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Journal of Energy Chemistry 2018年第2期27卷 419-425页

作者： fuzhi li Jingsha li Qiuju Feng Jun Yan Yougen Tang Haiyan Wang College of Chemistry and Chemical Engineering Central South University College of life Sciences and Chemistry Hunan University of Technology College of Chemistry and Chemical Engineering Jishou University Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources Central South University

Highly efficient and non-precious catalysts are imperative for oxygen reduction reaction（ORR） to replace Pt/C. Anchoring efficient active species to carbon supports is a promising and scalable strategy. Here we synthesize Cu nanoparticles and noncrystalline CuNxCy species co-decorated ketjenblack（KB） carbon catalyst（denoted as Cu-N-KB-acid） by a facile and scalable method using copper sulfate, melamine, and KB as raw materials. An initial one-pot hydrothermal treatment is designed before pyrolysis process to achieve the good distribution of Cu and melamine on KB via a possible chelation effect. Owing to the synergistic effect of Cu and CuNxCy on KB, this composite catalyst displays excellent ORR catalytic activity in alkaline solution, which is comparable to the commercial 20% Pt/C. When used as a catalyst in a home-made Al-air battery, it shows a stable discharge voltage of 1.47 V at a discharge density of 50 mA cm-2, a little higher than that of Pt/C（1.45 V）.

关键词： Al-air batteries Oxygen reduction reaction Electrocatalyst Copper nanoparticles Copper-nitrogen doping

Upgrade of three municipal wastewater treatment lagoons using a high surface area media

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Frontiers of Environmental Science & Engineering 2012年第2期6卷 288-293页

作者： John WANC Peng JINt Paul L.BISHOP fuzhi li Meridian Aquatic Technology LLC.4061 Powder Mill RoadSuite 100CalvertonMD 20705USA Department of Civil and Environunental Engineering University of CincinnatiCincirmatiOH 45221USA Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China

Abstract Lagoon-based municipal wastewater treatment plants （WWTPs） are facing difficulties meeting the needs of rapid population growth as well as the more stringent requirements of discharge permits. Three municipal WWTPs were modified using a high surface area media with upgraded fine-bubble aeration systems. Performance data collected showed very promising results in terms of five-day biochemical oxygen demand （BOD5）, ammonia （NH3） and total suspended solids （TSS） removal. Two-year average ammonia effluents were 4.1 mg. L-1 for Columbia WWTP, 4 mg. L-1 for Larchmont WWTP and 2.1 mg. L-1 for Laurelville WWTE respectively. Two- year average BOD5 effluents were 6.8, 4.9 and 2.7 ***, and TSS effluents were 15.0, 9.6 and 7.5 mg.L-L The systems also showed low fecal coliform （FC） levels in their effluents.

关键词： wastewater lagoons wastewater biologicaltreatment ammonia removal high surface area media,fine bubble aeration

Phosphorous-doped carbon nanotube/reduced graphene oxide aerogel cathode enabled by pseudocapacitance for high energy and power zinc-ion hybrid capacitors

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Chinese Chemical Letters 2024年第2期35卷 570-576页

作者： Junjun Yao fuzhi li Ruyi Zhou Chenchen Guo Xinru liu Yirong Zhu Hunan Key Laboratory of Green Metallurgy and New Energy Materials College of Materials and Advanced ManufacturingHunan University of TechnologyZhuzhou 412007China College of packaging and Material Engineering Hunan University of TechnologyZhuzhou 412007China

The design and development of energy storage device with high energy/power density has become a research ***-ion hybrid capacitors(ZHCs)are considered as one of the most promising ***,the application of ZHCs is hindered by their low energy density at high power density due to the unsatisfactory cathode *** this study,a novel 3D phosphorus-doped carbon nanotube/reduced graphene oxide(P-CNT/rGO)aerogel cathode is synthesized through a synergistic modification strategy of CNT insertion and P doping modification combined with 3D porous *** as-obtained P-CNT/rGO aerogel cathode manifests significantly increased surface aera,expanded interlayer spacing,and enhanced pseudocapacitance behavior,thus leading to significantly enhanced specific capacitance and superb ions transport *** as-assembled ZHC based on P-CNT/rGO cathode delivers a superior energy density of 42.2 Wh/kg at an extreme-high power density of 80 kW/kg and excellent cycle ***-depth kinetic analyses are undertaken to prove the enhanced pseudocapacitance behavior and exceptional power output capability of ***,the reaction mechanism of physical and chemical adsorption/desorption of electrolyte ions on the P-CNT/rGO cathode is revealed by systematic ex-situ *** work can provide a valuable reference for developing advanced graphene-based cathode for high energy/power density ZHCs.

关键词： Graphene aerogel Phosphorus doping Pseudocapacitance Zinc-ion hybrid capacitors Energy storage mechanism

lie Symmetry Reductions and Exact Solutions of a Multidimensional Double Dispersion Equation

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Applied Mathematics 2017年第5期8卷 712-723页

作者： Jiali Yu fuzhi li lianbing She School of Mathematics and Information Science Guangzhou University Guangzhou China School of Mathematics and Statistics Southwest University Chongqing China Department of Mathematics Southwest University Chongqing China

In this paper, based on classical lie group method, we study a multidimensional double dispersion equation, and get its infinitesimal generator, symmetry group and similarity reductions. In particular, similarity solutions and travelling wave solutions of the multidimensional double dispersion equation are derived from the reduction equations.

关键词： lie Group Multidimensional Double Dispersion Equation Similarity Solutions Travelling Wave Solutions

lie Group Classifications and Stability of Exact Solutions for Multidimensional Landau-lifshitz Equations

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Applied Mathematics 2016年第7期7卷 665-680页

作者： Jiali Yu fuzhi li Hui Yang Ganshan Yang School of Mathematics Yunnan Normal University Kunming China

In this paper, based on classical lie group method, we study multi-dimensional Landau-lifshitz equation, and get its infinitesimal generator, symmetry group and new solutions. In particular, we build the connection between new exact solutions and old exact solutions. At the same time, we also prove that the initial boundary value condition of the three-dimensional Landau-lifshitz equation admits a unique solution and discuss the stability of the solution.

关键词： lie Group Multidimensional Landau-lifshitz Equation Explicit Solutions Stability

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电絮凝-微滤去除饮用水中的氟

清华大学学报（自然科学版） 2007年第9期47卷 1495-1497页

作者：李静波赵璇李福志北京林业大学资源与环境学院北京100083 清华大学核能与新能源技术研究院北京100084

饮用水中的氟离子对人体具有重要意义。该文采用电絮凝-微滤组合工艺技术,去除饮用水中超量的氟离子,并探讨电流密度、极板间距、pH值对除氟效果的影响。实验表明:电絮凝-微滤组合技术除氟效果明显;水中氟离子浓度的对数值与反应时间呈... 详细信息

饮用水中的氟离子对人体具有重要意义。该文采用电絮凝-微滤组合工艺技术,去除饮用水中超量的氟离子,并探讨电流密度、极板间距、pH值对除氟效果的影响。实验表明:电絮凝-微滤组合技术除氟效果明显;水中氟离子浓度的对数值与反应时间呈线性关系。所研究的电絮凝反应器的最佳工作参数为:电流密度σ=15.8 A/m2,极板间距d=1.0 cm,pH值在5.7～7.0范围内。水中SO42-和PO43-离子的存在会影响除氟效率,而阳离子Fe3+、Mg2+、Ca2+在一定程度上促进除氟反应的进行。

关键词：电絮凝饮用水除氟

Fabrication of well-dispersive yttrium-stabilized cubic zirconia nanoparticles via vapor phase hydrolysis

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Progress in Natural Science:Materials International 2012年第1期22卷 15-20页

作者： fuzhi Shi a,Yaogang li b,Hongzhi Wang a,Qinghong Zhang b a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China b Engineering Research Centre of Advanced Glasses Manufacturing Technology,Donghua University,Shanghai 201620,China [a] State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 China [b] Engineering Research Centre of Advanced Glasses Manufacturing Technology Donghua University Shanghai 201620 China

The well-dispersive yttrium-stabilized cubic zirconia nanoparticles were fabricated via vapor phase hydrolysis process,and the as-synthesized cubic zirconia nanoparticles were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),highresolution electron microscopy(HRTEM) and N 2 adsorption-desorption isotherm *** results of XRD indicated that the pure cubic zirconia nanocrystals were obtained with 8 mol% yttrium atoms *** SEM and TEM observation showed the yttrium-stabilized cubic zirconia nanoparticles(8 mol% yttrium) were dispersive well,with an average crystallite size of 5 *** zirconia coatings were fabricated via the layer by layer(LbL) assembly using poly(allylamine hydrochloride) as polyelectrolyte and cubic zirconia nanoparticles as building blocks in order to illustrate its good *** quartz substrate coated on both sides with 10 layers of yttrium-stabilized cubic zirconia nanoparticles exhibited transmittance as high as 92.3%,which was decreased only one percent compared with bare quartz ***,the stable super-hydrophilic wetting property of the coating was obtained after a critical number of layers(10 layers) deposited onto the surface of quartz substrate,due to its porous structures.

关键词： Cubic zirconia Yttrium-stabilized Vapor phase hydrolysis Layer by layer

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利用连续电除盐技术处理低放废水

清华大学学报（自然科学版） 2008年第6期48卷 1012-1014页

作者：刘丽君李福志赵璇赵刚清华大学核能与新能源技术研究院北京100084

为满足低放废水处理在放射性废物最小量化和节能降耗方面的要求,研究如何利用连续电除盐技术处理低放废水。选择比较典型的压水堆裂变产物Sr、Co、Cs作为代表性核素。结果表明:与传统的离子交换法相比,连续电除盐具有连续运行、处理效... 详细信息

为满足低放废水处理在放射性废物最小量化和节能降耗方面的要求,研究如何利用连续电除盐技术处理低放废水。选择比较典型的压水堆裂变产物Sr、Co、Cs作为代表性核素。结果表明:与传统的离子交换法相比,连续电除盐具有连续运行、处理效果好等优点,对Sr2+的去除效率可以达到95%以上;随着浓缩倍数的升高,对离子的去除效率降低;对3种模拟核素的去除效率高低顺序为Cs+、Sr2+、Co2+,这种去除效率的顺序与常规离子交换工艺不同。

关键词：连续电除盐离子交换树脂低放废水

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Cu single-atom electrocatalyst on nitrogen-containing graphdiyne for CO_(2) electroreduction to CH_(4)

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Chinese Journal of Catalysis 2024年第9期64卷 123-132页

作者： Hao Dai Tao Song Xian Yue Shuting Wei fuzhi li Yanchao Xu Siyan Shu Ziang Cui Cheng Wang Jun Gu Lele Duan Department of Chemistry Southern University of Science and TechnologyShenzhen 518055GuangdongChina Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry School of ScienceWestlake UniversityHangzhou 310030ZhejiangChina Department of Chemistry Tsinghua UniversityBeijing 100084China Division of Solar Energy Conversion and Catalysis at Westlake University Zhejiang Baima Lake Laboratory Co.LtdHangzhou 310000ZhejiangChina Institute of Natural Sciences Westlake Institute for Advanced StudyHangzhou 310024ZhejiangChina

Developing Cu single-atom catalysts(SACs)with well-defined active sites is highly desirable for producing CH4 in the electrochemical CO_(2) reduction reaction and understanding the structure-property ***,a new graphdiyne analogue with uniformly distributed N_(2)-bidentate(note that N_(2)-bidentate site=N^N-bidentate site;N_(2)≠dinitrogen gas in this work)sites are *** to the strong interaction between Cu and the N_(2)-bidentate site,a Cu SAC with isolated undercoordinated Cu-N_(2) sites(Cu1.0/N_(2)-GDY)is obtained,with the Cu loading of 1.0 wt%.Cu1.0/N_(2)-GDY exhibits the highest Faradaic efficiency(FE)of 80.6% for CH_(4) in electrocatalytic reduction of CO_(2) at-0.96 V ***,and the partial current density of CH_(4) is 160 mA cm^(-2).The selectivity for CH_(4) is maintained above 70% when the total current density is 100 to 300 mA cm^(-2).More remarkably,the Cu1.0/N_(2)-GDY achieves a mass activity of 53.2 A/mgCu toward CH4 under-1.18 V *** situ electrochemical spectroscopic studies reveal that undercoordinated Cu-N_(2) sites are more favorable in generating key ^(*)COOH and ^(*)CHO intermediate than Cu nanoparticle *** work provides an effective pathway to produce SACs with undercoordinated Metal-N_(2) sites toward efficient electrocatalysis.

关键词： Carbon dioxide reduction Electrocatalysis Cu single-atom catalyst N-containing graphdiyne Methane

基于电荷耦合元件线阵的接触线磨损测量技术与应用

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城市轨道交通研究 2013年第8期16卷 117-120,125页

作者：李涪汁孙震邓世建中国矿业大学信息与电气工程学院徐州硕士研究生221116

接触线磨损量的测量是改善弓网关系、确保列车正常运行的关键。针对相关技术的现状及发展,对基于DSP(数字信号处理器)和CCD(电荷耦合元件)线阵的非接触测量技术进行了研究。主要设计了利用一片DSP芯片完成对CCD的驱动和数据采集,阐述了... 详细信息

接触线磨损量的测量是改善弓网关系、确保列车正常运行的关键。针对相关技术的现状及发展,对基于DSP(数字信号处理器)和CCD(电荷耦合元件)线阵的非接触测量技术进行了研究。主要设计了利用一片DSP芯片完成对CCD的驱动和数据采集,阐述了芯片时序的产生和配合问题。然后通过图像处理技术对采集到的接触线磨损图像进行处理,从而计算出接触线的磨损量。根据工程测量的实际需要,设计了一套基于线阵CCD和DSP的接触线磨损量监测装置。提出采用线阵CCD和DSP及平行光构成的测量系统,测量精度高、响应时间短,适用于恶劣的工况环境。

关键词：接触线测量电荷耦合元件线阵数字信号处理器图像处理图像测量边缘检测