Results 61 to 70 of about 2,715,462 (245)

Supercritical diethylether: A novel solvent for the synthesis of aryl-3,4,5,6,7,9-hexahydroxanthene-1,8-diones

, 2017
An efficient and simple method for the preparation of -aryl-3,4,5,6,7,9-hexahydroxanthene-1,8-diones from 1,3-cyclohexadione and several aldehydes in the presence of supercritical diethylether has been developed. The present method has several advantages
Ulusal H., Giray E.S., Findikkiran G., Akbaşlar D., Demirkol O.   +4 more
core   +1 more source

Multiscale Regulation of Ru‐Based Catalysts for Upgrading Biomass‐Derived Levulinic Acid and Levulinates to γ‐Valerolactone: Mechanisms, Advances, and Challenges

Advanced Science, EarlyView.
This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni, Cailu Xiao, Gongbing Zhou, Jingzi Zhang   +3 more
wiley   +1 more source

Creation of interfaces in composite/hybrid nanostructured materials using supercritical fluids

Nanotechnology Reviews, 2015
By structuring matter at the nano level using highly versatile nanotechnology approaches and apparatus, multifunctionalities with manifestation of enhanced and/or novel useful properties could be attained.
Pascu Oana, Marre Samuel, Aymonier Cyril
doaj   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

Advanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi, Hiba Ali, Barbara Belza, Mattia F. Palermo, Claudio Gerbaldi, Giuseppe Antonio Elia, Nagore Ortiz‐Vitoriano   +6 more
wiley   +1 more source

SUPERCRITICAL CARBON DIOXIDE EXTRACTION OF ANDROGRAPHOLIDE FROM ANDROGRAPHIS PANICULATA LEAVES USING METHANOL AS COSOLVENT [PDF]

, 2006
The optimisation and design of any separation processes, such as the extraction of bio molecules from their natural resources require mathematical modelling.
Kumoro, A.C., Hasan, M.
core   +1 more source

Review and comparison of the methodology adopted for biodiesel production

Carbon Resources Conversion
Biodiesel is a versatile energy source synthesized by trans esterifying various edible or nonedible oils using catalysts. It is preferable to diesel because of its higher flash points, reduced sulphur content, and biodegradability. Biodiesel synthesis by
Milap G. Nayak
doaj   +1 more source

Fischer-Tropsch synthesis in supercritical reaction media [PDF]

, 1993
Our goals for this quarter were to complete construction of the reactor and analytical units for carrying out Fischer-Tropsch (F-T) synthesis in liquid (n-hexadecane) and in supercritical n-hexane phases.
Bochniak, D., Snavely, K., Subramaniam, B.   +2 more
core   +1 more source

Advancing Environmental Sustainability: The Role of Artificial Intelligence in Monitoring, Predicting, and Controlling Sulfur Dioxide Emissions

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Air pollution from sulfur dioxide (SO2) emissions poses significant threats to environmental sustainability, public health, and climate change efforts. Despite advances in monitoring and regulatory frameworks, traditional methods often fall short in accuracy, scalability, and efficiency.
Turkan Kopac
wiley   +1 more source

Synergetic Combination of Carbon Xerogels, Graphene Oxide and nano‐ZnO for Aqueous and Organic Supercapacitors

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
This work proposes the synthesis of carbon‐based nanostructured materials obtained using ZnO as both nanos‐ template and catalysts simultaneously. During the synthesis, GO was used as a stabiliser, preventing the collapse of the 3D structure and improving its properties in terms of capacitance and surface area.
Rusbel Coneo‐Rodríguez, Alvaro Yamil Tesio, Fernando Pablo Cometto, Gustavo Marcelo Morales, Gabriel Ángel Planes, Alvaro Caballero   +5 more
wiley   +1 more source

Synthesis of Micro- and Nanoparticles in Sub- and Supercritical Water: From the Laboratory to Larger Scales

Applied Sciences, 2020
The use of micro- and nanoparticles is gaining more and more importance because of their wide range of uses and benefits based on their unique mechanical, physical, electrical, optical, electronic, and magnetic properties.
F. Ruiz-Jorge, J. R. Portela, J. Sánchez-Oneto, E. J. Martínez de la Ossa   +3 more
doaj   +1 more source