A one-step approach to green and scalable production of graphene inks for printed flexible film heaters,Materials Chemistry Frontiers

当前位置： X-MOL 学术 › Mater. Chem. Front. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A one-step approach to green and scalable production of graphene inks for printed flexible film heaters
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2020-12-15 , DOI: 10.1039/d0qm00803f
Lingyun Xu _{1,

2,

3,

4,

5} , Haopeng Wang _{1,

2,

3,

4,

5} , Yadong Wu _{5,

6,

7,

8,

9} , Zian Wang _{5,

6,

7,

8,

9} , Lixin Wu _{5,

6,

7,

8,

9} , Longhui Zheng _{5,

6,

7,

8,

9}

Affiliation

In recent years, the fabrication of printable graphene inks has attracted considerable attention. However, obtaining green and scalable production of these types of inks with high electrical conductivity using simple methods has always been challenging. Herein, a novel one-step method for preparing graphene inks by microfluidization was developed. Moreover, the resistances of graphene film heaters based on the condensed graphene inks using the screen printing method were adjustable. The results show that the obtained inks contained 1 to 5 layers of graphene with high quality. The prepared graphene films exhibit high electrical conductivity (9.7 × 10⁴ S m⁻¹) and their heaters have fast heat-generating performance; typically, after 5 printing passes, the heater reaches a high temperature of 111 °C within 100 s under 3.0 V, and further rising to a higher temperature of 193.4 °C under 5.0 V. Favorable flexibility and durability are also maintained; specifically, no apparent change of resistance of the graphene film heater can be detected after 5000 times of bending and flexing. The prepared flexible graphene film can be used for heating elements and wearable devices.

中文翻译：

一步实现绿色环保，可扩展生产的用于印刷柔性薄膜加热器的石墨烯油墨

近年来，可印刷石墨烯油墨的制造引起了相当大的关注。然而，使用简单的方法获得具有高电导率的这些类型的油墨的绿色且可扩展的生产一直是挑战。本文中，开发了一种通过微流化制备石墨烯油墨的新型一步法。此外，使用丝网印刷方法的基于冷凝石墨烯油墨的石墨烯薄膜加热器的电阻是可调的。结果表明，所获得的油墨包含1至5层高质量的石墨烯。制备的石墨烯薄膜具有高电导率（9.7×10 ⁴ S m ^-1）及其加热器具有快速的发热性能；通常，经过5次打印后，加热器在3.0 V下于100 s内达到111°C的高温，并在5.0 V下进一步升至193.4°C的高温。还保持了良好的柔韧性和耐用性；具体而言，在弯曲和挠曲5000次之后，不能检测到石墨烯膜加热器的电阻的明显变化。制备的柔性石墨烯薄膜可用于加热元件和可穿戴设备。

更新日期：2021-01-04

点击分享查看原文

点击收藏

阅读更多本刊新发论文