[1]夏丽娟,温 慧,张 航,等.花状Fe/CeO2固溶体多级结构的合成与电化学性能研究[J].江西师范大学学报(自然科学版),2017,(06):557-561.
　XIA Lijuan,WEN Hui,ZHANG Hang,et al.The Synthesis and Electrochemical Performance of Flower-Like Hierarchical Fe/CeO2 Solid Solution[J].Journal of Jiangxi Normal University:Natural Science Edition,2017,(06):557-561.
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花状Fe/CeO2固溶体多级结构的合成与电化学性能研究()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年06期
页码:
557-561
栏目:
出版日期:
2017-12-01

文章信息/Info

Title:
The Synthesis and Electrochemical Performance of Flower-Like Hierarchical Fe/CeO2 Solid Solution
作者:
夏丽娟; 温 慧; 张 航; 王 雷; 钟声亮
江西师范大学化学化工学院,江西 南昌 330022
Author(s):
XIA Lijuan; WEN Hui; ZHANG Hang; WANG Lei; ZHONG Shengliang
College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang Jiangxi 330022, China
关键词:
溶剂热法;  二氧化铈;  稀土;  超级电容器
Keywords:
solvothermal method;  cerium oxide;  rare earth;  supercapacitor
分类号:
O 611.4
文献标志码:
A
摘要:
以Ce(NO3)3·6H2O和无水FeCl3为原料、乙二醇为溶剂,通过溶剂热法成功地制备了花状Fe/CeO2固溶体多级纳米结构. 考察了温度和时间对产物形貌的影响.用扫描电子显微镜(SEM)、X-射线衍射仪(XRD)、能谱分析仪(EDX)和热分析(TG)对产物进行了表征.当硝酸铈和氯化铁的物质的量的比为1:1,反应温度为180 ℃,反应时间为12 h时,产物尺寸分布均匀,为花状结构,直径约为5 μm.用循环伏安、恒流充放电和交流阻抗电化学方法研究了其电化学性能.结果表明:Fe/CeO2在2 mol·L-1的KOH电解液中发生了相互协同的氧化-还原和嵌入/脱嵌反应,有望用作超级电容器的电极材料.
Abstract:
In this paper,flower-like Fe/CeO2 Hierarchical nanostructures are successfully prepared through a hydrothermal method using Ce(NO3)3·6H2O and anhydrous FeCl3 as raw materials and ethylene glycol as solvent.The effects of reaction temperature and reaction time on the morphology of the product are investigated.The products are characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),energy dispersive spectroscopy(EDX)and thermal analysis(TG).The uniform product with a diameter of about 5 μm is obtained when the ratio of cerium nitrate(Ce(NO3)3·6H2O)and ferric chloride(FeCl3)is 1:1 after the reaction mixture is heated at 180 ℃ for 12 h.Electrochemical performance of Fe/CeO2 in 2 mol·L-1 KOH electrolyte is studied by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy(EIS).The results show that Fe/CeO2 presents the synergistic oxidation-reduction and insertion-deinsertion reaction in 2 mol·L-1 KOH electrolyte,and can be used as electrode material for supercapacitor.

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备注/Memo

备注/Memo:
收稿日期:2017-08-06基金项目:国家自然科学基金(21641008,91622105,21301078), 江西省对外科技合作计划(20151BDH80049),江西省教育厅科学技术研究(GJJ13215),江西师范大学第三批青年英才培育资助计划,江西省博士后科研,江西师范大学博士后研究人员科研,江西师范大学博士启动基金和江西师范大学校青年成长基金资助项目.通信作者:王 雷(1984-),男,安徽淮北人,副教授, 博士后, 主要从事稀土功能材料的研究.E-mail:leiwang@jxnu.e
更新日期/Last Update: 1900-01-01