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锌银蓄电池负极化成的研究进展
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作者 赵书利 喻济兵 高中胜 《船电技术》 2010年第3期53-55,共3页
本文叙述了锌银蓄电池试制过程中负极化成的研究进展情况,并提出一些优化改进该工艺流程的措施,进一步保证了由小批量试制到大批量试制工艺的顺利过渡,并提出一些有利于大量试制的合理化建议。
关键词 锌银蓄电池 负极化 工艺 质量
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水平地层上的负激发极化效应及其物理解释 被引量:1
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作者 傅良魁 姚文斌 《地球物理学报》 SCIE EI CAS CSCD 北大核心 1989年第2期203-214,共12页
本文首先阐明负激电效应是客观存在的;然后用等效电阻率法导出地面上点源供电时的二次极化电位、电场强度、电流密度的表达式,并依此用线性滤波法对各种给定参数进行计算,依此对二次极化场的分布规律进行物理分析,对激电负效应给出直观... 本文首先阐明负激电效应是客观存在的;然后用等效电阻率法导出地面上点源供电时的二次极化电位、电场强度、电流密度的表达式,并依此用线性滤波法对各种给定参数进行计算,依此对二次极化场的分布规律进行物理分析,对激电负效应给出直观的物理解释;最后,根据土槽模拟实验资料,证实了负激电效应的客观存在,反演数据也与实际情况相吻合。本文还得到二极装置和错层条件下的负激发极化效应。 展开更多
关键词 激发极化 激电效应 水平地层
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简并基态高分子的极化
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作者 龙德顺 陆海云 《高分子学报》 SCIE CAS CSCD 北大核心 2003年第3期348-352,共5页
在基态非简并 (Non degenerategroundstate ,NDGS)的高分子中 ,非简并的两个态的能量差导致了自陷激子 (Self trappedexciton ,STE)和自陷双激子 (Self trappedbiexciton ,STB) .由于自陷双激子的极化率是负的 ,基态非简并的高分子中能... 在基态非简并 (Non degenerategroundstate ,NDGS)的高分子中 ,非简并的两个态的能量差导致了自陷激子 (Self trappedexciton ,STE)和自陷双激子 (Self trappedbiexciton ,STB) .由于自陷双激子的极化率是负的 ,基态非简并的高分子中能产生光致极化反转 (Photoinducedpolarizationreversion ,PPR) .最近 ,合成出具有优良的发光性能的共轭高分子PDPA(双取代聚乙炔 ) ,这是一种具有简并基态的高分子 ,简并态之间没有能量差 ,激发态是孤子 反孤子对 (s - s) ,而不是自陷激子和自陷双激子 .本文将证明这种具有简并基态的高分子也能产生负极化和光致极化反转 . 展开更多
关键词 简并基态高分子 极化 光激发 负极化 激发态 光致极化反转
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Dipole polarization modulating of vinylene-linked covalent organic frameworks for efficient photocatalytic hydrogen evolution
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作者 Ming Wang Yaling Li +6 位作者 Dengxin Yan Hui Hu a Yujie Song Xiaofang Su Jiamin Sun Songtao Xiao Yanan Gao 《Chinese Journal of Catalysis》 SCIE CAS CSCD 2024年第10期103-112,共10页
Photocatalytic hydrogen(H_(2))evolution using covalent organic frameworks(COFs)is an attractive and promising avenue for exploration,but one of its big challenges is low photo-induced charge separation.In this study,w... Photocatalytic hydrogen(H_(2))evolution using covalent organic frameworks(COFs)is an attractive and promising avenue for exploration,but one of its big challenges is low photo-induced charge separation.In this study,we present a straightforward and facile dipole polarization engineering strategy to enhance charge separation efficiency,achieved through atomic modulation(O,S,and Se)of the COF monomer.Our findings demonstrate that incorporating atoms with varying electronegativities into the COF matrix significantly influences the local dipole moment,thereby affecting charge separation efficiency and photostability,which in turn affects the rates of photocatalytic H_(2) evolution.As a result,the newly developed TMT-BO-COF,which contains highly electronegative O atoms,exhibits the lowest exciton binding energy,the highest efficiency in charge separation and transportation,and the longest lifetime of the active charges.This leads to an impressive average H_(2) production rate of 23.7 mmol g^(−1) h^(−1),which is 2.5 and 24.5 times higher than that of TMT-BS-COF(containing S atoms)and TMT-BSe-COF(containing Se atoms),respectively.A novel photocatalytic hydrogen evolution mechanism based on proton-coupled electron transfer on N in the structure of triazine rings in vinylene-linked COFs is proposed by theoretical calculations.Our findings provide new insights into the design of highly photoactive organic framework materials for H_(2) evolution and beyond. 展开更多
关键词 Covalent organic framework Vinylene linkage ELECTRONEGATIVITY Dipole polarization Photocatalytic hydrogen evolution
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Nitrogen⁃doped 3D graphene⁃carbon nanotube network for efficient lithium storage
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作者 XIE Jie XU Hongnan +3 位作者 LIAO Jianfeng CHEN Ruoyu SUN Lin JIN Zhong 《无机化学学报》 SCIE CAS CSCD 北大核心 2024年第10期1840-1849,共10页
A 3D nitrogen⁃doped graphene/multi⁃walled carbon nanotube(CS⁃GO⁃NCNT)crosslinked network mate⁃rial was successfully synthesized utilizing chitosan and melamine as carbon and nitrogen sources,concomitant with the incor... A 3D nitrogen⁃doped graphene/multi⁃walled carbon nanotube(CS⁃GO⁃NCNT)crosslinked network mate⁃rial was successfully synthesized utilizing chitosan and melamine as carbon and nitrogen sources,concomitant with the incorporation of multi⁃wall carbon nanotubes and employing freeze drying technology.The material amalgamates the merits of 1D/2D hybrid carbon materials,wherein 1D carbon nanotubes confer robustness and expedited elec⁃tron transport pathways,while 2D graphene sheets facilitate rapid ion migration.Furthermore,the introduction of nitrogen heteroatoms serves to furnish additional active sites for lithium storage.When served as an anode material for lithium⁃ion batteries,the CS⁃GO⁃NCNT electrode delivered a reversible capacity surpassing 500 mAh·g^(-1),mark⁃edly outperforming commercial graphite anodes.Even after 300 cycles at a high current density of 1 A·g^(-1),it remained a reversible capacity of up to 268 mAh·g^(-1). 展开更多
关键词 GRAPHENE carbon nanotube hybrid material ANODE lithium⁃ion battery
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A review of anode materials for sodium ion batteries
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作者 Syed Ali Riza XU Ri-gan +6 位作者 LIU Qi Muhammad Hassan YANG Qiang MU Dao-bin LI Li WU Feng CHEN Ren-jie 《新型炭材料(中英文)》 SCIE EI CAS CSCD 北大核心 2024年第5期743-769,共27页
Lithium-ion batteries(LIBs)are used in electric vehicles and portable smart devices,but lithium resources are dwindling and there is an increasing demand which has to be catered for.Sodium ion batteries(SIBs),which ar... Lithium-ion batteries(LIBs)are used in electric vehicles and portable smart devices,but lithium resources are dwindling and there is an increasing demand which has to be catered for.Sodium ion batteries(SIBs),which are less costly,are a promising replacement for LIBs because of the abundant natural reserves of sodium.The anode of a SIB is a necessary component of the battery but is less understood than the cathode.This review outlines the development of various types of anodes,including carbonbased,metallic and organic,which operate using different reaction mechanisms such as intercalation,alloying and conversion,and considers their challenges and prospects.Strategies for modifying their structures by doping and coating,and also modifying the solid electrolyte interface are discussed.In addition,this review also discusses the challenges encountered by the anode of SIBs and the solutions. 展开更多
关键词 Sodium ion batteries ANODE Carbon material Metallic compound ORGANIC
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微细电解射流喷射装置研制与工艺试验 被引量:1
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作者 黄巍 赵建社 +2 位作者 李昞晖 张立鑫 徐坤 《宇航材料工艺》 CAS CSCD 北大核心 2010年第3期67-69,共3页
为提高微细电解射流加工效率及加工质量,研制了专用喷射装置,并利用该装置进行了初步工艺试验。结果证明该装置保证了电解液在其腔体中能够得到充分"负极化",且能获得满足加工要求的稳定破碎长度,满足了电解射流加工试验要求。
关键词 电解射流加工 喷射装置 负极化 破碎长度 微细电解加工
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GaN HFET中的噪声
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作者 薛舫时 《中国电子科学研究院学报》 2009年第2期125-131,共7页
从GaN异质结沟道阱中电子状态出发研究了HFET中的噪声产生机理。用沟道阱中子带间散射解释了迁移率起伏引起的1/f噪声。从电子状态转移及不同状态间的跃迁出发解释了各类噪声实验结果。建立了沟道阱能带与HFET噪声性能间的关联。运用正... 从GaN异质结沟道阱中电子状态出发研究了HFET中的噪声产生机理。用沟道阱中子带间散射解释了迁移率起伏引起的1/f噪声。从电子状态转移及不同状态间的跃迁出发解释了各类噪声实验结果。建立了沟道阱能带与HFET噪声性能间的关联。运用正、负极化电荷剪裁了肖特基势垒、欧姆接触及内、外沟道的势垒和主阱及副阱阱宽和势垒高度,降低了栅流、欧姆接触和外沟道串联电阻,强化了沟道阱的量子限制,减弱了子带间散射。 展开更多
关键词 1/f噪声 能带剪裁 负极化电荷 复合势垒 耦合沟道阱
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AlGaN日盲紫外雪崩光电探测器暗电流研究 被引量:3
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作者 葛张峰 余晨辉 +2 位作者 陈鸣 李林 许金通 《红外与激光工程》 EI CSCD 北大核心 2018年第9期181-187,共7页
为了提高AlGaN日盲紫外雪崩探测器的信噪比,降低暗电流,研制高性能日盲紫外探测器,针对AlGaN日盲紫外雪崩探测器暗电流机制进行了深入研究。首先对传统p-i-n-i-n结构雪崩探测器进行了初步研究,分别设计了GaN和AlGaN的两种雪崩探测器模型... 为了提高AlGaN日盲紫外雪崩探测器的信噪比,降低暗电流,研制高性能日盲紫外探测器,针对AlGaN日盲紫外雪崩探测器暗电流机制进行了深入研究。首先对传统p-i-n-i-n结构雪崩探测器进行了初步研究,分别设计了GaN和AlGaN的两种雪崩探测器模型,分析了其不同暗电流特性,得到的模拟暗电流特性曲线与实验吻合。在此基础上,针对日盲紫外波段高Al组分AlGaN雪崩探测器,重点分析研究了不同异质界面的负极化电荷、p型有效掺杂以及温度等因素对暗电流的影响。在AlGaN日盲紫外雪崩探测器研究中得到的近零偏工作暗电流为2.5×10-13A,在反向138V左右发生雪崩击穿,雪崩开启电流为18.3nA左右,击穿电压温度系数约为0.05V/K,与实验及文献测试结果吻合。 展开更多
关键词 ALGAN 日盲紫外雪崩探测器 暗电流 负极化效应
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Preparation of uniform flower-like CuO and flower-like CuO/graphene composite and their application in lithium ion batteries 被引量:5
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作者 陈晗 冯钒 +3 位作者 胡忠良 刘富生 龚文强 向楷雄 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第10期2523-2528,共6页
Flower-like CuO and flower-like CuO/graphene composite were prepared successfully by hydrothermal method. They were characterized by X-ray diffraction, scanning electron microscopy, nitrogen adsorption, temperature-pr... Flower-like CuO and flower-like CuO/graphene composite were prepared successfully by hydrothermal method. They were characterized by X-ray diffraction, scanning electron microscopy, nitrogen adsorption, temperature-programmed reduction, and thermogravimetric analysis. It is found that the flower-like CuO microspheres, which are composed of CuO nanosheets, possess an average diameter of 4.2 μm and a Brunauer–Emmett–Teller surface area of 12.6 m2/g. Compared with the flower-like CuO, the obtained flower-like CuO/graphene composite shows an enhanced electrochemical performance with a higher capacity of 603 mA-h/g at 0.1 C rate and 382 mA-h/g at 1 C rate, and exhibits a better cycle stability with a high capacity retention of 95.5 % after 50 cycles even though at 1 C rate. 展开更多
关键词 lithium ion batteries anode materials CuO microsphere GRAPHENE
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Effect of germanium on electrochemical performance of chain-like Co-P anode material for Ni/Co rechargeable batteries 被引量:1
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作者 李佳佳 赵相玉 +4 位作者 杜伟 杨猛 马立群 丁毅 沈晓冬 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第7期2060-2065,共6页
Co-P (4.9% P) powders with a chain-like morphology were prepared by a novel chemical reduction method. The Co-P and germanium powders were mixed at various mass ratios to form Co-P composite electrodes. Charge and d... Co-P (4.9% P) powders with a chain-like morphology were prepared by a novel chemical reduction method. The Co-P and germanium powders were mixed at various mass ratios to form Co-P composite electrodes. Charge and discharge test and electrochemical impedance spectroscopy (EIS) were carried out to investigate the electrochemical performance, which can be significantly improved by the addition of germanium. For instance, when the mass ratio of Co-P powders to germanium is 5:1, the sample electrode shows a reversible discharge capacity of 350.3 mA·h/g and a high capacity retention rate of 95.9% after 50 cycles. The results of cyclic voltammmetry (CV) show the reaction mechanism of Co/Co(OH)2 within Co-P composite electrodes and EIS indicates that this electrode shows a low charge-transfer resistance, facilitating the oxidation of Co to Co(OH)2. 展开更多
关键词 Co-P alloy GERMANIUM anode material electrochemical performance
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Synthesis of Cu_2O/reduced graphene oxide composites as anode materials for lithium ion batteries 被引量:6
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作者 颜果春 李新海 +3 位作者 王志兴 郭华军 张倩 彭文杰 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第12期3691-3696,共6页
A facile way was used to synthesize Cu2O/reduced graphene oxide (rGO) composites with octahedron-like morphology in aqueous solution without any surfactant. TEM images of the obtained Cu2O/rGOs reveal that the Cu2O ... A facile way was used to synthesize Cu2O/reduced graphene oxide (rGO) composites with octahedron-like morphology in aqueous solution without any surfactant. TEM images of the obtained Cu2O/rGOs reveal that the Cu2O particles and rGO distribute hierarchically and the primary Cu2O particles are encapsulated well in the graphene nanosheets. The electrochemical performance of Cu2O/rGOs is enhanced compared with bare Cu2O when they are employed as anode materials for lithium ion batteries. The Cu2O/rGO composites maintain a reversible capacity of 348.4 mA?h/g after 50 cycles at a current density of 100 mA/g. In addition, the composites retain 305.8 mA?h/g after 60 cycles at various current densities of 50, 100, 200, 400 and 800 mA/g. 展开更多
关键词 cuprous oxide reduced graphene oxide anode material
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Calculation model of edge carbon atoms in graphite particles for anode of lithium-ion batteries 被引量:2
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作者 张万红 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第11期2466-2475,共10页
Based on the hexagonal crystallite model of graphite,the electrochemical characteristics of carbon atoms on the edge and basal plane were proposed by analyzing graphite crystal structure and bonds of carbon atoms in d... Based on the hexagonal crystallite model of graphite,the electrochemical characteristics of carbon atoms on the edge and basal plane were proposed by analyzing graphite crystal structure and bonds of carbon atoms in different sites.A spherical close-packed model for graphite particle was developed.The fractions of surface carbon atoms(SCA) and edge carbon atoms(ECA) were derived in the expression of crystallographic parameters and particle size,and the effects of ECA on the initial irreversible capacity and the mechanisms of action were analyzed and verified.The results show that the atoms on the edge are more active for electrochemical reactions,such as electrolyte decomposition and tendency to form stable bond with other atoms and groups.For the practical graphite particle,corresponding modifying factors were introduced to revise the difference in calculating results.The revised expression is suitable for the calculation of the fractions of SCA and ECA for carbon materials such as graphite,disordered carbon and modified graphite. 展开更多
关键词 Li-ion batteries carbon anode calculation model electrochemical properties mechanism of action
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Ultrasonic synthesis of CoO/graphene nanohybrids as high performance anode materials for lithium-ion batteries
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作者 陈炳地 彭成信 崔征 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第10期2517-2522,共6页
A facile ultrasonic method was used to synthesize CoO/graphene nanohybrids by employing Co4(CO)12 as a cobalt precursor. The nanohybrids were characterized by SEM, TEM and XPS, and the results show that CoO nanopart... A facile ultrasonic method was used to synthesize CoO/graphene nanohybrids by employing Co4(CO)12 as a cobalt precursor. The nanohybrids were characterized by SEM, TEM and XPS, and the results show that CoO nanoparticles (3-5 nm) distribute uniformly on the surface of graphene. The CoO/graphene nanohybrids display high performance as an anode material for lithium-ion battery, such as high reversible lithium storage capacity (650 mA-h/g after 50 cycles, almost twice that of commercial graphite anode), high coulombic efficiency (over 95%) and excellent cycling stability. The extraordinary performance arises from the structure of the nanohybrids: the nanosized CoO particles with high dispersity on conductive graphene substrates are beneficial for lithium-ion insertion/extraction, shortening diffusion length for lithium ions and improving conductivity, thus the lithium storage performance was improved. 展开更多
关键词 lithium-ion battery GRAPHENE COO anode material ultrasonic synthesis
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Enhanced Photoelectrochemical Property of Zn Loaded TiO2 Nanotube Arrays Electrode 被引量:2
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作者 肖鹏 李露 +3 位作者 张云怀 戴洪法 胡玉琢 卢露 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2010年第1期113-116,I0002,共5页
TiO2 nanotube arrays (TNTs) electrode loaded with Zn nanoparticles was prepared by anodization and the size of Zn nanoparticle loaded on TNTs electrode was controlled by chronoamperometry deposition time. Results of... TiO2 nanotube arrays (TNTs) electrode loaded with Zn nanoparticles was prepared by anodization and the size of Zn nanoparticle loaded on TNTs electrode was controlled by chronoamperometry deposition time. Results of SEM and XRD analysis show that Zn nanoparticles had a diameter of about 15-25 nm when the deposition time was 3-5 s. The UV-Vis diffuse reflectance spectra show the Zn loaded harvest light with 480-780 nm more effectively than the unloaded sample. The photocurrent response of Zn loaded TNTs electrodes were studied, the results showed that TNTs electrodes loaded with Zn nanoparti-cles has 50% increased photocurrent response under high-pressure mercury lamp irradiation compared with unloaded TNTs electrode. 展开更多
关键词 Zn nanoparticle TiO2 nanotube PHOTOCURRENT
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NH_3BH_3的双接触蓝移双氢键的理论研究
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作者 徐利芳 黎安勇 +1 位作者 罗洪娟 纪宏波 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2009年第9期1865-1869,共5页
运用量子化学从头算方法研究了NH3BH3与含大的分子内超共轭的质子给体CHF3,H2CO,HCOOH,HCOCl和HNO形成的双接触弯曲双氢键B—H2…H—X(X=C,N)的分子结构、电子密度拓扑性质与频率位移特征.计算结果表明,在所有体系中,由于双氢键的形成,B... 运用量子化学从头算方法研究了NH3BH3与含大的分子内超共轭的质子给体CHF3,H2CO,HCOOH,HCOCl和HNO形成的双接触弯曲双氢键B—H2…H—X(X=C,N)的分子结构、电子密度拓扑性质与频率位移特征.计算结果表明,在所有体系中,由于双氢键的形成,B—H键拉长且伸缩振动频率红移,而X—H键长减小且伸缩频率蓝移.弯曲的双接触构型导致分子间超共轭减小、X—H键的大的正重极化与正重杂化以及分子内超共轭减小三个因素导致了X—H键蓝移;B—H键红移的主要原因是B—H键的负的重极化与负的重杂化. 展开更多
关键词 B-H2…H-X 双接触双氢键 蓝移 的重极化的重杂化
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NH_3AlH_3与若干小分子的双氢键的理论研究
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作者 徐利芳 黎安勇 +1 位作者 周菱 罗洪娟 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2009年第3期62-66,共5页
运用量子化学从头算方法研究了NH3AlH3与HF,HCl,HBr,H2O和CH3OH形成的双氢键Al—H…H—X(X=F,Cl,Br,O).计算结果表明,在所有体系中,双氢键的形成使得AlH和HX键增长,伸缩振动频率红移.分子间超共轭σ(AlH)σ*(XH)导致了XH键的红移.AlH键... 运用量子化学从头算方法研究了NH3AlH3与HF,HCl,HBr,H2O和CH3OH形成的双氢键Al—H…H—X(X=F,Cl,Br,O).计算结果表明,在所有体系中,双氢键的形成使得AlH和HX键增长,伸缩振动频率红移.分子间超共轭σ(AlH)σ*(XH)导致了XH键的红移.AlH键红移由两个因素造成:AlH键发生负的重极化与负的重杂化;分子间超共轭导致σ(AlH)成键轨道电子密度减小. 展开更多
关键词 Al-H…H-X双氢键 红移 的重极化的重杂化
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Anodic Alumina Supported Pt Catalyst for Total Oxidation of Trace Toluene 被引量:2
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作者 芮泽宝 陈春燕 +1 位作者 逯玉冰 纪红兵 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2014年第8期882-887,共6页
Featuring an assembly of identical pores, through-pore anodic alumina (AAO) makes an ideal monolith-like cat- alyst support for volatile organic compound (VOC) combustion. This work employs the oxidation of toluen... Featuring an assembly of identical pores, through-pore anodic alumina (AAO) makes an ideal monolith-like cat- alyst support for volatile organic compound (VOC) combustion. This work employs the oxidation of toluene as a model reaction to investigate the applicability of AAO supported Pt catalysts in VOC catalytic combustion. In order to modify the microstructure of AAO, some AAO samples were exposed to hot water treatment (HWT) firstly. Re- sults show that the optimum HWT time is 18 h. Pt/HWT18 gives a toluene conversion of95%; at 200 ℃, which is comparable to the initial activity of commercial γ-A1203 particle supported Pt catalyst. Considering its confine- ment effect for the supported metal and its monolith-like compact unit, AAO support offers potential applications in VOC catalytic combustion. 展开更多
关键词 Anodic alumina PT Electrochemical anodization Catalytic combustion TOLUENE
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Enhancement of lithium storage capacity and rate performance of Se-modified MnO/Mn3O4 hybrid anode material via pseudocapacitive behavior 被引量:4
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作者 Lie-wu LI Li-ping WANG +3 位作者 Ming-yu ZHANG Qi-zhong HUANG Ke-jian HE Fei-xiang WU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第7期1904-1915,共12页
To improve rate and cycling performance of manganese oxide anode material,a precipitation method was combined with thermal annealing to prepare the Mn O/Mn3O4/Se Ox(x=0,2)hybrid anode by controlling the reaction tempe... To improve rate and cycling performance of manganese oxide anode material,a precipitation method was combined with thermal annealing to prepare the Mn O/Mn3O4/Se Ox(x=0,2)hybrid anode by controlling the reaction temperature of Mn2O3 and Se powders.At 3 A/g,the synthesized Mn O/Mn3O4/Se Ox anode delivers a discharge capacity of 1007 m A·h/g after 560 cycles.A cyclic voltammetry quantitative analysis reveals that 89.5%pseudocapacitive contribution is gained at a scanning rate of 2.0 m V/s,and the test results show that there is a significant synergistic effect between Mn O and Mn3O4 phases. 展开更多
关键词 lithium-ion battery manganese oxide anode material pseudocapacitive behavior synergistic effect
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γ-Ray Irradiation-Derived MnO/rGO Composites for High Performance Lithium Ion Batteries
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作者 郭亚丽 金洪昌 +2 位作者 杜真真 葛学武 季恒星 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2017年第4期461-466,I0002,共7页
We report a γ-ray irradiation reduction method to prepare MnO/reduced graphene oxide (rCO) nanocomposite for the anode of lithium ion batteries. γ-Ray irradiation provides a clean way to generate homogeneously dis... We report a γ-ray irradiation reduction method to prepare MnO/reduced graphene oxide (rCO) nanocomposite for the anode of lithium ion batteries. γ-Ray irradiation provides a clean way to generate homogeneously dispersed MnO nanoparticles with finely tuned size on rGO surface without the use of surfactant. The MnO/rGO composite enables a fully charge/discharge in 2 min to gain a reversible specific capacity of 546 (mA-h)/g which is 45 higher than the theoretical value of commercial graphite anode. 展开更多
关键词 γ-Ray irradiation reduction MnO anode Reduced graphene oxide NANOCOMPOSITES Lithium ion batteries
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