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首页> 外文期刊>RSC Advances >In situ growth of NiO nanoparticles on carbon paper as a cathode for rechargeable Li–O2 batteries
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In situ growth of NiO nanoparticles on carbon paper as a cathode for rechargeable Li–O2 batteries

机译：NiO纳米粒子在碳纸上原位生长作为可充电Li–O 2 电池的阴极

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Novel NiO nanoparticles have been successfully designed and directly grown on carbon paper (CP) as a cathode for rechargeable Li–O2 batteries via a facile two-step in situ synthesis strategy, including a simple electro-deposition technique, following by high temperature oxidation. Using in situ synthesis methods means that the porous structure of CP is effectively inherited and the use of a binder avoided, which eliminates possible side reactions and over-potential from the binder and enhances the electrochemical performance. SEM and TEM show that the NiO nanoparticles homogenously cover the exposed surface of CPs and the size of the NiO particles is around 10 nm. Benefiting from these structural advantages, the binder-free cathode of NiO/CP exhibits a high discharge capacity of 8934 mA h g?1 under the current density of 100 mA g?1 and could cycle more than 112 times within a capacity limitation of 500 mA h g?1.
机译：新型NiO纳米颗粒已经成功设计并直接在复写纸（CP）上生长，可作为一种可充电的Li–O 2 电池的阴极两步“原位”合成策略，包括简单的电沉积技术，然后进行高温氧化。使用原位合成方法意味着可以有效地继承CP的多孔结构，并避免使用粘合剂，从而消除了粘合剂可能产生的副反应和过电位，并增强了电化学性能。 SEM和TEM表明，NiO纳米颗粒均匀地覆盖了CP的暴露表面，并且NiO颗粒的尺寸为约10nm。得益于这些结构优势，NiO / CP的无粘结剂阴极在100 mA g ？1 的高放电容量> ？1 ，并且在500 mA hg ？1 的容量限制内可以循环112次以上。

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