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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (1): 107-114.DOI: 10.16553/j.cnki.issn1000-985x.20241030.001

• 研究论文 • 上一篇    下一篇

SO2和CO在ReS2表面吸附的第一性原理研究

莫秋燕1, 张颂2, 荆涛2, 吴家隐3   

  1. 1.凯里学院大数据工程学院,凯里 556011;
    2.凯里学院理学院,凯里 556011;
    3.广东开放大学(广东理工职业学院)工程技术学院,广州 510091
  • 收稿日期:2024-07-22 出版日期:2025-01-15 发布日期:2025-01-22
  • 通信作者: 吴家隐,博士,副教授。E-mail:wujiayin@m.scnu.edu.cn
  • 作者简介:莫秋燕(1985—),女,广西壮族自治区人,副教授。E-mail:103047249@qq.com
  • 基金资助:
    凯里学院一体化科研项目(YTH-XM2025005);黔东南州科技支撑计划项目(〔2024〕0020);广东省普通高校重点科研平台和科研项目(2023ZDZX1069)

First-Principles Study on the Adsorption of SO2 and CO on ReS2 Surface

MO Qiuyan1, ZHANG Song2, JING Tao2, WU Jiayin3   

  1. 1. Big Data Engineering College, Kaili University, Kaili 556011, China;
    2. School of Science, Kaili University, Kaili 556011, China;
    3. Department of Engineering Technology, Guangdong Polytechnic Institute, Guangdong Open University, Guangzhou 510091, China
  • Received:2024-07-22 Online:2025-01-15 Published:2025-01-22

摘要: 采用基于密度泛函理论的第一性原理计算,对ReS2材料吸附SO2与CO这两种有毒气体的特性进行了研究。研究发现:相较于CO,SO2与ReS2之间的相互作用较大,表现为较紧凑的吸附几何构型和较大的吸附能。通过差分电荷密度的计算,进一步解释了ReS2表面向SO2分子的电子转移过程,这一过程增强了吸附界面的电子密度重排,为ReS2对SO2的高灵敏度检测提供了微观层面的解释。此外,ReS2在室温条件下对SO2和CO的吸附展现出快速解吸能力,适合作为室温下检测SO2和CO的传感材料。因此,ReS2具备成为气体传感器和吸附材料的潜力,为新型、高性能气体污染检测技术的设计提供了方便。

关键词: ReS2, 有毒气体, 吸附, 气体检测, 第一性原理, 传感器

Abstract: Using first-principles calculations based on density functional theory, we investigated the adsorption characteristics of SO2 and CO molecules on ReS2 material. Our study reveals the following key findings: compared to CO, SO2 exhibits stronger interactions with ReS2, resulting in a more compact adsorption geometry and higher adsorption energy. Differential charge density calculations further elucidate the electron transfer process from the ReS2 surface to SO2 molecules. This enhanced electronic density rearrangement at the adsorption interface provides a microscopic explanation for the high sensitivity of SO2 detection. ReS2 exhibits rapid desorption capabilities for SO2 and CO at room temperature, making it a suitable sensing material for ambient SO2 and CO detection. In summary, ReS2 possesses the potential for use as a gas sensor and adsorbent material, facilitating the design of novel, high-performance technologies for gas pollution detection.

Key words: ReS2, toxic gas, adsorption, gas detection, first-principle, sensor

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