Focused ion beam fabrication of high-resolution electrochemical-electroluminescence coupling bipolar nanoelectrode array sensors

Li，Guopeng1,2,3; Hao，Rui2,3

2024-12-01

10.1016/j.snr.2024.100220

Sensors and Actuators Reports   影响因子和分区

2666-0539

High temporal and spatial resolution electrochemical sensor arrays can greatly benefit various parallel sensing applications. Herein, we provide a simple method for the controlled and scaled fabrication of bipolar nanoelectrode arrays (BPnEAs) for high-resolution electrochemical sensing applications. BPnEAs are prepared on silicon nitride film windows through the dual-beam FIB nanofabrication technique. Coupling a conventional electrochemical redox reaction with a tris (2,20-bipyridyl) ruthenium /2-(dibutylamino)ethanol electrochemiluminescence (ECL) system, which is based on a high-viscosity solvent to reduce molecular diffusion, allows for the reporting of conventional electrochemical redox processes with high spatial and temporal resolution. The use of the BPnEA-ECL sensor is demonstrated on 10 × 10 Pt or C BPnEAs for monitoring the reduction of 0.5 M HSO. BPnEA-ECL sensors containing different electrode materials (Pt and C) are reported for the first time and are used to monitor the reduction of 0.5 M HSO, thus revealing the difference in electrocatalytic capacities between Pt and C. Subsequently, we reveal the outstanding capabilities of the BPnEA-ECL system for catalyst screening.

Bipolar electrode array Electrochemical imaging Focused ion beam fabrication Parallel sensing

EI

英语

通讯

2-s2.0-85198005251

Scopus

1.Department of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin,150006,China
2.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
3.Research Center for Chemical Biology and Omics Analysis,Southern University of Science and Technology,Shenzhen,518055,China

Li，Guopeng,Hao，Rui. Focused ion beam fabrication of high-resolution electrochemical-electroluminescence coupling bipolar nanoelectrode array sensors[J]. Sensors and Actuators Reports,2024,8.

Li，Guopeng,&Hao，Rui.(2024).Focused ion beam fabrication of high-resolution electrochemical-electroluminescence coupling bipolar nanoelectrode array sensors.Sensors and Actuators Reports,8.

Li，Guopeng,et al."Focused ion beam fabrication of high-resolution electrochemical-electroluminescence coupling bipolar nanoelectrode array sensors".Sensors and Actuators Reports 8(2024).