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Nano Research 2020年第3期13卷 646-652页

作者： Caihong He Lingli Yu Na lu Wenjing Wang Wei Chen shaojie lu Yun Yang Dekun Ma Shaoming Huang Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035China School of Materials and Energy Guangdong University cf TechnologyGuangzhou 510006China

Heterostructured bimetal nanocrystals with a component having localized surface plasmon resonance(LSPR)property are promising photocatalysts for a series of *** this work,kinetic products of Pd-Ag with a screwdriver-like heterostructure have been successfully fabricated via the selective epitaxial growth of Ag on Pd nanowires(NWs).It was confirmed that the deposition rate(Vdeposition)of Ag is much more sensitive to the temperature,compared to the surface diffusion rate(Vdiffusion)which can be effectively reduced by the binding of poly(vinylpyrrolidone)(PVP)*** the magnitude of Vdeposition/Vdiffusion has been well tailored for the formation of a kinetic growth *** interactions between the components of the as-prepared Pd-Ag heterostructures resulted in intensified LSPR *** a result,they gained better photocatalytic performance toward solvent free aerobic oxidation of toluene than Pd NWs,Ag NWs and the mixture of ***,the Pd-Ag heterostructured nanocrystals exhibited excellent catalytic stability for *** work not only presents an idea for realizing kinetic growth but also supports that LSPR effect is a good tool for improving the photocatalytic activity.

关键词： heterostructure selective growth kinetics aerobic oxidation reaction

Design and experiment of vertical pneumatic fertilization system with spiral Geneva mechanism

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International Journal of Agricultural and Biological Engineering 2021年第4期14卷 135-144页

作者： Haibo Chen Jingfu Zheng shaojie lu Shan Zeng Silong Wei Experimental Basis and Practical Training Center South China Agricultural UniversityGuangzhou 510642China College of Engineering South China Agricultural UniversityGuangzhou 510642China

In the traditional fertilization method,a large amount of fertilizer is applied,which causes congestion *** is not conducive to the sustainable development of *** this work,a vertical pneumatic fertilization system with a spiral Geneva mechanism was designed according to the operational requirements of variable-rate and smooth *** uniformity in discharging fertilizer with different spiral angles was simulated and analyzed by extended discrete element method(EDEM)based simulation software,from where the spiral angle of the fertilizer discharge wheel was determined to be 45°.The fertilization system includes a fertilizer apparatus with a spiral Geneva mechanism,whose optimal performance parameters were obtained from the bench *** accuracy and uniformity of the fertilizer application system were taken as the evaluation *** linear relationships of the discharged amount of fertilizer with the rotational speed and the opening of the fertilizer discharging wheel were verified by both static blowing fertilization and field *** static blowing experimental results show that the discharged amount of fertilizer has a high linear correlation and accuracy with both the opening and rotational speed,and the highest correlation occurs with the rotational *** rotational speed and opening have significant effects on the discharged amount of fertilizer and the average coefficient of *** effect of the rotational speed was the most *** to the model obtained by multiple regression fittings,the optimal parameters were determined when the average coefficient of variation was small,the rotational speed was 15.9 r/min and the opening was 34.4 ***,the purpose of precise fertilization can be achieved by adjusting the opening or rotational speed in a way to get the exact amount of fertilizer discharged as required by the corresponding *** field experiment showed that the variation co

关键词： precision fertilization fertilizer apparatus variable rate technology spiral Geneva mechanism simulation analysis performance experiment

Failure analysis and control measures of deep roadway with composite roof:a case study

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International Journal of Coal Science & Technology 2022年第1期9卷 120-137页

作者： Yongliang Li Renshu Yang Shizheng Fang Hai Lin shaojie lu Ye Zhu Maosheng Wang School of Energy and Mining Engineering China University of Mining and Technology(Beijing)Beijing 100083China School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China School of Mechanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China

There is great variation in the lithology and lamination thickness of composite roof in coal-measure strata;thus,the roof is prone to delamination and falling,and it is difficult to control the surrounding rock when developing roadway in such rock *** deep mining,the stress environment of surrounding rock is complex,and the mechanical response of the rock mass is different from that of the shallow rock *** composite-roof roadway excavated in deep rock mass,the key to safe and efficient production of the mine is ensuring the stability of the *** present paper obtains typical failure characteristics and deformation and failure mechanisms of composite-roof roadway with a buried depth of 650 m at Zhaozhuang Coal Mine(Shanxi Province,China).On the basis of determining a reasonable cross-section shape of the roadway and according to the failure characteristics of the composite roof in different regions,the roof is divided into an unstable layer,metastable layer,and stable *** controlled unstable layer and metastable layer are regarded as a small structure while the stable layer is regarded as a large structure.A superimposed coupling support technology of large and small structures with a multi-level prestressed bearing arch formed by strong rebar bolts and highly prestressed cable bolts is put *** support technology provides good application results in the *** study thus provides theoretical support and technical guidance for ground control under similar geological conditions.

关键词： Deep mining Composite roof Failure mechanism Ground control

Ultrathin ternary PtNiGa nanowires for enhanced oxygen reduction reaction

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Chinese Chemical Letters 2024年第2期35卷 599-603页

作者： Giday Fisseha Yiping Hu Yanan Yu shaojie lu Dongsheng Ma Pei Nian Zheng Wang Qin Yue Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering School of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021China

Achieving high activity and durability for the oxygen reduction reaction(ORR)with an ultra-low amount of platinum is significant to promote the widespread application of proton exchange membrane fuel cells(PEMFCs).Here we report a new ultrathin(∼1 nm)ternary PtNiGa alloy nanowires(PtNiGa NWs)electrocatalyst,in which the presence of gallium(Ga)enhances the oxidation resistance of platinum(Pt)and nickel(Ni)and suppresses the dissolution of *** mass and specific activities of PtNiGa NWs are about 11.2 and 7.6 times higher than those of commercial Pt/C catalysts for ***,the mass activity of PtNiGa/C NWs nanocatalyst decreased only by 12.8%and largely retained its electrochemical surface area(ECSA)after 10,000 potential cycles,compared with 38%loss of ECSA for commercial Pt/C ***,this work provides a general guideline for preparing ternary alloy electrocatalysts and enhancing the activity and stability of the cathode ORR reaction of PEMFCs.

关键词： Ultrathin nanowires Gallium Oxygen reduction reaction Ternary alloy Durability

Amorphous M0S2 confined in nitrogen-doped porous carbon for improved electrocatalytic stability toward hydrogen evolution reaction

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Nano Research 2019年第12期12卷 3116-3122页

作者： shaojie lu Wenjing Wang Shengshuang Yang Wei Chen Zhongbin Zhuang Wenjing Tang Caihong He Jiajing Qian Dekun Ma Yun Yang Shaoming Huang Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China

Developing non-precious metal catalysts with high activity and stability for electrochemical hydrogen evolution reaction(HER)is of great significance in both scie nee and tech no *** this work,N-doped CMK-3,which was prepared with a casting method using SBA-15 as thehard template and ammonia as the nitrogen source,has been utilized to hold MoS2 and restrict its growth to form MoS2@N-CMK-3 *** a result,M0S2 was found to have poorly crystallized and the limited space of porous N-CMK-3 made its size much *** there are moreactive sites in ***,MoS2@N-CMK-3 has exhibited good electrocatalytic performance toward HER in acids with a quite small Tafelslope of 32 mV·dec^-*** more importantly,compared to MoS2@CMK-3,its stability has been greatly improved,which can be attributedto the interaction between M0S2 and nitrogen atoms avoiding aggregation and mass *** work provides an idea that doping a porouscarbon support with nitrogen is an effective way to enhance the stability of the catalyst.

关键词： M0S2 amorphous N-doped CMK-3 hydrogen evolution reaction(HER) stability

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食用化学品的发展前景

现代化工 2000年第9期20卷 1-5页

作者：吕绍杰中国食品日用化学品工业协会北京100011

食用化学品是重要的精细化工产品 ,市场呈稳步增长趋势。我国食用化学品生产已初具规模 ,可基本满足食品工业的需要 ,还有少量出口。本文介绍了我国主要食用化学品的现状及发展前景。

关键词：食用化学品品种市场发展前景

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产品售后服务捆绑销售与营销策略演化

系统工程理论与实践 2018年第7期38卷 1740-1749页

作者：王先甲吕少杰全吉武汉大学经济与管理学院武汉430072 武汉大学系统工程研究所武汉430072 武汉理工大学管理学院武汉430072

产品的售后服务已成为影响消费者购买行为不可忽视的因素,企业通常会采取捆绑销售或单独销售的方式向消费者提供更优质的售后服务.考虑消费者的异质性并引入竞争导向型企业,通过构建Hotelling以及复制子动态演化博弈模型分析企业短期均... 详细信息

产品的售后服务已成为影响消费者购买行为不可忽视的因素,企业通常会采取捆绑销售或单独销售的方式向消费者提供更优质的售后服务.考虑消费者的异质性并引入竞争导向型企业,通过构建Hotelling以及复制子动态演化博弈模型分析企业短期均衡价格以及长期演化稳定的销售策略.研究发现：较高的售后服务成本会促使一方采取捆绑销售策略并使得双方均获益,捆绑销售策略将与单独销售策略共存;非基本消费者比例越高单独销售策略越有利,单独销售策略将成为最终的演化稳定策略;相比较竞争导向型的企业而言,利润导向型企业更倾向于选择捆绑销售策略;仿真分析表明高售后服务成本下采取跟随策略的非理性企业会被淘汰,而在低售后服务成本下这一类型企业将会存在于市场上.

关键词：售后服务异质性消费者捆绑销售竞争导向演化博弈

STUDY ON SYNTHESIS OF SUPERABSORBENT OF STARCH-GRAFT-POLY(KAA-CO-AAm) BY INVERSE SUSPENSION COPOLYMERIZATION

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Chinese Journal of Reactive Polymers 2002年第1期11卷 17-25页

作者： LIN Songbai lu shaojie** YAO Kangde Tianjin University , Tianjin 300072, China Tianjin University Tianjin 300072 China

Synthesis of superabsorbent of starch-graft-poly(potassium acrylate-co-acrylamide) has been studied by inverse suspension polymerization. In this paper, the effects of reaction conditions, such as, monomeric concentration, the amount of cross-linking agent, ratio of water to oil, reaction temperature and the best condition being able to obtain the spherical resin were investigated. Experiments show that the water-absorbing resin is strong and capable of resisting pressure of retain water. It keeps the shape of particles after absorbing water. After mixing with soil, it does not become sticky, and the coos structure can better retain air. It just fit agriculture and forest. In addition, thermogravimetric analysis revealed the superior thermal stability of the grafted product, and its large size particles also reduces risk of air pollution.

关键词： Graft copolymers Copolymerization Resins Inverse suspension copolymerization

过渡元素掺杂对纳米TiO_2光催化剂性能的影响

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化学学报 2002年第3期60卷 463-467页

作者：冯良荣吕绍洁邱发礼中国科学院成都有机化学研究所成都610041

以沉淀法制备得到了第一过渡系 2 3至 30号元素 (V ,Cr,Mn ,Fe ,Co ,Ni,Cu ,Zn)分别掺杂的纳米TiO2 光催化剂 .考察了它们光催化降解水中十二烷基苯磺酸钠的活性 ,研究了它们的光催化活性与催化剂微晶结构、电子亲和势与离子半径比、离... 详细信息

以沉淀法制备得到了第一过渡系 2 3至 30号元素 (V ,Cr,Mn ,Fe ,Co ,Ni,Cu ,Zn)分别掺杂的纳米TiO2 光催化剂 .考察了它们光催化降解水中十二烷基苯磺酸钠的活性 ,研究了它们的光催化活性与催化剂微晶结构、电子亲和势与离子半径比、离子的磁矩之间的关系 .发现其催化活性的变化与这些元素的稳定氧化态的电子亲和势与离子半径的比值和掺杂原子的磁矩具有较好的相关性 .而催化剂的 (10 1)晶面的XRD衍射强度、微晶尺寸和晶格畸变应力对催化活性也具有一定的影响 .

关键词：过渡元素纳米TiO 光催化剂二氧化钛掺杂光催化催化活性环境污染治理

气固相合成Ti—ZSM—5催化苯乙烯环氧化对映选择性的研究

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化学学报 2000年第11期58卷 1322-1326页

作者：徐成华吕绍洁邱发礼中国科学院成都有机化学研究所天然气开放实验室成都610041

用TiCl_4气固相同晶取代法制得的Ti-ZSM-5作催化剂,研究了以H_2O_2为氧化剂氧化苯乙烯生成环氧苯乙烷的对映选择性,发现生成的环氧苯乙烷主要以R构型为主.考察了反应时间,反应温度,催化剂Ti-ZSM-5以及氧化剂[w(H_2O_2)=30％]的用量等反... 详细信息

用TiCl_4气固相同晶取代法制得的Ti-ZSM-5作催化剂,研究了以H_2O_2为氧化剂氧化苯乙烯生成环氧苯乙烷的对映选择性,发现生成的环氧苯乙烷主要以R构型为主.考察了反应时间,反应温度,催化剂Ti-ZSM-5以及氧化剂[w(H_2O_2)=30％]的用量等反应条件对苯乙烯环氧化反应对映选择性的影响.结果表明,反应温度是影响环氧化反应对映选择性的重要因素,降低反应温度有利于提高对映选择性(ee),当反应温度≤40℃时,ee值可达100％;而反应时间,催化剂及氧化剂[w(H_2O_2)=30％]用量对环氧化反应的对映选择性几乎没有影响.

关键词： Ti-ZSM-5 ASG 苯乙烯环氧化对映选择性催化剂