/Al2O3 catalyst: Impact of alcohols and ketones on alkene conversion

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Synthetic jet fuel containing non‐petroleum‐derived kerosene can be produced from synthetic kerosene obtained through processes that include a hydroprocessing step. The potential use of non‐sulphided (reduced) nickel supported on alumina (Ni/Al2O3) was evaluated as an alternative to sulphided catalysts to saturate alkenes in sulphur‐free ...
Garima Chauhan, Felix Link, Cibele Melo Halmenschlager, Arno de Klerk   +3 more
wiley   +1 more source

Durene conversion in a methanol‐to‐jet process: Exploring conversion at 150–350°C over different acid catalysts

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Acid catalyzed conversion of durene by isomerization, disproportionation, and transalkylation is of interest to the development of a methanol‐to‐jet process to reduce the amount of durene in the kerosene. It was of interest to determine whether durene conversion could be performed at a temperature lower than 350°C.
Aida G. Velasco Ortiz, Risha Raju, Arno de Klerk   +2 more
wiley   +1 more source

Engineering Lipid Nanoparticles for Precision RNA Delivery: Design Principles, Targeting Strategies, and Clinical Prospects

Cancer Nexus, EarlyView.
ABSTRACT Lipid nanoparticles (LNPs) represent the most clinically advanced platform for RNA delivery and have enabled major breakthroughs in vaccines and gene therapies. However, their broader application is still limited by inefficient extrahepatic delivery, immunogenicity, and insufficient control over tissue‐ and cell‐specific targeting. This review
Yu Han, Ying Wang, Xintao Gao, Yan Lei, Yantao Li, Zhiyong Tang   +5 more
wiley   +1 more source

Evaluation of Different Detection and Identification Methods of Intact Tetrahydro‐Methyltestosterone Sulfate Metabolites in Doping Control

Drug Testing and Analysis, EarlyView.
The micro‐scale synthesis of the six out of eight possible tetrahydro‐methyltestosterone sulfate metabolites was performed, and the synthesized materials were used as analytical standards. The analysis of post‐administration sample extracts from methyltestosterone excretion studies against these standards provides further experimental proof for their ...
Yiannis S. Angelis, Olga Goula, Polyxeni Kiousi, Panagiotis Sakellariou   +3 more
wiley   +1 more source

Fossil Fuels: Natural Gas [PDF]

This lesson provides an introduction to the use of natural gas as an energy source. Topics include its advantages (cleanliness, fewer carbon emissions), disadvantages (difficulty in transport and storage), sources, and usage.
John Pratte
core