Outstanding Room-Temperature Hydrogen Gas Detection by Plasma-Assisted and Graphene-Functionalized Core-Shell Assembly of SnO₂ Nanoburflower.

ABSTRACT: Here, we have reported the synthesis of three-dimensional, mesoporous, nano-SnO₂ cores encapsulated in nonstoichiometric SnO₂ shells grown by chemical as well as physical synthesis procedures such as plasma-enhanced chemical vapor deposition, followed by functionalization with reduced graphene oxide (rGO) on the surface. The main motif to fabricate such morphology, i.e., core-shell assembly of burflower-like SnO₂ nanobid is to distinguish gases quantitatively at reduced operating temperatures. Electrochemical results reveal that rGO anchored on SnO₂ surface offers excellent gas detection performances at room temperature. It exhibits outstanding H₂ selectivity through a wide range, from ∼10 ppm to 1 vol %, with very little cross-sensiti

SUBMITTER: Nandi A 

PROVIDER: S-EPMC6648368 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature