Recent developments in carbon-based two-dimensional materials: synthesis and modification aspects for electrochemical...

Area of Science:

• Materials Science
• Electrochemistry
• Sensor Technology

Background:

• Two-dimensional carbon materials, including graphene and its allotropes, offer unique properties for electrochemical sensing.
• Variations in synthesis methods lead to diverse material characteristics, significantly impacting sensor performance.
• Graphene is a key recognition layer in various electrochemical sensor types.

Purpose of the Study:

• To review advancements in synthesizing two-dimensional carbon materials for electrochemical sensors.
• To evaluate the influence of material properties (structure, defects) on sensor performance across different transduction technologies.
• To discuss challenges and future perspectives for commercializing 2D carbon-based sensors.

Main Methods:

• Review of synthesis techniques: chemical vapor deposition, liquid phase exfoliation, oxidative procedures (chemical, electrochemical).
• Analysis of graphene integration in electrochemical sensors: field-effect transistors, chemiresistors, impedance-based devices, voltammetric, and amperometric sensors.
• Evaluation of sensor performance based on material structure, defects, and transduction methods.

Main Results:

• Synthesis methods critically influence the properties of two-dimensional carbon materials.
• Material structure and defects significantly impact the sensing performance in various electrochemical sensor designs.
• The choice of preparation method and electrical transduction technique are key determinants of sensor efficacy.

Conclusions:

• The performance of two-dimensional carbon-based sensors is intrinsically linked to their synthesis route and the chosen electrical detection technology.
• Further research is needed to bridge the gap between laboratory findings and market-ready applications for these advanced sensors.
• Optimizing synthesis and transduction is crucial for developing high-performance, reliable 2D carbon electrochemical sensors.