铟掺杂提高二维超薄Co3O4表面活性的TEA传感。

IF 8.2 1区化学 Q1 CHEMISTRY, ANALYTICAL

ACS Sensors Pub Date : 2025-05-21 DOI:10.1021/acssensors.5c00238

Tianrun Zheng,Yi Lu,Yilin Wang,Hong Zhou,Kang Yang,Mingxue Zhang,Yueying Liu,Fengmin Liu,Geyu Lu

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引用次数: 0

摘要

优化和提高Co3O4传感材料的表面活性对三乙胺检测的应用至关重要。本文通过水解反应制备了超薄纳米片组装而成的铟掺杂Co3O4空心微花（InCo HMfs）。在2-InCo HMfs中观察到三个不同的晶面──{11 0 0}、{11 1}和{0 0 0 1}。TEM、XPS和XAS表征结果表明，掺杂铟诱导Co2+含量的增加促进了Co3O4中高活性晶面的形成。DFT计算揭示了2-InCo HMfs气敏性能提高的原因以及in离子的多重效应。我们采用掺杂铟和水解的双重策略，显著提高了Co3O4的固有TEA传感性能，为设计高性能TEA传感器提供了新的途径。

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Increasing the Surface Activity of 2D Ultrathin Co3O4 by Indium Doping for TEA Sensing.

Optimizing and improving the surface activity of Co3O4 sensing materials are crucial for applications in triethylamine detection. Herein, indium-doped Co3O4 hollow microflowers (InCo HMfs), assembled from ultrathin nanosheets, were prepared via a hydrolysis reaction. Three distinct crystal facets─{1 1 0}, {1 1 1}, and {0 0 1}─were observed in 2-InCo HMfs. Results from TEM, XPS, and XAS characterization show that the increase of Co2+ content induced by indium doping promotes the formation of highly active crystal planes in Co3O4. DFT calculations revealed the reasons for the improvement in the gas sensing performance of 2-InCo HMfs and the multiple effects of In ions. Our dual strategy of doping with indium and hydrolysis markedly improved the intrinsic TEA sensing performance of Co3O4, offering a novel avenue for designing high-performance TEA sensors.

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来源期刊

ACS Sensors Chemical Engineering-Bioengineering

CiteScore

14.50

自引率

3.40%

发文量

372

期刊介绍： ACS Sensors is a peer-reviewed research journal that focuses on the dissemination of new and original knowledge in the field of sensor science, particularly those that selectively sense chemical or biological species or processes. The journal covers a broad range of topics, including but not limited to biosensors, chemical sensors, gas sensors, intracellular sensors, single molecule sensors, cell chips, and microfluidic devices. It aims to publish articles that address conceptual advances in sensing technology applicable to various types of analytes or application papers that report on the use of existing sensing concepts in new ways or for new analytes.