Covalent organic frameworks as micro-reactors: confinement-enhanced electrochemiluminescence.

ABSTRACT: Electrochemiluminescence (ECL) micro-reactors with enhanced intensity and extreme stability were first established by the assembly of tris(2,2'-bipyridyl) ruthenium(ii) (Ru(bpy)₃ ²⁺) onto covalent organic frameworks (COFs), in which a type of imine-linked COF (denoted as COF-LZU1) was employed as a model for ECL micro-reactors. Compared with the dominant ECL system of Ru(bpy)₃ ²⁺/tri-n-propylamine (TPrA) (TPrA as a co-reactant), the intensity of the COF-LZU1 micro-reactor-based electrode was significantly increased nearly 5-fold under the same experimental conditions, which is unprecedented in other Ru(bpy)₃ ²⁺-based ECL systems. This enhancement can be attributed to the large surface area, delimited space, and stable

SUBMITTER: Zeng WJ 

PROVIDER: S-EPMC8159293 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature