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Construction of 3D porous Cu_(1.81)S/nitrogen-doped carbon frameworks for ultrafast and long-cycle life sodium-ion storage

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 191-200页

作者： Chen Chen Hongyu Xue Qilin Hu Mengfan Wang Pan Shang Ziyan Liu Tao Peng Deyang Zhang Yongsong Luo Key Laboratory of Microelectronics and Energy of Henan Province Henan Joint International Research Laboratory of New Energy Storage TechnologyCollege of Physics and Electronic EngineeringXinyang Normal UniversityXinyang 464000China School of Physics and Electronic Engineering Nanyang Normal UniversityNanyang 473061China

Transition metal sulfides have great potential as anode mterials for sodium-ion batteries(SIBs)due to their high theoretical specific ***,the inferior intrinsic conductivity and large volume variation during sodiation-desodiation processes seriously affect its high-rate and long-cyde performance,unbeneficial for the application as fast-charging and long-cycling SIBs ***,the three-dimensional porous Cu_(1.81)S/nitrogen-doped carbon frameworks(Cu_(1.81)S/NC)are synthesized by the simple and facile sol-gel and annealing processes,which can accommodate the volumetric expansion of Cu_(1.81)S nanoparticles and accelerate the transmission of ions and electrons during Na^(+)insertion/extraction processes,exhibiting the excellent rate capability(250.6 mA·g^(-1)at 20.0 A·g^(-1))and outstanding cycling stability(70% capacity retention for 6000 cycles at 10.0 A·g^(-1))for ***,the Na-ion full cells coupled with Na_(3)V_(2)(PO_(4))_(3)/C cathode also demonstrate the satisfactory reversible specific capacity of 330.5 mAh·g^(-1)at 5.0 A·g^(-1)and long-cycle performance with the 86.9% capacity retention at 2.0 A·g^(-1)after 750 *** work proposes a promising way for the conversionbased metal sulfides for the applications as fast-charging sodium-ion battery anode.

关键词： copper sulfide nanoparticles porous carbon framework fast charging long-cycle performance sodium-ion full batteries

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Hydrothermal Synthesis and Crystal Structure of a Novel Dinuclear Co(Ⅱ) Complex:[Co2(2,2'-bpy)_2(μ-L)_2(L)_2(μ-H_2O)](HL=4-Chlorobenzoic Acid)

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Chinese Journal of Structural Chemistry 2008年第11期27卷 1360-1364页

作者：张必松吴昌胜王艳华 Jinhua college of profession and technology College of Material Science and Chemical Engineering Jinhua college of profession and technology Normal College

A new 4-chlorobenzoic acid bridge Co（Ⅱ ） complex [[Co2（2,2＇-bpy）2（μ-L）e（L）2（μ-H2O）] （HL = 4-chlorobenzoic acid） has been obtained by hydrothermal synthesis, and X-ray single-crystal diffraction analysis shows that it crystallizes in the monoclinic system, space group C2/c with a = 22.537（5）, b = 16.212（3）, c = 15.306（3） A, β= 124.37（3）°, V= 4616.1（16）A3, Mr = 1070.45, Dc = 1.540 g/cm3, Z = 4, p = 1.012 mm-1, F（000） = 2176, the final R = 0.0338 and wR= 0.0810. The title complex is composed of dinuclear [Co2（2,2＇-bpy）2（μ-L）2（L）2（μ-HaO）] molecules. Each Co（Ⅱ ） atom is coordinated by two nitrogen atoms from one 2,2’-bipyridine ligand, three oxygen atoms from three 4-chlorobenzoic ions and another oxygen atom from one water molecule. The two Co（Ⅱ） atoms are connected by two 4-chlorobenzoic ions and one bridged water molecule. The dinuclear molecules are interlinked by hydrogen bond and π-π stacking interactions into a three-dimensional supramolecular network.

关键词： Co(Ⅱ ) dinuclear complex hydrothermal synthesis crystal structure

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Effect of Ginkgo Leaf Extract on Vascular Endothelial Function in Patients with Early Stage Diabetic Nephropathy

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Chinese Journal of Integrative Medicine 2009年第1期15卷 26-29页

作者：李旭升郑伟英楼时先陆小文叶赏和 Medical college Jinhua College of Profession and Technology The Affiliated Hospital of Jinhua college of profession and technology Medical college Jinhua College of Profession and TechnologyJinhua

Objective:To explore the effect of ginkgo leaf extract(GLE) on vascular endothelial function(VEF) in patients with early stage diabetic nephropathy(DN).Methods:Sixty-four patients were randomized equally by a randomzing digital table into two groups,the treated group and the control *** were all treated for 8 weeks with conventional therapy for diabetes,but GLE tablets were given to the treated group additionally. Changes in VEF were estimated before and after treatment by ultrasonic examination of t...

关键词： ginkgo leaf extract diabetic nephropathy endothelial function von Willebrand factor

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A novel Ireland-Claisen rearrangement/Diels-Alder tandem reaction of propargylic acrylates with acyclic dienophiles

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Chinese Chemical Letters 2013年第2期24卷 137-139页

作者： Yun-Xia Li Yi-Lin Sheng Bi-Song Zhang college of Pharmaceutics and Material Engineering Jinhua College of Profession and Technology

Received 18 October 2012 Received in revised form 14 December 2012 Accepted 21 December 2012 Available online 29 January 2013

关键词： lreland-Claisen rearrangementDiels-Alder reactionTandem reactionPropargylic acrylates

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Synthesis of Biodegradable Block Copolymer Acyl-Imine with Catalyst of Zinc Powder

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Wuhan University Journal of Natural Sciences 2008年第2期13卷 217-220页

作者： ZHONG Min BAI Yu LI Wei LIU Xiaoxuan QU Fanqi college of Chemistry and Molecular Sciences WuhanUniversity Wuhan 430072 Hubei China college of xinyang profession technology Xinyang464000 Henan China

This paper reported about a polymer of acyl imine synthesized by 3-morpholinone（M） and e-caprolactone（CL） with zinc powder as catalyst. The influence of reaction temperature, reaction time and monomer ratio on the copolymerization reaction was studied. Investigation of monomer reaction ratio and differential scanning calorimeter （DSC） indicated that the copolymer poly（3-morpholinone-e-caprolactone） was a block copolymer, solubility in water, degradation characteristics in vitro and controlled release of 5-FU was also studied. The results showed the hydrophilicity of the copolymer increased with the increasing of M content in the copolymer. With the enhancement of hydrophilicity its degradation rate and drug releasing rate increased as well.

关键词： catalyst 3-morpholinone ε-caprolactone block copolymer degradation controlled release

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A New Integrable Couplings of Classical-Boussinesq Hierarchy with Self-Consistent Sources

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Communications in Theoretical Physics 2010年第7期54卷 1-6页

作者：葛健芽夏铁成 Jinhua college of profession and technology Department of Mathematics Shanghai University

A kind of integrable couplings of soliton equations hierarchy with self-consistent sources associated with sl（4） is presented by Yu. Based on this method, we construct a new integrable couplings of the classical-Boussinesq hierarchy with self-consistent sources by using of loop algebra sl（4）. In this paper, we also point out that there exist some errors in Yu＇s paper and have corrected these errors and set up new formula. The method can be generalized other soliton hierarchy with self-consistent sources.

关键词： the classical-Boussinesq hierarchy self-consistent sources integrable couplings loop algebra

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Lattice dynamics properties of chalcopyrite ZnSnP_2:Density-functional calculations by using a linear response theory

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Chinese Physics B 2017年第4期26卷 307-312页

作者：虞游董玉静沈艳红赵国栋郑小林盛佳南 college of Optoelectronic technology Chengdu University of Information Technology School of Science and technology Xinyang University

We present a first-principles study of the structural,dielectric,and lattice dynamical properties for chalcopyrite semiconductor *** structural properties are calculated using a plane-wave pseudopotential method of densityfunctional theory.A linear response theory is used to derive Born effective charge tensors for each atom,dielectric constants in low and high frequency limits,and phonon *** calculate all zone-center phonon modes,identify Raman and infrared active modes,and report LO-TO splitting of the infrared *** results show an excellent agreement with experiment and propose several predictive behaviors.

关键词： phonon Born effective charge dielectric permittivity linear response theory

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Solutions to the equations describing materials with competing quadratic and cubic nonlinearities

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Chinese Physics B 2009年第6期18卷 2352-2358页

作者：赵丽娜童子双林机 Institute of Nonlinear Physics Zhejiang Normal University Normal School Jinhua College of Profession and Technology

The Lie group theoretical method is used to study the equations describing materials with competing quadratic and cubic nonlinearities. The equations shave some of the nice properties of soliton equations. From the elliptic functions expansion method, we obtain large families of analytical solutions, in special cases, we have the periodic, kink and solitary solutions of the equations. Furthermore, we investigate the stability of these solutions under the perturbation of amplitude noises by numerical simulation.

关键词： competing nonlinearities the elliptic functions expansion soliton numerical simulation

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The electronic,optical,and thermodynamical properties of tetragonal,monoclinic,and orthorhombic M_3N_4(M=Si,Ge,Sn):A first-principles study

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Chinese Physics B 2017年第4期26卷 313-320页

作者：陈东程科齐蓓影 college of Physics and Electronic Engineering Xinyang Normal University college of Optoelectronic technology Chengdu University of Information Technology

A detailed study of the M_3N_4（M = Si,Ge,Sn） nitrides in their tetragonal,monoclinic and orthorhombic phases has been performed with the plane-wave pseudo-potential method combined with the quasi-harmonic approximation,including the phononic *** rationalize the main puzzle,i.e.,the fundamental properties of these phases are unclear,by calculating the crystal structures,density of states,and optical *** direct band gaps of t-Ge_3N_4,m-Si_3N_4,and o-Ge_3N_4 benefit the opto-electrical properties,t-,m-,and o-Si_3N_4 can be used as refractive materials while m-M_3N_4（M = Si,Ge,Sn） are optically transparent in the visible light *** results improve the understanding of the detailed electronic structures of all compounds,as well as the influences of electronic structure on their ***,we find that thermodynamic quantities are sensitive to structures and,therefore,depend on various temperature and pressure conditions.

关键词： first-principles density of states optical properties nitrides

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Extending the Bandwidth of Electric Ring Resonator Metamaterial Absorber

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Chinese Physics Letters 2011年第3期28卷 85-88页

作者： LUO Hao WANG Tao GONG Rong-Zhou NIE Yan WANG Xian Department of Electronic Science and technology Huazhong University of Science and TechnologyWuhan 430074 college of Physics and Electronic Engineering Xinyang Normal UniversityXinyang 464000

An efficient method is proposed to extend the bandwidth of a metamaterial absorber with multi-resonance *** basic unit cell of a metamaterial absorber consists of the electric ring resonator,dielectric substrate(FR-4)and *** assembling five sandwiched structures with different geometric dimensions into a unit cell,we obtain the superposition of five different absorption *** the bandwidth of metamaterial absorption is extended and the full width at half maximum is up to 1.3 *** simulated and experimental results are consistent.

关键词： structure absorber sandwich

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