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<p>This work provides an overview of metal oxide nanomaterials in gas sensing, focusing on their synthesis methods and sensing mechanisms. Due to their large surface area and catalytic activity, these nanomaterials are highly effective for gas detection. The review details the physical, chemical, optical, and electronic properties of cutting-edge gas-sensing metal oxide nanomaterials. It assesses their key performance metrics, including sensitivity, selectivity, reversibility, operating temperature, detection limit, response time, and recovery time. The analysis also explores challenges and future prospects, emphasizing the importance of factors like morphology control, doping, surface modification, and atomic-level characterization. the review provides valuable insights into the current state and future potential of metal oxide nanomaterial gas sensors, revealing both their limitations and opportunities for advancement in various applications.</p>

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A review of novel metal oxide nanomaterials sensing mechanisms and synthesis techniques for gas sensing applications

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月12日

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  • Lemma Tirfie Zegbreal,
  • Newayemedhin A. Tegegne,
  • Fekadu Gashaw Hone

摘要

This work provides an overview of metal oxide nanomaterials in gas sensing, focusing on their synthesis methods and sensing mechanisms. Due to their large surface area and catalytic activity, these nanomaterials are highly effective for gas detection. The review details the physical, chemical, optical, and electronic properties of cutting-edge gas-sensing metal oxide nanomaterials. It assesses their key performance metrics, including sensitivity, selectivity, reversibility, operating temperature, detection limit, response time, and recovery time. The analysis also explores challenges and future prospects, emphasizing the importance of factors like morphology control, doping, surface modification, and atomic-level characterization. the review provides valuable insights into the current state and future potential of metal oxide nanomaterial gas sensors, revealing both their limitations and opportunities for advancement in various applications.