电池2024，Vol.54Issue(6)：777-781,5.DOI:10.19535/j.1001-1579.2024.06.004
γ射线辐照对竹炭电极电容性能的影响
Effect of γ-ray irradiation on capacitance performance of bamboo carbon electrode
摘要
Abstract
By using bamboo experienced γ-ray irradiation as raw materials,bamboo carbon electrode materials are prepared through the one-step microwave carbonization process.The physical properties of bamboo carbon samples with different doses of γ-ray irradiation are characterized by low-temperature N2 adsorption/desorption,XRD and SEM tests.The electrochemical capacitive performances are tested by cyclic voltammetry and galvanostatic charge-discharge tests.The influence law is studied for the γ-ray irritation on the capacitive performance of the bamboo carbon samples.The optimum irradiation dose is 1 million Gy.The optimized bamboo carbon AC-100 sample shows the specific surface of 988 m2/g with an average pore size of 2.38 nm.The bamboo carbon is used as the active material to prepare electrode,the supercapacitor is assembled by using 6 mol/L KOH solution as the electrolyte.When charged and discharged in 0-1 V,it shows good rate capability and cycle stability.The specific discharge capacitance reaches 295 F/g at 0.2 A/g.When the current is increased to 10.0 A/g,the specific capacitance is still 244 F/g.The capacitance retention rate is 99.5%after 5 000 cycles at 0.2 A/g.关键词
超级电容器/电极材料/活性炭/竹炭/γ射线辐照Key words
supercapacitor/electrode material/activated carbon/bamboo carbon/γ-ray irradiation分类
信息技术与安全科学引用本文复制引用
杨胜杰,张家幸,方华,王军,梁峰..γ射线辐照对竹炭电极电容性能的影响[J].电池,2024,54(6):777-781,5.基金项目
河南省高等学校重点科研项目(20B530006) （20B530006）
