化工新型材料

化工新型材料 ›› 2023, Vol. 51 ›› Issue (5) : 106-112. DOI: 10.19817/j.cnki.issn1006-3536.2023.05.019

新材料与新技术

具有高比电容的纳米Ni-MOF/GO的制备及赝电容特性研究

^2,3*

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Preparation and pseudocapacitance performance of Ni-MOF/GO nanomaterial with high specific capacitance

Sun Yang¹, Cheng Ziyang², Wei Juyuan², Li Xinyu², Fang Jingyi², Wang Meifang^2,3

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Received		Published
2022-01-17		2023-05-20
Issue Date	Revised Date
2023-05-31	2022-01-17

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摘要

以不同温度和不同制备时间作为实验条件,采用溶剂热法制备了1^#、2^#、3^#三类Ni-MOF材料。然后,将MOF材料中的3^#和氧化石墨烯(GO)等多孔碳材料复合,测得其具有优异的电化学性能。3^#在50mA/g时的比电容达700F/g,在500mA/g通过100次循环后仍有电容为222F/g,可保持3^#器件初始电容的58.9%以上。3^#/GO在500mA/g时表现出412F/g的高质量比电容,并且在100次循环后,保持其初始电容的72%以上。该器件的最大能量密度和最大功率密度分别为11.58Wh/kg和46.32W/kg。通过X射线衍射、X射线光电子能谱技术、比表面积和氮气吸脱附、红外光谱和扫描电子显微镜等测试,证实了GO能显著地改善MOF赝电容的电化学性能。

Abstract

Three types of Ni-MOF materials,1^#,2^# and 3^#,were prepared by solvothermal method at different temperature and preparation time.Then,the 3^# material was compounded with graphene oxide (GO) and other porous carbon materials,and their excellent electrochemical performance was measured.3^# had a specific capacitance of 700F/g at 50mA/g and still had a capacitance of 222F/g at 500mA/g after 100 cycles.Moreover,it could maintain more than 58.9% of the initial capacitance.3^#/GO exhibited a higher specific capacitance of 412F/g at 500mA/g,and maintained more than 72% of its initial capacitance after 100 cycles.The maximum energy density and maximum power density of the device were 11.58Wh/kg and 46.32W/kg,respectively.XRD,XPS,BET,FT-IR and SEM tests confirmed that GO could significantly improve the electrochemical performance of the MOF pseudocapacitor.

关键词

赝电容 / MOF / 氧化石墨烯

Key words

pseudocapacitors / MOF / graphene oxide

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具有高比电容的纳米Ni-MOF/GO的制备及赝电容特性研究[J]. 化工新型材料, 2023, 51(5): 106-112 DOI:10.19817/j.cnki.issn1006-3536.2023.05.019

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基金资助

安徽工程大学引进人才科研启动基金项目(2020YQQ014);2020年省级大学生创新训练计划(S202010368053);“洁净能源材料与资源物质转化化学”安徽省重点实验室开放基金资助项目(LCECSC-14);安徽省高等教育自然科学基金项目(KJ2020A0619);抗炎免疫药物教育部重点实验室基金项目(KFJJ-2020-10)

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