Ni(OH)_(2)/石墨相氮化碳/石墨烯三元复合材料的制备及电化学性能  

Preparation and electrochemical properties of Ni(OH)_(2)/graphitized carbon nitride/graphene ternary composites

作　　者：刘斌[1] 王艳敏 马倩 崔金龙 张永强[1] 赫文秀[1] LIU Bin;WANG Yan-min;MA Qian;CUI Jin-long;ZHANG Yong-qiang;HE Wen-xiu(School of Chemistry and Chemical Engineering,University of Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学化学与化工学院,内蒙古包头市014010

出　　处：《新型炭材料（中英文）》2022年第6期1193-1200,共8页New Carbon Materials

基　　金：国家自然科学基金(21766024)。

摘　　要：通过水热法获得Ni(OH)_(2)/石墨相氮化碳(g-C_(3)N_(4))/石墨烯(RGO)三元复合材料,研究了Ni(OH)_(2)∶g-C_(3)N_(4)∶RGO质量比对复合材料物理结构以及电化学性能的影响。通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)、傅里叶转换红外光谱仪(FT-IR)、氮气物理吸脱附仪、透射电子显微镜(TEM)等方法来反应材料的微观结构以及还原程度,使用循环伏安(CV)、恒流充放电(GCD)及电化学交流阻抗(EIS)测试电极材料的电化学性能。结果表明:当Ni(OH)_(2)∶g-C_(3)N_(4)∶RGO=16∶1∶1(质量比)时电极材料呈3D相互交错的片状结构,氧化峰和还原峰的电位差ΔE为0.218 V。在1 A/g的电流密度下,复合材料的比电容为516.9 F/g,充放电3000次循环后,容量保持率达74.3%,显示出良好的电化学性能。Ni(OH)_(2)/graphitized carbon nitride(g-C_(3)N_(4))/reduced graphene oxide(RGO)ternary synthetics were prepared by a hydrothermal method.The effect of different mass ratios of the three components on the microstructure,morphology and electrochemical properties of the synthetics was investigated.The outside microstructure and extent of redox of the material were characterized by XRD,SEM,FTIR,nitrogen adsorption and TEM.The composite properties of the synthetics were examined use cyclic voltammetry(CV),galvanostatic charge-discharge(GCD)and electrochemical impedance spectroscopy(EIS).The consequences reveal that the ternary composite represents three-dimensional slice space interlaced structure when the quality proportion of Ni(OH)_(2),g-C_(3)N_(4) and RGO are 16∶1∶1,and theΔE is 0.218 V.When the current density is 1 A/g,the specific capacitance of the synthetic material is 516.9 F/g.After 3000 cycles of charge-discharge,the capacity retention rate is 74.3%,which revealedoutstanding electrochemical performance.

关 键 词：水热法 电极材料 石墨相氮化碳 石墨烯 电化学性能 

分 类 号：TQ150.7[化学工程—电化学工业]