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花状Fe/CeO_2固溶体多级结构的合成与电化学性能研究 被引量:1

The Synthesis and Electrochemical Performance of Flower-Like Hierarchical Fe/CeO_2 Solid Solution
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摘要 以Ce(NO_3)_3·6H_2O和无水FeCl_3为原料、乙二醇为溶剂,通过溶剂热法成功地制备了花状Fe/CeO_2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5μm.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/CeO_2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. In this paper,flower-like Fe/CeO2Hierarchical nanostructures are successfully prepared through a hydrothermal method using Ce(NO3)3·6H2O and anhydrous FeCl3as 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 about5μm is obtained when the ratio of cerium nitrate(Ce(NO3)3·6H2O)and ferric chloride(FeCl3)is1∶1after the reaction mixture is heated at180℃for12h.Electrochemical performance of Fe/CeO2in2mol·L-1KOH electrolyte is studied by cyclic voltammetry,galvanostatic charge-discharge and electrochemical impedance spectroscopy(EIS).The results show that Fe/CeO2presents the synergistic oxidation-reduction and insertion-deinsertion reaction in2mol·L-1KOH electrolyte,and can be used as electrode material for supercapacitor.
作者 夏丽娟 温慧 张航 王雷 钟声亮 XIA Lijuan;WEN Hui;ZHANG Hang;WANG Lei;ZHONG Shengliang(College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang Jiangxi 330022, China)
出处 《江西师范大学学报(自然科学版)》 CAS 北大核心 2017年第6期557-561,共5页 Journal of Jiangxi Normal University(Natural Science Edition)
基金 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 江西师范大学校青年成长基金资助项目 江西省博士后科研
关键词 溶剂热法 二氧化铈 稀土 超级电容器 solvothermal method cerium oxide rare earth supercapacitor
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  • 1朱玲,王学中,於俊杰,郝郑平.K-Ce_(0.5)Zr_(0.5)O_2催化碳颗粒物燃烧性能[J].物理化学学报,2005,21(8):840-845. 被引量:10
  • 2郑修成,张晓丽,王淑荣,于丽华,王向宇,吴世华.不同CuO/CeO_2催化剂上CO低温氧化反应[J].催化学报,2005,26(11):971-976. 被引量:23
  • 3胡震.微波制备纳米二氧化铈及其工艺因素的考察[J].无机盐工业,2007,39(6):21-24. 被引量:8
  • 4李跃军,曹铁平,刘术侠.稀土九钨镓杂多酸盐的电化学及电催化性质研究[J].江西师范大学学报(自然科学版),2007,31(4):344-346. 被引量:5
  • 5Kim J H,Jung Y K,Lee J K. Synthesis m~d characteriza- tion of hollow nanoparticles of crystalline Gd203 [ J ]. j Nanopart Res,2011,13(6) :2311-2318.
  • 6M6ndez-Ramos J, Yanes A C, Santana-Alonso A, et al. Highly efficient up-conversion and bright white light in RE co-doped KYF4 nanocrystals in sol-gel silica matrix [ J]. Chemical Physics Letters ,2013,555 : 196-201.
  • 7Wang Feng, Liu Xiaogang. Recent advances in the chemis- try of lanthanide-doped upconversion nanoerystals [ J ]o Chem Soc Rev,2009,38(4) :976-989.K.
  • 8M6ndez-Ramos J, Acosta-Mora P, Ruiz-Morales J C, et al. Heavy rare-earth-doped ZBLAN glasses for UV-blue up- conversion and white light generation [ J ]. Journal of Lu- minescence ,2013,143:479-483.
  • 9Liu Wei, Feng Lijun,Zhang Cong, et al. A facile hydrother- mal synthesis of 3D flowerlike CeO~ via a cerium oxalate precursor [ J ]. Journal of Materials Chemistry As 2013, 1 (23) :6942-6948.
  • 10Pomelova T A, Bakovets V V, Korol'kov I V, et al. On the abnormal efficiency of the luminescence of submicron- sized phosphor Y203: Eu3~ [ J]. Physics of the Solid State,2014,56 (12) :2496-2506.

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