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Chinese Chemical Letters 2021年第7期32卷 2169-2173页

作者： Guotao Xiang Jiangmei Yin Xixi Zhang Peiyu Houa Xijin Xu School of Physics and Technology University of JinanJi'nan 250022China Department of Applied Physics The Hong Kong Polytechnic UniversityHong KongChina

Fe-based compounds with good environmental friendliness and high reversible capacity have attracted considerable attention as anode for lithium-ion ***,similar to other transition metal oxides(TMOs),it is also affected by large volume changes and inferior kinetics during redox reactions,resulting in the destruction of the crystal structure and poor electrochemical ***,Fe_(3)O_(4)/C nanospheres anchored on the two-dimensional graphene oxide as precursors are phosphated and sintered to build the multiphasic *** results confirmed the multiphasic nanocomposite composed of Fe2O3,Fe_(3)O_(4) and Fe_(3)PO_(7),which will facilitate the Li+*** the carbonaceous matrix will buffer the volume changes and enhance electron ***,the multiphasic Febased anode delivers a large specific capacity of 1086 mAh/g with a high initial Coulombic efficiency of 87%at 0.1 *** also has excellent cycling stability and rate property,maintaining a capacity retention of~87%after 300 cycles and a high reversible capacity of 632 mAh/g at 10 *** proposed multiphasic structure offers a new insight into improving the electrochemical properties of TMO-based anodes for advanced alkali-ion batteries.

关键词： Lithium-ion batteries Fe-based anode Multiphasic structure electrochemical properties Phosphated

Synthesis and electrochemical properties of a New Tetraazamacrocyclic Complex of Silver (Ⅰ)

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Chinese Chemical Letters 1998年第2期9卷 211-213页

作者： Fu Xin XIE Xu Feng YU Hao ZHANGLiang ZHAO Yu Peng TIAN and Shi Sheng NI(Anhui University, Hefei, Anhui 230039State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 21 0093) Anhui Univ Hefei 230039 Anhui Peoples R China Nanjing Univ State Key Lab Coordinat Chem Nanjing 210093 Peoples R China

A novel silver (Il) complex AgL(ClO4), containing a tetraazamacrocyclic ligand hasbeen synthesized. Its electrochemical behavior was studied by cyclic voltammetry.

关键词： electrochemical properties novel silver (Ⅱ) complex

Synthesis of two pentaarylated [60]fullerene derivatives Ar_5C_(60)-H (Ar = p-MeC_6H_4, m-MeC_6H_4) and their novel electrochemical properties

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Chinese Journal of Chemistry 2000年第3期18卷 395-401页

作者：宋礼成刘鹏蹟胡青眉 ZANELLO Piero FONTANI Marco Department of Chemistry Nankai University Tianjin 300071 China Dipartimento di Chimica dell' Universitd di Siena Via Aldo Moro 53100 Siena Italy

Through one pot reaction of C60 with organocopper/magne-sium reagent ( p - MeQ H4 )2 CuMgBr or ( m - MeC6 H )2 -CuMgBr prepared from CuBr-Me2S and p-MeC6H4MgBr or m-MeC6H4MgBr and subsequent quenching with aqueous NH4Cl, two pentaarylated [60] fullerene derivatives (p-MeC6H4)5C60H (1) and (m-MeC6H4)5C60H (2) have been synthesized in 94% and 96% yields, respectively. While known compound 1 prepared via this improved method is unambiguously identified, new compound 2 is fully characterized by elemental analysis, IR, UV-vis, 1H NMR and 13C NMR spectroscopies. Additionally, electrochemical study shows that the two [60] fullerene derivatives 1 and 2 in dichloromethane solution display two sequential one-electron reductions which are shifted by about 0.4V towards more negative potential values with respect to free C60. Such remarkable cathodic shift is attributed to the multiple breakage of the double-bond conjugation within the fullerene core.

关键词： fullerene pentaarylated derivatives synthesis electrochemical properties

Improved electrochemical properties by lithium insertion into Co3O4 in aqueous LiOH solution

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Progress in Natural Science:Materials International 2013年第2期23卷 593-597页

作者： Yan Liu Chengkang Chang Dongyun Zhang Ying Wu School of Materials Science and Engineering Shanghai Institute of Technology

Co3O4microspheres were synthesized by a simple hydrothermal *** first-cycle charge-discharge tests were carried out between-0.6 and 0.6 V *** pristine,discharged and recharged specimens were characterized by X-ray power diffraction and scanning electron *** voltammetry（CV） curves of Co3O4at various concentrations in LiOH solution were *** appearance of the two pairs of redox peaks indicated that two sets of faradaic reactions were involved in the redox reactions of Co3O4to LiCoO2and LiHCoO2.

关键词： Lithium-ion battery Oxides Chemical synthesis Cyclic voltammetry electrochemical properties

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Preparation and electrochemical properties of 3-Phenyl-6-aryl- 1,2,4-triazolo[3,4-b][1,3,4]-thiadiazoles

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Chemical Research in Chinese Universities 2004年第6期20卷 810-812页

作者： CHENMiao XIAOTai LIHui-xue LIUXiang StateKeyLaboratoryofSolidLubrication LanzhouInstituteofChemistry~PhysicsChineseAcademyofSciencesLanzhou730000P.R.China CollegeofChemical＆Engineering NorthwestNormalUniversityLanzhou730070P.R.China

Introduction Since Tang[1] firstly reported the electroluminescence of 8-hydroxyquinoline aluminium, much attention has been paid to the organic compound as electro-luminescent material. Especially, electron transport materials play an important role in organic light-emitting diode(OLED).2-(4-Biphenyl)-5-(t-butylphenyl)-1,3,4-oxadiazole(PBD), as a kind of popular electron injection/transport materials, can improve remarkably the injection balance of electrons and holes. As a result, it can amend the properties of OLED[2,3]. ……

关键词： Phenyl-6-aryl-1,2,4-triazolo[3,4-b]-thiadiazoles 8-Hydroxyquinoline electrochemical properties

Structure and electrochemical properties of La_(1-x)Mg_(x)Ni_(2.8)Co_(0.4)Mn_(0.1)Al_(0.2)(x=0.25,0.30,0.33)hydrogen storage alloys

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Rare Metals 2020年第12期39卷 1464-1468页

作者： Si Li Huai-Ying Zhou Zhong-Min Wang Jian-Qiu Deng Qing-Rong Yao School of Material Science and Engineering Guilin University of Electronic TechnologyGuilin541004China

La_(1-x)Mg_(x)Ni_(2.8)Co_(0.4)Mn_(0.1)Al_(0.2)(x=0.25,0.30,0.33)alloys were prepared by induction melting followed by annealing treatments(1,073 K)for 10 *** structure and electrochemical properties of La_(1-x)Mg_(x)Ni_(2.8)Co_(0.4)Mn_(0.1)Al_(0.2)(x=0.25,0.30,0.33)hydrogen storage alloys were investigated by X-ray powder diffraction(XRD)and electrochemical measurement *** results reveal that all the alloys mainly consist of LaNi5 phase and La2 Ni7 *** electrochemical experiments demonstrate that the substitution of Mg for La can increase the maximum discharge capacity and improve the high-rate dischargeability of the alloy *** high-rate dischargeability of alloy electrodes increases from 39.4%to63.1%with x increasing from 0.25 to 0.33 at discharge current density of 1,500 mA·g^(-1).However,the addition of Mg reduces the cycling stability of the ***,the results obtained from the electrochemical impedance spectroscopy and linear polarization measurements show that the hydriding kinetics on the hydrogen storage alloys are controlled by charge-transfer step.

关键词： Hydrogen storage alloy electrochemical properties High-rate dischargeability electrochemical impedance spectroscopy

electrochemical properties of Bismuth Doped α-MnO2 Nanorods for Supercapacitor Studies

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Electrochemical properties of Bismuth Doped α-MnO2 Nanorods...

Structure and electrochemical properties of LiMgxMn2-xO)4 Cathode Materials for Li-Ion Batteries

中国颗粒学会超微颗粒专委会2011年年会暨第七届海峡两...

作者： Yinping Xu~a,Chao Yang~(a,b,*),Lili Gao~a,Xike Tian~(a,b,*) Suxin Zhang~c,Yanxin Wang~b a Faculty of Material Science and Chemistry Engineering,China University of Geosciences, Wuhan 430074,P R China b School of Environmental Studies,China University of Geosciences,Wuhan 430074,P R China c State key laboratory of geological processes and mineral resources,China University of Geosciences,Wuhan,430074,P.R.China

Bismuth doped α-MnO nanorods are synthesized by a simple hydrothermal method based on the redox *** samples are characterized by X-ray diffraction(XRD),Field emission scanning electron microscopy(FE-SEM) and transmission electron microscopy(TEM).electrochemical properties of the products are evaluated by cyclic voltammetry and galvanostatic charge-discharge *** ours work,the pure MnO nanorods exhibits a relatively low specific capacitance of 87 Fg,whereas the 1%(atomic ratio) Bi-doped MnO exhibits excellent pseudocapacitive behavior with a specific capacitance of 171 Fg and shows a better cycle *** addition,highly stable and reversible performance after 2000 charge-discharge cycles is also demonstrated.

关键词： Manganese dioxide Bismuth Doped Supercapacitor electrochemical properties hydrothermal

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Journal of Rare Earths 2006年第S2期 147-150页

作者：戴长松霍慧彬王殿龙王福平 The Research Station on Material Science and Engineering for Postdoctoral Fellows Harbin Institute of Technology Department of Applied Chemistry Harbin Institute of Technology

The magnesium-substituted spinel LiMgxMn2-xO4 (x=0, 0.05, 0.1, 0.2) materials were prepared by adipic acid-assisted sol-gel method at 800 ℃ for 12 h in air. The synthesized spinel materials were examined by X-ray diffraction (XRD), scanning electron microscope (SEM), galvanostatic charge-discharge test and cyclic voltammetry (CV). XRD and SEM show that all samples exhibit the same pure spinel phase and good crystal structure. Charge-discharge test indicates that the initial capacity of LiMn2O4, LiMg0.05Mn1.95O4, LiMg0.1Mn1.9O4 and LiMg02Mn1.8O4 is 123.3, 120.4, 116.8 and 114.4 mAh·g-1, respectively. After 50 cycles, its capacity retention is 86.5%, 90.6%, 92.2% and 93.5%, respectively. CV reveals that the reversibility of LiMgxMn2-xO4 increases with increasing of magnesium content.

关键词： lithium ion battery cathode material LiMgxMn2-xO4 structure electrochemical properties

electrochemical SYNTHESIS AND properties OF POLY(AZURE B)

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Chinese Journal of Polymer Science 2001年第4期19卷 359-370页

作者： Dan Shan Shao-lin Mu Department of Chemistry School of Sciences, Yangzhou University Yangzhou 225002, China 扬州大学江苏扬州

A blue poly(azure B) film has been synthesized using repeated potential cycling between -0.25 and 1.10 V (versus SCE). The electrolytic solution consisted of 2.5 mmol dm(-3) azure B, 0.5 mol dm(-3) NaCl and 0.2 mol dm(-3) NaH2PO4 at the pH range of 2.0 to 11.0. The in situ visible spectrum during electrolysis of azure B shows that the intensity at 740 nm peak increases with increasing numbers of potential cycles, which is attributable to the formation of poly(azure B). The wavelength of its corresponding absorption peak is 98 nm longer than that of azure B. The polymerization rate is strongly affected by pH values. The anodic peak potential and cathodic peak potential of the poly(azure B) in a solution of pH 3.0 are not affected by increasing the scan rate from 25 to 600 mV s(-1). Poly(azure B) has good electrochemical reversibility and fast charge transfer characteristic in the pH range of 2.0 and 11.0. The conductivity of poly(azure B) is 1.5 x 10(-4) S cm(-1) According to the differences between FTIR spectra of poly(azure B) and azure B, an electrochemical polymerization mechanism of azure B is proposed in this paper.

关键词： azure B electrochemical polymerization electrochemical properties conductivity in situ UV-visible spectra FTIR spectra

Effect of the La/Nd ratio on the electrochemical properties of the La0. 70-xNdxPr0.05Mg0.25Ni3.3Al0.1(x=0.05-0.20) hydrogen storage alloys

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Effect of the La/Nd ratio on the electrochemical properties ...