文献类型：期刊文献

英文题名：Silk-Waste-Derived Porous Carbon for Fast Electric Heating under Safe Voltage

作者：Xu, Qiao[1,2];Si, Yinsong[1];He, Rui[1];Qi, Xiaoming[1];Su, Xiuping[2];Fu, Yaqin[1]

机构：[1]Zhejiang Sci Tech Univ, Sch Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China;[2]Shaoxing Univ, Sch Text Apparel & Art Design, Yuanpei Coll, Shaoxing 312000, Zhejiang, Peoples R China

年份：2022

卷号：14

期号：4

起止页码：6005

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：SCI-EXPANDED(收录号：WOS:000768792500114)、、EI(收录号：20220611588290)、Scopus(收录号：2-s2.0-85123957408)、WOS

基金：This work was supported by the National Natural Science Foundation of China (U20A20264 and 52003243), China Agriculture Research System of MOF and MARA, Zhejiang Provincial Natural Science Foundation of China (LQ21E030010), the High-level Talents Startup Funds of Zhejiang Sci-Tech University (19012394-Y), and the Fundamental Research Funds of Zhejiang Sci-Tech University (2021Q013).

语种：英文

外文关键词：silk waste; activator; pore structure; safe voltage; electric heating

外文摘要：Fast and safe electric heating is highly needed in extreme climates or thermal therapy. Herein, porous activated carbon derived from silk waste is prepared by a simple method. Various porous activated carbons are obtained using different types and concentrations of activator (KOH, KCl, and KHCO3). The effect of the microstructure on the electric heating performance of these carbons is investigated carefully. The type, activator concentration, and carbonization temperature play key roles in the regulation of electric heating properties. The porous carbon activated by 0.05 M KHCO3 at 800 degrees C demonstrates larger specific surface area (3077 m(2) g(-1)), higher graphitization degree, and lower resistance (2.4 Omega cm), which synergistically contribute greatly to its higher electrothermal efficiency and better electric heating performance. The equilibrium temperature could reach 73 degrees C in 2 min under a safe voltage of 12 V, proving the better pore-forming capacity and activating function of KHCO3. An electric heating cotton@carbon composite fabric with quite good electric heating property and stability is also prepared, which could reach 38 degrees C in 2 min under 12 V safe voltage and maintain a temperature 10 degrees C higher than the ambient temperature even when bent at an angle of 55 degrees. This activated carbon derived from waste protein using a simple and cheap process has great potential in practical applications.