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介孔碳/石墨烯复合材料的制备及其醌类改性电容性能

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无机化学学报 2018年第3期34卷 507-514页

作者：高秀丽李硕邢伟阎子峰中国石油大学(华东)理学院青岛266580 中国石油大学(华东)化学工程学院国家重质油重点实验室青岛266580

首先利用硬模板法制备出介孔碳/石墨烯复合材料,然后向复合材料中引入具有赝电容活性的醌类分子进一步增大材料的电容性能。研究结果表明,负载30%(w/w)叔丁基氢醌的介孔碳/石墨烯复合材料具有最佳的电容性能,在电流密度为0.5 A·g^(-1)... 详细信息

首先利用硬模板法制备出介孔碳/石墨烯复合材料,然后向复合材料中引入具有赝电容活性的醌类分子进一步增大材料的电容性能。研究结果表明,负载30%(w/w)叔丁基氢醌的介孔碳/石墨烯复合材料具有最佳的电容性能,在电流密度为0.5 A·g^(-1)时,比电容值为355 F·g^(-1);当电流密度高达30 A·g^(-1)时,其比电容值高达226 F·g^(-1),比电容保持率为64%,表现出良好的速率特性。

关键词：介孔碳石墨烯醌赝电容超级电容器

Bulging Performance and Quality Control of Aluminum Alloy Tailor-welded Overlapping Sheets Based on Interface Friction

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 258-264页

作者： gao Tiejun gao Bowen li Weijie ZHANG Jiabin College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China Shenyang Aerospace Xinguang Group Co.L td. Shenyang 110043China

In order to solve the problem of poor formability caused by different materials and properties in the process of tailor-welded sheets forming,a forming method was proposed to change the stress state of tailor-welded sheets by covering the tailor-welded sheets with better plastic properties overlapping *** the same time,the interface friction effect between the overlapping and tailor-welded sheets was utilized to control the stress magnitude and further improve the formability and quality of the tailor-welded *** this work,the bulging process of the tailor-welded overlapping sheets was taken as the research *** alloy tailor-welded overlapping sheets bulging specimens were studied by a combination of finite element analysis and experimental *** results show that the appropriate use of interface friction between tailor-welded and overlapping sheets can improve the formability of tailor-welded sheets and control the flow of weld seam to improve the forming *** increasing the interface friction coefficient on the side of tailor-welded sheets with higher strength and decreasing that on the side of tailor-welded sheets with lower strength,the deformation of the tailor-welded sheets are more uniform,the offset of the weld seam is minimal,the limit bulging height is maximal,and the forming quality is optimal.

关键词： tailor-welded sheets overlapping sheet bulging interface friction weld seam stress

走向完美:超越诗歌功能的文化建构——文本《多佛海滩》的实验分析

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外语学刊 2007年第5期 91-93页

作者：高秀丽黑龙江科技学院哈尔滨150027

本文从分析《多佛海滩》的诗歌特点入手,介绍马修·阿诺德以完美理念创作诗歌以及超越诗歌功能,以构建完美社会为宗旨的文化建构。他的诗歌创作和文化批评的精神一脉相承,致力于对道德问题的关注和人性完美的推进。作者希望通过分析,探... 详细信息

本文从分析《多佛海滩》的诗歌特点入手,介绍马修·阿诺德以完美理念创作诗歌以及超越诗歌功能,以构建完美社会为宗旨的文化建构。他的诗歌创作和文化批评的精神一脉相承,致力于对道德问题的关注和人性完美的推进。作者希望通过分析,探寻话语分析的现实途径。

关键词：马修·阿诺德《多佛海滩》文化建构

上海城郊地区冬季霾污染事件反应性VOCs物种特征

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环境科学 2017年第3期38卷 855-866页

作者：高爽张坤高松修光利程娜潘研华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室上海200237 上海市环境监测中心上海200235 上海中学上海200231

基于大学城站点冬季霾污染时段在线气相色谱连续观测数据,分析了高污染时段VOCs污染特征和不同霾污染情况下VOCs光化学反应活性物种.观测期间共检测到55种VOCs物种(PAMs),735个有效样本,ΣVOCs体积分数范围在25.5×10^(-9)~1 320.3×10^... 详细信息

基于大学城站点冬季霾污染时段在线气相色谱连续观测数据,分析了高污染时段VOCs污染特征和不同霾污染情况下VOCs光化学反应活性物种.观测期间共检测到55种VOCs物种(PAMs),735个有效样本,ΣVOCs体积分数范围在25.5×10^(-9)~1 320.3×10^(-9)(avg±SD,240×10^(-9)±181×10^(-9))之间.甲苯和间/对-二甲苯是两个高污染时段的特征污染物,其体积分数超过工业区边界站的体积分数,且高污染时段与工业区站点有相似的组分特征,可能受到附近工业区影响较大.VOCs组分小时变化呈现夜间高白天低的特点,臭氧的小时体积分数变化与之相反.通过分析污染物的光化学反应活性,芳香烃对OFP的贡献率最高,达到70.0%,其次是烯炔烃(16.7%).西北风向的OFP值为2 078.2×10^(-9),是其他风向的4倍,平均MIR值也高于本市其他工业区点位;该地区不同程度霾污染下芳烃均是OFP贡献的主导污染物,其中,甲苯和间/对-二甲苯的贡献率之和超过50%.应用PMF5.0对污染物进行来源解析,得到4个因子,分别为含汽油污染源及机动车尾气排放、石油炼制加工、溶剂使用、有机合成材料制造;其贡献率分别为:33.1%、31.5%、30.5%、4.9%.

关键词： VOCs PMF 霾污染光化学臭氧生成潜势特征物种

Local magnetic moment oscillation around an Anderson impurity on graphene

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai li Zhen Ma Jin-Hua gao School of Science Hebei University of Science and Technology School of Electronics and Information Zhengzhou University of Light Industry School of Physics and Wuhan National High Magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin resolved Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resulted FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin resolved FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the STM experiment (***ález-Herrero et al.,Science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-LDOS）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

An efficient quantum proactive incremental learning algorithm

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 49-57页

作者： lingxiao li Jing li Yanqi Song Sujuan Qin Qiaoyan Wen Fei gao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications School of Cyberspace Security Beijing University of Posts and Telecommunications

In scenarios where a large amount of data needs to be learned, incremental learning can make full use of old knowledge, significantly reduce the computational cost of the overall learning process, and maintain high performance. In this paper, taking the MaxCut problem as our example, we introduce the idea of incremental learning into quantum computing, and propose a Quantum Proactive Incremental Learning algorithm(QPIL). Instead of a one-off training of quantum circuit, QPIL contains a multi-phase training on gradually-increased subgraphs of all vertices, proactively reducing large-scale problems to smaller ones to solve in steps, providing an efficient solution for MaxCut. Specifically, some vertices and corresponding edges are randomly selected for training to obtain optimized parameters of the quantum circuit at first. Then, in each incremental phase, the remaining vertices and corresponding edges are gradually added and the parameters obtained from the previous phase are reused in the parameter initialization of the current phase. We perform experiments on 120 different small-scale graphs, and it shows that QPIL performs superior to prevalent quantum and classical baselines in terms of approximation ratio(AR), time cost, anti-forgetting, and solving stability. In particular, QPIL's AR surpasses 20% of mainstream quantum baselines, and the time cost is less than 1/5 of them. The idea of QPIL is expected to inspire efficient and high-quality solutions in large-scale Max Cut and other combinatorial optimization problems.

关键词： variational quantum algorithm incremental learning multi-phase training MaxCut quantum computing

The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 275-282页

作者： gao Qian li Jun WANG Xianhui CAO Laifu GONG Jian li Bo Central Iron and Steel Research Institute Group Beijing 100081China Shougang Zhixin Electromagnetic Material R&D(Beijing)Co. Ltd.Beijing 101300China Beijing Shougang Co. Ltd.Qian’an 064404China

Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were *** illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically *** effect of precipitate ripening on the Goss texture and magnetic property was *** indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate *** recrystallization was developed at the temperature of 1010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}oriented grains growing abnormally and a magnetic induction intensity of ***,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss ***,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 *** a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1020℃were found among the experimental variables in this *** heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.

关键词： high temperature annealing heating rate secondary recrystallization grain oriented silicon steel

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介孔碳微球的氢醌改性及电容性能研究

无机材料学报 2018年第1期33卷 48-52页

作者：高秀丽王丹丹李硕邢伟阎子峰中国石油大学(华东)理学院青岛266580 中国石油大学(华东)化学工程学院国家重质油重点实验室青岛266580

由于纯碳材料单一的双电层储能机理,其比电容较低,而赝电容材料可利用法拉第反应进行能量存储,可以获得较高的比电容。作者利用软模板法制备出具有三维有序结构的介孔碳微球,然后采用水热法制备氢醌改性的介孔碳微球。循环伏安和恒流充... 详细信息

由于纯碳材料单一的双电层储能机理,其比电容较低,而赝电容材料可利用法拉第反应进行能量存储,可以获得较高的比电容。作者利用软模板法制备出具有三维有序结构的介孔碳微球,然后采用水热法制备氢醌改性的介孔碳微球。循环伏安和恒流充放电测试表明,氢醌改性使得介孔碳微球不仅具有双电层电容,而且具有赝电容。负载10wt%氢醌的介孔碳微球具有最大的比电容值,当电流密度为0.5 A/g时,其比电容值高达285 F/g;当电流密度增大到10 A/g时,其比电容值仍高达212 F/g,表现出优异的倍率特性。这主要归因于氢醌以π-π堆叠方式负载在碳质介孔表面,不仅提供了额外的赝电容,而且提高了碳材料在水系电解液中的倍率特性。

关键词：介孔碳氢醌赝电容超级电容器

Optimization Strategies of Na_(3)V_(2)(PO_(4))_(3) Cathode Materials for Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 204-251页

作者： Jiawen Hu Xinwei li Qianqian liang li Xu Changsheng Ding Yu liu Yanfeng gao School of Materials Science and Engineering Shanghai UniversityShanghai 200444People’s Republic of China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050People’s Republic of China

Na_(3)V_(2)(PO_(4))_(3)(NVP)has garnered great attentions as a prospective cathode material for sodium-ion batteries(SIBs)by virtue of its decent theoretical capacity,superior ion conductivity and high structural ***,the inherently poor electronic conductivity and sluggish sodium-ion diffusion kinetics of NVP material give rise to inferior rate performance and unsatisfactory energy density,which strictly confine its further application in ***,it is of significance to boost the sodium storage performance of NVP cathode *** to now,many methods have been developed to optimize the electrochemical performance of NVP cathode *** this review,the latest advances in optimization strategies for improving the electrochemical performance of NVP cathode material are well summarized and discussed,including carbon coating or modification,foreign-ion doping or substitution and nanostructure and morphology *** foreign-ion doping or substitution is highlighted,involving Na,V,and PO_(4)^(3−)sites,which include single-site doping,multiple-site doping,single-ion doping,multiple-ion doping and so ***,the challenges and prospects of high-performance NVP cathode material are also put *** is believed that this review can provide a useful reference for designing and developing high-performance NVP cathode material toward the large-scale application in SIBs.

关键词： Sodium-ion batteries Na_(3)V_(2)(PO_(4))_(3) Cathode materials Electrochemical performance Optimization strategies