Dual-Emitter Graphene Glass Fiber Fabric for Radiant Heating

Abstract

Radiant heating, as a significant thermal management technique, is best known for its high thermal effect, media-free operation, good penetration, and compatibility for different heated shapes. To promote sustainable development in this area, developing advanced infrared radiation material is in high demand. In this work, a lightweight, flexible dual-emitter infrared electrothermal material, graphene glass fiber (GGF), is developed by chemical vapor deposition (CVD) method, with both graphene and glass fiber as the radiation elements. Large-area GGF fabric (GGFF) exhibits wavelength-independent high infrared emissivity (0.92) and thermal radiation efficiency (79.4%), as well as ultrafast electrothermal response (190.7 °C s–1 at 9.30 W cm–2) and uniform heating temperature. The superior radiant heating capability of GGFF to traditional alloy heating wires can achieve 33.3% energy saving. GGF can promote the development of efficient and energy-saving heat management technology.

Nanotechnology in the Olympic Winter Games and Beyond

“…(c) Simplified schematic diagram of the heat transfer process of the graphene system: (1) thermal conduction; (2) thermal radiation. (Reproduced with permission from ref , Copyright 2017 American Chemical Society; ref , Copyright 2022 American Chemical Society)…”

“…Consequently, graphene-based electronic heating textiles show great potential in wearable warming systems and thermotherapy. In winter outdoor sports, clothes with graphene composite nanofibers keep athletes warm mainly by heat conduction and thermal radiation (Figure c) . When there is a current passing through the graphene composite nanofiber, Joule heat will be generated (process 1).…”

“…Meanwhile, the thermal movement of carbon atoms within the graphene lattice will generate infrared rays (process 2), which can raise the temperature and promote blood circulation. The infrared emissivity can be further enhanced by introducing some materials with intrinsic infrared radiation, such as glass fiber . In the future, this technology will also lead to more professional products in the fields of the automotive thermal management system, special heated clothing and apparel for the low-temperature environment, medical and health equipment.…”

“…In winter outdoor sports, clothes with graphene composite nanofibers keep athletes warm mainly by heat conduction and thermal radiation (Figure 6c). 27 When there is a current passing through the graphene composite nanofiber, Joule heat will be generated (process 1). Meanwhile, the thermal movement of carbon atoms within the graphene lattice will generate infrared rays (process 2), which can raise the temperature and promote blood circulation.…”

Complementary Chemical Vapor Deposition Fabrication for Large‐Area Uniform Graphene Glass Fiber Fabric

“…[22][23][24] Notably, CVD growth of graphene is pretty applicable for the conformal and full-surface covering of graphene films on the irregularly-shaped target substrates, such as glass fiber. [25][26][27][28] Therefore, the CVD method was used in this work for the combination of graphene and glass fiber fabric (GFF) to prepare an advanced electrothermal material, called graphene glass fiber fabric (GGFF). In the CVD growth of graphene on the non-catalytic substrate, the low-pressure CVD (LPCVD) is commonly used to improve the mass-transport rate and concentration uniformity of active carbon species in the growth zone to enhance the growth efficiency and thickness uniformity of graphene film on the substrate.…”