Results 61 to 70 of about 157,527 (353)

Innovative Approach to Recycle Lithium‐Ion Battery Electrolytes via Sequential Chemical Processes

Advanced Energy Materials, EarlyView.
A chemical separation method is developed to recycle and purify nonaqueous electrolytes from spent lithium‐ion batteries. The new process consists of a sequence of precipitation in tandem with each distillation and solvent‐assisted vacuum extraction to obtain high‐quality electrolyte precursors.
Ting‐Wei Hsu, Albert Lipson, Zhengcheng Zhang   +2 more
wiley   +1 more source

Enhancement of dissolution of atorvastatin through preparation of polymeric solid dispersions using supercritical fluid technology

Research in Pharmaceutical Sciences, 2020
Background and purpose: This study aimed at preparation of solid dispersions in order to enhance dissolution of poorly water-soluble atorvastatin using supercritical CO2 technology.
Bashar Altaani, Rana Obaidat, Walaa Malkawi   +2 more
doaj   +1 more source

Isoreticular Synthesis of Mesoporous Metal‐Organic Polyhedra with Permanent Porosity to Gas and Water

Angewandte Chemie International Edition, EarlyView.
In this work, we report the synthesis of two robust, mesoporous metal‐organic cages or polyhedra (MOCs/MOPs) using an isoreticular expansion approach. Among them, the largest mesoporous MOP captures up to 0.47 gwater·gMOP−1, displaying an S‐shaped water sorption isotherm with a hysteresis loop.
Alba Cortés‐Martínez, Pilar Fernández‐Seriñán, Cornelia von Baeckmann, Caterina Caules, Laura Hernández‐López, María Susana Gutiérrez Gómez, Yunhui Yang, Roberto Sánchez‐Naya, José A. Suárez del Pino, Judith Juanhuix, Inhar Imaz, Arnau Carné‐Sánchez, Daniel Maspoch   +12 more
wiley   +1 more source

Supercritical Water Gasification: Practical Design Strategies and Operational Challenges for Lab-Scale, Continuous Flow Reactors

, 2019
Optimizing an industrial-scale supercritical water gasification process requires detailed knowledge of chemical reaction pathways, rates, and product yields. Laboratory-scale reactors are employed to develop this knowledge base.
Gorman, David J., Kramlich, John C., Novosselov, Igor V., Pinkard, Brian R., Rasmussen, Elizabeth G., Reinhall, Per G., Tiwari, Kartik   +6 more
core   +1 more source

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine, Condoret, Jean-Stéphane, Medina-Gonzalez, Yaocihuatl   +2 more
core   +2 more sources

Fluidos supercríticos em química analítica. III.: aplicações Supercritical fluids in analytical chemistry. III.: applications

Química Nova, 2006
The first two papers in this series described the basic theory involved in supercritical fluid chromatography (SFC), how the technique evolved from gas and liquid chromatography and how the instrumentation was developed.
Emanuel Carrilho, Maria Cecília H. Tavares, Fernando M. Lanças   +2 more
doaj   +1 more source

Determination of polar pesticide residues in vegetable and fruit by supercritical fluid chromatography­Q­Orbitrap

Zhongguo shipin weisheng zazhi, 2022
ObjectiveTo establish a method for determination of 12 polar pesticide residues in vegetables and fruits by supercritical fluid chromatography­Q­Orbitrap （SFC­Q­Orbitrap）.MethodsThe samples were extracted with 1% acidified methanol，and the extract was ...
XU Qian, LU Dasheng, QIU Xinlei, FENG Chao, LIN Yuanjie, LE Sunyang, CHEN Yuhang, JIN Yu'e   +7 more
doaj   +1 more source

Structural behavior of supercritical fluids under confinement [PDF]

Physical Review E 97,012131 (2018), 2018
The location of the Frenkel line (FL) of a Lennard-Jones fluid which demarcates two distinct physical states, liquidlike and gaslike within the supercritical regime, has been established through molecular dynamics (MD) simulations of the velocity auto-correlation (VACF) and Radial distribution Function (RDF). We, in this article, explore the changes in
arxiv   +1 more source

ChemInform Abstract: Preparative Supercritical Fluid Chromatography [PDF]

ChemInform, 1998
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M. Shaimi, P. Jusforgues
openaire   +3 more sources

Decarboxylation Study of Acidic Cannabinoids: A Novel Approach Using Ultra-High-Performance Supercritical Fluid Chromatography/Photodiode Array-Mass Spectrometry

Cannabis and Cannabinoid Research, 2016
Introduction: Decarboxylation is an important step for efficient production of the major active components in cannabis, for example, Δ9-tetrahydrocannabinol (Δ9-THC), cannabidiol (CBD), and cannabigerol (CBG).
Mei Wang, Yan-Hong Wang, B. Avula, M. Radwan, A. Wanas, J. van Antwerp, J. Parcher, M. Elsohly, I. Khan   +8 more
semanticscholar   +1 more source