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Nano Research 2010年第7期3卷 496-505页

作者： Haotong Wei haizhu sun Hao Zhang Cong Gao Bai Yang State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China College of Chemistry Northeast Normal UniversityChangchun 130024China

Materials with emission over the whole visible range(400-800 nm)have been obtained through incorporating single-colored CdTe nanocrystals(NCs)into a poly(p-phenylene vinylene)(PPV)precursor[the sulfonium polyelectrolyte precursor of PPV].Firstly,the quantum yield(QY)of the PPV precursor was improved to~50%via heat treatment of a mixed solution of the PPV precursor and poly(vinyl alcohol)(PVA)at 100°C for 3 ***,single-colored CdTe NCs were incorporated into the mixed *** introduction of the PVA was necessary to reduce the electrostatic interaction between the PPV precursor and CdTe NCs,which improved their *** reduced electrostatic interaction eliminated Förster resonance energy transfer(FRET)processes between NCs,as well as between NCs and the PPV precursor,which allowed the functional integration of the polymer and ***,polymer/NC composites with almost any Commission Internationale de L’Eclairage(CIE)coordinates can be achieved by simply changing the size and amount of the *** particular,when the emission wavelength of the CdTe NCs was 559 nm,a pure white-light emitting material with CIE coordinates(0.337,0.332)was obtained.

关键词： Nanocrystal poly(p-phenylene vinylene) CdTe poly(vinyl alcohol)

Aqueous-processed insulating polymer/nanocrystal solar cells with effective suppression of the leakage current and carrier recombination

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Chinese Chemical Letters 2020年第6期31卷 1593-1597页

作者： Henan sun Nannan Chen Yaohua Wang Gan Jin Wei Yuan haizhu sun Bai Yang College of Chemistry National Local United Engineering Laboratory for Power Batteries.Northeast Normal UniversityChangchun 130024China College of Material and Chemical Engineering Chuzhou UniversityChuzhou 239000China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

As one of the most environmentally friendly photovoltaic(PV)conversion equipments,aqueousprocessed CdTe nanocrystal solar cells(NC SCs)have attracted great interest in recent years because of their excellent properties such as high charge-carrier mobility and broad ***,two issues including interfacial recombination and leakage current seriously restrict their *** this paper,insulating polymer poly(vinyl pyrrolidone)(PVP)is introduced into CdTe NC SCs to solve the *** experimental results of transmission electron microscopy(TEM),atomic force micro scopy(AFM)and dark current measurements,etc.,demonstrate the leakage current is effectively suppressed by introducing *** further designing device structure,the reduction of interfacial recombination after introducing PVP is *** strategically taking the advantages of PVP properties(e.g.,water solubility and thermostability),the power conversion efficiency of the devices with PVP is enhanced by almost 37%compared to pure CdTe *** work demonstrates an effective and low-cost method to fabricate NC SCs via aqueous ***,it also proves that appropriate content of insulating polymer is of beneficial in promoting the PV performance.

关键词： Aqueous-processed Polymer Nanocrystal Recombination Leakage current

A Pore-Forming Strategy Toward Porous Carbon-Based Substrates for High Performance Flexible Lithium Metal Full Batteries

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Energy & Environmental Materials 2023年第3期6卷 117-125页

作者： Yanfei Li Shuyang Ye Jian Lin Yihan Song Xinglong Wu Jingping Zhang Changlu Shao Zhongmin Su haizhu sun Dwight S.Seferos College of Chemistry National&Local United Engineering Laboratory for Power BatteriesNortheast Normal UniversityChangchun 5268China Center for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology(Northeast Normal University)Ministry of EducationChangchun 130024China Department of Chemistry University of TorontoTorontoM5S 3H6Canada

Self-standing carbon-based substrates with satisfied structural stability and property adjustability have promising applications in flexible lithium(Li)metal batteries(FLMBs).Current strategies for modifying carbon materials are normally carried out on powder carbon,and very few of them are suitable for self-standing carbon ***,a pore-forming strategy based on the redox chemistry of metallic oxide nanodots is developed to prepare two porous carbon substrates for anode and *** with cotton cloth,the resulting hollow carbon fibers substrate with nanopores effectively prevents from Li dendrites formation and large volume change in lithium metal anode(LMA).Simulations indicate that the porous structure leads to homogeneous ion flux,Li-ion concentration,and electric field during Li *** symmetrical cell based on this substrate remains stable for 8300 h with an ultralow voltage hysteresis of 9 *** a similar route,porous carbon cloth substrate is obtained for subsequently seeding V_(2)O_(5)nanowires to prepare the *** assembled FLMBs pouch cell delivers a capacity of 8.2 mAh with a high capacity retention of~100%even under dramatic *** demonstrated strategy has far-reaching potential in preparing free-standing porous carbon-based materials for flexible energy storage devices.

关键词： dual-function carbon substrates flexible lithium metal full batteries lithium metal anode porous structure V_(2)O_(5)cathode

In situ preparation of Nanoparticles/polymer composites

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Science China(Technological Sciences) 2008年第11期51卷 1886-1901页

作者： sun haizhu & YANG Bai State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China College of Chemistry, Northeast Normal University, Changchun 130024, China State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun China College of Chemistry Northeast Normal University Changchun China

Nanoparticle (NP) is the matter between molecule and bulk material. It has attracted much attention in catalysis, optoelectronics and biology due to its unique physical and chemical properties. Incorporation of these NPs into the polymer matrix is one of the best methods to display their special functions, which not only stabilize the NPs but also realize the functional assembly of NPs and polymers. However, reali- zation of this idea depends largely on the compatibility of NPs and polymers as well as the interaction between them. Therefore, many methods have been developed to prepare the composites of NPs and polymers in order to obtain the function ex- pected. In this review, we mainly focus on the combination of in situ method with other methods to synthesize different functional one-dimension, two-dimension as well as bulk composites, which has been recently developed by our group. The most striking character of our method is the excellent compatibility between NPs and polymers which ensures a homogeneous distribution of NPs in the polymer matrix. The existence of the polymer network makes the NPs more stable, and is significant for displaying their functions.

关键词： in situ nanoparticle polymer composite function

B, N-Co-doped Carbon Tubes with P Encapsulated in 3D Graphene Aerogel for High-stable Lithium-ion Batteries

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Research and Application of Materials Science 2021年第1期3卷 24-29页

作者： Fengfeng XU Jian LIN Cuiyan TONG haizhu sun National&Local United Engineering Laboratory for Power Battery College of ChemistryNortheast Normal UniversityChangchun 130024China

Li-related anodes with stable ability and excellent rate performance are urgently being pursued to overcome the slow kinetic of current lithium ion storage *** this work,an annealing-hydrothermal method is developed to fabricate the anode of a three-dimension nano-construction with robust charge transfer networks,which is composed of elements B,N co-doped carbon tube(BN-CT)as the carrier of red phosphorous to(3D BN-CT@P).Then,3D BN-CT@P is embedded in the graphene aerogel network to obtain (3D BN-CT@P@GA).Impressively,the 3D BN-CT@P@GA shows high capacity and good cycle stability in the potential rage of ***,the discharge capacity is~800 mAh g^(-1) at 500 mA g^(-1) after 500 cycles when evaluated as anode materials for lithium-ion batteries(LIBs).The improved electrochemical performances result from the unique structure of the 3D BN-CT@P@*** the hetero atoms doping,the active P can load up to the BN-CT,which can realize the high capacity as well as the low potential for the *** the same time,the graphene aerogel network provides the protection for the BN-CT@P species and good conductivity to enhance ion *** work fundamentally presents an effective structural engineering way for improving the performance of P-based anodes for advanced LIBs.

关键词： red phosphorus nanostructure anode material lithium-ion batteries

Construction of MnO2 Nanowire for a High-Performance Lithium Ion Supercapacitor

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Research and Application of Materials Science 2019年第1期1卷 18-23页

作者： Wenbo Wang Yanhong Shi Yang Su Yihai Wang haizhu sun National&Local United Engineering Laboratory for Power Battery College of ChemistryNortheast Normal UniversityChangchunChina

Developing lithium ion capacitors possessing both brilliant energy and power density is still significant for numerous *** this paper,we synthesized MnO2 nanowires via a simple hydrothermal *** nanostructure MnO2 can expose more electrochemical sites and thus optimize the kinetics of Li+.Moreover,we used MnO2 nanowires(MnO2 NWs)as anode and a N-doped porous carbon(NPC)as cathode to assemble lithium ion capacitors(MnO2 NWs//NPC LIC).Compared to the traditional supercapacitor with aqueous electrolyte,the MnO2 NWs//NPC LIC exhibits a wider voltage of 0-4.2 V,which is helpful to enhance its energy and power ***,MnO2 NWs//NPC LIC can deliver an excellent capacity of 150 mAh g-1 with an excellent energy density of 82.7 Wh kg-1 and power density of 1.05 kW ***,a good cyclic stability of LICs with a 20%retention after 1000 times charge and discharge process proves its practical potential,indicating a good promising for the application in storage devices.

关键词： Manganese dioxide Nanostructure N-doped porous carbon Lithium-ion supercapacitor

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碳点的设计合成、结构调控及应用

高等学校化学学报 2021年第2期42卷 349-365页

作者：孙海珠杨国夺杨柏吉林大学化学学院超分子结构与材料国家重点实验室长春130012 东北师范大学化学学院动力电池国家‐地方联合工程实验室长春130024

碳点是一类环境友好且性能独特的纳米粒子,在光电转换、生物医学、催化及储能等领域的研究日益活跃.碳点主要分为碳量子点(CQDs)、石墨烯量子点(GQDs)和碳化聚合物点(CPDs),其中CPDs作为一种新型碳点,具有合成原料广泛、碳化程度及共轭... 详细信息

碳点是一类环境友好且性能独特的纳米粒子,在光电转换、生物医学、催化及储能等领域的研究日益活跃.碳点主要分为碳量子点(CQDs)、石墨烯量子点(GQDs)和碳化聚合物点(CPDs),其中CPDs作为一种新型碳点,具有合成原料广泛、碳化程度及共轭结构可调且材料相容性好等优点.本文综合评述了近年来碳点尤其是CPDs的合成方法;阐述了通过选择前驱体分子、控制反应条件及掺杂原子等手段实现对其碳化和共轭程度、晶格和能级结构的调控,从而建立碳点及其杂化与复合材料微纳结构与性能之间的关系;最后,介绍了碳点在生物标记与成像、光(电)催化、光电转换及储能等领域的应用,并对碳点领域的发展前景进行了展望.

关键词：碳化聚合物点构效关系碳点

反应物振动激发对反应O^++DH(v=0,1,2,3,j=0)→OD^++H影响的准经典轨线研究

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化学学报 2011年第9期69卷 1075-1080页

作者：孙海竹刘新国刘会荣山东师范大学物理与电子科学学院济南250014

运用准经典轨线方法,基于RODRIGO势能面,对碰撞能为192.97 kJ/mol时,O++DH反应的立体动力学性质进行了理论研究,对k-j',k-k'两矢量相关和k-k'-j'三矢量相关的分布函数、反应几率、反应截面,以及产物转动取向参数进行了详细的讨论.结果表... 详细信息

运用准经典轨线方法,基于RODRIGO势能面,对碰撞能为192.97 kJ/mol时,O++DH反应的立体动力学性质进行了理论研究,对k-j',k-k'两矢量相关和k-k'-j'三矢量相关的分布函数、反应几率、反应截面,以及产物转动取向参数进行了详细的讨论.结果表明,反应物的振动量子数对O++DH(v=0,1,2,3,j=0)→OD++H反应产生了较大的影响.

关键词：准经典轨线方法矢量相关振动量子数:反应几率反应截面

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狭缝型全介质共振单元频率选择超表面

红外与激光工程 2020年第S1期49卷 83-89页

作者：孙海竹张建心樊心民孙永志李森森潍坊学院物理与光电工程学院山东潍坊261061 潍坊学院新型电磁材料研究所山东潍坊261061 光电信息控制和安全技术重点实验室天津300308

为了使频率选择超表面获得新的共振模式,在全介质共振单元内部引入了狭缝,利用狭缝对电磁场的局域特性设计了基于该种共振单元的频率选择超表面。模拟其传输特性后发现,当狭缝的长边和入射电场方向相同时,可以在低频处出现一个阻带,电... 详细信息

为了使频率选择超表面获得新的共振模式,在全介质共振单元内部引入了狭缝,利用狭缝对电磁场的局域特性设计了基于该种共振单元的频率选择超表面。模拟其传输特性后发现,当狭缝的长边和入射电场方向相同时,可以在低频处出现一个阻带,电磁场主要分布在共振单元之间。当狭缝的长边和入射电场方向垂直时,可以在高频处出现一个阻带和一个通带,同时随着共振频率的增大,电磁场的局域特性更加明显,被更好地限制在狭缝内部。通过调整狭缝的宽度、数量和间距可以在比较大的频率范围内调整超表面的工作频段。同时,也可以通过旋转改变狭缝和入射电场的相对位置,实现该频率选择超表面的可重构。这些理论结果为以狭缝为基础设计更复杂结构的共振单元提供了重要的理论指导。

关键词：频率选择超表面全介质狭缝型共振单元

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王会悟:中共“一大”唯一的女性参与者

档案春秋 2008年第12期 34-39页

作者：孔海珠

【相关链接】:王会悟(1898.5-1993.10),浙江桐乡乌镇人,自小接受新思想、新文化,思想进步,一生积极倡导妇女解放,是我国最早的社会主义青年团团员之一。由于时代的局限,中共"一大"没有妇女代表,但在这一重大历史进程中,中国女性并未留... 详细信息

【相关链接】:王会悟(1898.5-1993.10),浙江桐乡乌镇人,自小接受新思想、新文化,思想进步,一生积极倡导妇女解放,是我国最早的社会主义青年团团员之一。由于时代的局限,中共"一大"没有妇女代表,但在这一重大历史进程中,中国女性并未留下空白,王会悟

关键词：王会悟女儿乌镇毛泽东中共“一大” 李达女性