用于湿度传感的煤衍生还原氧化石墨烯可丝网印刷的可持续水性功能油墨

IF 2.2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Letters Pub Date : 2024-12-04 DOI:10.1109/LSENS.2024.3510873

Marini L;Dinesh Kumar S;Suman K Jhajharia;MK Padmanabhan;Roop L Mahajan;Chithra Lekha P

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引用次数: 0

摘要

在这封信中，我们开发了一种可持续的水性导电油墨，使用煤衍生的还原氧化石墨烯（C-rGO），用羧甲基纤维素钠稳定。这种油墨具有高导电性（~ 4.1 S/m）和在各种基材上的良好印刷性，包括聚对苯二甲酸乙二醇酯（PET）、Whatman纸和Flexzil。丝网印刷在柔性的、可生物降解的柔性基材上表现出优异的附着力和均匀的形态。测试了墨水的湿度敏感性，在相对湿度为30%-80%的范围内显示出85%的阻力变化。简便的一锅合成方法确保了成本效益和可扩展性。这使得C-rGO油墨适用于可穿戴电子产品，柔性传感器和环境监测，为传统导电油墨提供了可持续的替代品。

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Screen Printable, Sustainable Water-Based Functional Ink From Coal-Derived Reduced Graphene Oxide for Humidity Sensing

In this letter, we develop a sustainable water-based conductive ink using coal-derived reduced graphene oxide (C-rGO) stabilized with sodium carboxymethyl cellulose. This ink exhibits high conductivity (∼4.1 S/m) and good printability on various substrates, including polyethylene terephthalate (PET), Whatman paper, and Flexzil. Screen printing on flexible, biodegradable Flexzil substrates shows excellent adhesion and uniform morphology. The ink's humidity sensitivity was tested, displaying an 85%-resistance change over a range of 30%–80% relative humidity. The facile one-pot synthesis method ensures cost-effectiveness and scalability. This makes the C-rGO ink suitable for applications in wearable electronics, flexible sensors, and environmental monitoring, offering a sustainable alternative to traditional conductive inks.

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来源期刊

IEEE Sensors Letters Engineering-Electrical and Electronic Engineering

CiteScore

3.50

自引率

7.10%

发文量

194