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Covalent organic frameworks (COFs) mixed matrix membranes (MMMs) combining individual attributes of COFs and polymers are promising for gas separation. However, applying COF MMMs for propylene/propane (C3H6/C3H8) separation remains a big challenge due to COF inert pores and C3H6/C3H8 similar molecular sizes. Herein, the designed synthesis of a Cu(I) coordinated COF for membrane C3H6/C3H8 separation...
The development of multifunctional and robust swimming microrobots working at the free air–liquid interface has encountered challenge as new manipulation strategies are needed to overcome the complicated interfacial restrictions. Here, flexible but reliable mechanisms are shown that achieve a remote‐control bubble microrobot with multiple working modes and high maneuverability by the assistance of...
Potassium‐ion batteries (PIBs) have been regarded as a competitive alternative for lithium‐ion batteries, owing to the natural abundance, low cost, and similar rocking‐chair working mechanism of potassium element. However, it is challenging to simultaneously prepare suitable potassium ion anode materials of low voltage plateau, high capacity, and long cycle life. In this work, onion‐like soft carbon...
Silicon is one of the most promising anode materials for lithium‐ion batteries. However, the huge volume change of silicon during lithiation/delithiation triggers continuous growth of solid‐electrolyte interphase, loss of conductive contacts and structural collapse of the electrode, which causes a rapid deterioration of battery capacities. Inspired by the polyaromatic molecular nature and phase separation...
Metal peroxide nanoparticles designed to elevate the oxidative stress are considered a promising nanotherapeutics in biomedical applications, including chemotherapy, photodynamic therapy, and bacterial disinfection. However, their lack of specificity towards the therapeutic target can cause toxic side effects to healthy tissues. Here, silver peroxide nanoparticles (Ag2O2 NPs) capable of controlled...
Refractory periapical periodontitis, which is a persistent infection after root canal treatment, still has no effective treatment. Its most common pathogen is Enterococcus faecalis. Here, the precursor of phytosteroids, dioscin, is introduced to fight against the inflammation induced by Enterococcus faecalis. The findings suggest that dioscin inhibits the nuclear transport of NF‐κB and the expression...
In article number 1700468, by Mingliang Du and co‐workers, a unique architecture of dual‐phase octahedral CoMn2O4/carbon hollow nanofibers is prepared via a two‐step heat‐treatment process including pre‐oxidation treatment and an Ostwald ripening process. Due to the intimate electrical and chemical coupling, these nanostructures exhibit excellent active oxygen evolution activity with overpotentials...
1D hollow nanostructures combine the advantages of enhanced surface‐to‐volume ratio, short transport lengths, and efficient 1D electron transport, which can provide more design ideas for the preparation of highly active oxygen evolution (OER) electrocatalysts. A unique architecture of dual‐phase octahedral CoMn2O4/carbon hollow nanofibers has been prepared via a two‐step heat‐treatment process including...
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