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首页> 外文期刊>RSC Advances >One-step in situ growth of ZnS nanoparticles on reduced graphene oxides and their improved lithium storage performance using sodium carboxymethyl cellulose binder
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One-step in situ growth of ZnS nanoparticles on reduced graphene oxides and their improved lithium storage performance using sodium carboxymethyl cellulose binder

机译：ZnS纳米粒子对石墨烯氧化物降低的一步生长及其使用羧甲基纤维素粘合剂改进的锂储存性能

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摘要

ZnS nanoparticles are in situ grown on reduced graphene oxides (rGO) via a simplified one-step hydrothermal method. Sodium carboxymethyl cellulose (CMC) is firstly applied as the binder for ZnS based anodes and shows a more advantageous binding effect than PVDF. To simplify the synthesis procedure, L-cysteine is added as the sulfur source for ZnS and simultaneously as the reducing agent for rGO. The average diameter of ZnS nanoparticles is measured to be 13.4 nm, and they uniformly disperse on the rGO sheets without any obvious aggregation. As anode materials, the CMC bound ZnS-rGO nanocomposites can maintain a high discharge capacity of 705 mA h g(-1) at a current density of 500 mA g(-1) for 150 cycles. The significantly improved electrochemical performance mainly derives from the combined effects of the small and uniformly dispersed ZnS nanoparticles, the high conductivity and structural flexibility of rGO and the strong binding ability of CMC.
机译：ZnS纳米颗粒通过简化的一步水热法在氧化石墨烯（RGO）上原位生长。 首先将羧甲基纤维素（CMC）作为基于ZnS的阳极施用作为粘合剂，并且显示比PVDF更有利的结合效果。 为了简化合成程序，将L-半胱氨酸作为ZnS加入硫源，并同时作为RGO的还原剂。 测量ZnS纳米颗粒的平均直径为13.4nm，它们均匀地分散在RGO板上而没有任何明显的聚集。 作为阳极材料，CMC结合的ZnS-Rgo纳米复合材料可以在500mA g（-1）的电流密度下保持高705mA H G（-1）的高放电容量，以进行150个循环。 显着提高的电化学性能主要来自小型和均匀分散的ZnS纳米颗粒的组合效应，RGO的高导电性和结构柔韧性和CMC的强粘合能力。

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  • 来源
    《RSC Advances》 |2018年第17期|共9页
  • 作者

    Lu Lun; Jing Liwei; Yang Zhizheng; Yang Guangyu; Wang Cheng; Wang Jinguo; Wang Huiyuan; Jiang Qichuan;

  • 作者单位

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

    Inst Sci &

    Tech Informat Jilin Prov 940 Shenzhen Rd Changchun 130033 Jilin Peoples R China;

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

    Jilin Univ Dept Mat Sci &

    Engn Minist Educ Key Lab Automobile Mat 5988 Renmin St Changchun 130025 Jilin Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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