Surface Conversion of ZnO Tetrapods Produces Pinhole-Free ZIF-8 Layers for Selective and Sensitive H₂ Sensing Even in Pure Methane.

ABSTRACT: As the necessary transition to a supply of renewable energy moves forward rapidly, hydrogen (H₂) becomes increasingly important as a green chemical energy carrier. The manifold applications associated with the use of hydrogen in the energy sector require sensor materials that can efficiently detect H₂ in small quantities and in gas mixtures. As a possible candidate, we here present a metal-organic framework (MOF, namely ZIF-8) functionalized metal-oxide gas sensor (MOS, namely ZnO). The gas sensor is based on single-crystalline tetrapodal ZnO (t-ZnO) microparticles, which are coated with a thin layer of ZIF-8 ([Zn(C₄H₅N₂)₂]) by a ZnO conversion reaction to obtain t-ZnO@ZIF-8 (core@shell) composites. The vapor-phase synthesis

SUBMITTER: Poschmann MPM 

PROVIDER: S-EPMC10436243 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature