Results 51 to 60 of about 109,848 (316)

Facile Preparation of Carbon Membranes Derived from a Fluorenyl‐Containing Polyimine for Selective Hydrogen Separation

open access: yesAdvanced Functional Materials, EarlyView.
A fluorenyl‐containing polyimine is introduced as a simple, scalable precursor for high‐performance carbon membranes. The precursor's intrinsic kinked structure enables defect‐free membrane formation with enhanced hydrogen permeance and excellent ideal selectivities for key industrial gas pairs (H2/N2, H2/CH4, and H2/CO2), offering a practical route ...
Clara Coiana   +5 more
wiley   +1 more source

Temperature-dependent co-adsorption of H2O and CO2 by aminated porous solid adsorbers for direct air capture

open access: yesSustainable Chemistry for Climate Action
We hypothesize that dynamic aspects of the chemisorption of CO2 and co-adsorption of H2O on aminated adsorbents are highly important when used in direct air capture (DAC) technologies.
Dennis Prietzel   +7 more
doaj   +1 more source

Harvesting Energy from CO2 Emissions [PDF]

open access: yes, 2013
When two fluids with different compositions are mixed, mixing energy is released. This holds true for both liquids and gases, though in the case of gases, no technology is yet available to harvest this energy source.
Biesheuvel, P.M.   +9 more
core   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

open access: yesAdvanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang   +13 more
wiley   +1 more source

Research on competitive adsorption characteristics of CO2 and CH4 in coal

open access: yesMeikuang Anquan
Deep understanding of the competitive adsorption characteristics of CO2 and CH4 in coal seams is of great significance for achieving stable CO2 storage and efficient CH4 recovery.
Zhipeng ZHAO   +8 more
doaj   +1 more source

Competition of CO2/H2O in adsorption based CO2 capture

open access: yesEnergy Procedia, 2009
AbstractAll flue gases contain water vapour along with carbon dioxide, nitrogen, etc. Vacuum Swing Adsorption (VSA), which has been successfully studied for post-combustion dry CO2 capture in our group, is strongly affected by the overwhelming competitive adsorption of water vapour on CO2 adsorbents.
Li, Gang   +4 more
openaire   +1 more source

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

open access: yesAdvanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang   +18 more
wiley   +1 more source

Competitive adsorption of CO2/CH4 on coal: Insights from thermodynamics

open access: yesAlexandria Engineering Journal
The main reason for CO2 enhanced coalbed methane recovery is the competitive adsorption of CO2 and CH4 on coal. Therefore, it is necessary to study the equilibrium adsorption of CO2, CH4 and their mixed gases on coal over a wide range of pressures.
Kaibo Huang   +9 more
doaj   +1 more source

Adsorption experiments of supercritical CO2 by coals and comparisons of different description models

open access: yesMeikuang Anquan, 2023
Adsorption characteristic of supercritical CO2 on coal directly determines the CO2 geological storage capacity. Through volumetric method, this paper analyzed the manifestation effects of different models on the experimental data of various ranked coals
LI Yanhe, LI Xiyuan, SUN Juzheng, TONG Yanjun, XUE Junhua, YANG Quanlin, CHEN Zhiheng
doaj   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour   +11 more
wiley   +1 more source

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