期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 5, 期 10, 页码 1648-1652出版社
AMER CHEMICAL SOC
DOI: 10.1021/jz500602r
关键词
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Nonaqueous Mg-O-2 batteries are suitable only as primary cells because MgO precipitates formed during discharging are not decomposed electrochemically at ambient temperatures. To address this problem, the present study examined the ability of the 2,2,6,6-tetramethylpiperidine-oxyl (TEMPO)-anion complex to catalyze the decomposition of MgO. It was determined that this complex was capable of chemically decomposing MgO at 60 degrees C. A catalytic cycle for the realization of a rechargeable Mg-O-2 electrode was designed by combining the decomposition of MgO via the TEMPO-anion complex and the TEMPO-redox couple. This work also demonstrates that a nonaqueous Mg-O-2 battery incorporating acrylate polymer having TEMPO side units in the cathode shows evidence of being rechargeable.
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