期刊
ELECTROCHIMICA ACTA
卷 123, 期 -, 页码 278-284出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.01.033
关键词
Tetraphenylporphyrin(TPP); Ni-Zn battery; Modified; Zinc dendrite
资金
- Natural Science Foundation of China [21371180, 91023031]
- Doctoral Fund of Ministry of Education of China [20130162110 018]
- Ministry of Education of China [20130162110 018]
- Science and Technology Project of Changsha city [k1303015-11, k1203014-11]
The cycle life of zinc anode in alkaline medium was enhanced by tetraphenylporphyrin (TPP) as modifier through a facile co-precipitation method. The as-prepared electrode material before and after charge/discharge test were characterized by scanning electron microscopy (SEM) to investigate the effect of TPP on the zinc dendrite growth. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and polarization measurement were utilized to examine the electrochemical performances of TPP-modified ZnO as anode material. TPP-modified ZnO possess higher discharge voltage, higher cycle stability and lower corrosion current, but larger charge-transfer resistance in comparison with bare ZnO. (C) 2014 Elsevier Ltd. All rights reserved.
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