Results 101 to 110 of about 374,588 (287)

Thermodynamic Analysis of Cyclic Operation of On-Board Nanoporous Carbon-Based Adsorbed Methane Storage Tank with Various Thermal Control Systems

open access: yesChemEngineering
Thermal effects of adsorption and desorption, leading to temperature fluctuations and losses of adsorption storage systems capacity in the processes of gas charging and discharging, are the main obstacle to the wide practical application of adsorbed ...
Sergey S. Chugaev   +6 more
doaj   +1 more source

Functionalization of Carbon and Silica Gel by Phosphoric Acid

open access: yesAdsorption Science & Technology, 2007
Functionalization of polymer-based carbon (SCS-3) and silica gel (SG60) by phosphoric acid at 800°C was investigated. It was shown that heat treatment of carbon and silica gel in the presence of phosphoric acid at 800°C provides a way of functionalizing ...
A.M. Puziy   +4 more
doaj   +1 more source

Multicomponent gas sorption Joule-Thomson refrigeration [PDF]

open access: yes, 1991
The present invention relates to a cryogenic Joule-Thomson refrigeration capable of pumping multicomponent gases with a single stage sorption compressor system.
Bard, Steven   +2 more
core   +1 more source

Proton and cadmium adsorption by the archaeon Thermococcus zilligii: Generalising the contrast between thermophiles and mesophiles as sorbents [PDF]

open access: yes, 2010
Adsorption by microorganisms can play a significant role in the fate and transport of metals in natural systems. Surface complexation models (SCMs) have been applied extensively to describe metal adsorption by mesophilic bacteria, and several recent ...
Bremer, Phil J.   +7 more
core   +2 more sources

Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing

open access: yesAdvanced Functional Materials, EarlyView.
In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee   +12 more
wiley   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange   +11 more
wiley   +1 more source

Hammett Acidity Function for Mixed ZrO2–SiO2 Oxide at Elevated Temperatures

open access: yesХімія, фізика та технологія поверхні, 2012
The mixed ZrO2?SiO2 oxides with different 4 ? Zr/Si ? 0.25 atomic ratios have been prepared using a sol-gel method. It was shown that the concentration-strength acid site distributions on the surface of ZrO2?SiO2 are caused by Zr4+/Si4+ ratio.
E. I. Inshina   +3 more
doaj  

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Synthesis and Adsorptive Constitutive Properties of MMS/MFI Materials Prepared on the Basis of Al-Aerosil

open access: yesAdsorption Science & Technology, 2007
A method for the one-stage bitemplate synthesis of mesoporous zeolite-containing materials based on Al-aerosil (Al-MZ) is proposed. The prepared materials were characterized by IR spectroscopy (FT-IR), X-ray diffraction (XRD) and nitrogen adsorption ...
K.M. Khomenko   +4 more
doaj   +1 more source

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang   +11 more
wiley   +1 more source

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