Synergistic effect promoting proton transport in metal-organic framework aerogels.

One of the significant challenges encountered by metal-organic frameworks (MOFs) in proton conduction is their limited processability. In this study, we successfully synthesized UiO-66-COOH aerogel and UiO-66-2COOH aerogel, which exhibit high proton conductivities and remarkable temperature cycling stability in terms of performance and structural integrity.

Aluminum Josephson junction microstructure and electrical properties modified by thermal annealing.

Reproducibility of Al/AlO/Al Josephson junctions is a challenge for scaling up superconducting quantum processors. The frequency uncertainty of the transmon qubits arising from the fabrication process is attributed to deviations in the Josephson junction microstructure and electrical properties. Here, we present a solution for this problem using the post-fabrication Josephson junction thermal annealing process.

Freeze-Cast MIL-53(Al) Porous Materials with High Thermal Insulation and Flame Retardant Properties.

The development of materials with superior thermal insulation and flame retardancy is critical for industrial applications and daily life. Metal-organic framework (MOF)@poly(vinyl alcohol) (PVA) (MOF@PVA) aerogel composites have demonstrated remarkable thermal insulation and flame retardancy properties. In this work, MIL-53(Al) was directly mixed with PVA and formed by freeze-drying, and the influence of the pore structure on the thermal insulation and flame retardancy properties of the materials was investigated.

Preparation, acid modification and catalytic activity of kaolinite nanotubes in α-pinene oxide isomerization.

In this work kaolinite nanotubes (KNT) were obtained from commercial kaolin AKF-78 (Uzbekistan) by starting material sequential intercalation by DMSO and methanol, followed by treatment with a cetyltrimethylammonium chloride solution. Acid functionalization of KNT for catalytic applications was successfully performed for the first time using a two-step treatment with piranha solution (HSO-HO), which resulted in the removal of organic impurities as synthetic artifacts and an increase in specific surface area by 3.9 times (up to 159 m g), pore volume by 1.

In Situ Pyrolysis of ZIF-67 to Construct CoN@ZIF-67 for Photocatalytic CO Cycloaddition Reaction.

The development of heterogeneous catalysts with abundant active sites is pivotal for enhancing the efficiency of photothermal CO conversion. Herein, we report the construction of CoN@ZIF-67 through the in situ pyrolysis of ZIF-67 under low-temperature pyrolysis conditions. During the pyrolysis process, the crystal structure of ZIF-67 is predominantly preserved concurrently with the formation of CoN nanoparticles (NPs) within the ZIF-67 pores.