Co2+-和Fe3+-掺杂h-WO3对有毒气体的感觉特性

IF 1.5 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2025-07-09 DOI:10.1134/S003602362560056X

N. V. Podval’naya, A. V. Marikutsa, G. S. Zakharova

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引用次数: 0

摘要

研究了h-CoxWO3（0≤x≤0.09）、h-W1 - xFexO3（0≤x≤0.06）固溶体以及m-WO3在最大允许浓度下对空气中各种有毒气体的感觉特性。在h-WO3中掺杂Co2+或Fe3+离子不会影响对CH3COCH3和NH3的感觉响应灵敏度，但会导致对NO2的感觉信号减弱。对六方和单斜三氧化钨的感官性能进行了比较分析。在检测CH3COCH3和NH3时，h-WO3的灵敏度分别是m-WO3的1.5倍和1.3倍。氧空位浓度和孔体积是m-WO3对NO2敏感性高于h-WO3的关键参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Sensory Properties of Co2+- and Fe3+-Doped h-WO3 Towards Toxic Gases

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Sensory Properties of Co2+- and Fe3+-Doped h-WO3 Towards Toxic Gases

The sensory properties of h-Co_xWO₃ (0 ≤ x ≤ 0.09) and h-W_{1 –} _xFe_xO₃ (0 ≤ x ≤ 0.06) solid solutions, as well as m-WO₃, have been studied in relation to various toxic gases at the maximum permissible concentrations in the air. Doping h-WO₃ with Co²⁺ or Fe³⁺ ions does not affect the sensitivity of the sensory response to CH₃COCH₃ and NH₃ but leads to a decrease in the sensory signal towards NO₂. A comparative analysis of the sensory properties of hexagonal and monoclinic tungsten trioxide has been performed. When detecting CH₃COCH₃ and NH₃, the sensitivity of h-WO₃ is, respectively, ~1.5 and ~1.3 times higher than that of m-WO₃. The oxygen vacancy concentration and pore volume are the key parameters responsible for the higher sensitivity of m-WO₃ to NO₂ compared to h-WO₃.

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.