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首页> 外文期刊>Advanced Functional Materials >Advantageous Functional Integration of Adsorption- Intercalation-Conversion Hybrid Mechanisms in 3D Flexible Nb_2O_5@Hard Carbon@MoS_2@Soft Carbon Fiber Paper Anodes for Ultrafast and Super-Stable Sodium Storage
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Advantageous Functional Integration of Adsorption- Intercalation-Conversion Hybrid Mechanisms in 3D Flexible Nb_2O_5@Hard Carbon@MoS_2@Soft Carbon Fiber Paper Anodes for Ultrafast and Super-Stable Sodium Storage

机译：吸附-嵌入-转换混合机制在3D柔性Nb_2O_5 @硬碳@ MoS_2 @软碳纤维纸阳极中的有利功能集成，可用于超快和超稳定的钠存储

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摘要

Using synergetic effects of various sodium storage modes and materials to construct high power, high energy, and long cycling flexible sodium anode materials is significant and still challenging. Here, by advantageous functional integration of adsorption-intercalation-conversion sodium storage mechanisms, a 3D flexible fiber paper anode with the composition of Nb2O5@hard carbon@MoS2@soft carbon is designed and prepared. Based on the synergetic effects, it exhibits higher specific capacity than pure Nb2O5, with more excellent rate performance (245, 201, 155, 133, and 97 mAh g(-1) at the current density of 0.2, 1, 5, 10, and 20 A g(-1), respectively) than pure MoS2 as well as admirable long-term cycling characteristics (approximate to 82% capacity retention after 20 000 cycles at 5 A g(-1)). Relevant kinetics mechanisms are expounded in detail. This work can be helpful for preparing other types of hybrid and flexible electrodes for energy storage systems.
机译：利用各种钠存储模式和材料的协同效应来构建高功率，高能量和长循环的柔性钠阳极材料是重要的，并且仍然具有挑战性。在此，通过吸附-嵌入-转化钠存储机理的功能集成，设计并制备了具有Nb2O5 @硬碳@ MoS2 @软碳组成的3D柔性纤维纸阳极。基于协同效应，它比纯Nb2O5具有更高的比容量，在电流密度为0.2、1、5、10，分别比纯MoS2和20 A g（-1）和令人赞叹的长期循环特性（在5 A g（-1）进行20 000次循环后，约有82％的容量保持率）。详细阐述了相关的动力学机理。这项工作对于准备其他类型的混合和柔性储能系统电极很有帮助。

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    《Advanced Functional Materials》 |2020年第10期|1908665.1-1908665.10|共10页
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    Sun Yat Sen Univ Dept Mat Sci & Engn Guangzhou 510275 Guangdong Peoples R China;

    Zhengzhou Univ Minist Educ Key Lab Mat Proc & Mold Zhengzhou 450002 Peoples R China;

    Guangdong Univ Technol Sch Mat & Energy Guangzhou 510006 Guangdong Peoples R China;

    Univ Sci & Technol China CAS Key Lab Mat Energy Convers Dept Mat Sci & Engn Hefei Natl Lab Phys Sci Microscale Hefei 230026 Anhui Peoples R China|Univ Sci & Technol China State Key Lab Fire Sci Hefei 230026 Anhui Peoples R China|Chinese Acad Sci Dalian Natl Lab Clean Energy DNL Dalian 116023 Liaoning Peoples R China;

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  • 正文语种 eng
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  • 关键词

    flexible anode; MoS2; Nb2O5; sodium ion batteries; synergetic effect;

    机译：柔性阳极;MoS2;Nb2O5;钠离子电池;协同效应;

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