| 张芳都,王青,卢柏松,刘欢.化学通报,2025,88(11):1144-1150. |
| 氧化亚铜基化学电阻式气体传感器在硫化氢检测中的研究进展 |
| Research Progress on Cuprous Oxide-Based Chemiresistive Gas Sensors for Hydrogen Sulfide Detection |
| 投稿时间：2025-07-02 修订日期：2025-08-26 |
| DOI： |
| 中文关键词: 硫化氢、氧化亚铜、化学电阻式传感器、异质结、抗湿度干扰 |
| 英文关键词:Hydrogen sulfide, Cuprous oxide, Chemiresistive gas sensors, Heterojunction, Humidity resistance |
| 基金项目:青岛市企业技术创新重点项目(2420002002635)、青岛地质工程勘察院(青岛地质勘查开发局)科技创新基金项目(2024-QDDZYKY04)资助 |
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| 中文摘要: |
| 硫化氢（H2S）作为兼具环境毒性和生物功能特性的重要气体分子，其快速精准检测对环境污染防控、疾病诊疗及食品新鲜度评估等领域具有重要意义。氧化亚铜（Cu2O）作为典型的p型半导体，凭借对H2S的强化学亲和力，被广泛应用于构建高选择性检测H2S的电阻式气体传感器。本文基于H2S检测的需求，系统梳理了Cu2O对H2S的敏感机制以及气敏性能增强策略，重点从两方面阐释了气敏性能增强机理：（1）通过与金属氧化物、二维材料和贵金属等材料复合构建异质结提升传感器的灵敏度；（2）采用构筑吸水层、消除表面羟基层和疏水层等表面修饰工程强化抗湿度干扰能力。总结了Cu2O作为室温和高温敏感材料在H2S检测中的挑战，并对推进Cu2O基传感材料的应用进行了展望。 |
| 英文摘要: |
| Hydrogen sulfide (H2S), as a critical gas molecule with dual characteristics of environmental toxicity and biofunctional significance, holds substantial importance in rapid and precise detection for environmental pollution prevention, disease diagnosis and treatment, as well as food freshness assessment. As a prototypical p-type semiconductor, cuprous oxide (Cu?O) has been extensively exploited in constructing chemiresistive gas sensors for highly selective H?S detection, owing to its pronounced chemical affinity toward H2S molecules. This review addresses the demands for H2S detection by systematically analyzing the sensing mechanisms of Cu2O to H2S and strategies for enhancing gas-sensing performance. It particularly elucidates the gas-sensing enhancement mechanisms from two perspectives: (1) Improving sensor sensitivity by constructing heterojunctions through compositing with metal oxides, two-dimensional materials, and noble metals; (2) Enhancing anti-humidity interference capability via surface modification engineering including constructing water-absorption layers, eliminating surface hydroxyl groups, and applying hydrophobic layers. The challenges of Cu2O as room-temperature and high-temperature sensing materials in H2S detection are summarized, and prospects for advancing the application of Cu2O-based sensing materials are presented. |
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