Silica nanowire anodes exhibit commendable electrochemical properties,but their commercial applications are limited by their complex and costly preparation processes.Conversely,serpentine asbestos harbors a natural nanowire structure,which is amenable to facile conversion into silica nanowires following uncomplicated pretreatment procedures.In this paper,serpentine asbestos was crushed by a wall breaker and pretreated to obtain silica nanowires.These nanowires were then coated with dopamine to form a carbon-coated silica nanowire structure.This structure had very good electrochemical properties,with an initial discharge capacity of 1186mAh/g and a reversible capacity of 600mAh/g even after 100 cycles at a current density of 1A/g.
[1] 胡晓蓉.新能源电池产业发展势头强劲[N].云南日报,2023-08-29(003).http://epaper.hh.cn/h5/html5/2023-08/30/content_15873_8221178.htm.
[2] Li M,Lu J,Chen Z,et al.30 Years of lithium-ion batteries[J].Advanced Materials,2018,30(33):1800561.
[3] Al Ja'farawy M S,Hikmah D N,Riyadi U,et al.A review:the development of SiO2/C anode materials for lithium-ion batteries[J].Journal of Electronic Materials,2021,50(12):6667-6687.
[4] 黄雨辰,曹丽杰.锂离子电池硅碳负极材料的制备及其结构设计研究进展[J].化工新型材料,2023,51(9):58-61.
[5] Ma X,Wei Z,Han H,et al.Tunable construction of multi-shell hollow SiO2 microspheres with hierarchically porous structure as high-performance anodes for lithium-ion batteries[J].Chemical Engineering Journal,2017,323(17):252-259.
[6] Hou L,Xing B,Kang W,et al.Aluminothermic reduction synthesis of porous silicon nanosheets from vermiculite as high-performance anode materials for lithium-ion batteries[J].Applied Clay Science,2022,218(3):106418.
[7] Karuppiah S,Keller C,Kumar P,et al.A scalable silicon nanowires-grown-on-graphite composite for high-energy lithium batteries[J].ACS Nano,2020,14(9):12006-12015.
[8] Li A,Zhao X,Anderson S,et al.Silica nanowire growth on Coscinodiscus Species diatom Frustules via vapor-liquid-solid process[J].Small,2018,14(47):1801822.
[9] 杨昭,石建军,许新春,等.蛇纹石混凝土研究应用进展[J].硅酸盐通报,2023,42(6):1912-1920.
[10] Li Q,Wang Y,Gao X,et al.Enhancement of ZIF-8 derived N-doped carbon/silicon composites for anode in lithium ions batteries[J].Journal of Alloys and Compounds,2021,872(23):159712.
[11] Maletaškić J,Stanković N,Daneu N,et al.Acid leaching of natural chrysotile asbestos to mesoporous silica fibers[J].Physics and Chemistry of Minerals,2018,45(4):343-351.
[12] Zhou X,Liu Y,Ren Y,et al.Engineering molecular polymerization for template-free SiOx/C hollow spheres as ultrastable anodes in lithium-ion batteries[J].Advanced Functional Materials,2021,31(21):2101145.
[13] Lv P,Zhao H,Wang J,et al.Facile preparation and electrochemical properties of amorphous SiO2/C composite as anode material for lithium ion batteries[J].Journal of Power Sources,2013,237(17):291-294.
[14] Huang C,Kim A,Chung D J,et al.Multiscale engineered Si/SiOx nanocomposite electrodes for lithium-ion batteries using layer-by-layer spray deposition[J].ACS Applied Materials & Interfaces,2018,10(18):15624-15633.
[15] Zou W,Li T,Yao Z,et al.A comprehensive study on ZIF-8/SiOx/ZIF-8 core-shell composite as high-stable anode material for lithium-ion batteries[J].Journal of Electroanalytical Chemistry,2022,912(9):116258.
[16] Chen K,Tan Y,Wang K,et al.High specific capacity of carbon coating lemon-like SiO2 hollow spheres for lithium-ion batteries[J].Electrochimica Acta,2022,401(1):139497.
[17] Xu X,Wu F,Yang W,et al.Silicon@natural nitrogen-doped biomass carbon composites derived from “Silicon Tofu” as green and efficient anode materials for lithium-ion batteries[J].ACS Sustainable Chemistry & Engineering,2021,9(39):13215-13224.
[18] Kanaphan Y,Klamchuen A,Chaikawang C,et al.Interfacially enhanced stability and electrochemical properties of C/SiOx nanocomposite lithium-ion battery anodes[J].Advanced Materials Interfaces,2022,9(19):2200303.
[19] Kim T,Choi W,Shin H C,et al.Applications of voltammetry in lithium ion battery research[J].Journal of Electrochemical Science and Technology,2020,11(1):14-25.
[20] Lindström H,Södergren S,Solbrand A,et al.Li+ ion insertion in TiO2 (anatase).2.voltammetry on nanoporous films[J].The Journal of Physical Chemistry B,1997,101(39):7717-7722.
[21] Pu X,Zhao D,Fu C,et al.Understanding and calibration of charge storage mechanism in cyclic voltammetry curves[J].Angewandte Chemie International Edition,2021,60(39):21310-21318.
[22] Liu T,Qu Y,Liu J,et al.Core-shell structured C@SiO2 hollow spheres decorated with nickel nanoparticles as anode materials for lithium-ion batteries[J].Small,2021,17(49):2103673.
基金资助
青海省自然科学基金应用基础研究项目(2023-ZJ-741)