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 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.