本文選題：石墨烯 + 結(jié)構(gòu)　； 參考：《遼寧工程技術(shù)大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期

【摘要】：采用天然鱗片石墨為原料,用氧化-還原法在不同還原溫度制備石墨烯,通過XRD、SEM、恒流充放電等檢測手段研究了不同工藝參數(shù)對石墨烯結(jié)構(gòu)和電性能的影響.研究結(jié)果表明:石墨烯具有片層結(jié)構(gòu),其層間距隨著還原溫度的增加而減小,都約為0.35 nm;石墨烯的半峰寬呈現(xiàn)先減小后增大的趨勢,在還原溫度為80℃時(shí)有最小值,為7.903 rad.隨著還原氧化石墨的溫度增加,材料的首次放電電容、首次充放電效率和循環(huán)性能都呈現(xiàn)先增大后減小的趨勢.材料r GO-80的首次放電電容量為141.1 F/g,500次循環(huán)后,樣品保持了首次放電容量的87.9%.
[Abstract]:Graphene was prepared from natural flake graphite by oxidation-reduction method at different reduction temperatures. The effects of different process parameters on the structure and electrical properties of graphene were studied by means of XRDX SEM and constant current charge-discharge detection.The results show that graphene has a lamellar structure, and its interlayer spacing decreases with the increase of reduction temperature, which is about 0.35 nm, and the half peak width of graphene decreases first and then increases, with the minimum value of 7.903 radat 80 鈩，

本文編號(hào)：1762420