A surface acoustic wave (SAW) formaldehyde gas sensor was fabricated on a 42° 75? ST-cut quartz substrate, with composite sensing layer of zeolitic imidazolate framework (ZIF)-8 polyethyleneimine (PEI)/bacterial cellulose (BC) nanofilms. The addition snowflake-like ZIF-8 structure the PEI/BC sensitive film significantly improves hydrophobicity SAW and increases its sensitivity to gas. It also r...

We introduce for the first time a zeolitic imidazolate framework (ZIF)-coupled resonant gas sensor whose sensitivity shows an improvement up to 78 times over silicon resonant sensors with identical dimensions while additionally utilizing the inherently selective adsorption properties of ZIFs. In order to achieve high sensitivities, a resonator needs to have a high surface-to-volume ratio. In th...

A series of mixed-linker Zeolitic Imidazolate Framework(ZIF)-7–8s constructed from different amounts benzimidazolate (bIm) and 2-methylimidazolate (mIm) linkers were synthesized in this study. We demonstrated that by carefully controlling the ratios between bIm mIm linkers, particle morphology pore size ZIF-7–8 can be tailored to selectively adsorb CO2 or SF6 with significantly enhanced uptake ...

This work reports on zeolitic imidazolate framework (ZIF)-coupled microscale resonators for highly sensitive and selective gas detection. The combination of microscale resonators and nanoscale materials simultaneously permits the benefit of larger capture area for adsorption from the resonator and enhanced surface adsorption capacity from the nanoscale ZIF structure. Dielectrophoresis (DEP) was...

The use of metal-organic frameworks (MOFs) in the polymerization field remains comparatively rare up to now, let alone studies on the fabrication of polymer microstructures through a MOFs-catalyzed assembly process. Zeolitic imidazolate framework-8 (ZIF-8), a well-known MOF for its chemical and thermal stabilities, was used to induce a polymerization reaction of saturated alkylsilanes for the f...

A hybrid structure, a graphitic nanostructures@porous carbon framework, is developed by utilizing the bimetallic zeolitic imidazolate framework-8 (ZIF-8) as a solid precursor, simultaneously templating porous carbon and growing graphitic nanocarbon in a simplified chemical vapor deposition (CVD) fashion. A ligand, 2-methylimidazolate (2MIM), in the ZIF-8 decomposes above 600 C to yield active c...