Co3O4 纳米结构的制备、形貌控制及其气体传感特性

IF 1.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY MRS Communications Pub Date : 2024-03-20 DOI:10.1557/s43579-024-00545-4
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引用次数: 0

摘要

摘要 通过一种简便的氟介导水热法制备了 Co3O4 纳米棒和纳米片,然后进行了热转换。Co3O4 纳米棒和纳米片都呈现出尖晶石结构,在一维和二维上都有 30 nm 的纳米晶粒。经鉴定,Co3O4 纳米棒的主要暴露面为 (110),而 Co3O4 纳米片的主要暴露面为 (112)。气体传感结果表明,Co3O4 纳米棒传感器具有更高的灵敏度。在 200°C 温度条件下,Co3O4 纳米棒传感器对甲苯和二甲苯具有极佳的灵敏度,因此有望用于检测这些特定的挥发性有机化合物。 图解摘要 Co3O4 纳米棒传感器在 200°C 时对测试气体的响应。
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Preparation and morphology controlling of Co3O4 nanostructures and their gas-sensing properties

Abstract

Co3O4 nanorods and nanosheets were prepared via a facile fluorine-mediated hydrothermal method, followed by thermal conversion. Both the Co3O4 nanorods and nanosheets exhibited a spinel structure, assembling by 30 nm nanograin along one and two dimensions. The primary exposed facet of the Co3O4 nanorods was identified as (110), while the main exposed plane of the Co3O4 nanosheets was (112). Gas sensing results showed the Co3O4 nanorods sensor exhibited higher sensitivity. The Co3O4 nanorods sensor demonstrated excellent sensitivities to toluene and xylene at 200°C, making it a promising candidate for the detection of these specific volatile organic compounds.

Graphical abstract

The response of the Co3O4 nanorods sensor to the test gases at 200°C.

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来源期刊
MRS Communications
MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
10.50%
发文量
166
审稿时长
>12 weeks
期刊介绍: MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.
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