Results 41 to 50 of about 5,336,875 (295)

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

In situ visualization of the performance of a supercritical-water salt separator using neutron radiography

open access: yes, 2008
Salt separation from supercritical water has been identified as a key issue in the deployment of supercritical-water technologies, particularly in the supercritical-water gasification of biomass.
Vontobel, Peter (author)   +3 more
core   +1 more source

Solvation in supercritical water [PDF]

open access: yesFluid Phase Equilibria, 1992
Abstract Cochran H.D., Cummings P.T. and Karaborni S., 1992. Solvation in supercritical water. Fluid Phase Equilibria, 71: 1-16. The aim of this work is to determine the solvation structure in supercritical water compared with that in ambient water and in simple supercritical solvents.
H.D. Cochran   +2 more
openaire   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

open access: yesAdvanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski   +5 more
wiley   +1 more source

Mechanochemical Defluorination of Polytetrafluoroethylene (PTFE) With Base Metals

open access: yesAngewandte Chemie, EarlyView.
Polytetrafluoroethylene (PTFE) mechanochemically reacts with safe‐to‐handle, abundant, and inexpensive base metals Zn and Al, as well as with metals like Cd and Pb, to produce sp2‐carbon and industrially important metal fluorides. The reactivity presents PTFE as a mechanochemical fluorination agent, with opportunities for closed‐loop reductive ...
Anže Zupanc   +10 more
wiley   +2 more sources

Supercritical Water as Nanomedium for Gasification of Lignite–Water Suspension [PDF]

open access: yesNanoscale Research Letters, 2016
The gasification of an aqueous suspension of lignite from Alexandria coalfield (Ukraine) under the supercritical pressure was studied. The initial rates of the formation of hydrogen, carbon dioxide and methane were evaluated. The mutually stimulating interaction of the components of "brown coal-water-mineral matter" system was shown due to the ...
Korzh, Raisa, Bortyshevskyi, Valerii
openaire   +2 more sources

A Thermoreversible Gelation Pathway to Plant Cuticle‐Inspired Biopolymer Aerogel Monoliths Based on Network‐Spherulitic Crystal Assemblies

open access: yesAdvanced Materials, EarlyView.
To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto   +10 more
wiley   +1 more source

EXTRACTION OF HERBAL COMPONENTS – THE CASE FOR SUPERCRITICAL FLUID EXTRACTION [PDF]

open access: yes, 2008
Malaysia is rich in heritage of sources for herbs and medicinal plants. The increasing public awareness of the health, environment and safety hazards associated with the use of organic solvents in herbals processing and the possible solvent ...
Hasan, Masitah, Kumoro, Andri Cahyo
core   +1 more source

Supercritical Fluid Geochemistry in Geothermal Systems

open access: yesGeofluids, 2019
Supercritical fluids exist in the roots of many active high-temperature geothermal systems. Utilization of such supercritical resources may multiply energy production from geothermal systems; yet, their occurrence, formation mechanism, and chemical ...
Matylda Heřmanská   +2 more
doaj   +1 more source

Physical state of water controls friction of gabbro-built faults

open access: yesNature Communications, 2023
Earthquakes often occur along faults in the presence of hot, pressurized water. Here we exploit a new experimental device to study friction in gabbro faults with water in vapor, liquid and supercritical states (water temperature and pressure up to 400 °C
Wei Feng   +8 more
doaj   +1 more source

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