Exploiting Synergistic Effect by Integrating Ruthenium– Copper Nanoparticles Highly Co-Dispersed on Graphene as Efficient Air Cathodes for Li–CO_2 Batteries

Zhang Zhang; Yang Chao; Wu Shuangshuang; Wang Aonan; Zhao Linlin; Zhai Dandan; Ren Bo; Cao Kangzhe; Zhou Zhen

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Exploiting Synergistic Effect by Integrating Ruthenium– Copper Nanoparticles Highly Co-Dispersed on Graphene as Efficient Air Cathodes for Li–CO_2 Batteries

机译：通过将钌 - 铜纳米颗粒与石墨烯高度共分散的钌 - 铜纳米粒子作为Li-Co_2电池的有效空气阴极进行剥削协同效应

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Li-CO2 batteries are attractive electrical energy storage devices; however, they still suffer from unsatisfactory electrochemical performance, and the kinetics of CO2 reduction and evolution reactions must be improved significantly. Herein, a composite of ruthenium-copper nanoparticles highly co-dispersed on graphene (Ru-Cu-G) as efficient air cathodes for Li-CO2 batteries is designed. The Li-CO2 batteries with Ru-Cu-G cathodes exhibit ultra-low overpotential and can be operated for 100 cycles with a fixed capacity of 1000 mAh g(-1) at 200 and 400 mA g(-1). The synergistic effect between Ru and Cu not only regulates the growth of discharge products, but also promotes CO2 reduction and evolution reactions by changing the electron cloud density of the surface between Ru and Cu. This work may provide new directions and strategies for developing highly efficient air cathodes for Li-CO2 batteries, or even practical Li-air batteries.

机译：Li-Co2电池是有吸引力的电能存储装置;然而，它们仍然患有不令人满意的电化学性能，并且必须显着提高CO2减少和演化反应的动力学。在此，设计了钌 - 铜纳米颗粒的复合材料，其高度分散在石墨烯（Ru-Cu-G）上，作为Li-Co2电池的有效空气阴极。具有Ru-Cu-G阴极的Li-Co2电池表现出超低的过电压，并且可以在200和400mA G（-1）的固定容量为1000mAh（-1）的固定容量的100个循环。 Ru和Cu之间的协同效应不仅调节放电产品的生长，还通过改变Ru和Cu之间的表面的电子云密度来促进CO 2还原和进化反应。这项工作可以为Li-Co2电池或甚至实用的Li-Air电池开发高效的空气阴极提供新的方向和策略。

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来源
《Advanced energy materials》 |2019年第8期|1802805.1-1802805.9|共9页
作者
Zhang Zhang; Yang Chao; Wu Shuangshuang; Wang Aonan; Zhao Linlin; Zhai Dandan; Ren Bo; Cao Kangzhe; Zhou Zhen;
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Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

Xinyang Normal Univ Coll Chem & Chem Engn & Henan Prov Key Lab Utilizat Nonmetall Mineral Xinyang 464000 Peoples R China|Nankai Univ Inst New Energy Mat Chem Key Lab Adv Energy Mat Chem Minist Educ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

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正文语种 eng
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关键词
cathode; Li-CO2 batteries; Ru-Cu nanoparticles; synergistic effect;

机译：阴极;Li-Co2电池;Ru-Cu纳米粒子;协同效应;

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专利

1. Exploiting Synergistic Effect by Integrating Ruthenium– Copper Nanoparticles Highly Co-Dispersed on Graphene as Efficient Air Cathodes for Li–CO_2 Batteries [J] . Zhang Zhang, Yang Chao, Wu Shuangshuang, Advanced energy materials . 2019,第8期

机译：通过整合高度共分散在石墨烯上的钌-铜纳米颗粒作为Li-CO_2电池的高效空气阴极来发挥协同效应
2. Monodispersed MnO nanoparticles in graphenean interconnected N-doped 3D carbon framework as a highly efficient gas cathode in Li–CO_2 batteries [J] . Li Siwu, Liu Yuan, Zhou Junwen, Energy & environmental science . 2019,第3期

机译：石墨烯互连的N掺杂3D碳骨架中的单分散MnO纳米颗粒，作为Li–CO_2电池中的高效气体阴极
3. Monodispersed MnO nanoparticles in graphenean interconnected N-doped 3D carbon framework as a highly efficient gas cathode in Li–CO_2 batteries [J] . Li Siwu, Liu Yuan, Zhou Junwen, Energy & environmental science . 2019,第3期

机译：石墨珠中的单分散MNO纳米颗粒在Li-Co_2电池中是一种高效的气阴极，将N掺杂的N掺杂的3D碳框架相互连接。
4. A COMPOSITE OF CO3O4 HOLLOW NANOPARTICLES AND CO ORGANIC COMPLEXES HIGHLY DISPERSED ON N-DOPED GRAPHENE AS CATHODE CATALYST FOR RECHARGEABLE LI-O2 BATTERIES [C] . Zhang Zhang, Yanan Chen, Jie Bao ACS National Meeting Exhibition . 2015

机译：Co3O4中空纳米颗粒的复合物和CO有机配合物高度分散在N掺杂的石墨烯上，作为用于可充电LI-O2电池的阴极催化剂
5. Integrating Graphene with Copper Interconnects for Future Energy-Efficient and Reliable Nanoelectronic Systems [D] . Li, Ling. 2018

机译：将石墨烯与铜互连集成，用于将来节能可靠的纳米电子系统
6. Verifying the Rechargeability of Li‐CO2 Batteries on Working Cathodes of Ni Nanoparticles Highly Dispersed on N‐Doped Graphene [O] . Zhang Zhang, Xin‐Gai Wang, Xu Zhang, 2018

机译：验证高度掺杂在N掺杂石墨烯上的Ni纳米颗粒的工作阴极上的Li-CO2电池的可充电性
7. Ruthenium nanocrystal decorated vertical graphene nanosheets@Ni foam as highly efficient cathode catalysts for lithium-oxygen batteries [O] . Su Dawei, Seo Dong Han, Ju Yuhang, 2016

机译：钌纳米晶体装饰的垂直石墨烯纳米片@镍泡沫作为锂氧电池的高效阴极催化剂

Exploiting Synergistic Effect by Integrating Ruthenium– Copper Nanoparticles Highly Co-Dispersed on Graphene as Efficient Air Cathodes for Li–CO_2 Batteries

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