Electrochemical sensing mechanism of ammonium ions over an Ag/TiO2 composite electrode modified by hematite

• DOI: 10.1039/d3cc00240c
• Publication Date: 2023-02-02T16:03:03Z
• Authors: Shilin Zhang; Jinqing Hu; Sam Fong Yau Li; Hongxiu Lu; Gang Wang; Chang Lu; Muhammad Tariq Sa...; Aidong Tang; Huaming Yang
• Keywords: 01 natural sciences; 0104 chemical sciences

The rapid, accurate and highly sensitive detection of NH4+ under non-alkaline conditions is achieved by electrooxidizing NH4+ to hydrazine via H2O2 derived from the oxygen reduction reaction over a self-supporting Ag/Fe2O3/TiO2 sensor.