Superior NO2 Sensing via Semiconductor-Metal Transition in Undoped Hf2CO2 MXene: Doping-Mediated Trade-offs between Surface Reactivity and Electronic Properties

Q: What type of study is this?

This is a In Vitro Study study.

Renjie Zhu; Zebang Cheng; Wenjing Hu; Jiajun Jiang; Tingting Shi; Jing Chen; Xiaolin Liu; Lin Peng; Jia Lin

doi:10.1039/d5cp02168e

January 1, 2025Physical Chemistry Chemical Physics

Superior NO2 Sensing via Semiconductor-Metal Transition in Undoped Hf2CO2 MXene: Doping-Mediated Trade-offs between Surface Reactivity and Electronic Properties

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Key Points

This work demonstrates superior NO2 sensing in Hf2CO2 MXene due to enhanced electronic properties.
Analysis shows that intrinsic vacancy defects significantly influence gas-sensing performance.
Using density functional theory, we show that doping can modify surface reactivity for better sensing.
Findings underscore the importance of balancing surface reactivity and electronic properties in sensor design.

Implication

DFT and NEGF reveal improved gas-sensing in Hf2CO2 MXene, suggesting trade-offs in surface reactivity and electronic properties.

Abstract

In this paper, we employ density functional theory (DFT) and non-equilibrium Green's function (NEGF) calculations to investigate the gas-sensing properties of monolayer Hf2CO2 MXene, focusing on intrinsic vacancy defects and...

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Cite This Study

Zhu et al. (2025) studied this question.

synapsesocial.com/papers/68a6fb9b5502675167ba96df https://doi.org/10.1039/d5cp02168e

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Superior NO2 Sensing via Semiconductor-Metal Transition in Undoped Hf2CO2 MXene: Doping-Mediated Trade-offs between Surface Reactivity and Electronic Properties

Key Points

Implication

Abstract

Discussion

Cite This Study

Superior NO2 Sensing via Semiconductor-Metal Transition in Undoped Hf2CO2 MXene: Doping-Mediated Trade-offs between Surface Reactivity and Electronic Properties

Key Points

Implication

Abstract

Discussion

Cite This Study

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