Results 61 to 70 of about 17,344 (346)

CVD Grown Hybrid MoSe2–WSe2 Lateral/Vertical Heterostructures With Strong Interlayer Exciton Emission

Advanced Materials, EarlyView.
A scalable bottom‐up CVD methodology, based on liquid transition metal salt precursors, is presented for the controlled growth of two high‐quality MoSe2–WSe2 heterostructures (HSs): purely lateral (HS I) and hybrid lateral/vertical (HS II), by simply adjusting precursor concentration.
Md Tarik Hossain, Sai Shradha, Axel Printschler, Julian Picker, Luc F. Oswald, Julian Führer, Nicole Engel, Honey Jayeshkumar Shah, Christof Neumann, Daria I. Markina, Moritz Quincke, Johannes Biskupek, Kenji Watanabe, Takashi Taniguchi, Ute Kaiser, Bernhard Urbaszek, Andrey Turchanin   +16 more
wiley   +1 more source

Fischer-Tropsch Synthesis in Supercritical Phase.

Journal of The Japan Petroleum Institute, 1995
Fischer-Tropsch synthesis in supercritical phase was developed and its reactional behavior and mass transfer phenomenon were analyzed by both experimental and simulation methods. The same reaction apparatus and catalysts were used for both gas-phase reaction and liquid-phase F-T reactions to correctly compare characteristic features of diffusion ...
FAN, Li, YOKOTA, Kohshiroh, FUJIMOTO, Kaoru   +2 more
openaire   +2 more sources

ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals

Advanced Science, EarlyView.
The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray, Andrew R. Castillo, Manoj Kolel‐Veetil, Surya R. Kalidindi   +3 more
wiley   +1 more source

A Strong Lewis Acidic Diethylsilylium Catalyst for Direct Sulfonamidation of Challenging Ketones

Advanced Science, EarlyView.
Low‐substitution‐order silylium ions (R2HSi+) exhibit exceptional Lewis acidic activity. We report diethylsilylium‐catalyzed reductive sulfonamidation of functionalized ketones to access β‐amino esters. The in situ generated ion pair shows enhanced reactivity, with diethylsilane serving as both reductant and precatalyst. The developed protocol proceeds
Woo Hee Kim, Muhammad Israr, You Kyoung Chung, Shinwon Ham, Joonsuk Huh, Han Yong Bae   +5 more
wiley   +1 more source

Determinação de dados experimentais de equilíbrio de fases a alta pressão de sistemas contendo dióxido de carbono supercrítico, etanol e l-lactídeo [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Alimentos, Florianópolis, 2014.A crescente necessidade de materiais poliméricos com a produção baseada em processos limpos ...
Rebelatto, Evertan Antonio
core  

Integrated Supercritical Fluid Extraction And Subcritical Water Hydrolysis For The Recovery Of Bioactive Compounds From Pressed Palm Fiber [PDF]

, 2015
Pressed palm fiber (PPF), a residue obtained from palm oil industry, is a source of bioactive compounds, such as carotenoids, which are used as food additives.
Maugeri Filho F., Meireles M.A.A., Petenate A.J., Cardenas-Toro F.P., Forster-Carneiro T., Rostagno M.A.   +5 more
core   +1 more source

Self‐Assembled Silicon@Silica Metasurfaces with High‐Quality Resonances in the Infrared

Small Science
2D assemblies of resonant dielectric particles constitute promising materials for the next generation of photonic devices, thanks to their low optical losses and intense electromagnetic response.
Megan A. Parker, Raul Barbosa, Cynthia Cibaka‐Ndaya, Alexander Castro‐Grijalba, Maria Letizia De Marco, Brian A. Korgel, David Montero, Sabrina Lacomme, Antoine Azéma, Vasyl G. Kravets, Alexander N. Grigorenko, Virginie Ponsinet, Philippe Barois, Lucien Roach, Glenna L. Drisko   +14 more
doaj   +1 more source

Supercritical CO2‐Induced Porous MXene Films for Electromagnetic Interference Shielding and Infrared Stealth

Advanced Science, EarlyView.
The phase transition of supercritical CO2 induces the foaming of dense MXene film without compromise inherent structure of MXene nanosheet. The foamed porous MXene film manifests remarkable EMI shielding and infrared thermal camouflage performances. Moreover, the foaming strategy is broadly adaptable and can be extended to other two‐dimensional films ...
Hui Zhao, Shuai Li, Jiabei He, Tong Gao, Jingfeng Wang, Dongxiao Kan, Wangtu Huo, Lixin Chen   +7 more
wiley   +1 more source

Continuous flow homogeneous hydroformylation of 1-octene over supported ionic liquid phase rhodium catalysts using supercritical CO₂ [PDF]

, 2011
The hydroformylation of 1-octene with supported ionic liquid phase catalyst was demonstrated when using a system involving the substrate, reacting gases and products in CO₂ and N₂ flow over a fixed bed supported ionic liquid phase catalyst (silica gel ...
Gong, Zhenxin
core  

Investigation of effective parameters in the production of alumina gel through the sol-gel method

Case Studies in Chemical and Environmental Engineering, 2023
Sol-gel chemistry is currently applied as one of the most widely used methods for synthesis of nanoparticles. In this method hydrolysis and poly-condensation reactions occur when the gel precursors are mixed with water and catalyst.
Rusul Alabada, Mustafa M. Kadhim, Zainab sabri Abbas, Ahmed Mahdi Rheima, Usama S. Altimari, Ashour H. Dawood, Alaa dhari jawad al-bayati, Zainab Talib Abed, Rusul Saeed Radhi, Asala Salam Jaber, Safa K. Hachim, Farah K. Ali, Zaid H. Mahmoud, Ehsan Kianfar   +13 more
doaj   +1 more source