Results 91 to 100 of about 9,573 (261)

Interplanar Potential Difference‐Mediated Efficient Charge Separation in SrLi2Ti6O14 Towards Optimized Photocatalytic Hydrogen Evolution

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The periodic quantum well formed by alternative stacking of SrO and LTO layers facilitates efficient photoinduced charge separation and thus significantly improves its photocatalytic hydrogen production performance. SrLi2Ti6O14 porous microspheres (SLTO PMSs) and SrLi2Ti6O14/TiO2 hollow sphere heterojunctions (SLTO/TiO2 HSs) are fabricated via ...
Nan Zhao   +6 more
wiley   +1 more source

NUMERICAL STUDY OF ARGON EFFECT ON NITROGEN SEPARATION FROM AIR BY PRESSURE SWING ADSORPTION

open access: yesInternational Islamic University Malaysia Engineering Journal, 2020
A mathematical model was used to design four modes of two-bed pressure swing adsorption (PSA) process to investigate argon presence in the feed mixture.
Abdulbasit Hassan Mahdi   +3 more
doaj   +1 more source

Testing and Results of Vacuum Swing Adsorption Units for Spacesuit Carbon Dioxide and Humidity Control [PDF]

open access: yes
A principal concern for extravehicular activity (EVA) spacesuits is the capability to control carbon dioxide (CO2) and humidity (H2O) for the crewmember.
Anderson, Molly   +3 more
core   +1 more source

Testing of an Amine-Based Pressure-Swing System for Carbon Dioxide and Humidity Control [PDF]

open access: yes, 2007
In a crewed spacecraft environment, atmospheric carbon dioxide (CO2) and moisture control is crucial. Hamilton Sundstrand has developed a stable and efficient amine-based CO2 and water vapor sorbent, SA9T, that is well-suited for use in a spacecraft ...
Campbell, Melissa   +7 more
core   +1 more source

Overcoming contact issues in bottom‐contact, short‐channel organic transistors with van der Waals conformal contacts

open access: yesFlexMat, EarlyView.
A new conformal contact transfer strategy is developed to enhance the contact interface quality between organic semiconductors and metal electrodes in bottom‐contact, short channel organic field‐effect transistors. By utilizing interfacial water permeation and surface functionalization, the method achieves a van der Waals conformal contact interface ...
Yuan Tan   +7 more
wiley   +1 more source

Performance Evaluation of Engineered Structured Sorbents for Atmosphere Revitalization Systems On Board Crewed Space Vehicles and Habitats [PDF]

open access: yes, 2011
Engineered structured (ES) sorbents are being developed to meet the technical challenges of future crewed space exploration missions. ES sorbents offer the inherent performance and safety attributes of zeolite and other physical adsorbents but with ...
Howard, David F.   +4 more
core   +1 more source

Laser‐assisted in situ fabrication of atomically thin Ga2O3 films for dielectric applications

open access: yesFlexMat, EarlyView.
A confinement template‐assisted squeeze method, in conjunction with laser‐assisted in situ oxidation, facilitates fabrication of centimeter‐scale and atomically thin gallium oxide films from liquid gallium under room temperature conditions. This low‐damage approach avoids thermal degradation of sensitive materials and supports high‐performance field ...
Erzhuo Zhang   +9 more
wiley   +1 more source

Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture

open access: yesCarbon Capture Science & Technology
Ultra-microporous solid sorbents with high CO2 adsorption capacities and gas selectivity are preferred for carbon capture. Here we deliver such sorbents via a combination of narrow micropores, lack of mesopores and an abundance of CO2-philic functional ...
Liang Ding   +6 more
doaj   +1 more source

Development and Testing of a Sorbent-Based Atmosphere Revitalization System for the Crew Exploration Vehicle 2007/2008 [PDF]

open access: yes, 2008
The design of a Vacuum-Swing Adsorption (VSA) system to remove metabolic water and metabolic carbon dioxide from the Orion Crew Exploration Vehicle (CEV) atmosphere is presented. The approach for Orion is a VSA system that removes not only 100 percent of
Howard, David   +2 more
core   +1 more source

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