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Carbon-supported CeNCl as an efficient catalyst for CO_(2)cycloaddition

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Nano Research 2025年第1期18卷 157-163页

作者： Li Liu Lingling Zhang Xiang Chu Baokang Geng huilin wang Zongxiang Li Xiao wang Shuyan Song Hongjie Zhang School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Sinocare Incorporation Changsha 410221China Department of Chemistry Tsinghua UniversityBeijing 100084China

The cycloaddition reaction of CO_(2)with epoxide not only effectively reduces the concentration of CO_(2)in the atmosphere,but also has excellent industrial application value and up to 100%atom utilization,but there are difficulties in separation and recovery of traditional homogeneous catalysts,harsh reaction conditions of traditional heterogeneous catalysts,and activation of CO_(2)*** this paper,an easily synthesized heterogeneous catalyst CeNCl/C was used to catalyze the cycloaddition reaction of CO_(2)with styrene oxide,with a high yield of 92.7%,a high selectivity of 96.7%,a turnover numbers(TON)value of 349,and a good stability demonstrated in six cycle tests(equivalent to 216 h of testing).Through comprehensive studies,it was shown that CeNCl/C contains Lewis acid-base centers as active centers,which can effectively reduce the energy barrier required for ring opening of the reaction substrate,enhance the adsorption and activation of CO_(2),and promote the formation of intermediates,which led to the acquisition of excellent catalytic activity.

关键词： CO_(2)cycloaddition heterogeneous catalysis CeNCl Lewis acid/base

强化阅读关键能力考查侧重学生高阶思维培养——2024年高考英语新课标Ⅰ卷阅读理解试题评析

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英语教师 2025年第4期25卷 77-81,94页

作者：王慧霖广东省中山市第一中学广东中山528400

阐述高中英语阅读理解的关键能力和高阶思维。从考查阅读关键能力与高阶思维的角度评析2024年新课标Ⅰ卷阅读理解的部分高档题目。研究发现,2024年新课标I卷阅读理解对考生的高阶思维能力提出了更高的要求。分享从中获得的考教衔接的启... 详细信息

阐述高中英语阅读理解的关键能力和高阶思维。从考查阅读关键能力与高阶思维的角度评析2024年新课标Ⅰ卷阅读理解的部分高档题目。研究发现,2024年新课标I卷阅读理解对考生的高阶思维能力提出了更高的要求。分享从中获得的考教衔接的启示,即加强对学生语篇结构分析意识与能力的培养,借助语步分析工具开展语篇结构分析教学。

关键词：高考英语试题评析高阶思维考教衔接语步分析

In-situ micro-spectroscopy technique for chemical bonding during nucleation: A transition from soft bond to stiff bond

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Science China(Technological Sciences) 2020年第9期63卷 1868-1870页

作者： XUE DongFeng wang huilin State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

In-situ technique has been widely used in recent years since the advent of high-resolution spectroscopy systems, which stimulates us to probe into the time-dependent, dynamic behaviors and relevant mechanisms during a series of physical processes [1]. Especially, in-situ analysis presents a unique real-time glimpse into the fascinating physical phenomena [2], which are very important to develop the materials for subsequent applications.

关键词： spectroscopy bonding transition

不同灌水量对日光温室黄瓜农艺性状与光合效率的影响

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中国瓜菜 2025年第1期38卷 115-121页

作者：陈丽琴刘刚王惠林胡亮亮新疆农业大学园艺学院乌鲁木齐830052

为探究不同灌水量对日光温室黄瓜农艺性状和光合效率的影响,以津园60黄瓜为材料,设置5个不同灌水量的处理,分别为CK(253.39 mm)、A1(153.39 mm)、A2(453.39 mm)、A3(653.39 mm)和A4(853.39 mm),研究其对设施黄瓜的主要农艺性状(株高、... 详细信息

为探究不同灌水量对日光温室黄瓜农艺性状和光合效率的影响,以津园60黄瓜为材料,设置5个不同灌水量的处理,分别为CK(253.39 mm)、A1(153.39 mm)、A2(453.39 mm)、A3(653.39 mm)和A4(853.39 mm),研究其对设施黄瓜的主要农艺性状(株高、茎粗、叶面积、节间长度、干物质含量及根冠比、根长)、叶片叶绿素相对含量(SPAD值)、光合效率[光合速率(Pn)、气孔导度(C_(s))、蒸腾速率(T_(r))和胞间CO_(2)浓度(C_(i))]以及单果质量的影响。结果表明,相比其他处理,在A3处理下黄瓜各农艺性状指标均有明显升高,同时单果质量在A3处理下达到最大,为169.2 g。此外,在黄瓜叶片光合效率方面,A3处理相较于其他处理,光合速率、气孔导度和蒸腾速率明显上升,而胞间CO_(2)浓度明显降低,其中光合速率最高可达到23.40μmol·m^(-2)·s^(-1)。综合分析,津园60黄瓜在日光温室条件下灌水量为653.39 mm时可明显促进黄瓜生长发育,提高黄瓜光合效率和产品质量。

关键词：黄瓜日光温室灌水量农艺性状光合效率

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Surface Expressions of Rayleigh-Taylor Instability in Continental Interiors

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Acta Geologica Sinica(English Edition) 2014年第3期88卷 1004-1016页

作者： wang huilin Claire A CURRIE ZHAN Yan University of Alberta State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration

Two-dimensional thermal-mechanical numerical models show that Rayleigh-Taylor-type （RT） gravitational removal of high-density lithosphere may produce significant surface deformation （vertical deflection 〉1000 m） in the interior of a continental plate.A reasonable range of crustal strengths and thicknesses,representing a variation from a stable continental interior to a hot orogen with a thick crust,is examined to study crustal deformation and the surface deflection in response to an RT *** general,three types of surface deflection are observed during the RT drip event：（1） subsidence and negative topography; （2） uplift and positive topography; （3） subsidence followed by uplift and inverted *** key factor that determines the surface expression is the crustal *** with a thin crust mainly show subsidence and develop a *** the thick crust models,surface expressions are more variable,depending on the crustal strength and depth of highdensity *** weak crust and a deep high-density anomaly,the RT drip is decoupled from the overlying crust,and the surface exhibits uplift or little deflection,as the RT drip induces contraction and thickening of the overlying *** contrast,with a strong crust and shallow anomaly,the surface is more strongly coupled with the drip and undergoes subsidence,followed by uplift.

关键词： intraplate tectonics Rayleigh-Taylor instabilities surface expression crustal flow

Perspective on rare earth crystals

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Science China(Technological Sciences) 2020年第6期63卷 1085-1086页

作者： XUE DongFeng HU Jia Le LIANG XiTong wang huilin State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

Rare earth crystals represent our society utilization of rare earth resources via crystallization engineering *** earth crystals include more than 30 types of functional and structural crystals,with more than 30 kinds... 详细信息

关键词： Perspective crystals inorganic

催化剂排布状态对催化裂解反应影响的可视化研究

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石油炼制与化工 2025年第1期56卷 92-98页

作者：李泽坤王惠琳龚剑洪乔瑞琪中石化石油化工科学研究院有限公司北京100083 中国石化集团经济技术研究院有限公司

针对催化裂解提升管反应器内出现的催化剂颗粒团聚现象,建立了一套催化裂解原位微反应可视化研究系统,采用高温热台显微镜研究了不同反应温度、进料速率和催化剂粒径下,催化剂排布状态对异丁烯催化裂解反应产物分布的影响。研究结果表明... 详细信息

针对催化裂解提升管反应器内出现的催化剂颗粒团聚现象,建立了一套催化裂解原位微反应可视化研究系统,采用高温热台显微镜研究了不同反应温度、进料速率和催化剂粒径下,催化剂排布状态对异丁烯催化裂解反应产物分布的影响。研究结果表明:提高反应温度和进料速率可以削弱催化剂团聚对转化率的影响;催化剂粒径对催化裂解反应的影响与催化剂排布状态和分子筛类型有关,催化剂团聚会影响原料与催化剂的接触以及产物的扩散,从而对反应转化率和产物选择性产生影响。

关键词：催化裂解催化剂团聚反应转化率

Drying characteristics of biological porous media during convective drying

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International Journal of Agricultural and Biological Engineering 2016年第5期9卷 194-207页

作者： wang huilin Lu Tao Zhang Quanguo College of Energy and Power Engineering Zhengzhou University of Light IndustryZhengzhou 450002China School of Mechanical and Electrical Engineering Beijing University of Chemical TechnologyBeijing 100029China College of Mechanical and Electrical Engineering Henan Agricultural UniversityZhengzhou 450002China

Experiments with potatoes were carried out in order to analyze the variation of the temperature and the mean dry basis moisture content over time,the effect of the drying conditions on the drying rate,and the relationship between deformation and dry basis moisture content.A two-way sequentially coupled thermo-hydro-mechanical math model was developed on the basis of Fickian diffusion theory,Fourier’s law of heat conduction and thermoelasticity mechanics in order to analyze the spatio-temporal distributions of moisture,temperature and drying stresses in the *** transient mathematical model,composed of a system of partial differential equations,was solved by finite difference *** numerical results obtained by using the mathematical model were in good agreement with the experimental *** variations in temperature and moisture distributions,drying curves and stresses within potatoes over time were simulated,and the ways in which these are affected by the drying conditions were *** work could help in developing an understanding of the relationship between mass and heat transfer,shrinkage,stress,and physical degradation of biological materials.

关键词： heat and mass transfer deformable porous media THM coupling mathematical modeling

第29~33届奥运会羽毛球项目成绩变化特征及中国队成绩分析

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辽宁体育科技 2025年第1期47卷 63-68页

作者：刘多多曹盛民王慧琳东北大学体育部辽宁沈阳110819

运用文献资料法、数理统计法和比较分析法,对第29~33届奥运会羽毛球项目奖牌分布及中国羽毛球队的成绩进行研究,分析世界羽毛球竞技格局的变化趋势及中国队的竞技表现,为第34届洛杉矶奥运会的备战提供参考。结果表明:奖牌集中分布于亚... 详细信息

运用文献资料法、数理统计法和比较分析法,对第29~33届奥运会羽毛球项目奖牌分布及中国羽毛球队的成绩进行研究,分析世界羽毛球竞技格局的变化趋势及中国队的竞技表现,为第34届洛杉矶奥运会的备战提供参考。结果表明:奖牌集中分布于亚洲和欧洲,并且亚洲国家和地区持续统治奥运会羽毛球奖牌榜;中国羽毛球队在混双和女双等传统优势项目上保持了统治力,男单和女单项目则属于成长项目,男双项目表现相对薄弱,处于待突破阶段。中国羽毛球队在世界羽毛球格局中占据重要地位,但仍需加强后备人才的培养,特别是男双项目的提升;同时,中国队应加强与其他国家和地区的技战术交流,保持优势项目的稳定发挥,并重点提升成长和待突破项目。

关键词：奥运会羽毛球中国队成绩分析

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