A new Zr(iv)-based metal–organic framework, termed VNU-23 [Zr6O8(H2O)8(H2SNDC)4], where H2SNDC2− = 4,8-disulfonaphthalene-2,6-dicarboxylate, was synthesized. Subsequently, the anchoring strategy was employed to dock histamine into VNU-23 to enhance the proton conductivity at 95 °C and 85% relative humidity.

An anchoring strategy affords a 900-fold enhancement in the proton conductivity of a new Zr-based metal–organic framework.

A presynthesized, square planar copper imidazole complex, [Cu(imidazole)4](NO3)2, was utilized as a precursor in the synthesis of a new series of zeolitic imidazolate frameworks, termed ZIF-202, -203, and -204. The structures of all three members were solved by single-crystal X-ray diffraction analysis, which revealed ZIF-203 and -204 having successfully integrated square planar units within the backbones of their respective frameworks. As a result of this unit, the structures of both ZIF-203 and -204 were found to adopt unprecedented three-dimensional nets, namely, ntn and thl, respectively. One member of this series, ZIF-204, was demonstrated to be highly porous, exhibit exceptional stability in water, and selectively capture CO2 over CH4 under both dry and wet conditions without any loss in performance over three cycles. Remarkably, the regeneration of ZIF-204 was performed under the mild conditions of flowing a pure N2 gas through the material at ambient temperature.

Anti-icing aluminum (Al) surfaces with excellent durability and low icing adhesion strength were fabricated by forming hierarchical structures on Al surfaces and coating silanes with low surface energy. The Al plates were chemically etched and subsequently immersed in hot water to realize micro–nano hierarchical roughness on the surface. The rough Al plates were coated with a solution containing a mixture of 1H,1H,2H,2H-heptadecafluorodecyl (FD)-trimethoxysilane and poly­(dimethylsiloxane) (PDMS)-triethoxysilane, and the wettability and anti-icing properties of the coated surface were compared according to the various ratios of FD and PDMS. The anti-icing surface with 2.9 wt % of the PDMS functional group exhibited a relatively low ice adhesion strength of 25.3 kPa despite a high relative humidity of 75% (at −20.5 °C). In addition, the ice adhesion strength achieved after 100 icing/melting cycles was 47.2 kPa, which indicated excellent durability of the anti-icing properties. This is attributed to the synergistic effect of PDMS and the low surface energy of FD groups, which exhibit chain flexibility, low glass-transition temperature, and repulsion against water molecules.