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Shedding light on the role of interfacial chemical bond in heterojunction photocatalysis

Nano Research 2022年第12期15卷 10158-10170页

作者： Yueshuang Mao pengfei wang Sihui Zhan MOE Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin300350China Tianjin Key Lab Clean Energy&Pollutant Control School of Energy and Environmental EngineeringHebei University of TechnologyTianjin300401China

Faced with the growing consumption of fossil fuels and the consequent energy/ecological crisis,photocatalysis has become a realistic option to develop new energy source and realize the carbon *** photocatalysts constructed by multiple semiconductors with staggered band structure can spatially separate redox reaction sites to realize synergistic oxidation and reduction reactions,and have captured broad ***,the undesigned heterojunctions still encounter some headache difficulties,that is the poor interfacial contact,which will block carrier mobility,thus result in inefficient and instable ***,researchers have been focusing on constructing chemical bonds(especially covalent bonding)between different semiconductors to induce the formation of intimate and stable interface ***,this review article presents the state-of-the-art progress on interfacial chemical bonds(ICB)in heterojunction photocatalysts and clarifies the function mechanism for enhancing *** that the formation of ICB strongly depends on the surface characteristics of semiconductors,we clarify the formation mechanism and put forward rational design *** importantly,the current photocatalytic applications of ICB are reviewed to have a deep understanding of structure-activity related ***,our brief outlooks on the current challenges and future development trends of ICB for next-generation photocatalysts are pointed out to create brand-new strategies for optimizing photocatalytic properties and accelerate the practical applications of ICB with high-performance.

关键词： photocatalysis heterojunction interfacial chemical bond structure-activity relationships charge transfer

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Effects of Magnetic Fields on Morphology and Nanostructure Evolution of Incipient Soot Particles from n-heptane/2,5-dimethylfuran Inverse Diffusion Flames

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Journal of Thermal Science 2020年第3期29卷 820-839页

作者： JIANG Bo wang pengfei LIU Dong MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China Advanced Combustion Laboratory School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China Jiangsu Province Key Laboratory of Aerospace Power System Nanjing 210016China

Differences of the morphology and nanostructure evolution of incipient soot particles generated in n-heptane/2,5-dimethylfuran(DMF)inverse diffusion flames(IDFs)with/without magnetic fields were *** a high resolution transmission electron spectroscopy,the morphology and nanostructures of soot sampled from spatial locations at different heights in IDFs were *** graphitization and the oxidation reactivity of soot were tested by an X-ray diffraction and a thermogravimetric analyzer,*** demonstrated that the magnetic force on paramagnetic species,such as oxygen molecules,can modify the soot formation and *** incipient soot particles with larger diameters appeared in chains or branches or tufted forms on the flame wing region and the higher position than that on the flame centerline region and the lower *** magnetic fields,greater amounts of clustered soot particles displayed more crowded distribution and larger *** particles with typical structures of the core-shell were promoted to own more orderly bordered lamellae with longer fringe length and smaller fringe tortuosity by the magnetic force acting on oxygen at the same sample *** modifications resulted in relatively larger diffraction angle of the peak,higher graphitization degree and slightly lower oxidation reactivity of soot.

关键词： magnetic fields incipient soot particle n-heptane/DMF morphology nanostructure evolution

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On the mathematically reliable long-term simulation of chaotic solutions of Lorenz equation in the interval [0,10000]

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Science China(Physics,Mechanics & Astronomy) 2014年第2期57卷 330-335页

作者： LIAO ShiJun wang pengfei State Key Laboratory of Ocean Engineering School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong University Nonlinear Analysis and Applied Mathematics Research Group (NAAM) King Abdulaziz University (KAU) State Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of Sciences

Using 1200 CPUs of the National Supercomputer TH-A1 and a parallel integral algorithm based on the 3500th-order Taylor expansion and the 4180-digit multiple precision data,we have done a reliable simulation of chaotic solution of Lorenz equation in a rather long interval 0 t 10000 LTU(Lorenz time unit).Such a kind of mathematically reliable chaotic simulation has never been *** provides us a numerical benchmark for mathematically reliable long-term prediction of ***,it also proposes a safe method for mathematically reliable simulations of chaos in a finite but long enough *** addition,our very fine simulations suggest that such a kind of mathematically reliable long-term prediction of chaotic solution might have no physical meanings,because the inherent physical micro-level uncertainty due to thermal fluctuation might quickly transfer into macroscopic uncertainty so that trajectories for a long enough time would be essentially uncertain in physics.

关键词： chaos reliable simulation uncertainty propagation

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An Improved Biogeography-Based Optimization Algorithm for Blocking Flow Shop Scheduling Problem

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Chinese Journal of Electronics 2018年第2期27卷 351-358页

作者： LIU Shufen wang pengfei ZHANG Jiachen College of Computer Science and Technology Jilin University

To solve the blocking flow shop scheduling with maximum completion time(i.e. makespan) criterion,we proposed an Improved biogeography-based optimization algorithm(IBBO). The framework of basic BBO algorithm is used in the IBBO algorithm, and the introduction of the NEH algorithm make IBBO algorithm with certain quality and diversity. The migration operation based on the insert rules and the mutation operation based on swap rules are presented to avoid the occurrence of illegal solution of the blocking flow shop problem. An insertneighborhood search algorithm was used to strengthen the local search ability of the IBBO. The computational results show the effectiveness of the proposed IBBO algorithm in solving the blocking flow shop scheduling with maximum completion time criterion.

关键词： Blocking flow shop Biogeography-based optimization Makespan Insert-neighborhood search algorithm

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An Effective Biogeography-Based Optimization Algorithm for Flow Shop Scheduling with Intermediate Buffers

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Chinese Journal of Electronics 2018年第6期27卷 1141-1150页

作者： LIU Shufen wang pengfei YAO Zhilin College of Computer Science and Technology Jilin University

This paper proposes an Effective biogeography-based optimization(EBBO) algorithm for solving the flow shop scheduling problem with intermediate buffers to minimize the Total flow time(TFT). Discrete job permutations are used to represent individuals in the EBBO so the discrete problem can be solved directly. The NEH heuristic and NEH-WPT heuristic are used for population initialization to guarantee the diversity of the solution. Migration and mutation rates are improved to accelerate the search process. An improved migration operation using a two-points method and mutation operation using inverse rules are developed to prevent illegal solutions. A new local search algorithm is proposed for embedding into the EBBO algorithm to enhance local search *** simulations and comparisons demonstrated the superiority of the proposed EBBO algorithm in solving the flow shop scheduling problem with intermediate buffers with the TFT criterion.

关键词： Flow shop scheduling Intermediate buffer Total flow time(TFT) Biogeography-based optimization algorithm Local search algorithm

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气化车间PSA系统CO提质优化改造小结

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广东化工 2025年第2期52卷 104-106,115页

作者：王鹏飞王晶晶安阳化学工业集团有限责任公司河南安阳455133 安阳九天精细化工有限责任公司河南安阳455133

随着我国经济和社会的不断发展,各个领域的科技水平都有了很大提高。目前,低温和电解法在CO净化领域已经不再适合,其净化效果和工作效率远不如变压吸附净化。变压吸附法是一种具有投资少,流程简单,分离系数高,产品纯度高等优点,被世界... 详细信息

随着我国经济和社会的不断发展,各个领域的科技水平都有了很大提高。目前,低温和电解法在CO净化领域已经不再适合,其净化效果和工作效率远不如变压吸附净化。变压吸附法是一种具有投资少,流程简单,分离系数高,产品纯度高等优点,被世界各国普遍采用。本文简要介绍了安阳化学工业集团有限责任公司气化车间PSA系统CO提质优化改造的情况。通过改造真空泵填料、更换吸附剂、增加除水装置、优化脱硫系统等措施,实现了进一步提升产品气CO纯度的目标。

关键词： PSA系统 CO提质优化改造生产效益真空泵

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我国应急能力提升信息化建设初探

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灾害学 2025年第1期40卷 135-139,152页

作者：肖甜甜张志王毅王棚飞狄瑞晟邢晓毅应急管理部大数据中心北京100013

围绕“大安全、大应急”框架,在分析了国内外应急管理信息化建设的进展后,结合我国应急管理信息化的现状和国际发展趋势,通过复盘2021年7月河南郑州“7·20”特大暴雨灾害与2023年7月京津冀地区洪涝灾害应急处置过程,发现主要存在灾害... 详细信息

围绕“大安全、大应急”框架,在分析了国内外应急管理信息化建设的进展后,结合我国应急管理信息化的现状和国际发展趋势,通过复盘2021年7月河南郑州“7·20”特大暴雨灾害与2023年7月京津冀地区洪涝灾害应急处置过程,发现主要存在灾害预警响应、统一指挥调度和综合研判能力不足三大问题。提出构建灾后应急管理“神经网络”“血管脉络”“骨骼肌肉”“五脏六腑”总体建设思路,采用基于感传知用的“四横四纵”系统架构,贯穿灾害监测、预警、响应、处置全过程,并针对实战中存在的问题提出了加强与多部门数据共建共享共用机制,制定应对方法,构建灾后应急能力提升体系,提升应急处置效能及防灾减灾救灾水平。

关键词：应急管理信息化系统架构郑州“7·20”特大暴雨灾害京津冀洪涝灾害

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基于GIS与AHP的遗址公园未来发展趋势探究——以开封古城墙公园为例

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林业调查规划 2025年第1期50卷 1-10页

作者：卓傲王鹏飞河南农业大学风景园林与艺术学院河南郑州450002

为实现城市更新规划中遗址公园效益最大化,以开封古城墙公园为研究对象,采用AHP层次分析法构建遗址公园评价准则,并对评价指标进行赋值,构建公园城市背景下遗址公园完善度评价指标体系,利用GIS技术实现评价结果可视化。综合评价结果,开... 详细信息

为实现城市更新规划中遗址公园效益最大化,以开封古城墙公园为研究对象,采用AHP层次分析法构建遗址公园评价准则,并对评价指标进行赋值,构建公园城市背景下遗址公园完善度评价指标体系,利用GIS技术实现评价结果可视化。综合评价结果,开封古城墙公园一致性较高,大多数区域处于一般水平,受建造及改造时间影响,较早完工的南城墙公园综合评价中等偏下,经过修缮的东北角—曹门城墙公园评价结果中等偏上,大梁门—西北门段城墙公园遗址保护满足度最高,满足度最低的是曹门—东南角城墙公园。提出加快遗址修缮进展,对道路系统进行更新以增加公园使用便捷性,加强对城墙内侧公园的规划等建议。

关键词：遗址公园公园城市完善度评价指标体系 GIS AHP 开封古城墙公园

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常减压蒸馏装置掺炼高硫重质蜡油对沥青及润滑油产品的影响

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石油炼制与化工 2025年第2期56卷 73-77页

作者：娄井阳刘利民汪鹏飞中海沥青(营口)有限责任公司辽宁营口115007

某炼油企业针对高硫蜡油硫含量过高而不满足润滑油高压加氢装置(简称润滑油装置)使用要求的问题,研究在常减压蒸馏装置加工绥中36-1原油时掺炼一定量的高硫重质蜡油,考察其对所产蜡油(润滑油装置原料)和沥青产品性质及收率的影响,以及... 详细信息

某炼油企业针对高硫蜡油硫含量过高而不满足润滑油高压加氢装置(简称润滑油装置)使用要求的问题,研究在常减压蒸馏装置加工绥中36-1原油时掺炼一定量的高硫重质蜡油,考察其对所产蜡油(润滑油装置原料)和沥青产品性质及收率的影响,以及掺炼后所得蜡油通过润滑油装置加工后对其产品的影响。结果表明:绥中36-1原油掺炼少量高硫重质蜡油后,常减压蒸馏装置所产蜡油硫含量略有增加,运动黏度和馏程等指标变化不大,满足后续润滑油装置使用要求;常减压蒸馏装置所产沥青的族组成中饱和分和胶质含量降低,芳香分含量有所升高,说明掺炼的高硫重质蜡油对沥青组成造成了影响,改变了产品结构,但其软化点、针入度、蜡含量、动力黏度等指标均满足重交通道路沥青产品指标要求;常减压蒸馏装置蜡油收率明显增加、沥青产品收率明显降低;润滑油装置加工掺炼后的蜡油,橡胶增塑剂产品收率有所升高,紫外光安定性和热安定性有所降低,但仍满足产品指标要求。

关键词：绥中36-1原油高硫重质蜡油沥青润滑油橡胶增塑剂变压器油

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Research on thin grid materials of lead-acid batteries

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Rare Metals 2006年第z1期25卷 43-46页

作者： wang Erdong SHI pengfei GAO Jun Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China State Key laboratory for Physical Chemistry of Solid Surfaces Department of Chemistry Xiamen University Xiamen 360005 China

A detailed investigation on Pb-Ca-Sn alloys was made in order to choose suitable grid alloys materials for thin plate lead-acid batteries. The electrochemical performances of alloys were investigated by electrochemical corrosion experiment, scanning electron microscope (SEM), and cyclic voltammetry (CV) test. The results indicate that Pb-Ca-Sn-Bi-Cu alloys can be used to make the grids used for thin grid lead-acid batteries, the content of bismuth has primary effects on the corrosion resistance of grid alloys, the composition of alloys plays an important role on batteries performance, and appropriate scale of elements can be choosed to obtain optimal electrochemical performance. The lead-acid batteries using this kind of grid show good performance by cycle life test.

关键词： lead-acid batteries grid alloys corrosion

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