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4 - 13 A General Relation between Transmitted Fraction and Deflection Angle with Energetic Ions Passing through Dielectric Capillaries

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IMP & HIRFL Annual Report 2013年第1期 189-190页

作者： yu deyang

Facile preparation of hydrogenated graphene by hydrothermal methods and the investigation of its ferromagnetism

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Chinese Chemical Letters 2021年第11期32卷 3596-3600页

作者： yunpeng Wu Yi Feng Zhongyu He deyang yu Ying Xue Xilong Liu Leiyun Han Xudong Zhao Xiaoyang Liu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China

In this paper,a hydrothermal approach is utilized for the first time in integrating graphene oxide(GO),acetic acid(HAc)and nickel foam to prepare hydrogenated graphene(HG).There are two primary aims of this study:one is to ascertain the structure of the as-prepared HG,and the other one is to investigate the ferromagnetism of the *** hydrothermal conditions,GO was reduced and hydrogenated by HAc,while the nickel foam served as a *** work provides a novel and facile route for the synthesis of hydrogenated graphene,which may lead to the application of hydrogenated graphene in spin electronic devices.

关键词： Graphene Hydrogenation Hydrothermal method Ferromagnetism Carbon materials

Progress of Atomic & Molecular Spectroscopy Group in 2018

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IMP & HIRFL Annual Report 2018年第1期 70-71页

作者： yu deyang 不详

In 2018,the Atomic&Molecular Spectroscopy Group developed a new crystal X-ray spectrometer and made progress on ion-beam guiding *** on a flat HOPG(i.e.,highly oriented pyrolytic graphite)crystal,we constructed a high-efficiency X-ray *** dimension of the HOPG is 50 mm25 mm2 mm,and the object and the image distances are both around 76 *** diffraction photons are sensed by an X-ray CCD(charge coupled device).The working angle covers a range from 25◦to 65◦,and the corresponding X-ray energy is 2.044.37 keV within first order of reflection and 4.088.74 keV within the second order of *** to the mosaic spread effect of HOPG crystal,its final efficiency is about one order of magnitude higher than traditional Si(111)crystal ***,a bending-crystal HOPG X-ray spectrometer is under construction,in order to achieve even higher measuring efficiencies.

关键词： crystal Molecular bending

Synthesis of few-layer N-doped graphene from expandable graphite with melamine and its application in supercapacitors

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Chinese Chemical Letters 2020年第2期31卷 559-564页

作者： yunpeng Wu Xiaoyang Liu Dandan Xia Qiushi Sun deyang yu Shuanggan Sun Xilong Liu Yifei Teng Weige Zhang Xudong Zhao State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China Department of Inorganic Chemistry Shenyang Pharmaceutical UniversityBenxi 117004China

In this paper,we introduced a novel method to prepare the few-layer nitrogen-doped graphene(FNG)from expandable graphite with *** super-capacitive properties of FNG were thoroughly characterized by a three-electrode system,and the results showed the FNG electrode achieved a specific capacitance as high as 83.8 mF/cm2 together with excellent cycling *** method could be a novel approach to combine the pseudo-capacitors and electric double layer capacitors.

关键词： Expandable graphite Graphene Nitrogen doping Supercapacitor Melamine

Computed Tomography in Velocity Space a new way to measure charged particle velocity distribution

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IMP & HIRFL Annual Report 2011年第1期 186-187页

作者： yu deyang

Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions(10 ≤ Z ≤ 47)

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Chinese Physics B 2020年第3期29卷 148-155页

作者： Xiaobin Ding Cunqiang Wu Mingxin Cao Denghong Zhang Mingwu Zhang Yingli Xue deyang yu Chenzhong Dong Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhou 730070China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

The x-ray energies and transition rates associated with single and double electron radiative transitions from the double K hole state 2s2p to the 1s2s and 1s^2 configurations of 11 selected He-like ions(10 ≤ Z ≤ 47) are calculated using the fully relativistic multi-configuration Dirac–Fock method(MCDF). An appropriate electron correlation model is constructed with the aid of the active space method, which allows the electron correlation effects to be studied efficiently. The contributions of the electron correlation and the Breit interaction to the transition properties are analyzed in detail. It is found that the two-electron one-photon(TEOP) transition is correlation sensitive. The Breit interaction and electron correlation both contribute significantly to the radiative transition properties of the double K hole state of the He-like ions. Good agreement between the present calculation and previous work is achieved. The calculated data will be helpful to future investigations on double K hole decay processes of He-like ions.

关键词： electron correlation multi-configuration Dirac–Fock method(MCDF) double K hole state two-electron one-photon(TEOP)transition

4-9 Progress of Atomic & Molecular Spectroscopy Group in 2015

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IMP & HIRFL Annual Report 2015年第1期 202-203页

作者： Cai Xiaohong yu deyang 不详

In 2015, the Atomic & Molecular Spectroscopy Group made progress on electron beam guiding, data analysis of highly charged ions with atoms collisions, and preparation of experiments. A 128-channel picoammeter system[1] were constructed based on instrumentation *** advantage of a high electric potential and narrow bandwidth in quasi DC energetic charged beam measurements, a current resolution better than 5 fA was achieved.

关键词： Molecular Spectroscopy Group

Momentum Computed Tomography:the Reconstruction Framework and the Experiment Data

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IMP & HIRFL Annual Report 2017年第1期 71-72页

作者： Zhang yuezhao yu deyang 不详

When energetic heavy ions interact with atoms,molecules,clusters or solid targets,various secondary particles are *** proposed a novel imaging spectrometer,the Momentum Computed Tomography(MCT)[1].In brief,a series of two-dimensional position spectrums of the charged particles after flying through specific static electromagnetic fields are firstly obtained,which corresponds to a set of line-integral measurements of their momentum distributions;then the entire-solid-angle momentum distributions are reconstructed with these *** to this working theory,no TOF is introduced in the measurement and the counting rate capability is only limited by the position sensitive ***,it combines the advantages of the modern imaging spectrometers that can image the entire-solid-angle momentum distribution,and the classical spectrometers that are suitable to intense reaction measurement if a proper detector is employed.

关键词： momentum intense combine

Calculations of the Kαα Lines from K-shell Hollow Argon Atoms

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IMP & HIRFL Annual Report 2019年第1期 76-77页

作者： Zhang Mingwu yu deyang 不详

Two-electron-one-photon(TEOP)transition[1]is an ultrafast transition(~fs)of two correlated *** this transition,coupled electron pair jumps simultaneously into the same inner hollow shell both changed their principal q... 详细信息

关键词： transition inner quantum