One-step He purification from natural gas represents a crucial solution for addressing the global He shortages. The prevailing method to produce high-grade He involves cryogenic distillation and ultralow temperature adsorption processes, which is highly cost- and energy-intensive. Separating and purifying He at ambient temperature is a great challenge because the fundamental limitation lies in the boiling point, polarizability, and kinetic diameters of CH/N/He gases. In this study, we seek to implement a relay adsorption strategy using Ni(ina) and MIL-100(Cr) metal-organic frameworks (MOFs) to produce high-purity He from ternary mixtures (CH, N, and He) at ambient temperature. The CH/He selectivity in Ni(ina) and N/He selectivity in MIL-100(Cr) both reach record 15.39 and 128.49, respectively, making the relay adsorption for helium purification highly efficient. The breakthrough experiments show that the two MOFs can sequentially adsorb CH and N in ternary mixtures, producing He with a purity of up to 99.99% in one step. The remarkable separation performance and stability of these MOFs underscore the industrial potential in purifying He at ambient temperature.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.4c05368 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Morbidity Risk of Infectious Gastroenteritis Attributable to Cold and Heat Temperatures: An Analysis of National Surveillance Data in Japan (2000-2019).
Cureus
December 2024
Epidemiology and Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, JPN.
Introduction Climate change is a decisive factor affecting human health. While many epidemiological studies have investigated the acute impacts of ambient temperature on mortality and morbidity, the global burden of infectious gastroenteritis linked to temperature changes remains largely unexplored. Therefore, we aimed to examine the exposure-response associations between ambient temperature and infectious gastroenteritis incidence throughout Japan and quantify the temperature-related morbidity burden.
View Article and Find Full Text PDFElectrochemical Monitoring of Vitamins B and C in Environmental Matrices with an Oligo Diaminotriazole Electrode.
ACS Omega
January 2025
Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
Chemical polymerization/oligomerization opens numerous opportunities, from fundamental materials research to practical applications in catalysis, energy, sensing, and medicine. The electrochemical detection of vitamins B (folic acid) and C (ascorbic acid) requires new approaches because of low selectivity, electrode fouling, and interference from other chemicals. As an excellent material for long-term vitamin detection, oligo 3,5-diamino-1,2,4-triazole (oligo DAT) enhances the sensitivity, selectivity, and stability of sensors by creating a stable, conductive layer that facilitates electron transfer and reduces interference from common substances like glucose or uric acid.
View Article and Find Full Text PDFAssociation of ambient temperature with social isolation among the community-dwelling Chinese older adults: A cross-sectional study in Hong Kong.
Heliyon
January 2025
Centre for Health Systems and Policy Research, JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
Background: The adverse health impacts of ambient temperature have been well-documented, encompassing not only the mortality and morbidity burden but also mood and mental health disorders. However, the relationship between temperature and social isolation remains unexplored. The objective of the current study was to investigate the potential associations between ambient temperature and social isolation among the aging population.
View Article and Find Full Text PDFDeveloping affordable and efficient heating devices for enhanced live cell imaging in confocal microscopy.
Front Plant Sci
January 2025
Department of Biology, University of Mississippi, University, MS, United States.
Temperature control is crucial for live cell imaging, particularly in studies involving plant responses to high ambient temperatures and thermal stress. This study presents the design, development, and testing of two cost-effective heating devices tailored for confocal microscopy applications: an aluminum heat plate and a wireless mini-heater. The aluminum heat plate, engineered to integrate seamlessly with the standard 160 mm × 110 mm microscope stage, supports temperatures up to 36°C, suitable for studies in the range of non-stressful warm temperatures (e.
View Article and Find Full Text PDFAnchoring Ag(I) into MOF-253 for Effectively Catalyzing Cycloaddition of CO with Alkynyl Alcohols/Amine under Ambient Conditions.
Inorg Chem
January 2025
Inner Mongolia Engineering Research Centre of Lithium-Sulfur Battery Energy Storage, Inner Mongolia Key Laboratory of Solid State Chemistry for Battery, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, People's Republic of China.
In the era of global warming, the conversion of carbon dioxide into high-value products has become a widely scrutinized emerging mitigation strategy. Metalation of bpy-containing MOF-253 led to the synthesis of MOF-253-0.5Ag, which acts as an efficient catalyst for the carbonylative cyclization of CO with alkyne molecules (such as propynyl alcohols and propynyl amines) at room temperature and ambient CO pressure, yielding the corresponding α-alkyl cyclic carbonates and oxazolidinones, thus endowing the catalytic system with bifunctional characteristics.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!