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| 1 | Synthesis of NaYF_4:Nd@NaLuF_4@SiO_2@PS colloids for fluorescence imaging in the second biological window显示文摘Nd doped nanoparticles is commonly used as bioimaging agents but presents poor stability. Here, a polymer coating is applied to NaYF4:Nd nanoparticles using a versatile step-by-step coating strategy. The as-synthesized NaYF_4:Nd@NaLuF_4@SiO_2@PS colloids show good stability in various polar solvent and are very stable in water at least for 6 months. These NaYF_4:Nd@NaLuF_4@SiO_2@PS colloids can exhibit strong down converting photoluminescence when excited by 808 nm lasers. Moreover, these NaYF_4:Nd@NaLuF_4@SiO_2@PS colloids accumulate in liver of mice when used as bio-imaging agents. which exhibit strong fluorescence luminescence in NIR Ⅱ window. | Dongpeng Yang Cong Cao Wei Feng Chunhui Huang Fuyou Li | 2018 | Journal of Rare Earths2018，36，2： | 9 |
| 2 | 带并联电抗器的交流特高压输电线路单相自适应重合闸故障识别方法(英文)显示文摘In order to avoid single-phase adaptive reclosure overlap in a permanent fault,accurate identification of the fault types on transmission line is necessary.We present a fault nature identification method for ultra-high voltage alternating current(UHVAC) transmission lines with shunt reactor.The voltage amplitude ratios of the neutral small reactance voltage to terminal voltage under transient fault and permanent fault are calculated.The significant differences of the ratio under the two faults have been analyzed.It is found that the ratio can be a criterion to distinguish the fault type,transient or permanent,accurately.Additionally,we also proposed a method that delays a beat frequency oscillation cycle to decide the fault types for the existence of beat frequency oscillation which will cause misidentification on transient faults.Abundant simulation results of ATP/EMTP show that the voltage amplitude ratio under transient fault is between 0.6 and 0.7,which is bigger than 2.5,the ratio under permanent fault. | LIN Xin XIE Yinzhi SUI Dongpeng XU Jianyuan LIU Yang | 2013 | 高电压技术2013，39，4： | 4 |
| 3 | An Effective Asphalt UV Blocking Material Based on Host-Guest Schiff Base/Layered Double Hydroxides显示文摘 | Chunhui Xia Rui Gao Kaitao Li Yang Yang Yanjun Lin Dongpeng Yan | 2017 | Chinese Journal of Chemistry2017，35，11： | 3 |
| 4 | New flame retardant epoxy resins based on cyclophosphazene-derived curing agents显示文摘To obtain high-efficiency flame retardancy of epoxy resins,a cyclophosphazene derivative tri-(ohenylenediamino)cyclotriphosphazene(3 ACP)was successfully synthesized and used as a curing agent for the thermosetting of an epoxy resin system.The flame retardant properties,thermal stability,and pyrolysis mechanism of the resultant thermosets were investigated in detail.The experiments indicated that the synthesized thermoset achieved a UL-94 V-0 rate under a vertical burning test as well as a limiting oxygen index(LOI)of 29.2%,which was able to reach V-0 even when a small amount of 3 ACP was incorporated.Scanning electronic microscopic observation demonstrated that the char residue of the thermosets was extremely expanded after the vertical flame test.Thermal analysis showed that the samples had a lower initial decomposition temperature when 3 ACP was introduced into the epoxy resin systems.This indicates that the carbonization ability of the thermosets was significantly improved at elevated temperatures.In addition,the incorporation of 3 ACP can effectively suppress the release of combustible gases during the pyrolysis process,and the decomposition of E-44/DDS-3 ACP curing systems also promotes the formation of polyphosphoramides charred layer in the condensed phase.The investigation on the chemical structures of both the gaseous and condensed phase pyrolysis process confirmed the flame-retardant mechanism of the 3 ACP-cured epoxy resins.Therefore,the nonflammable halogen-free epoxy resin developed in this study has potential applications in electric and electronic fields for environment protection and human health. | Zhenwei Miao Dongpeng Yan Xiaodong Wang Xinfang Zhang Wenqi Zhou Munan Qiu Fan Yang Zhanpeng Wu | 2022 | Chinese Chemical Letters2022，33，8： | 3 |
| 5 | The passivation mechanism of Fe in the acidic AlCl_3-EMIC ionic liquid显示文摘The passivation behavior of Fe in the acidic AlCl_3-1-ethyl-3-methyl-imidazolium chloride(AlCl_3-EMIC) ionic liquid was studied by linear sweep voltammetry and chonopotentiometry. Various approaches were used to characterize the composition and morphology of passive film formed on the Fe electrode, such as scanning electron microscopy(SEM), Raman spectra and X-ray Photoelectron Spectroscopy(XPS). The results showed that the critical passivation potential of Fe shifted to more negative when the molar ratio of AlCl_3:EMIC changing from 2 to 1.3.A film with a light yellow color was observed on the surface of the Fe electrode after passivation. The composition of the passive film was demonstrated to be FeCl_2. The passive film was composed of particulate FeCl_2 with average diameter of about 500 nm. The formation of FeCl_2 film was attributed to the variation of the electrolyte Lewis acidity from acidic to neutral at the interface during the dissolution process of Fe. The reason caused the variation of the electrolyte acidity was discussed. | Dongpeng Xue Yang Yang Guoping Ling | 2017 | Green Energy & Environment2017，2，4： | 2 |
| 6 | Reaetive rectifying for producing dimethyl carbonate显示文摘 | Wang Xiaoping Yang Bolun Wang Dongpeng | 2006 | Chemical Engineering Journal2006，122，12： | 1 |
| 7 | Reactive rectifying for producing dimethyl carbonate显示文摘 | Wang Xiaoping Yang Bolun Wang Dongpeng | 2006 | Chemical Engineering Journal2006，122，12： | 1 |
| 8 | Synthesis of Diethyl Carbonate by Catalytic Alcoholysis of Urea显示文摘 | Wang Dongpeng Yang Bolun Zhai Xiaowei | 2007 | Fuel Process Technol2007，88，8： | 1 |
| 9 | Synthesis of diethyl carbonate by catalytic aleoholysis of urea显示文摘 | Wang Dongpeng Yang Bolun Zhai Xiaowei | 2007 | Fuel Pro- cessing Technology2007，88，8： | 1 |
| 10 | Reconfigurable Mechanochromic Patterns into Chameleon-Inspired Photonic Papers显示文摘Photonic crystal(PC)patterns have shown wide applications in optical devices,information encryption,anticounterfeiting,etc.Unfortunately,it is stll a great challenge to reconfigure the PC patterns once fabricated.Herein,a new strategy is presented to reconfigure self-recordable PC patterns by printing local patterns into the chameleon-inspired PC papers using the phase change material(PCM)as ink and then erasing the patterns in ethanol.Multicolor and high-resolution(25 and 75μm for dot and lines,respectively)patterns can be eficiently and repeatedly reconfigured.In addition,the photonic patterns based on the PC paper and PCM combinations are gifted with mechanochromic characteristics and can show programmable and reversible color change under pressure.The high melting point of the ink,nonclosely packed structures of the PC paper,and the similar solubility parameter of PC paper,PCM,and ethanol are the keys for all these characteristics.This work offers a simple,flexible,efficient way to reconfigure PC patterns with mechanochromic properties and could open up exciting applications for novel hand-operation-based anticounterfeiting and opticaldevices. | Dongpeng Yang Yang Hu Dekun Ma Jianping Ge Shaoming Huang | 2022 | Research2022，，4： | 0 |
| 11 | In situ localization of BiVO_(4) onto two-dimensional MXene promoting photoelectrochemical nitrogen reduction to ammonia显示文摘The existing industrial ammonia synthesis usually adopts the Haber-Bosch process,which requires harsh conditions of high temperature and high pressure,and consumes high energy.Under this circumstance,photoelectrochemical(PEC)catalysis is regarded as a promising method for N_(2) reduction reaction(NRR),but bears problems of low efficiency and yield.Thus,exploring active catalysts remains highly desirable.In this work,BiVO_(4)@MXene hybrids have been facilely synthesized by a hydrothermal route.The heterojunctions by the in situ growth of BiVO_(4) onto two-dimensional(2D)MXene greatly increase the NRR efficiency:under photoelectric conditions,the optimized NH_(3) yield is 27.25µg h^(-1) cm^(-2),and the Faraday efficiency achieves 17.54% at−0.8 V relative to the reversible hydrogen electrode(RHE),which are higher than most state-of-the-art NRR(photo)electrocatalysts.The mechanism speculation shows the enhanced light absorption range and the heterojunction formation largely promote the separation and the transfer efficiency of photogenerated carriers,thereby improving the PEC catalytic ability.Therefore,this work provides a hybrid route to combine the advantages of photo and electric catalysis for effective artificial nitrogen fixation. | Demei Zhang Shiyu Yang Xiaoyu Fang Huifeng Li Xuebo Chen Dongpeng Yan | 2022 | Chinese Chemical Letters2022，33，10： | 0 |
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