非晶态负载碳WO3纳米片阵列用于ppb级二氧化氮传感及抗湿性能的改进

IF 9.1 1区化学 Q1 CHEMISTRY, ANALYTICAL

ACS Sensors Pub Date : 2025-03-18 DOI:10.1021/acssensors.4c03701

Yichao Wang, Xi Li, Chuanxin Ge, Guiwu Liu, Guanjun Qiao, Mingsong Wang

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引用次数: 0

摘要

金属氧化物气体传感器因其低成本、高灵敏度、快速响应、易于小型化和集成而引起了人们的广泛关注。不幸的是，金属氧化物容易受到水分的干扰，导致传感层羟基中毒，基线电阻下降，传感器性能下降。在本研究中，用多孔非晶碳层修饰WO3薄膜。负载的非晶态碳层同时提高了WO3的吸附能力和表面的疏水性，使复合膜不仅具有十亿分之一的NO2敏感性，而且还增强了对湿度的免疫力。非晶碳与金属氧化物的结合有望成为制造高性能、抗湿气体传感器的一般途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Amorphous Carbon-Loaded WO3 Nanosheet Arrays for ppb-Level NO2 Sensing with Improved Anti-Humidity Property

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Amorphous Carbon-Loaded WO3 Nanosheet Arrays for ppb-Level NO2 Sensing with Improved Anti-Humidity Property

Metal-oxide-based gas sensors have attracted considerable interest due to their low cost, high sensitivity, quick response, and ease of miniaturization and integration. Unfortunately, metal oxides are susceptible to the interference of moisture, which brings about hydroxyl poisoning of the sensing layer and decrement in baseline resistance and sensor performance. In this study, WO₃ films were modified with a porous amorphous carbon layer. The as-loaded amorphous carbon layer improves simultaneously the adsorption capacity of WO₃ and hydrophobicity of the surface, which endows the composite films with not only surpassing NO₂ sensitivity at the parts per billion level but also enhanced immunity to humidity. The incorporation of amorphous carbon with metal oxides is expected to be a general route for the fabrication of high performance, antihumidity gas 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.