| 掺铝、钴纳米α-Ni(OH)2的固相合成及电化学性能研究 |
| Solid State Synthesis and Electrochemical Performances of Al-Co-doping Nano α-Ni(OH)2 |
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| 摘要: 固相法合成了不同铝、钴配比的纳米α-Ni0.8CozAl0.2-z(OH)2.2-z-0.5y(CO3)y·xH2O。采用XRD、FTIR、SEM、CT和恒电流充放电等对其组成、晶相结构和电化学性能进行表征和测定。实验表明，掺Co的物质的量分数在5%～8%时有较高的放电比容量、较好的循环稳定性和电极可逆性， |
| 关键词: 纳米 α-Ni(OH)2 掺铝、 钴 固相合成 |
| 基金项目: |
| Abstract: The nano α-Ni(OH)2 of doping different Al and Co ratio were synthesized by solid-state reaction, then their constitution, conformation and electrochemical performance were determined by XRD, FTIR,SEM, CT and gavanostatic charge-discharge test. Furthermore it was found that the α-Ni0.8CozAl0.2-z(OH)2.2-z-0.5y(CO3)y·xH2O(z=0.05～0.08) sample had higher discharge specific capacity, stability and electrode reversibility. The multiple function of Co3+ had fully been displayed in enhancing the conductivity, α phase structure stability. The results are significant to the use of α-Ni(OH)2. |
| Keywords: nanometer α-Ni(OH)2 Al-Co-doping solid state synthesis |
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| 摘要点击次数: 1714 |
| 全文下载次数: 2002 |
| 庄玉贵,林东风,陈秀宇.掺铝、钴纳米α-Ni(OH)2的固相合成及电化学性能研究[J].无机化学学报,2009,25(8):1336-1341. |
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