Jae Hyeok Kim

TL;DR: Good selectivity of Co3O4 hollow spheres to ethanol can be explained by a catalytic activity of Co 3O4; whereas high selectivity is attributed to a synergistic effect of catalytic SnO2 and Co3 O4 and promotion of gas sensing reactions by a pore-size control of microreactors.

TL;DR: A photoactive amine functionalized Ti metal-organic framework (MOF) layer is uniformly coated on vertically ordered TiO2 nanorods (NRs) via a facile hydrothermal reaction, and the performance of the heterojunction photoanode in photoelectrochemical (PEC) water splitting is studied in this paper.

TL;DR: The mechanism for the humidity-immune gas-sensing characteristics was investigated by X-ray photoelectron and diffuse reflectance infrared Fourier transform spectroscopies together with the phenomenological gas-Sensing results and discussed in relation with Pr3+/Pr4+ redox pairs, regenerative oxygen adsorption, and scavenging of hydroxyl groups.

TL;DR: In this article, a galvanic replacement of Zn in ZnO hollow spheres by Cr 2 O 3 and ZnCr 2 O 4 particles was used to achieve high selectivity and response to xylene.

TL;DR: In this article, the reduced graphene oxide (rGO)-In 2 O 3 hybrid materials were prepared by a solvothermal reaction of an In precursor containing rGO sheets, which were coated onto flexible substrates for gas sensors.