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Chinese Chemical Letters 2008年第6期19卷 720-724页

作者： chun xi Zhai hai Ning Gu Da Yong Sang Juan Tian Qi Zhong Zhou Department of Chemistry Zhejiang University Hangzhou 310027 China

The deaggregating ability of β-CD and α-CD against the aggregated n-hexadecyl β-naphthoate （A16） and n-dodecyl β-naphthoate （A12） depended not only on the aggregating tendency of A16 and A12 but also on the initial concentration of the aggregated A16 or A12. The inclusive ability of β-CD with the substrates is greater than that of α-CD under hydrophobiclipophilic interaction.

关键词： Deaggregation Aggregation Coaggregation Critical aggregating concentration

Surface engineering of Li-and Mn-rich layered oxides for superior Li-ion battery

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Tungsten 2024年第1期6卷 259-268页

作者： Lu-xiang Ma Tian-Dong Chen chun-xi hai Sheng-De Dong xin He Qi Xu Hang Feng Axin Ji-Tao Chen Yuan Zhou College of Materials and Chemistry and Chemical Engineering Chengdu University of TechnologyChendu 610000China Qinghai Building and Materials Research Co. LtdXining 810000China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

The Li-and Mn-rich layered oxides(R-LNCM)are considered as promising cathode materials for high-energy density lithium-ion batteries(LIBs).However,the interface side reaction aggravates the voltage and capacity fading between cathode material and electrolyte at high voltage,which severely hinders the practical application of LIB ***,lithium polyacrylate(LiPAA)as the binder and coating agent is applied to suppress the voltage and capacity fading of R-LNCM *** flexible LiPAA layers with high elasticity are capable of impeding cathode cracks on the particle surface via mechanical stress ***,superior voltage and capacity fading suppression on R-LNCM electrode is finally *** a result,LiPAA-R-LNCM cathode exhibits a remarkable specific capacity of 186 mA·h·g^(-1)with~73%retention at 1℃after ***,the corresponding average discharge potential is maintained to~3.1 V with only~0.4 V falling.

关键词： LiPAA interphase layer Interface side reaction Cathode cracks Capacity and voltage fading suppression Liand Mn-rich cathode

Deciphering Water Oxidation Catalysts:The Dominant Role of Surface Chemistry over Reconstruction Degree in Activity Promotion

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Nano-Micro Letters 2025年第3期17卷 340-354页

作者： Li An Jianyi Li Yuanmiao Sun Jiamin Zhu Justin Zhu Yeow Seow Hong Zhang Nan Zhang Pinxian xi * Zhichuan JXu chun‑Hua Yan State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceFrontiers Science Center for Rare IsotopesCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000People’s Republic of China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Faculty of Materials Science and Energy Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China Key Laboratory of Electromagnetic Materials and Devices National Center for International Research On Photoelectric and Energy MaterialsSchool of Materials and EnergyElectron Microscopy CenterYunnan UniversityKunming 650091People’s Republic of China State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU‑HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing 100871People’s Republic of China

Water splitting hinges crucially on the availability of electrocatalysts for the oxygen evolution *** surface reconstruction has been widely observed in perovskite catalysts,and the reconstruction degree has been often correlated with the activity ***,a systematic study on the roles of Fe substitution in activation of perovskite LaNiO_(3)is *** substituting Fe content influences both current change tendency and surface reconstruction ***_(0.9)Fe_(0.1)O_(3)is found exhibiting a volcano-peak intrinsic activity in both pristine and reconstructed among all substituted perovskites in the LaNi_(1-x)Fe_(x)O_(3)(x=0.00,0.10,0.25,0.50,0.75,1.00)*** reconstructed LaNi_(0.9)Fe_(0.1)O_(3)shows a higher intrinsic activity than most reported NiFe-based ***,density functional theory calculations reveal that Fe substitution can lower the O 2p level,which thus stabilize lattice oxygen in LaNi0.9Fe0.1O3 and ensure its long-term ***,it is vital interesting that activity of the reconstructed catalysts relied more on the surface chemistry rather than the reconstruction *** effect of Fe on the degree of surface reconstruction of the perovskite is decoupled from that on its activity enhancement after surface *** finding showcases the importance to customize the surface chemistry of reconstructed catalysts for water oxidation.

关键词： Oxygen evolution reaction Perovskite oxides Doping Activation and reconstruction

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原卟啉钠治疗胆囊炎和胆结石100例

新药与临床 1989年第2期8卷 101-102页

作者：张存春蔡锡海上海市纺织工业局第一医院上海200060

原卟啉钠系从健康动物(牛、猪)血液中取得的水溶性钠盐。口服原卟啉钠(下称原卟啉组)20mg,tid,治疗100例胆道疾病,以≥3mo(月)为一个疗程。显效率39％,好转率52％,总有效率91％。与目前常用中成药金胆片(下称金胆组)70例作比较,总有效... 详细信息

原卟啉钠系从健康动物(牛、猪)血液中取得的水溶性钠盐。口服原卟啉钠(下称原卟啉组)20mg,tid,治疗100例胆道疾病,以≥3mo(月)为一个疗程。显效率39％,好转率52％,总有效率91％。与目前常用中成药金胆片(下称金胆组)70例作比较,总有效率80％。经统计学处理,两者相差不显著,但可与金胆片媲美。

关键词：原卟啉钠胆囊炎胆结石

Ni-catalyzed cross-electrophile alkyl-alkyl coupling reactions

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Science China Chemistry 2025年

作者： Li-Xu You Lan Tian chun-Ling Guo Shun-xi Li Yu-Cheng Liu Yu-Long Li Wei Shu College of Chemistry and Environmental Engineering Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan Sichuan University of Science and Engineering Guangming Advanced Research Institute Shenzhen Grubbs Institute Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology

Introducing saturated carbon-carbon bonds into organic molecules significantly increases the three-dimensional configuration,thus altering the physical and chemical properties as well as the functions of molecules. Transition-metal-catalyzed carboncarbon cross-couplings represent one of the most straightforward, efficient and modular alternatives to build saturation in a single step. However, the efficient construction of alkyl-alkyl bonds remains a formidable challenge due to the precise manipulation of multiple alkyl metallic intermediates as well as associated competitive side reactions and selectivity control. Over the past years, Ni-catalyzed cross-coupling under reductive conditions has gained more and more attention for alkyl-alkyl crosscoupling partially attributing to the low-valent state of metal centers under reducing conditions, which suppresses the competitive β-hydride elimination process, thus facilitating the formation of alkyl-alkyl bonds. In this review, the initiative and progress of Ni-catalyzed cross-electrophile alkyl-alkyl cross-coupling, including the efforts in racemic and enantioselective formation of alkyl-alkyl bonds, have been summarized and discussed. Moreover, the challenges and further opportunities in this area have also been discussed.

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基于加权快速聚类的异常数据挖掘算法

计算机工程与应用 2007年第35期43卷 153-155页

作者：李星毅包从剑施化吉奚春海北京交通大学电子信息学院北京100044 江苏大学计算机科学与通信工程学院江苏镇江212013 亭旁中学计算机中心浙江三门317103

聚类是数据挖掘领域中最活跃的研究分支之一,并在其他的科学领域也有广泛的应用。设计了基于加权快速聚类的异常数据挖掘算法,以便能快速发现异常数据。首先通过对数据的每个属性赋予一定权值,权值的大小要体现其对分类的贡献度,并根据... 详细信息

聚类是数据挖掘领域中最活跃的研究分支之一,并在其他的科学领域也有广泛的应用。设计了基于加权快速聚类的异常数据挖掘算法,以便能快速发现异常数据。首先通过对数据的每个属性赋予一定权值,权值的大小要体现其对分类的贡献度,并根据属性权值的特点,选择比较优良的初始分区,然后进行多次迭代,得到接近最优分区,接着运用一定规则,发现异常数据类,最后实践证明该技术取得很好的社会效果。

关键词：异常数据数据挖掘学习规则 K-均值聚类加权快速聚类

GC-MS法同时测定扎冲十三味丸中麝香酮和丁香酚含量

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中国民族医药杂志 2017年第1期23卷 46-48页

作者：韩春平席海山李江内蒙古民族大学化学化工学院内蒙古通辽028042 内蒙古民族大学分析测试中心内蒙古通辽028042

目的:建立GC-MS法同时测定蒙药扎冲-13中麝香酮和丁香酚的含量。方法:色谱柱为HP-5MS(30m×0.25mm×0.25μm);程序升温,初始温度50℃,以10℃min^(-1)升温至120℃,再以20℃·min^(-1)升温至250℃;汽化室温度为260℃;高纯度He气为载气;载... 详细信息

目的:建立GC-MS法同时测定蒙药扎冲-13中麝香酮和丁香酚的含量。方法:色谱柱为HP-5MS(30m×0.25mm×0.25μm);程序升温,初始温度50℃,以10℃min^(-1)升温至120℃,再以20℃·min^(-1)升温至250℃;汽化室温度为260℃;高纯度He气为载气;载气流速为2m L·min^(-1);进样量为1μL;分流比为20:1。结果:麝香酮标准曲线为Y=693570.6+1.43739×10~8×X(R=0.9993,N=5);丁香酚标准曲线为Y=1.65309×10~8+5.03683×10~8×X(R=0.9957,N=5);样品中丁香酚的平均含量为0.2325%、麝香酮的平均含量为0.0110%;RSD分别为1.2026%和0.6350%。结论:该方法简便、快速、准确,适用于蒙药中丁香酚、麝香酮的含量测定。

关键词： GC-MS法扎冲-13 丁香酚麝香酮含量

Microplastic and nanoplastic exposure and risk of diabetes mellitus

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World Journal of Clinical Cases 2025年第3期13卷 24-29页

作者： Hui-Yi Hsiao chung-Yi Nien Ruei-Feng Shiu Wei-chun Chin Tzung-hai Yen Department of Biomedical Sciences College of MedicineChang Gung UniversityTaoyuan 33302TaiwanChina Center for Tissue Engineering Chang Gung Memorial HospitalLinkouTaoyuan 33305TaiwanChina Department of Life Sciences National Central UniversityZhongli 320317TaoyuanTaiwanChina Center of Excellence for The Oceans Taiwan Ocean UniversityKeelung 20224TaiwanChina Institute of Marine Environment and Ecology Taiwan Ocean UniversityKeelung 20224TaiwanChina Department of Chemical and Materials Engineering University of California MercedMercedCA 95343United States Department of Nephrology Clinical Poison CenterChang Gung Memorial HospitalLinkou 33305TaoyuanTaiwanChina School of Traditional Chinese Medicine College of MedicineChang Gung UniversityTaoyuan 33302TaiwanChina

The issue of plastic pollutants has become a growing *** microplastics(MPs)(particle size<5 mm)and nanoplastics(NPs)(particle size<1μm)can cause DNA damage,cytotoxicity,and oxidative stress in various *** primary kno... 详细信息

The issue of plastic pollutants has become a growing *** microplastics(MPs)(particle sizexicity,and oxidative stress in various *** primary known impacts of microplastic/nanoplastic are observed in the liver and respiratory system,leading to hepatotoxicity and chronic obstructive pulmonary *** research on the effects of MPs and NPs on diabetes is still in its early stages,there are potential *** editorial highlights the risk to diabetics from co-exposure to contaminants and MPs/NPs,supported by evidence from animal studies and the various chemical compositions of MPs/NPs.

关键词： Microplastics Nanoplastics Plastic pollution,Diabetes mellitus Insulin resistance

A Novel Regeneration Method of Cu(0)-deposited TiO_2 Photocatalytic Film:Air-assisted Electrochemical Oxidation

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Chinese Chemical Letters 2002年第11期13卷 1127-1130页

作者： chun HE Ya xiONG xi hai ZHU School of Chemistry and Chemical Engineering Zhongshan UniversityGuangzhou 510275 Department of Chemistry Zhaoqing CollegeZhaoqing 526061

A rapid deactivation of TiO2 film was observed in the process of the photocatalytic degradation of formic acid in the presence of Cu(II) due to the deposition of Cu(0). A novel regeneration method, air-assisted electrooxidation, could efficiently retrieve the photocatalytic activity of the deact ivated film. HNO3 medium has a regeneration extent of 97.2% for first run, much higher than that of HCl and H2SO4 mediums.

关键词： Photocatalysis electrooxidation regeneration TiO2 formic acid copper.

Laser Light Scattering Study on Aggregation of Cellulose Diacetate in Acetone

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Chinese Journal of Chemical Physics 2014年第3期27卷 256-258页

作者： Ding-hai xie Xu-hua Li xi-ling Fang chun-feng Ma Technology Center China Tobacco Guangdong Industrial Co. Ltd. Guangzhou 510385 China Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510540 China

We have investigated the properties of cellulose diacetate in solution by using laser light scattering. The cellulose diacetate molecules can form micelles and micellar clusters in acetone besides the individual chains. As the concentration increases, the average hydrodynamic radius （Rh） linearly increases, whereas the ratio of gyration radius to hydrodynamic radins 〈Rg〉/〈Rh〉 linearly decreases. It indicates that the micelles associate and form micellar clusters due to the intermolecular interactions.

关键词： Cellulose diacetate Laser light scattering Multi-aggregation form structure