Exploring the sensing characteristics of Ni-Cr LDH, Ni-Cr-Al LDH, and Ni-Cr LDH/TiO2 for acetone and ethanol detection at room temperature

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Applied Physics A Pub Date : 2025-01-17 DOI:10.1007/s00339-025-08238-y

Seyedeh Ozra Gheibi, Abdollah Fallah Shojaei, Alireza Khorshidi, Seyed Mohsen Hosseini-Golgoo

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Abstract

Based on the distinctive characteristics of Layered Double Hydroxides (LDHs), extensive research has focused on their sensory properties and their application as electrochemical and gas sensors using various methods such as cataluminescence (CTL) and resistance measurements. In this study, we have rigorously examined the sensing capabilities of the Ni-Cr LDH sensor in the presence of acetone and ethanol at room temperature. Subsequently, we have compared these results with the sensing properties of the Ni-Cr-Al LDH and Ni-Cr LDH/TiO₂ sensors under identical conditions, leading to a comprehensive discussion on the impact of Al³⁺ and titanium oxide on the sensors’ sensing properties. The Ni-Cr LDH/TiO₂ sensor showed better sensitivity to acetone and ethanol than the other two sensors. Besides, the Ni-Cr LDH/TiO₂ sensor exhibited shorter recovery and response times in the presence of acetone. Conversely, the Ni-Cr LDH sensor had quicker recovery and response times in the presence of ethanol, outperforming the other sensors.

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探索室温下Ni-Cr LDH、Ni-Cr- al LDH和Ni-Cr LDH/TiO2对丙酮和乙醇检测的传感特性

基于层状双氢氧化物（LDHs）的独特特性，广泛的研究集中在其感官特性及其作为电化学和气体传感器的应用上，采用各种方法，如催化发光（CTL）和电阻测量。在本研究中，我们严格检查了Ni-Cr LDH传感器在室温下丙酮和乙醇存在下的传感能力。随后，我们将这些结果与相同条件下Ni-Cr- al LDH和Ni-Cr LDH/TiO2传感器的传感性能进行了比较，从而全面讨论了Al3+和氧化钛对传感器传感性能的影响。Ni-Cr LDH/TiO2传感器对丙酮和乙醇的灵敏度高于其他两种传感器。此外，Ni-Cr LDH/TiO2传感器在丙酮存在下具有较短的恢复和响应时间。相反，Ni-Cr LDH传感器在乙醇存在下具有更快的恢复和响应时间，优于其他传感器。

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.