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Zincophilic Ti_(3)C_(2)Cl_(2)MXene and anti-corrosive Cu NPs for synergistically regulated deposition of dendrite-free Zn metal anode

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Journal of Materials Science & Technology 2024年第2期169卷 137-147页

作者： Yunfei Shen Yi Liu Kaisheng Sun Tiantian Gu Gang Wang Yue Yang Jianxiang Pang Yang Zheng Xiaodong Yang Long Chen key laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003China Institute for Chemistry Chemnitz University of TechnologyChemnitz 09107Germany CAS key laboratory of Functional Materials and Devices for Special Environments Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China key laboratory of ecophysics and Department of Physics College of ScienceShihezi UniversityShihezi 832003China

Dendrites growth,chemical corrosion,and hydrogen evolution reaction(HER)on zinc anodes are the main barriers for the development of aqueous zinc-ion batteries(AZIBs).Constructing interfacial protec-tive layer is an effective way to alleviate the side reactions on the ***,Cu/Ti_(3)C_(2)Cl_(2)MXene(CMX)with high zincophilic and hydrophobic property is prepared by the lewis molten salts etching method,and the CMX interface protection layer is constructed by a simple spin *** CMX coat-ing layer can provide abundant nucleation sites and uniformize the charge distribution through the zin-cophilic Ti_(3)C_(2)Cl_(2)MXene matrix,leading to homogenous Zn *** addition,the hydrophobic coat-ing contained anti-corrosive Cu nanoparticles can prevent the Zn anode from the electrolyte,beneficial for suppressing the chemical corrosion and ***,the stable and reversible Zn plating/stripping is achieved for the Zn anode coated by the CMX,which exhibits the lifespan of over 1400 h at 0.5 mA cm^(−2),and even can steadily run for 700 h with 65 mV at 10 mA cm^(−2).Furthermore,CMX@Zn shows a high coulombic efficiency of over 100%for 3800 cycles,which indicates that the CMX@Zn electrode has excellent stability and reversibility of Zn stripping/*** full batteries assembled with ZnCoMnO/C(ZCM)cathodes also exhibits higher capacity(450.6 mAh g^(−1)at 0.1 A g^(−1))and cycle stability(capacity retention of 70%after 1500 cycles).This work enhanced the lifespan of AZIBs and broaden the research of multifunctional coating layer to other secondary batteries based on metal anodes.

关键词： Zinc anode Spin coating Zincophilic MXene Anti-corrosive Cu NPs Multifunctional coating

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Dark Matter Particles May Never Be Directly Detected by Instruments—A Dark Matter Mechanism That Does Not Exceed the Standard Model Framework

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Journal of Modern Physics 2024年第5期15卷 596-612页

作者： Wenbing Qiu key laboratory of ecophysics and Department of Physics College of Science Shihezi University Shihezi China

A dark matter mechanism within the framework of the standard model (SM) of particle physics is proposed in this article that the essence of dark matter may be the excited virtual particle field by the gravitational field of ordinary matter, which contains virtual photons, virtual positive and negative electron pairs, virtual gluons, virtual positive and negative quark pairs, virtual neutrinos etc. In this mechanism, there are two basic assumptions: 1) the stronger the gravitational field of ordinary matter, the greater the excited energy (mass) density of virtual particle field;2) The excited virtual particle field is generally very weak in self-interaction. The virtual particle field excited by gravity can exhibit the properties of dark matter and may become a dark matter candidate. Based on this new dark matter mechanism, the hydrodynamic equations and cosmic perturbation equations describing cosmic matter are improved, and this may be meaningful for solving the challenges faced by the standard cosmological model (Lambda-CDM or LCDM) and developing and perfecting LCDM model.

关键词： Dark Matter Virtual Particle Gravitational Field Ordinary Matter

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FeCo-N encapsuled in nitrogen-doped carbon nanotubes as bifunctional electrocatalysts with a high stability for zinc air batteries

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Rare Metals 2023年第5期42卷 1526-1534页

作者： Xiao-Gang Wu Rui Wang Fei Ma Xiao-Li Liu Da-Li Jia Hong-Cen Yang Yan-Peng Liu Zhi-Xia Wang Han-Zhen Zheng Ya-Nan Zhang Juan Hou Juan-Juan Huang Shang-Long Peng School of Materials and Energy Lanzhou UniversityLanzhou730000China School of Physical Science and Technology Lanzhou UniversityLanzhou730000China School of Science/key laboratory of ecophysics and Department of Physics Shihezi UniversityShihezi832003China

For zinc air batteries,a non-noble metal-based electrocatalyst with a high performance and stability in oxygen evolution reaction(OER)and oxygen reduction reaction(ORR)is imperative in ***,a catalyst based on FeCo-N encapsuled in nitrogen-doped carbon nanotubes has been prepared,which provides an implementable method to design controlled structures with excellent bifunction al electrocatalytic *** adjusting the molar ratio of two metals,the synthesized FeCo-N-C catalyst delivers a competitive ORR and OER performance compared with commercial Pt/C and IrO_(2),performing a low overvoltage gap between ORR(E_(1/2))and OER(E_(j=10))of 0.8 ***,as a promising cathode in zinc air battery,the FeCo-N-C catalyst possesses an affirmative stability of over 100 h and large power density(129 mW·cm^(-2)).This work demonstrates that FeCo-N-C is one of the most promising catalysts for zinc air batteries and provides a possibility for exploration of batteries with high stability by adjusting the molar ratio of metals in the catalysts.

关键词： Iron Cobalt N-doped carbon Oxygen reduction reaction(ORR) Oxygen evolution reaction(OER) Zinc air battery(ZAB)

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Active manipulation of the selective alignment by two laser pulses

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Chinese Physics B 2010年第9期19卷 331-338页

作者：杨增强郭志荣葛桂贤 key laboratory of ecophysics and Department of Physics Normal CollegeShihezi University

This paper solves numerically the full time-dependent Schrodinger equation based on the rigid rotor model, and proposes a novel strategy to determine the optimal time delay of the two laser pulses to manipulate the molecular selective alignment. The results illustrate that the molecular alignment generated by the first pulse can be suppressed or enhanced selectively, the relative populations of even and odd rotational states in the final rotational wave packet can be manipulated selectively by precisely inserting the peak of the second laser pulse at the time when the slope for the alignment parameter by the first laser locates a local maximum for the even rotational states and a local minimum for the odds, and vice versa. The selective alignment can be further optimised by selecting the intensity ratio of the two laser pulses on the condition that the total laser intensity and pulse duration are kept constant.

关键词： rotational wave packets femtosecond laser pulses time delay

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Nonlinear acoustic waves in a collisional self-gravitating dusty plasma

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Chinese Physics B 2010年第11期19卷 489-493页

作者：郭志荣杨增强殷保祥孙茂珠 key laboratory of ecophysics and Department of Physics Teachers CollegeShihezi University

Using the reductive perturbation method, we investigate the small amplitude nonlinear acoustic wave in a collisional self-gravitating dusty plasma. The result shows that the small amplitude dust acoustic wave can be expressed by a modified Korteweg-de Vries equation, and the nonlinear wave is instable because of the collisions between the neutral gas molecules and the charged particles.

关键词： nonlinear acoustic waves collisional self-gravitating dusty plasma modified Korteweg de Vries equation instability

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Regarding the 2^1S0 and 2^3S1 multiplets

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Chinese Physics B 2009年第5期18卷 1828-1832页

作者：刘云虎 key laboratory of ecophysics and Department of Physics Teachers CollegeShihezi University

This paper discusses the masses and possible members of 2^1S0 and 2^3S1 meson multiplets in the framework of meson-meson mixing and Regge phenomenology. For the 2^1S0 meson nonet, K＊（1460） may be the observed state of the 2^1S0 isodoublet with a mass of 1400 MeV and the mass of w（1420） is 1412 MeV. For the 2^3S1 meson nonet, K＊（1410） seems too light to be the 2^3S1 ns member. The fact that the agreement between the present findings and those given by experiments and other different approaches is satisfactory implies that the assignments in this paper may be reasonable.

关键词： meson multiplet meson mass Regge trajectory

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Dynamic Alignment of D2 Enhanced by Two Few-cycle Pulses

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Chinese Journal of Chemical Physics 2008年第5期21卷 421-426页

作者： Zeng-qiang Yang Zhi-rong Guo Bao-xiang Yin Mao-zhu Sun key laboratory of ecophysics and Department of Physics Normal College Shihezi University Shihezi832003 China

二很少周期脉搏导致的 D 2 的动态排列被基于一个僵硬转子模型数字地解决时间依赖者 Schrodinger 方程调查。只要在二之间的时间延期搏动， D 2的排列能被二很少周期脉搏与由单个很少周期脉搏可完成的水平相比提高的结果表演适当地被选... 详细信息

二很少周期脉搏导致的 D 2 的动态排列被基于一个僵硬转子模型数字地解决时间依赖者 Schrodinger 方程调查。只要在二之间的时间延期搏动， D 2的排列能被二很少周期脉搏与由单个很少周期脉搏可完成的水平相比提高的结果表演适当地被选择，并且二激光的脉搏持续时间在 D 2分子的排列过程起一个重要作用。

关键词：动态模型脉冲周期化学物理分析分析方法

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Density Functional Theory Study on the Structural and Electronic Properties of Ge(SiO_2)_n Clusters

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Chinese Journal of Structural Chemistry 2011年第6期30卷 913-919页

作者：葛桂贤闫红霞井群周龙曹海宾张建军 key laboratory of ecophysics and Department of Physics School of ScienceShihezi University

The geometry,stability,binding energy and electronic properties of（SiO2）n and Ge（SiO2）n clusters（n = 7） have been investigated by Density functional theory（DFT）.The results show that the lowest energy structures of Ge（SiO2）n are obtained by adding one Ge on the end site of the O atom or the Si near end site of the O atom in（SiO2）*** chemical activation of Ge-（SiO2）n is improved compared with（SiO2）*** calculated second-order difference of energies and fragmentation energies show that the Ge（SiO2）n clusters with n = 2 or 5 are stable.

关键词： (SiO2)n and Ge(SiO2)n clusters geometries electronic properties PACC:3640 3640B

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Kinetics of catalytically activated aggregation-fragmentation process

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Chinese Physics B 2011年第8期20卷 304-311页

作者：高艳王海锋林振权薛新英 key laboratory of ecophysics and Department of Physics College of ScienceShihezi University Department of Physics Wenzhou University

We propose a catalytically activated aggregation-fragmentation model of three species, in which two clusters of species A can coagulate into a larger one under the catalysis of B clusters; otherwise, one cluster of species A will fragment into two smaller clusters under the catalysis of C clusters. By means of mean-field rate equations, we derive the asymptotic solutions of the cluster-mass distributions ak（t） of species A, which is found to depend strongly on the competition between the catalyzed aggregation process and the catalyzed fragmentation process. When the catalyzed aggregation process dominates the system, the cluster-mass distribution ak（t） satisfies the conventional scaling form. When the catalyzed fragmentation process dominates the system, the scaling description of ak （t） breaks down completely and the monodisperse initial condition of species A would not be changed in the long-time limit. In the marginal case when the effects of catalyzed aggregation and catalyzed fragmentation counteract each other, ak（t） takes the modified scaling form and the system can eventually evolve to a steady state.

关键词： aggregation fragmentation catalytically activated reaction rate equation

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Evolution behavior of catalytically activated replication-decline in a coagulation process

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Chinese Physics B 2013年第9期22卷 547-553页

作者：高艳王海锋张吉东杨霞孙茂珠林振权 key laboratory of ecophysics and Department of Physics School of ScienceShihezi University Department of Physics Wenzhou University

We propose a catalytically activated replication-decline model of three species, in which two aggregates of the same species can coagulate themselves, an A aggregate of any size can replicate itself with the help of B aggregates, and the decline of A aggregate occurs under the catalysis of C aggregates. By means of mean-field rate equations, we derive the asymptotic solutions of the aggregate size distribution ak（t） of species A, which is found to depend strongly on the competition among three mechanisms： the self-coagulation of species A, the replication of species A catalyzed by species B, and the decline of species A catalyzed by species C. When the self-coagulation of species A dominates the system, the aggregate size distribution a^（t） satisfies the conventional scaling form. When the catalyzed replication process dominates the system, ak（t） takes the generalized scaling form. When the catalyzed decline process dominates the system, ak（t） approaches the modified scaling form.

关键词： aggregation catalytically activated reaction replication decline

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