Potentiodynamic Fabrication of Aromatic Diamine Linkers on Electrochemically Reduced Graphene Oxide Surface for Environmental Pollutant Nitrobenzene Monitoring.

ABSTRACT: The structure of self-assembled monolayers (SAMs) greatly influences electrochemical interface behavior. This study systematically examines how positional isomers of aromatic diamines (ADMs) assemble on a glassy carbon (GC) electrode and how such ordering affects the attachment and performance of electrochemically reduced graphene oxide (ERGO). SAMs of ortho-, meta-, and para-phenylenediamine (o-PDA, m-PDA, and p-PDA) were fabricated on GC and characterized using atomic force microscopy (AFM) and Raman spectroscopy. Among them, GC/p-PDA exhibited the most compact and homogeneous interfacial structure. ERGO was subsequently immobilized through the free amine functionalities of the SAM, as confirmed by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray pho

SUBMITTER: Muthukrishnan K 

PROVIDER: S-EPMC12839025 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature