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Constructing Donor–Acceptor‑Linked COFs Electrolytes to Regulate Electron Density and Accelerate the Li^(+)Migration in Quasi‑Solid‑State Battery

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Nano-Micro Letters 2025年第1期17卷 456-471页

作者： Genfu Zhao Hang Ma Conghui Zhang Yongxin Yang Shuyuan Yu Haiye Zhu Yongjiang Sun Hong Guo School of Materials and Energy International Joint Research Center for Advanced Energy Materials of Yunnan ProvinceYunnan UniversityKunming 650091People’s Republic of China Yunnan Yuntianhua Co. LtdR&D CenterKunming 650228People’s Republic of China Southwest United Graduate School Kunming 650091People’s Republic of China

Regulation the electronic density of solid-state electrolyte by donor–acceptor(D–A)system can achieve highly-selective Li^(+)transportation and conduction in solid-state Li metal *** study reports a high-performance solid-state electrolyte thorough D–A-linked covalent organic frameworks(COFs)based on intramolecular charge transfer *** other reported COFbased solid-state electrolyte,the developed concept with D–A-linked COFs not only achieves electronic modulation to promote highly-selective Li^(+)migration and inhibit Li dendrite,but also offers a crucial opportunity to understand the role of electronic density in solid-state Li metal *** introduced strong electronegativity F-based ligand in COF electrolyte results in highlyselective Li^(+)(transference number 0.83),high ionic conductivity(6.7×10^(-4)S cm^(−1)),excellent cyclic ability(1000 h)in Li metal symmetric cell and high-capacity retention in Li/LiFePO_(4)cell(90.8%for 300 cycles at 5C)than substituted C-and N-based *** is ascribed to outstanding D–A interaction between donor porphyrin and acceptor F atoms,which effectively expedites electron transferring from porphyrin to F-based ligand and enhances Li^(+)***,we anticipate that this work creates insight into the strategy for accelerating Li^(+)conduction in high-performance solid-state Li metal batteries through D–A system.

关键词： Electronic modulation engineering Donor-acceptor-linked covalent organic frameworks Quasi-solid-state Li metal battery

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Effect of Gamma-Ray Beaming on the Fluxes of Gamma-Ray Pulsars

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Chinese Physics Letters 2005年第5期22卷 1289-1292页

作者：姜泽军张力 DepartmentofPhysics YunnanUniversityKunming650091 NationalAstronomicalObservatories//YunnanObservatory ChineseAcademyofSciencesKunming650091

We study the effect of gamma-ray beaming on gamma-ray emission of the pulsarsin a self-sustained outer gap model. In this model, averaged gamma-ray flux is a function ofperiod, magnetic held, magnetic inclination angle and solid angle of gamma-ray beaming for agamma-ray pulsar. We generate a sample of gamma-ray pulsars with their ages less than 10(6) years byusing the Monte Carlo method, and then study the gamma-ray beaming effect. The comparison ofdistributions of periods, magnetic fields, distances, gamma-ray energy fluxes and period derivativesof the simulated gamma-ray pulsars with those of observed gamma-ray pulsars by the detector EGRETshows that gamma-ray beaming has an important role on the detection of gamma-ray ***, possible gamma-ray pulsars observed by the detector GLAST are predicted.

关键词： OUTER GAPS LUMINOSITY RADIO POPULATIONS STATISTICS EVOLUTION MODEL

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Syntheses and Crystal Structures of [Ni(L)_2(NCS)_2] and [Co(L)_2(NCS)_2](L=Azobis(2-pyridine)

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Chinese Journal of Structural Chemistry 2004年第10期23卷 1123-1126页

作者：赵琦华刘宇奇方瑞斌 DepartmentofChemistry YunnanUniversityKunming650091China SchoolofPharmacy YunnanUniversityKunming650091China

The ligand azobis(2-pyridine) L was used in the synthesis of two new organic-inorganic coordination complexes: [Ni(L)2(NCS)2] 1 and [Co(L)2(NCS)2] 2. Crystal data for 1: monoclinic, space group C2/c, a = 13.361(18), b = 10.731(15), c = 18.14(2) ? β = 109.86(2)? V = 2446(6) 3, Z = 4, Mr = 543.25, Dc = 1.410 g/cm3, μ = 0.993 mm-1, F(000) = 1064, T = 298(2) K, R = 0.0454 and wR = 0.1010 for 1288 observed reflections with I > 2s(I); and those for 2: monoclinic, space group C2/c, a = 13.35(2), b = 10.806(15), c = 18.06(2) , β = 110.34(2)? Z = 4, Mr = 543.49, Dc = 1.413 g/cm3, μ = 0.902 mm-1, F(000) = 1060, T = 298(2) K, R = 0.0699 and wR = 0.1354 for 728 observed reflections with I > 2s(I). Single-crystal X-ray diffraction studies revealed that 1 and 2 have similar structures, in which each Ni(II) or Co(II) cation is coordinated by two L ligands and two terminal thiocynates (NCS-).

关键词： crystal structure azobis (2-pyridine) metal complexes

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Synthesis and Crystal Structure of Cadmium(Ⅱ) Complex [Cd(H_2O)(CH_3OC_6H_4COO)_2]_n

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Chinese Journal of Structural Chemistry 2002年第5期21卷 513-516页

作者：赵琦华马永平等 DepartmentofChemistry YunnanUniversityKunming650091China SchoolofPharmacy YunnanUniversityKunming650091China

At room temperature, the reaction of Cd(NO3)24H2O and anisic acid in an ethanol solution affords the cadmium (Ⅱ) complex [Cd(H2O)(CH3OC6H4COO)2]n. The crystal is of monoclinic, empirical formula C16H16O7Cd, Mr = 432.69, space group C2/c with parameters: a = 34.211(2), b = 6.030(2), c = 7.611(3) ? = 95.619(5)? V = 1562.5(9) ?, Z = 4, Dc = 1.831 g/cm3, = 1.434 mm-1, F(000) = 856, R = 0.0215 and wR = 0.0456. 1121 reflections with I ≥ 2s(I) were considered to be observed. Each cadmium atom is seven-coordinate in a distorted pentagonal bipyramidal geometry. The Cd (Ⅱ) center is doubly bridged with the neighboring Cd centers by anisate ligands to form a four-membered ring with a repeating unit of CdOCdO-. The extended structure and hydrogen-bonding patterns displayed in the complex were studied.

关键词： crystal structure polymeric complex cadmium complex anisic acid

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Synthesis and Crystal Structure of Cobalt(II) Complex [Co(H_2O)_2(bpe)(OAc)_2]·4,4'-dpdo

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Chinese Journal of Structural Chemistry 2004年第11期23卷 1305-1307页

作者： ZHAOQi-Huaa LIHui-Qiong FANGRui-Bin DepartmentofChemistry YunnanUniversityKunming650091China SchoolofPharmacy YunnanUniversityKunming650091China

The reaction of Co(OAc)2 with bpe and 4,4?-dpdo in an aqueous-alcohol solution affords the formation of red crystals of [Co(H2O)2(bpe)(OAc)2]?4,4?-dpdo (bpe = trans-1,2-bis(4- pyridyl)ethylene, 4,4?-dpdo = 4,4?-dipyridyl N,N?-oxide). The molecular and crystal structures were determined by single-crystal X-ray diffraction. The crystal is of triclinic, space group P1 with a = 7.6146(9), b = 8.6691(11), c = 10.3440(11) ?, α = 88.311(3), β = 76.992(3), γ = 75.809(3)°, V = 644.76(13) ?3, Z = 1, C26H28CoN4O8, Mr = 583.45, Dc = 1.503 g/cm3, μ = 0.724 mm-1, F(000) = 303, T = 223(2) K, the final R = 0.0477 and wR = 0.1177 for 3199 observed reflections with I > 2σ(I). In the crystal the cobalt atom is six-coordinated by oxygen atoms from two carboxylic molecules, two nitrogen atoms from the bpe ligands and two water molecules, completing an octahedral geometry. The structure of the title complex consists of neutral chains containing cobalt(II) ions bridged by mutually trans bpe molecules. The adjacent chains are connected through weak hydrogen bonds to form a two-dimensional structure.

关键词： cobalt complex trans-1 2-bis(4-pyridyl)ethylene crystal structure

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Two New Flavonol Glycosides from Knoxia corymbosa

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Chinese Chemical Letters 2003年第9期14卷 923-925页

作者： YuBoWANG ShuangXiMEI YaoHuaWANG JingFengZHAO HaiYingREN JieGUO HongBinZhANG LiangLI SchoolofPharmacv.YunnanUniversitv.Kunming 650091 DepartmentofBiology YunnanUniversityKunming650091

Two new flavonol glycosides (1 and 2) together with two known flavonoides (3 and 4), were isolated from the whole plant of Knoxia corymbosa willd. The structures of 1 and 2 were elucidated as kaempferol-7-O-α-L-arabinosyl-3-O-β-D-6'-acetylglucopyranoside and kaempferol -7-O-α-L-arabinosyl-3-O-β-D-3',6'-diacetylglucopyranoside respectively.

关键词： Knoxia corymbosa flavonol glycoside kaempferol-7-O-α-L-arabinosyl-3-O-β-D-6'-acetylglucopyranoside kaempferol-7-O-α-L-arabinosyl-3-O-β-D-3',6'-diacetylglucopyranoside.

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Topological String in Quantum-Chromodynamical Chiral Phase Transitions

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Chinese Physics Letters 2005年第5期22卷 1300-1302页

作者：李云德 DepartmentofPhysics YunnanUniversityKunming650091

It is pointed out that if in heavy ion collision processes, the quark-gluonplasma SU(2) chiral phase transition really takes place and the phase transition is a second *** the topological string, i.e., the pi string, will be formed. The main effect of this phenomenonis that there will be a number of pions produced by decay of the T string in the final state. Thepions from the decay of the 7 string lead to the same effect of decreasing the Hanbury-Brown-Twisspeak in two-pion spectra which is just as that of the long-lived hadronic resonances. Atrelativistic heavy-ion collision and large hadron collision energies, it is expected that thefactors are about alpha similar to 0.7 - 0.9 and alpha similar to 0.6 - 0.85, respectively.

关键词： COSMOLOGICAL EXPERIMENTS COSMIC STRINGS DEFECTS

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Mean First—Passage Time of a Bistable Kinetic Model Driven by Multiplicative Coloured Noise and Additive White Noise

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Chinese Physics Letters 2003年第6期20卷 813-816页

作者：谢崇伟梅冬成 DepartmentofPhysics YunnanUniversityKunming650091

We study the transient properties of a bistable kinetic system driven by correlated noises for the cases of multiplicative coloured noise and additive white noise. The mean first-passage time (MFPT) of the system is calculated. From numerical computations we find that: (i) The MFPT of the bistable system are affected by the correlation time of multiplicative coloured noise τ and the cross-correlation strength between noises λ and, τ and λ play the same roles in the MFPT. (ii) The MFPT corresponding to weakly correlated noises and strongly correlated noises exhibits the very different behaviour and there is a one-peak structure in the MFPT for strongly correlated noises. The peak grows highly as τ increases, which means that the noisy colour causes the suppression effect of the escape rate to become more pronounced.

关键词： correlated noise BISTABILITY Colored noise numerical calculation Additive white noise timing channel Multiplication bistable system

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Effects of Correlations Between the Real and Imaginary Parts of Quantum Noise on Intensity Fluctuation for a Single-Mode Laser

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Chinese Physics Letters 2003年第10期20卷 1681-1684页

作者：谢崇伟梅冬成 DepartmentofPhysics YunnanUniversityKunming650091

We study the effects of correlations between the real and imaginary parts of quantum noise on the intensity fluctuation for a single-mode laser. The analytic expressions of the intensity correlation function C(τ) and the associated relaxation time Tc in the case of a stable locked phase resulting from the cross-correlation λq between the real and imaginary parts of quantum noise are derived by means of projection operator method. Based on numerical computations it is found that the presence of cross-correlations between the real and imaginary parts of quantum noise causes the intensity fluctuation to increase. A slowing-down phenomenon exists in the sense that Tc increases as a function of |λq|. Thus the decay of intensity fluctuation becomes slower.

关键词：量子噪声单模激光器强度涨落相关性非线性实部虚部

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J/ψ Production in Ultra-Peripheral pp Collisions through aTwo-Photon Process

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Chinese Physics Letters 2014年第11期31卷 35-38页

作者：朱佳庆江学敏李云德 Department of Physics Yunnan University Kunming 650091

Using the photon spectrum of a high energy charged patton, we investigate the J/ψ production via the two photon interaction mechanism in ultra-peripheral pp collisions. It is shown that the contributions from the direct electromagnetic and the corresponding fragmentation processes are meaningful for the J/ψ productions in ultra-peripheral pp collisions at LHC energy.

关键词： PHOTONS PARTONS LARGE Hadron Collider (France & Switzerland) ELECTROMAGNETISM PHYSICS research

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