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High-silica faujasite zeolite-tailored metal encapsulation for the low-temperature production of pentanoic biofuels

Journal of Energy Chemistry 2024年第1期88卷 552-560,I0012页

作者： Wenhao Cui Yuanshuai Liu Pengfei Guo Zhijie Wu Liqun kang Huawei Geng Shengqi Chu Linying Wang Dong fan Zhenghao Jia Haifeng Qi Wenhao Luo Peng Tian Zhongmin Liu National Engineering Research Center of Lower-Carbon Catalysis Technology Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101ShandongChina College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021Inner MongoliaChina State Key Laboratory of Heavy Oil Processing and Key Laboratory of Catalysis of CNPC China University of PetroleumBeijing 102249China Department of Inorganic Spectroscopy Max Planck Institute for Chemical Energy ConversionMülheim an der Ruhr 45470Germany Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Division of Energy Research Resources Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Leibniz-Institut für Katalyse Albert-Einstein-Straβe 29aRostock 18059Germany

Zeolite-encapsulated metal nanoclusters are at the heart of bifunctional catalysts,which hold great potential for petrochemical conversion and the emerging sustainable ***,efficient encapsulation of metal nanoclusters into a high-silica zeolite Y in particular with good structural integrity still remains a significant ***,we have constructed Ru nanoclusters(~1 nm)encapsulated inside a high-silica zeolite Y(SY)with a SiO_(2)/Al_(2)O_(3) ratio(SAR)of 10 via a cooperative strategy for direct zeolite synthesis and a consecutive impregnation for metal *** with the benchmark Ru/H-USY and other analogues,the as-prepared Ru/H-SY markedly boosts the yields of pentanoic biofuels and stability in the direct hydrodeoxygenation of biomass-derived levulinate even at a mild temperature of 180℃,which are attributed to the notable stabilization of transition states by the enhanced acid accessibility and properly sized constraints of zeolite cavities owing to the good structural integrity.

关键词： High-silica zeolite Y Metal encapsulation Bifunctional catalysis Hydrodeoxygenation Biofuels

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The dynamic surface evolution of halide perovskites induced by external energy stimulation

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National Science Review 2024年第4期11卷 185-194页

作者： Feiyu Cheng Pengdong Wang Chenzhe Xu Qingliang Liao Suicai Zhang Haochun Sun Wenqiang fan Guodong Liu Zhiyun Li Yaping Kong Li Wang fangsen Li Zhuo kang Yue Zhang Academy for Advanced Interdisciplinary Science and Technology State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing Key Laboratory for Advanced Energy Materials and Technologies Key Laboratory of Advanced Materials and Devices for Post-Moore ChipsMinistry of EducationBeijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology Beijing Vacuum Interconnected Nanotech Workstation(Nano-X) Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of Sciences Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences

Tracking the dynamic surface evolution of metal halide perovskite is crucial for understanding the corresponding fundamental principles of photoelectric properties and intrinsic instability. However, due to the volatility elements and soft lattice nature of perovskites, several important dynamic behaviors remain unclear. Here, an ultra-high vacuum（UHV） interconnection system integrated by surface-sensitive probing techniques has been developed to investigate the freshly cleaved surface of CH3NH3PbBr3in situ under given energy stimulation. On this basis, the detailed three-step chemical decomposition pathway of perovskites has been clarified. Meanwhile, the evolution of crystal structure from cubic phase to tetragonal phase on the perovskite surface has been revealed under energy stimulation. Accompanied by chemical composition and crystal structure evolution, electronic structure changes including energy level position,hole effective mass, and Rashba splitting have also been accurately determined. These findings provide a clear perspective on the physical origin of optoelectronic properties and the decomposition mechanism of perovskites.

关键词： metal halide perovskite external energy stimulation surface dynamic evolution surface electronic structure ultra-high vacuum interconnection system

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Sulfonated carbon dots modified IrO_(2)nanosheet as durable and high-efficient electrocatalyst for boosting acidic oxygen evolution reaction

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Nano Research 2024年第9期17卷 8017-8024页

作者： Mengjie Ma Wenxiang Zhu fan Liao Kui Yin Hui Huang Kun Feng Dongdong Gao Jinxin Chen Zenan Li Jun Zhong Lai Xu Yang Liu Mingwang Shao Zhenhui kang Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering(MIMSE) Macao University of Science and TechnologyTaipaMacao 999078China

Oxygen evolution reaction(OER)plays a crucial role in developing energy conversion and adjusting electronic structure of the electrocatalysts can effectively improve the catalytic activity and ***,it is a challenge to adjust the electronic structure on two-dimensional iridium dioxide nanosheets(IrO_(2)NS),which have the advantages of high atom ***,we regulate the surface properties of IrO_(2)NS through sulfonated carbon dots(SCDs)to promote the OER catalytic *** catalyst IrO_(2)NS/SCDs-2 exhibited excellent catalytic activity with a lower overpotential of 180 mV than IrO_(2)NS(230 mV)at the current density of 10 mA·cm^(-2)in a 0.5 M H_(2)SO_(4) *** after 160 h of stability testing,the overpotential of IrO_(2)NS/SCDs-2 only decreased by 4 ***,transient potential scanning test can visually demonstrate that the addition of SCDs improves the conductivity of the catalyst and increases the electron transfer rate.

关键词： sulfonated carbon dots oxygen evolution reaction electrocatalysis transient potential scanning

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Medicinal chemistry strategies towards the development of non-covalent SARS-CoV-2 Mpro inhibitors

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Acta Pharmaceutica Sinica B 2024年第1期14卷 87-109页

作者： Letian Song Shenghua Gao Bing Ye Mianling Yang Yusen Cheng Dongwei kang fan Yi Jin-Peng Sun Luis Menéndez-Arias Johan Neyts Xinyong Liu Peng Zhan Department of Medicinal Chemistry Key Laboratory of Chemical Biology(Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinan 250012China Shenzhen Research Institute of Shandong University Shenzhen 518057China The Key Laboratory of Infection and Immunity of Shandong Province Department of PharmacologySchool of Basic Medical SciencesShandong UniversityJinan 250012China Key Laboratory Experimental Teratology of the Ministry of Education Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinan 250012China Centro de Biologı´a Molecular“Severo Ochoa”(Consejo Superior de Investigaciones Cientı´ficas&Autonomous University of Madrid) Madrid 28049Spain KU Leuven Department of Microbiology and ImmunologyRega Institute for Medical ResearchLaboratory of Virology and ChemotherapyLeuven 3000Belgium

The main protease(M^(pro))of SARS-CoV-2 is an attractive target in anti-COVID-19 therapy for its high conservation and major role in the virus life *** covalent M^(pro)inhibitor nirmatrelvir(in combination with ritonavir,a pharmacokinetic enhancer)and the non-covalent inhibitor ensitrelvir have shown efficacy in clinical trials and have been approved for therapeutic *** antiviral drugs are needed to fight the pandemic,while non-covalent M^(pro)inhibitors could be promising alternatives due to their high selectivity and favorable *** non-covalent M^(pro)inhibitors with desirable properties have been developed based on available crystal structures of M^(pro).In this article,we describe medicinal chemistry strategies applied for the discovery and optimization of non-covalent M^(pro)inhibitors,followed by a general overview and critical analysis of the available *** viewpoints and insights into current strategies for the development of non-covalent M^(pro)inhibitors are also discussed.

关键词： COVID-19 SARS-CoV-2 Main protease Non-covalent inhibitors Medicinal chemistry strategies

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Burden of gastrointestinal cancers among working-age population over past thirty years in China

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3955-3979页

作者： Yu Dong Zhuan-Zhuan fan Wen-Ting Li Jian kang Yan Zhang Yue Guan Hui-Qing Xu Jie Yuan Fei Xu Department of Gastroenterology Nanjing First HospitalNanjing Medical UniversityNanjing 210006Jiangsu ProvinceChina Department of Primary Healthcare Management Nanjing Municipal Center for Disease Control and PreventionNanjing 210003Jiangsu ProvinceChina Department of Emergency The First Affiliated Hospital with Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina Department of Epidemiology Nanjing Medical University School of Public HealthNanjing 211116Jiangsu ProvinceChina

BACKGROUND Although gastrointestinal(GI)cancers have been becoming a great public health concern in China,there is currently a lack of comprehensive literature on the overall burden and changing trends of GI cancers in the working-age *** To assess the burden of GI cancers and to examine the overall,age-and genderspecific trends among the working-age population in China from 1990 to *** Data were extracted from the Global Burden of Disease Study *** burden of GI cancers was indicated by incidence,mortality,disability-adjusted life-years(DALYs),age-standardized incidence rate(ASIR),age-standardized mortality rate,and age-standardized DALYs *** in the burden of GI cancers from 1990 to 2019 were examined using annual percent change and average annual percent change with Joinpoint regression *** For overall GI cancers,a declining trend was observed in the ASIR,age-standardized mortality rate,and agestandardized DALYs rate,with reductions of 0.74%,2.23%,and 2.22%,respectively,from 1999 to 2019 in the Chinese working-age ***,an increasing trend was observed in the ASIR for overall GI cancers from *** number of either incident cases,mortality cases,and DALYs was higher for colon/rectum cancer and liver cancer in younger participants but lower for esophageal,gallbladder,biliary tract,pancreatic,and stomach cancer among older ***,sex disparity in the GI cancers burden was also examined over 30 *** The total burden of GI cancers remained heavy among the working-age population in China,although declining trends were observed from 1999 to *** in the GI cancers burden existed between sexes,age groups,and cancer ***-based precision prevention strategies are needed to tackle GI cancers among working-age individuals,considering the age,sex,and cancer type disparities in China.

关键词： Gastrointestinal cancer Working-age population Disease burden Disability-adjusted life-years Chinese

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Functionalization design of zinc anode for advanced aqueous zinc-ion batteries

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SusMat 2024年第2期4卷 89-124页

作者： Ziyi Feng Yang Feng fangfang fan Dezhao Deng Han Dong Shude Liu Ling kang Seong Chan Jun Ling Wang Jing Zhu Lei Dai Zhangxing He School of Chemical Engineering North China University of Science and TechnologyTangshanChina State Key Laboratory of Advanced Chemical Power Sources College of ChemistryNankai UniversityTianjinChina Shanghai Frontiers Science Center of Advanced Textiles College of TextilesDonghua UniversityShanghaiChina Shanghai Key Laboratory of Multidimensional Information Processing East China Normal UniversityShanghaiChina School of Mechanical Engineering Yonsei UniversitySeoulSouth Korea

Rechargeable aqueous zinc-ion batteries(AZIBs)offer high energy density,low cost,and are environmentally friendly,rendering them potential energy storage ***,dendrite growth on the zinc anode and numerous side reac-tions during operation challenge their *** advancements have introduced various materials for the functionalization of zinc *** developments effectively mitigate the performance degradation of zinc anode,enhancing both its cycle stability and the overall performance of ***,the construction of functionalized zinc anodes is discussed,current materials(including organic,inorganic and their composites)for modified zinc anodes are categorized,and the protective mechanism behind functionalized zinc anodes is *** study concludes by outlining the characteristics of materials suitable for dendritic-free zinc anode construction and the prospects for future development directions of functionalized zinc anodes in AZIBs.

关键词： anode functionalization inorganic materials organic materials zinc-ion batteries

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Influence of muscle activation on lumbar injury under a specific+Gz load

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Chinese Journal of Traumatology 2024年第4期27卷 218-225页

作者： kang Lei Chen-Zhu Zhao fan Li Shu-Lin Liu Peng Yang State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan UniversityChangsha410082China Naval Medical Center The Secondary Military Medical UniversityShanghai200433China Department of Orthopedics Naval Medical Center of PLAShanghai200433China

Purpose:The present study aimed to analyze the influence of muscle activation on lumbar injury under aspecific+Gz ***:A hybrid finite element human body model with detailed lumbar anatomy and lumbar muscleactivation capabilities was *** the specific+Gz loading acceleration as input,the kinematicand biomechanical responses of the occupant's lower back were studied for both activated and deactivated states of the lumbar ***:The results indicated that activating the major lumbar muscles enhanced the stability of theoccupant's torso,which delayed the contact between the occupant's head and the *** activation led to higher strain and stress output in the lumbar spine under+Gz load,such as themaximum Von Mises stress of the vertebrae and intervertebral discs increased by 177.9%and 161.8%,respectively,and the damage response index increased by 84.5%.Conclusion:In both simulations,the occupant's risk of lumbar injury does not exceed 10%***,the activation of muscles could provide good protection for maintaining the lumbar spine andreduce the effect of acceleration in vehicle travel direction.

关键词： Lumbar muscles Finite element analysis Biomechanics +Gz load Injury mechanisms

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壳聚糖改性石墨相氮化碳/环氧树脂复合涂层的制备及防腐性能研究

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表面技术 2024年第12期53卷 102-113页

作者：杨康杨留洋范海明中国石油化工股份有限公司西北油田分公司乌鲁木齐830011 中国石油大学(华东)石油工程学院山东青岛266580

目的为了保证水性环氧树脂(EP)涂层的绿色、环保及高效防腐性能。通过将二维纳米材料石墨相氮化碳(g-C_(3)N_(4))与天然高分子壳聚糖(CS)功能化复合来制备一种新型绿色环氧树脂复合涂层体系,并研究不同g-C_(3)N_(4)@CS添加量对环氧树脂... 详细信息

目的为了保证水性环氧树脂(EP)涂层的绿色、环保及高效防腐性能。通过将二维纳米材料石墨相氮化碳(g-C_(3)N_(4))与天然高分子壳聚糖(CS)功能化复合来制备一种新型绿色环氧树脂复合涂层体系,并研究不同g-C_(3)N_(4)@CS添加量对环氧树脂复合涂层耐蚀性的影响。方法将尿素高温煅烧得到g-C_(3)N_(4),加入壳聚糖悬浮液中进行改性处理,并掺杂进环氧树脂中进而得到新型环氧树脂复合体系(EP/g-C_(3)N_(4)@CS)。利用傅里叶红外变换光谱仪(FT-IR)、X射线衍射仪(XRD)及透射电子显微镜(TEM)对g-C_(3)N_(4)和g-C_(3)N_(4)@CS复合材料的结构及微观形貌进行表征。并通过电化学手段及长周期浸泡实验对涂层体系的防腐性能进行测试。结合涂层附着力测试判断涂层与基体之间的黏合程度。结果g-C_(3)N_(4)@CS可以被成功复合到环氧树脂涂层中,且CS中丰富的含氧官能团显著提高了g-C_(3)N_(4)在环氧树脂中的分散性和界面相容性。涂层电化学耐蚀性测试结果表明,EP/g-C_(3)N_(4)@CS-1.0%(质量分数)涂层体系在浸泡30 d后的涂层电阻(R_(c))值最大,在浸泡30 d后仍能达到1.11×10^(7)Ω,EP/g-C_(3)N_(4)@CS-1.0%(质量分数)涂层体系耐蚀性最高。此外,g-C_(3)N_(4)@CS可显著提升EP涂层的附着力,且EP/g-C_(3)N_(4)@CS-1.0%(质量分数)涂层附着力最大。长期浸泡实验测试结果也表明,EP/g-C_(3)N_(4)@CS-1.0%(质量分数)涂层体系具有最佳的耐蚀性,在浸泡30 d后表面膜层仍较为均匀平整。结论EP/g-C_(3)N_(4)@CS-1.0%(质量分数)涂层体系形成的均匀完整复合膜可以有效屏蔽腐蚀性离子的迁移进程,具有最佳耐蚀性能。

关键词：石墨相氮化碳壳聚糖环氧树脂耐腐蚀性能涂层腐蚀电化学

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任务型党组织:地方跨界治理的整合机制——以H省N市全域党建的地方实践为例

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内蒙古社会科学 2024年第1期45卷 92-99页

作者：祁凡骅康媛璐中国人民大学公共管理学院北京100872 内蒙古党校(行政学院)公共管理教研部内蒙古呼和浩特010070

作为治理跨界事务的创新载体,任务型党组织旨在通过党的跨域建设来强化权威整合,前提是跨域吸纳,目标是有效行动。既不同于西方“政治—行政”二分和韦伯的科层制理论,也不同于议事协调小组、领导小组等“高位推动”的运作机制,任务型... 详细信息

作为治理跨界事务的创新载体,任务型党组织旨在通过党的跨域建设来强化权威整合,前提是跨域吸纳,目标是有效行动。既不同于西方“政治—行政”二分和韦伯的科层制理论,也不同于议事协调小组、领导小组等“高位推动”的运作机制,任务型党组织既强调党组织的全域覆盖,又强调党建工作内容的全覆盖,形成组织嵌入机制、合作网络机制、融合党建机制和任务认领机制四种跨界事务治理的整合机制。地方实践对这一组织模式进行了丰富探索,旨在克服体制性壁垒,打破“碎片化”效应;克服物理性壁垒,打破“边际化”效应。结合地方实践,提出“组织吸纳—权威整合—主体行动”的分析框架:通过吸纳性制度构建实现跨界吸纳,提升组织的吸纳力;通过跨域党建实现跨界整合,提升权威的整合力;通过激励赋能实现跨界协同,提升主体的行动力。

关键词：跨界治理全域党建任务型党组织

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A compact multi-pixel superconducting nanowire single-photon detector array supporting gigabit space-to-ground communications

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Light(Science & Applications) 2024年第2期13卷 254-266页

作者： Hao Hao Qing-Yuan Zhao Yang-Hui Huang Jie Deng fan Yang Sai-Ying Ru Zhen Liu Chao Wan Hao Liu Zhi-Jian Li Hua-Bing Wang Xue-Cou Tu La-Bao Zhang Xiao-Qing Jia Xing-Long Wu Jian Chen Lin kang Pei-Heng Wu Research Institute of Superconductor Electronics(RISE) School of Electronic Science and EngineeringNanjing UniversityNanjingJiangsu 210023China Purple Mountain Laboratories NanjingJiangsu 211111China Hefei National Laboratory HefeiAnhui 230088China National Laboratory of Solid State Microstructures and Department of Physics Nanjing UniversityNanjing 210023China

Classical and quantum space-to-ground communications necessitate highly sensitive receivers capable of extracting information from modulated photons to extend the communication distance from near-earth orbits to deep space *** achieve gigabit data rates while mitigating strong background noise photons and beam drift in a highly attenuated free-space channel,a comprehensive design of a multi-functional detector is *** this study,we present an innovative compact multi-pixel superconducting nanowire single-photon detector array that integrates near-unity detection efficiency(91.6%),high photon counting rate(1.61 Gcps),large dynamic range for resolving different photon numbers(1-24),and four-quadrant position sensing function all within one ***,we have constructed a communication testbed to validate the advantages offered by such an *** 8-PPM(pulse position modulation)format communication experiments,we have achieved an impressive maximum data rate of 1.5 Gbps,demonstrating sensitivities surpassing previous benchmarks at respective *** incorporating photon number information into error correction codes,the receiver can tolerate maximum background noise levels equivalent to 0.8 photons/slot at a data rate of 120 Mbps—showcasing a great potential for daylight operation ***,preliminary beam tracking tests were conducted through open-loop scanning techniques,which revealed clear quantitative dependence indicating sensitivity variations based on beam *** on the device characterizations and communication results,we anticipate that this device architecture,along with its corresponding signal processing and coding techniques,will be applicable in future space-to-ground communication tasks.

关键词： photon supporting correction

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