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电化学(中英文) ›› 2015, Vol. 21 ›› Issue (2): 157-161.  doi: 10.13208/j.electrochem.141049

• 化学电源及其材料近期研究专辑(客座编辑:复旦大学 夏永姚教授) • 上一篇    下一篇

锂空气电池高容量长寿命Co3O4纳米空心球阴极催化剂

刘通1,2,李娜1,2,刘清朝1,3,张新波1*   

  1. 1. 中国科学院长春应用化学研究所,稀土国家重点实验室,吉林 长春 130022;2. 中国科学院大学,北京 100049;3. 吉林大学材料科学与工程学院,吉林 长春 130012
  • 收稿日期:2014-11-03 修回日期:2015-02-01 出版日期:2015-04-28 发布日期:2015-04-23
  • 通讯作者: 张新波 E-mail:xbzhang@ciac.ac.cn
  • 基金资助:

    基金委优青(No. 21422108)资助

Porous Co3O4 Hollow Nanospheres Cathode Catalyst for High-capacity and Long-cycle Li-Air Batteries

LIU Tong1, 2, LI Na1, 2, LIU Qing-chao1,3, ZHANG Xin-bo1*   

  1. 1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. School of Materials Science and Engineering, Jilin University, Changchun 130012, China
  • Received:2014-11-03 Revised:2015-02-01 Published:2015-04-28 Online:2015-04-23
  • Contact: ZHANG Xin-bo E-mail:xbzhang@ciac.ac.cn

摘要: 以六水合硝酸钴(Co(NO3)2·6H2O)、六次甲基四胺(HMT)、蔗糖、柠檬酸钠(Na3C6H5O7)为原料,140 oC下水热碳化处理即得反应前驱物,经煅烧处理后,可得多孔Co3O4纳米空心球. 锂空气电池Co3O4/SP阴极催化剂具有优异的循环寿命性能,这归因于Co3O4空心球的纳米颗粒构成、较高比表面积的多孔结构,为电池反应提供了大量的反应位点,为充放电产物提供了足够的存储空间.

关键词: Co3O4空心球, 锂空气电池, 长寿命, 水热法

Abstract: In this paper, a high specific surface area of porous Co3O4 hollow nanospheres was successfully synthesized via hydrothermal carbonization at 140 oC, followed by calcination using cobalt nitrate hexahydrate (Co(NO3)2·6H2O), hexamethylenetetramine (HMT), sucrose, and sodium citrate (Na3C6H5O7). The porous Co3O4 hollow nanospheres consisted of nanoparticles with high specific surface area of mesoporous structure, and could provide active reaction sites for OER and ORR. When used as lithium-air battery cathode catalyst, the Co3O4/Super P (SP) electrode exhibited excellent cycle performance, resulting in high capacity and long life of lithium-air batteries.

Key words: Co3O4 hollow spheres, lithium-air batteries, long life, hydrothermal

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