| CoOOH用作阴极催化剂对非水性锂-氧气电池性能的影响 | |
| CoOOH as Cathode Catalyst for High Performance Non-Aqueous Li-O2 Batteries | |
| 摘要: 利用工艺简单，成本低廉的共沉淀法制得CoOOH，并用作非水性锂-氧气电池阴极催化剂。通过恒流充放电、线性伏安扫描（LSV）和电化学阻抗（EIS）测试研究了电极的电化学性能。结果表明：由于CoOOH能够明显提高氧气还原反应（ORR）的催化活性，与未使用CoOOH的电极相比较，使用CoOOH为催化剂的电极首次放电容量高达5 093 mAh·g-1，提高了1.7倍。电池的充电过电压降低了约460 mV，充电可逆性得到增强，充放电可逆性提高，使得循环性能得到显著改善。 | |
| 关键词: 锂-氧气电池 CoOOH 催化剂 高性能 | |
| 基金项目: 中物院——川大协同创新联合基金（No.XTCX2014001）和四川大学青年教师科研启动基金（No.2015SCU11055）资助项目。 | |
| Abstract: CoOOH was synthesized by a simple one-step co-precipitation method, and used as cathode catalyst in non-aqueous Li-O2 batteries. The introduction of CoOOH could catalyze the oxygen reduction reaction (ORR) upon discharge, making the CoOOH-contained cathode display a high discharge capacity of 5 093 mAh·g-1, which was about 1.7 times higher than that of the CoOOH-free cathode. Furthermore, the CoOOH-contained cathode exhibited a significantly reduced recharge overpotential (460 mV), enhancing recharge-ability. Thus, the reversibility was improved, and the cycling performance was ameliorated. | |
| Keywords: Li-O2 battery CoOOH catalyst high performance | |
| 投稿时间：2016-07-26 修订日期：2016-10-07 | |
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| 蔡生容,王晓飞,朱丁,母仕佳,张开放,黄利武,陈云贵.CoOOH用作阴极催化剂对非水性锂-氧气电池性能的影响[J].无机化学学报,2016,32(12):2082-2087. | |
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