Mesoporous amorphous binary Ru-Ti oxides as bifunctional catalysts for non-aqueous Li-O-2 batteries

Kim Jisu; Jo HeeGoo; Wu Mihye; Yoon Dae-Ho; Kang Yongku; Jung Ha-Kyun

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Mesoporous amorphous binary Ru-Ti oxides as bifunctional catalysts for non-aqueous Li-O-2 batteries

机译：介孔无定形二元ru-Ti氧化物作为非水性Li-O-2电池的双官能催化剂

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Mesoporous amorphous binary Ru-Ti oxides were prepared as bifunctional catalysts for nonaqueous Li-O-2 batteries, and their electrochemical performance was investigated for the first time. A Li-O-2 battery with mesoporous amorphous binary Ru-Ti oxides exhibited a remarkably high capacity of 27100 mAh g(-1) as well as a reduced overpotential. A GITT analysis suggested that the introduction of amorphous TiO2 to amorphous RuO2 was responsible for the enhanced kinetics toward both the oxygen reduction reaction and oxygen evolution reaction. Excellent cyclic stability up to 230 cycles was achieved, confirming the applicability of the new bifunctional catalyst in non-aqueous Li-O-2 batteries.

机译：制备中孔无定形二元ru-Ti氧化物作为非水锂-2电池的双官能催化剂，首次研究了其电化学性能。具有中孔非晶二元ru-Ti氧化物的Li-O-2电池表现出显着高的27100mAhg（-1）的容量，以及减少的过电位。 GITT分析表明，将无定形TiO2引入非晶ruO2对氧还原反应和氧气进化反应的增强动力学引入增强的动力学。实现了优异的循环稳定性，最高可达230个循环，确认新的双官能催化剂在非水性Li-O-2电池中的适用性。

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来源
《Nanotechnology》 |2017年第14期|共7页
作者
Kim Jisu; Jo HeeGoo; Wu Mihye; Yoon Dae-Ho; Kang Yongku; Jung Ha-Kyun;
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作者单位

Korea Res Inst Chem Technol Adv Mat Div 141 Gajeongro Daejeon 34114 South Korea;

Korea Res Inst Chem Technol Adv Mat Div 141 Gajeongro Daejeon 34114 South Korea;

Korea Res Inst Chem Technol Adv Mat Div 141 Gajeongro Daejeon 34114 South Korea;

Sungkyunkwan Univ Sch Adv Mat Sci &

Engn Suwon 16419 South Korea;

Korea Res Inst Chem Technol Adv Mat Div 141 Gajeongro Daejeon 34114 South Korea;

Korea Res Inst Chem Technol Adv Mat Div 141 Gajeongro Daejeon 34114 South Korea;

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正文语种 eng
中图分类特种结构材料;
关键词
amorphous; bifunctional catalyst; TiO2; RuO2; Li-O-2 battery;

机译：无定形;双官能催化剂;TiO2;Ruo2;Li-O-2电池;

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1. Mesoporous amorphous binary Ru-Ti oxides as bifunctional catalysts for non-aqueous Li-O-2 batteries [J] . Kim Jisu, Jo HeeGoo, Wu Mihye, Nanotechnology . 2017,第14期

机译：介孔无定形二元ru-Ti氧化物作为非水性Li-O-2电池的双官能催化剂
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Mesoporous amorphous binary Ru-Ti oxides as bifunctional catalysts for non-aqueous Li-O-2 batteries

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