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A Review on Engineering Transition Metal Compound Catalysts to Accelerate the Redox Kinetics of Sulfur Cathodes for Lithium–Sulfur Batteries

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Nano-Micro Letters 2024年第5期16卷 300-332页

作者： Liping Chen Guiqiang Cao Yong Li Guannan Zu Ruixian Duan Yang Bai Kaiyu Xue yonghong fu Yunhua Xu Juan Wang Xifei Li Shaanxi Key Laboratory of Nanomaterials and Nanotechnology Xi’an University of Architecture and TechnologyXi’an 710055People’s Republic of China Institute of Advanced Electrochemical Energy and School of Materials Science and Engineering Xi’an University of TechnologyXi’an 710048People’s Republic of China Yulin University Yulin 719000People’s Republic of China School of Materials Science and Engineering Fuzhou UniversityFuzhou 350108People’s Republic of China

Engineering transition metal compounds(TMCs)catalysts with excellent adsorption-catalytic ability has been one of the most effec-tive strategies to accelerate the redox kinetics of sulfur ***,this review focuses on engineering TMCs catalysts by cation doping/anion doping/dual doping,bimetallic/bi-anionic TMCs,and TMCs-based heterostructure *** is obvious that introducing cations/anions to TMCs or constructing heterostructure can boost adsorption-catalytic capacity by regulating the electronic structure including energy band,d/p-band center,electron filling,and valence ***,the elec-tronic structure of doped/dual-ionic TMCs are adjusted by inducing ions with different electronegativity,electron filling,and ion radius,resulting in electron redistribution,bonds reconstruction,induced vacancies due to the electronic interaction and changed crystal structure such as lat-tice spacing and lattice *** from the aforementioned two strategies,heterostructures are constructed by two types of TMCs with different Fermi energy levels,which causes built-in electric field and electrons transfer through the interface,and induces electron redistribution and arranged local atoms to regulate the electronic ***,the lacking studies of the three strategies to comprehensively regulate electronic structure for improving catalytic performance are pointed *** is believed that this review can guide the design of advanced TMCs catalysts for boosting redox of lithium sulfur batteries.

关键词： Lithium–sulfur battery Redox kinetic Transition metal compounds catalyst Multiple metals/anions

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H13模具钢电子束选区熔化热行为的模拟研究

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制造技术与机床 2024年第5期 19-26页

作者：张攀付永红西安建筑科技大学机电工程学院陕西西安710055

为了提高H13模具钢在电子束选区熔化技术过程中成型件的表面质量,并探明其成型过程缺陷问题的原因,文章基于离散元法建立了随机分布的金属粉末床模型,对熔体的热流体动力学行为进行数值模拟。单道结果表明,当电子束功率从600 W提高到1 0... 详细信息

为了提高H13模具钢在电子束选区熔化技术过程中成型件的表面质量,并探明其成型过程缺陷问题的原因,文章基于离散元法建立了随机分布的金属粉末床模型,对熔体的热流体动力学行为进行数值模拟。单道结果表明,当电子束功率从600 W提高到1 080 W,扫描速度为1.5 m/s时,单道熔池平均深度从15.2μm增加到49.2μm,单道熔池宽度从79.2μm增加到140.1μm,同时发现电子束功率为960 W,单熔道形貌表面质量最好。双道结果表明,Z型扫描路径会导致熔道的一端形貌粗糙,S型扫描路径熔道内易形成热量累积现象。当电子束能量较低时,会出现球化效应和单道不平直现象。当电子束能量较高时,熔道易出现热量累积现象,影响后续的熔道形貌和尺寸。

关键词： H13模具钢电子束选区熔化数值模拟球化效应不平直现象

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New cooperative frequency domain differential modulation and demodulation

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Journal of Systems Engineering and Electronics 2011年第6期22卷 892-896页

作者： Ke Li Chunping Hou yonghong Hou Jinlin fu School of Electronic and Information Engineering Tianjin University Tianjin 300072 P. R. China

An innovative method of cooperative frequency domain differential modulation and demodulation is *** method applies the prior knowledge of channel propagation to selecting the variable differential length and carrying out frequency domain *** strategy optimizes the design of system parameters to effectively improve the anti-interference ability of the differential system in time-varied multipath channel circumstance without making the execution more *** simulations and comparisons demonstrate the proposed method is effective,and the results show that it is especially suitable for the fading channel with strong propagation and fast time-variation.

关键词： frequency domain differential demodulation differential length cooperative frequency domain differential.

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Luminescence properties of rare earth complexes bonded to novel mesoporous spherical hybrid materials

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Journal of Rare Earths 2023年第1期41卷 60-66页

作者： Lin Huang Juan Wang Haipeng Zhang Guannan Zu Zhentao Wang yonghong fu Shaanxi Key Laboratory of Nanomaterials and Nanotechnology Xi'an University of Architecture and TechnologyXi'an 710055China

YVO_(4):Eu^(3+) phosphors have been widely used in optoelectronic integration fields of its chemical and thermal ***,the excitation spectrum band of VO_(4)^(3-) is too narrow for high-efficiency luminescence,restricting its further ***,flower-like and linear-like YVO_(4):Eu^(3+) hollow mesoporous spheres were synthesized and connected with Eu organic ligand,to obtain a new hybrid luminescent *** characterization shows that the pores of microspheres are in size of about 2-50 nm,sticked with regular morphology,well crystallized,and in uniform *** emission intensity of hybrid luminescent material is higher than that of single YVO_(4):Eu^(3+) and single Eu co mplexes realizing the purpose of mutually reinforcing luminesce *** paper provides a new idea to connect rare earth complexes for a new non-silicon-based mesoporous spherical matrix.

关键词： YVO_(4):Eu^(3+) Mesoporous spheres Hybrid material Luminescence Rare earths

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反应温度及压力对三塘湖盆地褐煤热解产物分布影响

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洁净煤技术 2024年第6期30卷 114-127页

作者：王兴刚焦立新曹志雄李斌韩波黄蝶芳富永红李鑫中国石油吐哈油田分公司勘探开发研究院新疆维吾尔自治区哈密839009 中国石油测井有限公司地质研究院新疆维吾尔自治区克拉玛依834000 新疆大学地质与矿业工程学院新疆维吾尔自治区乌鲁木齐830000

煤在气化通道中气化反应效率是影响煤炭地下气化气体组分与热值的关键问题。为揭示反应温度和压力对三塘湖盆地褐煤在水蒸气中气化行为和产物分布特征影响,基于固定床热解炉对三塘湖盆地西山窑组褐煤进行不同反应温度和压力热解试验。... 详细信息

煤在气化通道中气化反应效率是影响煤炭地下气化气体组分与热值的关键问题。为揭示反应温度和压力对三塘湖盆地褐煤在水蒸气中气化行为和产物分布特征影响,基于固定床热解炉对三塘湖盆地西山窑组褐煤进行不同反应温度和压力热解试验。结果表明:随反应温度升高(300~900℃),气体质量分数由3.84%增至24.29%,水和焦油质量分数先增后减;高温下反应温度升高,加剧二次反应,H_(2)和CH_(4)体积显著增加,900℃体积最大分别为100.89、106.09 mL/g,污染物总质量减少,900℃质量分数相对小,17.72 mg/g。增加反应压力(1.5~3.0 MPa),利于提高半焦转化率和增加气体质量分数。高温下反应压力增加,加剧二次反应,利于反应加氢气化和甲烷化发生,导致CH_(4)体积显著增加,700℃CH_(4)体积最多增加26.89 mL/g,但在700℃会促进自由基加氢饱和反应,污染物总质量增加。建议在实际生产中,通过控制注汽移动速度适当增加反应温度并提高反应压力,且控制气化反应区的温度远离700℃,利于H_(2)和CH_(4)生成,以提高煤炭地下气化工艺高效清洁开发。研究成果可为三塘湖盆地西山窑组褐煤煤炭地下气化工艺提供指导。

关键词：三塘湖盆地煤热解水蒸气氛围反应温度反应压力

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Study on Laser Transformation Hardening of HT250 by High Speed Axis Flow CO_2 Laser

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Journal of Materials Science & Technology 2003年第2期19卷 170-173页

作者： Yunxia YE, yonghong fu and Yongkang ZHANGMechanical Engineering College, Jiangsu University, Zhenjiang 212013, China Mech. Eng. Coll. Jiangsu Univ. Zhenjiang 212013 China

In this article, laser transformation hardening of HT250 material by high speed axis flow CO2 laser was investigated for first time in China. Appropriate laser hardening parameters, such as laser energy power P(W), laser scanning rate V(m/min), were optimized through a number of experiments. The effect of the mentioned parameters on the hardened zone, including its case depth, microhardness distributions etc., were analyzed. Through the factual experiments, it is proved that axial flow CO2laser, which commonly outputs low mode laser beam, can also treat materials as long as the treating parameters used are rational. During the experiments, the surface qualities of some specimens treated by some parameters were found to be enhanced, which does not coincide with the former results. furthermore in the article, the abnormal phenomenon observed in the experiments is discussed. According to the experimental results, the relationship between laser power density q and scanning rate V is shown in a curve and the corresponding formulation, which have been proved to be valuable for choosing the parameters of laser transformation hardening by axial flow CO2 lasers, was also given.

关键词： Laser transformation hardening Hardened case Laser parameters Cast iron

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塔里木盆地台盆区走滑断裂带多层叠加样式及石油地质意义

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新疆石油地质 2024年第4期45卷 387-400页

作者：杨海军能源邵龙飞谢舟康鹏飞袁敬一付永红中国石油塔里木油田分公司新疆库尔勒841000 中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心新疆库尔勒841000 新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心新疆库尔勒841000 中国石油大学(北京)克拉玛依校区石油学院新疆克拉玛依834000 中国石油大学(北京)地球科学学院北京102249 中国石油塔里木油田分公司勘探开发研究院新疆库尔勒841000

随着塔里木盆地油气勘探的不断深入,在台盆区古生界发现大规模走滑断裂系统,提出了一种新型断溶体油气藏。受塔里木盆地多期构造运动的影响,走滑断裂表现出多层结构,具有多期叠加活动特征。基于高品质三维地震资料、钻井资料及油气地质... 详细信息

随着塔里木盆地油气勘探的不断深入,在台盆区古生界发现大规模走滑断裂系统,提出了一种新型断溶体油气藏。受塔里木盆地多期构造运动的影响,走滑断裂表现出多层结构,具有多期叠加活动特征。基于高品质三维地震资料、钻井资料及油气地质资料,对塔里木盆地大型走滑断裂的多层叠加特征及对油气的控制作用展开研究。研究结果表明:塔里木盆地台盆区走滑断裂带在古生界主要发育5个结构层,分别为下寒武统盐下构造层、中寒武统盐构造层、上寒武统—中奥陶统碳酸盐岩构造层、上奥陶统—石炭系碎屑岩构造层和二叠系岩浆岩构造层;受多期构造运动及走滑断裂带活动的影响,5层结构在空间上具有带状分布、垂向叠置、差异叠加的特征;断裂叠加类型多样,总体上可以分为连接型、叠接型、反转叠加型及反转改造型4种;走滑断裂带叠加方式影响了石油地质条件,可形成多层差异聚集油气藏,主要包括Ⅰ型油气藏(奥陶系碳酸盐岩油气藏)、Ⅱ型油气藏(奥陶系碳酸盐岩油气藏、志留系碎屑岩油气藏及二叠系岩浆岩油气藏)及Ⅲ型油气藏(寒武系盐下层白云岩油气藏)3种类型。

关键词：塔里木盆地台盆区走滑断裂带多层结构构造样式叠加类型成因机制成藏模式

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The Major Controlling Factors and Different Oolitic Shoal Reservoir Characteristics of the Triassic Feixianguan Formation,Eastern Longgang Area,NE Sichuan Basin,SW China

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Acta Geologica Sinica(English Edition) 2021年第3期95卷 895-908页

作者： GU Yifan JIANG Yuqiang LEI Xiaohua CHEN Zhiyong ZHOU Lu fu yonghong JIANG Zengzheng School of Geoscience and Technology Southwest Petroleum UniversityChengdu 610500China Department of Geology University of ReginaReginaSaskatchewanSK S4S 0A2Canada Northeastern Sichuan Oil and Gas District PetroChina Southwest Oil and Gas Field CompanyDazhouSichuan 635000China Chongqing Gas Field PetroChina Southwest Oil and Gas Field CompanyChongqing 400021China Sichuan Geotech Science and Technology Ltd. Chengdu 610041China

Based on comprehensive analyses of occurrence,petrological observation,pore structure and geochemistry,the different reservoir characteristics and reservoir evolutionary pathways between different oolitic shoal reservoir types of the Feixianguan Formation on the west side of the Kaijiang-Liangping Trough have been *** exist three stages of high-energy slope break belts in the Feixianguan period,the corresponding three stages of oolitic shoals gradually migrating in the direction of the *** types of oolitic shoal reservoirs,namely,residual-oolitic dolomite,mold-oolitic dolomite and sparry oolitic limestone,were formed during sedimentary-diagenetic evolution,the pore types being intergranular dissolved pore,mold pore(or intragranular dissolved pore)and residual intergranular pore,*** petrology,physical properties and pore structure of the different types of oolitic shoal reservoirs are quite ***-oolitic dolomite reservoirs have the best quality,while sparry oolitic limestone reservoirs have the *** with analyses of trace elements,rare earth elements and carbon-oxygen isotopes,it is suggested that the formation of residual-oolitic dolomite reservoirs is jointly controlled by penesaline seawater seepage-reflux dolomitization and hydrothermal ***-pore oolitic dolomite reservoirs are controlled by penesaline seawater seepage-reflux dolomitization and meteoric water *** burial dissolution of organic acid not only further improves the reservoir qualities of previously formed oolitic dolomite reservoirs,but also preserves residual intergranular pores in the sparry oolitic limestone reservoirs.

关键词： oolitic shoal reservoir evolution geochemical characteristics Triassic System Feixianguan Formation Sichuan Basin

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Macroscopic superlubricity of potassium hydroxide solution achieved by incorporating in-situ released graphene from friction pairs

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Friction 2023年第4期11卷 567-579页

作者： Hongyu LIANG Xinjie CHEN Yongfeng BU Meijuan XU Gang ZHENG Kaixiong GAO Xijun HUA yonghong fu Junyan ZHANG Institute of Advanced Manufacturing and Modern Equipment Technology School of Mechanical EngineeringJiangsu UniversityZhenjiang 212013China Institute for Energy Research Jiangsu UniversityZhenjiang 212013China ZhenJiang SiLian Mechatronic Technology Co. Ltd.Zhenjiang 212009China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Graphene(G),as a typical two-dimensional material,is often used as an additive for liquid ***,graphene is mostly added to liquid lubricants in a one-time manner in friction;it mainly exists in the form of multilayer agglomerated structures due to theπ–πstacking between graphene sheets,making it unable to fully exert the synergistic lubrication ***,we propose a new macroscopic superlubric system of graphene/potassium hydroxide(G/KOH)solution;and the graphene additive involved is exfoliated in-situ from graphene/epoxy(G/EP)friction pair by friction,continuously providing freshly-peeled graphene into KOH solution and minimizing the adverse effects of graphene ***,the in-situ produced graphene additive has thinner thickness and better anti-aggregation ability,which provide more graphene to accommodate OH−,form more stacked sandwich structures of OH−/graphene/OH−between friction pairs(i.e.,equivalent to a moving pulley block with more wheels),and finally realize *** study develops a new liquid superlubric system suitable for alkaline environments,and at the same time proposes a new way to gradually release graphene additives in situ,rather than adding them all at once,deepening the understanding to liquid superlubricity mechanism,and paving the experimental foundation for the practical application of macroscopic superlubricity.

关键词： liquid superlubricity concentrated potassium hydroxide(KOH)solution in-situ graphene(G)additives stacked sandwich structure electric double layer(EDL) hydrogen bonds(H-bonds)

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塔里木盆地晚奥陶世至侏罗纪不整合面分布特征及成因

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沉积与特提斯地质 2024年第2期44卷 351-368页

作者：李跨越能源黄少英段云江侯筱晓胡建宁付永红姜帅中国石油大学(北京)地球科学学院北京昌平102249 中国石油大学(北京)克拉玛依校区新疆克拉玛依834000 中国石油塔里木油田公司勘探开发研究院新疆库尔勒841000

不整合研究对盆地演化、古地貌重建及油气勘探具有重要指导意义。受多期构造活动影响,塔里木盆地发育多种不整合。本文通过地震剖面资料分析,研究盆地晚奥陶世—侏罗纪形成的不整合面展布及结构特征,并探讨其动力学机制。研究结果表明:... 详细信息

不整合研究对盆地演化、古地貌重建及油气勘探具有重要指导意义。受多期构造活动影响,塔里木盆地发育多种不整合。本文通过地震剖面资料分析,研究盆地晚奥陶世—侏罗纪形成的不整合面展布及结构特征,并探讨其动力学机制。研究结果表明:(1)塔里木盆地不整合结构类型主要有平行、削截、褶皱、断褶、叠加超覆、单一超覆及异岩不整合;(2)志留系底界发育断褶、褶皱、削截、叠加超覆、单一超覆及平行不整合,呈东西带状分布,在盆地中南部发育大范围角度不整合,阿瓦提–满加尔坳陷中北部发育平行不整合,塔北隆起发育小范围角度不整合;泥盆—石炭系底界主要发育平行、削截、断褶、单一超覆、叠加超覆及异岩不整合,平面分布具有以北部坳陷沉积中心连线为轴近似南北对称特点;三叠系底界不整合由北向南,发育叠加超覆不整合、低角度削截不整合、平行不整合,反映海西晚期盆地北缘南天山洋闭合造山运动;侏罗系底界发育褶皱、叠加超覆、削截及异岩不整合,整体以满加尔–英吉苏凹陷沉积中心连线为轴似对称分布;(3)不整合面分布特征反映出构造运动的差异性、古隆起的迁移及活动性,不整合对盆内油气成藏具有控制作用。

关键词：不整合盆地演化古地貌塔里木盆地古隆起

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