通过 TiO2 纳米纤维-NiO 纳米粒子异质结强化丙酮气体传感器

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2024-08-31 DOI:10.1016/j.solidstatesciences.2024.107683

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引用次数: 0

摘要

我们展示了一种高比表面积传感器，它由多孔二氧化钛纳米纤维（NFs）中的氧化镍纳米颗粒（NPs）组成，对丙酮有显著的反应。最初，我们采用简单的电纺丝方法合成了含有钛（Ti）和镍（Ni）盐的聚乙烯吡咯烷酮（PVP）纳米纤维。随后对 PVP NFs 进行煅烧，形成了嵌入多孔 TiO2 NFs 中的 NiO NPs。由此产生的异质结构材料对丙酮检测有显著的响应，在 300 °C 的最佳工作温度下，空气中的电阻（Ra）与气体存在时的电阻（Rg）之比达到 83。此外，它在高相对湿度条件下也表现出稳定的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhanced acetone gas sensor via TiO2 nanofiber-NiO nanoparticle heterojunction

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Enhanced acetone gas sensor via TiO2 nanofiber-NiO nanoparticle heterojunction

We present a high surface area sensor comprising NiO nanoparticles (NPs) incorporated within porous TiO₂ nanofibers (NFs), showing a remarkable response to acetone. Initially, we synthesized Polyvinylpyrrolidone (PVP) NFs containing titanium (Ti) and nickel (Ni) salts using a simple electrospinning method. Subsequent calcination of the PVP NFs led to the formation of NiO NPs embedded within the porous TiO₂ NFs. The resulting heterostructure material exhibited a significant response to acetone detection, with a ratio of electrical resistance in air (R_a) to that in the presence of gas (R_g) reaching 83 at its optimal operating temperature of 300 °C. Furthermore, it demonstrated stable performance under high relative humidity conditions.

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.