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Nano Research 2016年第7期9卷 2034-2045页

作者： Yunan Li Yong Zhao xianyong lu Ying Zhu Lei Jiang Key Laboratory of Bio-inspired Smart Interracial Science and Technology of Ministry of Education School of Chemistry and Environment Beihang University Beijing 100191China Laboratory of Bio-inspired Smart Interracial Science Technology Institute of Physics and Chemistry Chinese Academy of Science Beijing 100190 China

Self-healing superhydrophobic polyvinylidene fluoride/Fe3O4@polypyrrole （F- PVDF/FeBO4@PPyx） fibers with core-sheath structure were successfully fabricated by electrospinning of a PVDF/Fe3O4 mixture and in situ chemical oxidative polymerization of pyrrole, followed by chemical vapor deposition with fluoroalkyl silane. The F-PVDF/Fe3O4@PPy0.075 fiber film produces a superhydrophobic surface with self-healing behavior, which can repetitively and automatically restore superhydrophobicity when the surface is chemically damaged. Moreover, the maximum refection loss （Ru） of the F-PVDF/Fe304@PPy0.075 fiber film reaches -21.5 dB at 16.8 GHz and the RL below -10 dB is in the frequency range of 10.6-16.5 GHz with a thickness of 2.5 mm. The microwave absorption performance is attributed to the synergetic effect between dielectric loss and magnetic loss originating from PPy, PVDF and Fe3O4. As a consequence, preparing such F-PVDF/Fe3O4@PPyx fibers in this manner provides a simple and effective route to develop multi-functional microwave absorbing materials for practical applications.

关键词： self-healing superhydrophobicity core-sheath structure microwave absorption

In situ fastening graphene sheets into a polyurethane sponge for the highly efficient continuous cleanup of oil spills

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Nano Research 2017年第5期10卷 1756-1766页

作者： Zhuang Kong Jinrong Wang xianyong lu Ying Zhu Lei Jiang Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of Chemistry and Environment Beihang University Beijing 100191 China Laboratory of Bio-inspired Smart Interfacial Science Technology Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China

Oil sorbents are an attractive option for oil-spill cleanup as they may be used for collection and complete removal of oil without adversely affecting the environment. However, traditional oil sorbents exhibit low oil/water separation efficiency and/or low oil-sorption capacity. In this study, an ultra-high performance graphene/polyurethane （PU） sponge has been successfully obtained by in situ polymerization in the presence of graphene dispersed in N-methylpyrrolidone （NMP）. During polymerization, the NMP/graphene dispersion not only serves as a weak amine catalyst for the formation of the sponge, but promotes fixation of the graphene sheets in the framework of the PU sponge owing to the strong dipole interaction between NMP and graphene. The as-prepared graphene/PU sponge was used as an absorbing material for the continuous removal of oil from oil-spill water. The graphene/PU sponge can continuously and rapidly remove oils from immiscible oil/water mixtures in corrosive solutions, including strong acids and bases, hot water, and ice water, with an excellent separation efficiency of above 99.99%. In addition, the as-prepared graphene/PU sponge was effective in separating surfactant-stabilized emulsions with a high separation efficiency of 〉99.91%.

关键词： graphene/polyurethane(PU) sponge in-situ polymerization continuous oil cleanup ultrahigh stability

One-pot synthesis of PVP-coated Ni_(0.6)Fe_(2.4)O_4 nanocrystals

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Chinese Science Bulletin 2010年第30期55卷 3472-3478页

作者： lu xianyong NIU Mu YANG ChunHui YI luoXin QIAO RuiRui DU MeiHong GAO MingYuan Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China School of Chemistry and Environment Beijing University of Aeronautics and Astronautics Beijing 100191 China Beijing Center for Physical and Chemical Analysis Beijing 100089 China

Novel poly(N-vinyl-2-pyrrolidone) (PVP)-coated nickel ferrite nanocrystals were prepared by simultaneously pyrolyzing nickel(Ⅱ) acetylacetonate (Ni(acac)2) and iron(Ⅲ) acetylacetonate (Fe(acac)3) in N-vinyl-2-pyrrolidone (NVP). The PVP coating was formed in situ through polymerization of NVP. The crystalline structure of the resultant nickel ferrite was analyzed by high-resolution transmission electron microscopy,electron diffraction patterns,and powder X-ray diffraction. In addition,the valence state of Ni and the metal contents of Ni and Fe in different valence states were analyzed by X-ray photoelectron spectroscopy (XPS),atomic absorption and the phenanthroline method. The surface coating layer of PVP and its binding states were characterized by Fourier transform infrared spectroscopy in combination with XPS. Colloidal stability experiments revealed that the nanocrystals could be dispersed well in both phosphate-buffered saline and Dulbecco's Modified Eagle Medium.

关键词：聚乙烯吡咯烷酮高分辨透射电子显微镜纳米涂层 X射线光电子能谱粉末X射线衍射傅里叶变换红外光谱镍铁氧体合成

Structural Engineering of Hierarchical Magnetic/Carbon Nanocomposites via In Situ Growth for High-Efficient Electromagnetic Wave Absorption

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Nano-Micro Letters 2024年第9期16卷 262-278页

作者： Xianyuan Liu Jinman Zhou Ying Xue xianyong lu Key Laboratory of Bio‑Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

Materials exhibiting high-performance electromagnetic wave absorption have garnered considerable scientific and technological attention,yet encounter significant *** new materials and innovative structural design concepts is crucial for expanding the application field of electromagnetic wave ***,hierarchical structure engineering has emerged as a promising approach to enhance the physical and chemical properties of materials,providing immense potential for creating versatile electromagnetic wave absorption ***,an exceptional multi-dimensional hierarchical structure was meticulously devised,unleashing the full microwave attenuation capabilities through in situ growth,selfreduction,and multi-heterogeneous interface *** hierarchical structure features a three-dimensional carbon framework,where magnetic nanoparticles grow in situ on the carbon skeleton,creating a necklace-like ***,magnetic nanosheets assemble within this *** impedance matching was achieved by precisely adjusting component proportions,and intelligent integration of diverse interfaces bolstered dielectric *** obtain Fe_(3)O_(4)-Fe nanoparticles/carbon nanofibers/Al-Fe_(3)O_(4)-Fe nanosheets composites demonstrated outstanding performance with a minimum reflection loss(RLmin)value of−59.3 dB and an effective absorption bandwidth(RL≤−10 dB)extending up to 5.6 GHz at 2.2 *** notable accomplishments offer fresh insights into the precision design of high-efficient electromagnetic wave absorption materials.

关键词： Electromagnetic wave absorption Hierarchical structure In situ growth Self-reduction

Metal-free porous nitrogen-doped carbon nanotubes for enhanced oxygen reduction and evolution reactions

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Science Bulletin 2016年第11期61卷 889-896页

作者： Ting Pan Hongying Liu Guangyuan Ren Yunan Li xianyong lu Ying Zhu School of Chemistry and Environment Engineering China University of Mining and Technology (Beijing) Beijing 100083 China Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of Chemistry andEnvironment.Beihang University Beijing 100191 China School of Chemistry Biology and Material Science East ChinaUniversity of Technology Nanchang 330013 China

Developing efficient metal-free bi-functional electrocatalysts is required to reduce costs and improve the slow oxygen reduction reaction （ORR） and oxygen evo- lution reaction （OER） kinetics in electrochemical systems. Porous N-doped carbon nanotubes （NCNTs） were fabri- cated by KOH activation and pyrolysis of polypyrrole nanotubes. The NCNTs possessed a large surface area of more than 1,000 m2 g-1. NCNT electrocatalysts, particu- larly those annealed at 900 ℃, exhibited excellent ORR electrocatalytic performance. Specifically, they yielded a more positive onset potential, higher current density, and long-term operation stability in alkaline media, when compared with a commercially available 20 wt% Pt/C catalyst. This resulted from the synergetic effect between the dominant pyridinic/graphitic-N species and the porous tube structures. The NCNT electrocatalyst also exhibited good performance for the OER. The metal-free porous nitrogen-doped carbon nanomaterials were prepared from low cost and environmentally friendly precursors. They are potential alternatives to Pt/C catalysts, for electrochemical energy conversion and storage.

关键词： N-doped porous carbon Polypyrrole Electrocatalyst Oxygen reduction reaction Oxygenevolution reaction

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复配体系非离子表面活性剂定性方法研究

精细石油化工 2018年第1期35卷 22-25页

作者：卢先勇福建省测试技术研究所福建福州350003

用C18吸附剂和11种不同洗脱能力的洗脱剂,采用pH试纸、目测、红外光谱等方法,研究了结构、极性和相对分子质量相似的5种非离子表面活性剂的11种洗脱物。实验结果表明:每种表面活性剂的11种洗脱物其pH值、洗出量、主成分参数构成一组特... 详细信息

用C18吸附剂和11种不同洗脱能力的洗脱剂,采用pH试纸、目测、红外光谱等方法,研究了结构、极性和相对分子质量相似的5种非离子表面活性剂的11种洗脱物。实验结果表明:每种表面活性剂的11种洗脱物其pH值、洗出量、主成分参数构成一组特征性很强的数据,依据这些数据,可以方便地进行复杂体系中非离子表面活性剂的定性分析,有效提高分析效率。方法可准确定性出混合表面活性剂体系中5种结构相似的表面活性剂。同时,也适用于其他复配体系中非离子表面活性剂的定性分析,为复杂体系非离子表面活性剂定性分析提供了一种价廉、方便的方法。

关键词：复配非表面活性剂分离鉴定红外光谱

美国大学实验室安全管理对我国建设安全“双一流”实验室的启示——以密西根大学安娜堡分校为例

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实验技术与管理 2020年第9期37卷 306-310页

作者：鹿现永北京航空航天大学化学学院北京100191

安全"双一流"高校实验室是中国一流大学和一流学科建设的重要内容。该文以美国密西根大学安娜堡分校实验室安全建设为例,从实验室管理的标准、层级管理制度,以及危险品管理等分析出发,同时结合我国高校实验室管理的现状,为建设安全"双一... 详细信息

安全"双一流"高校实验室是中国一流大学和一流学科建设的重要内容。该文以美国密西根大学安娜堡分校实验室安全建设为例,从实验室管理的标准、层级管理制度,以及危险品管理等分析出发,同时结合我国高校实验室管理的现状,为建设安全"双一流"高校实验室提供借鉴。

关键词：实验室安全双一流建设管理制度

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高透明的柔性金纳米纤维膜

高等学校化学学报 2015年第4期36卷 614-618页

作者：孔壮鹿现永朱英江雷北京航空航天大学仿生界面科学与技术教育部重点实验室、化学与环境学院北京100191 中国科学院化学研究所北京分子科学国家实验室北京100190

通过静电纺丝技术与离子溅射镀膜法,以电纺聚乙烯吡咯烷酮（PVP）为模板,制备了高透明的柔性金（Au）纳米纤维膜.研究表明,该柔性Au纳米纤维膜呈现无规网状分布,纤维的平均直径为291~322 nm.当Au的溅射时间为75 s时,所得薄膜的可见光透... 详细信息

通过静电纺丝技术与离子溅射镀膜法,以电纺聚乙烯吡咯烷酮（PVP）为模板,制备了高透明的柔性金（Au）纳米纤维膜.研究表明,该柔性Au纳米纤维膜呈现无规网状分布,纤维的平均直径为291~322 nm.当Au的溅射时间为75 s时,所得薄膜的可见光透过率为92%,近红外反射率为7%,电阻率为2.9×10-3Ω·cm.该Au纳米纤维膜可转移到任何柔性基底上,且显示出优异的柔韧性,在弯曲500次后其电阻率基本不变.

关键词：静电纺丝 Au纳米纤维离子溅射高透明柔性导电膜

柔性透明自支撑氧化锡锑电纺纳米纤维膜的制备与表征

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高等学校化学学报 2015年第1期36卷 55-60页

作者：孔壮李勇鹿现永朱英江雷北京航空航天大学仿生界面科学与技术教育部重点实验室化学与环境学院北京100191 中国科学院化学研究所北京分子科学国家实验室北京100190

以四氯化锡和三氯化锑为前驱体,通过静电纺丝技术制备了柔性透明的自支撑氧化锡锑(ATO)纳米纤维膜.研究结果表明,该柔性ATO纤维膜具有四方相金红石晶体结构,且呈无规的纤维网状分布.当前驱体煅烧温度分别为520℃和700℃时,纤维的平均直... 详细信息

以四氯化锡和三氯化锑为前驱体,通过静电纺丝技术制备了柔性透明的自支撑氧化锡锑(ATO)纳米纤维膜.研究结果表明,该柔性ATO纤维膜具有四方相金红石晶体结构,且呈无规的纤维网状分布.当前驱体煅烧温度分别为520℃和700℃时,纤维的平均直径为200和150 nm;组成纤维的颗粒的平均粒径为10和19 nm;可见光透过率为72%和80%;电阻率为5.23和2.20Ω·cm.该自支撑ATO纳米纤维膜还显示出优异的柔韧性,在弯曲500次后其电阻率基本不变.

关键词：静电纺丝氯化锡锑纳米纤维自支撑柔性导电膜

低压烧结温度对一步法制备超细晶WC-Co基硬质合金组织及性能的影响

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材料导报 2017年第16期31卷 65-71页

作者：鲍贤勇张峰鲁忠臣曾美琴朱敏华南理工大学材料科学与工程学院广州510640 飞亚达(集团)股份有限公司深圳518057 华南理工大学机械与汽车工程学院广州510640

采用等离子球磨技术制得W-C-10Co-0.9VC-0.3Cr_3C_2纳米复合粉体,并利用单向模压成型法将其压制成生坯,再经低压烧结一步法制备成硬质合金。研究表明,等离子球磨3h所获得的复合粉体呈片层状形貌,并且成分分布均匀。在1 380℃及1 400℃... 详细信息

采用等离子球磨技术制得W-C-10Co-0.9VC-0.3Cr_3C_2纳米复合粉体,并利用单向模压成型法将其压制成生坯,再经低压烧结一步法制备成硬质合金。研究表明,等离子球磨3h所获得的复合粉体呈片层状形貌,并且成分分布均匀。在1 380℃及1 400℃烧结时,由于等离子球磨的特殊作用,VC、Cr_3C_2对WC晶粒长大抑制作用突显。1 380℃烧结制备的硬质合金,致密度为99.2%,WC平均晶粒尺寸为250nm,硬度和横向断裂强度分别为92.3HRA和2 443 MPa,具有最佳的WC晶粒尺寸与致密度配合,以及最佳的综合力学性能。

关键词：等离子球磨碳化烧结一步法低压烧结烧结温度力学性能