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Interfacial regulation induced rate capability and cycling stability of poly(perylene diimide)organic electrode

Materials Reports(Energy) 2025年第1期5卷 53-60页

作者： Xijie Fu Xinxin Liu Yue Sun Xiangming Feng Cuiping Li Zi-Feng Ma Jinyun Zheng Weihua Chen College of Chemistry Zhengzhou UniversityZhengzhou450001China Shaoxing research institute of Renewable Energy and Molecular Engineering Shanghai Jiao Tong UniversityShaoxing312000China

Organic electrodes are considered competitive candidates for the next-generation high-performance energy storage devices owing to their advantages of structural flexibility and abundant ***,solubility and low electronic conductivity have been major obstacles to the practical *** address these challenges,the structural design and interfacial regulation of organic electrodes are crucial to the performance ***,we report on aπ-conjugated polymer cathode material of poly(3,4,9,10-perylenetetracarboxylic diimide)(PPI)for metal ion batteries,and the performance optimization is achieved by matching suitable conductive carbons and liquid ***,the carbon nanotubes(CNTs)with weight content of 25%and 1 M NaPF6 in ethylene carbonate/diethyl carbonate electrolyte are introduced to assemble the batteries,and the discharge specific capacity,cycling stability and rate performance are enhanced *** PPI-CNTjjNa battery displays high specific capacities of 146.4 and 117 mAh g^(-1) at current densities of 0.1 C and 5 C,***,PPI-CNTjjNa battery demonstrates excellent long-term cycling stability of 5000 cycles with low 0.007 mAh g^(-1)capacity decay per cycle at 1C due to the thin and uniform cathode electrolyte ***,the PPI-CNTjjNa battery presents good cycling stability at high temperatures of 60℃,and retains a capacity of 132.5 mAh g^(-1) after 300 cycles with a high capacity retention rate of 96.9%.Besides,PPI-CNT displays good electrochemical performance and compatibility in lithium-ion and potassium-ion *** work provides an alternative optimization strategy for organic electrodes applied in long-lifetime metal ion batteries.

关键词： Organic cathode material Poly(3,4,9,10-perylenetetracarboxylic diimide) Performance optimization Interfacial regulation Metal ion batteries

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Experimental Study on Improving Seismic Behavior of Load-Bearing Masonry Wall Made of Autoclaved Aerated Concrete

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Transactions of Tianjin University 2013年第6期19卷 419-424页

作者：于敬海曹建锋费添慧 architectural design and research institute of Tianjin University School of Civil Engineering Tianjin University

To investigate the seismic behavior of autoclaved aerated concrete load-bearing masonry wall(AACLMW), a piece of control block wall without constructional measures and five pieces of block walls with different constructional measures were tested under low reversed cyclic loading which imitated low to moderate earthquake force. The seismic behavior of AACLMW with different constructional measures in terms of failure mode, hysteretic curve, deformation capacity and displacement ductility was studied and compared with that without constructional measures. The experimental results indicate that the constructional measures comprising constructional columns and horizontal concrete strips are effective for improving the seismic behavior of AACLMW. The study in this paper can provide a reliable experimental basis for further analysis and engineering application of AACLMW in the future.

关键词： autoclaved aerated concrete(AAC) load-bearing masonry wall(LMW) seismic behavior constructional column concrete strip

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Stable copper boron–imidazolate cage as Cu-riched enzyme for highly efficient electrocatalytic CO2 reduction to ethylene

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Science China Chemistry 2025年第3期 943-950页

作者： Jun-Qiang Chen Qiao-Hong Li Qin-Long Hong Ping Shao Hai-Xia Zhang Jian Zhang State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences

Single-atom catalyst has garnered widespread attention to mimic mature enzymes due to its well-defined atomic structure and coordination ***,since the carbon–carbon（C–C） coupling reactions require synergistic catalysis of multiple sites,single-atom catalysts suffer from insufficient active sites and unclear reaction *** the reaction intermediates in a precisely targeted pocket through careful metal–organic cage design is therefore ***,we prepare a tetrahedral [Cu6L4]-type boron–imidazolate cage integrating highly active Cu sites and optimized cavity,which exhibits enzyme like specific catalytic performance in electrochemical CO2reduction reaction（CO2RR） to enhance the selectivity of *** analyses and computational calculations suggest that the single Cu site together with neighboring boron–imidazolate ligands provides suitably synergistic effects that enable the energetically favorable formation of an*COCHO intermediate,a key step determining *** a result,the [Cu6L4]-type cage of BIC-145 achieves a Faradaic efficiency of 28% for C2H4maintaining an average current density of -3.54 m A cm-2over a 5-hour electrolysis *** work represents the first example for studying single-metal site catalysts with ultra-low coordination numbers through the rational design of metal–organic cages.

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TavWA1 is critical for wheat growth by modulating cell morphology and arrangement

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Journal of Integrative Plant Biology 2025年第1期67卷 71-86页

作者： Guowei Chang Yue Li Lei Peng Chuncai Shen Yipeng Lu Wan Teng Yangyang Liu Yingchun Wang Weiqi Zhu Cuimin Liu Xue He Yiping Tong Xueqiang Zhao Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Plant Molecular Physiology Institute of BotanyChinese Academy of SciencesBeijing 100093China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Zhaoxian Experiment Station Shijiazhuang Academy of Agricultural and Forestry SciencesZhaoxian 515300China

Plant growth is determined by the production of cells and initiation of new *** genes that control cell number and cell size is of great significance for understanding plant growth *** this study,we characterized two wheat mutants,ah and dl,with abnormal *** ah mutant is a naturally occurring variant characterized by severe dwarfism,increased tiller number,and reduced grain length,while the dl mutant is derived from an ethyl methane sulfonate(EMS)-mutagenized population and exhibits smaller grain size and slightly reduced plant *** analyses revealed abnormal cell number,cell morphology and arrangement in the stems and leaves of the ah mutant,along with reduced cell length in the grains of the dl ***-based cloning identified that both mutants carry mutations in the same gene TavWA1-7D,which encodes a protein with a von Willebrand factor A(vWA)*** ah mutant harbors a 174-bp insertion in the 1,402-bp coding sequence(CDS)of TavWA1-7D,causing premature termination of protein translation,while the dl mutant contains a Glu420Lys *** the TavWA1-7D ahthrough clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated nuclease 9-mediated genome editing leads to a severe dwarfism *** C-terminus of the protein is crucial for its correct subcellular localization and interaction,supporting its critical role for TavWA1-7D *** analysis showed that the dwarf phenotype of the ah mutant is associated with impaired photosynthesis,ribosome function,and nucleosome ***,TavWA1-7D interacts with an E3 ligase,Ta VIP1-3B,the expression levels of which are elevated in both *** and knockout studies of TaVIP1-3B demonstrated its negative regulatory role in cell length and grain ***,our findings suggest that TavWA1-7D plays a vital role in regulating wheat growth and yield-related traits,with the dl mutant's short grain phen

关键词： grain size severe dwarf TaVIP1 TavWA1 wheat

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Impact of Land Use Change on Ecosystem Services Values in Danjiangkou Reservoir Area,China in the Context of National Water Network Project Construction

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Chinese Geographical Science 2025年第1期35卷 111-130页

作者： LIU Linghua ZHENG Liang WANG Ying LIU Chongchong ZHANG Bowen BI Yuzhe School of Public Administration China University of GeosciencesWuhan 430074China The Key Laboratory of Rule of Law research Ministry of Natural ResourcesWuhan 430074China Changjiang institute of Survey PlanningDesignand Research Co.Ltd.Wuhan 430014China The Key Laboratory of Changjiang Regulation and Protection of Ministry of Water Resources Wuhan 430074China Key Laboratory of Water Grid Project and Regulation of Ministry of Water Resources Wuhan 430014China School of Resource and Environmental Science Wuhan UniversityWuhan 430079China

Investigating the ecological impact of land use change in the context of the construction of national water network project is crucial,as it is imperative for achieving the sustainable development goals of the national water network and guaranteeing regional ecological *** the Danjiangkou Reservoir Area(DRA),China as the study area,this paper first examined the spatiotemporal dynamics of natural landscape patterns and ecosystem service values(ESV)in the DRA from 2000 to 2018 and then investigated the spatial clustering characteristics of the ESV using spatial statistical analysis ***,the patch-generating land use simulation(PLUS)model was used to simulate the natural landscape and future changes in the ESV of the DRA from 2018 to 2028 under four different development scenarios:business as usual(BAU),economic development(ED),ecological protection(EP),and shoreline protection(SP).The results show that:during 2000-2018,the construction of water facilities had a significant impact on regional land use/land cover(LULC)change,with a 24830 ha increase in watershed *** exhibited an increasing trend,with a significant and growing spatial clustering *** transformation of farmland to water bodies led to accelerated ESV growth,while the transformation of forest land to farmland led to a decrease in the *** difference vegetation index(NDVI)had the strongest effect on the *** exhibited a continuous increase from 2018 to 2028 under all the simulation *** EP scenario had the greatest increase in ESV,while the ED scenario had the smallest *** findings suggest that projected land use patterns under different scenarios have varied impacts on ecosystem services(ESs)and that the management and planning of the DRA should balance social,economic,ecological,and security ***,ecological,and security benefits.

关键词： ecosystem services value(ESV) national water network project of China South-to-North Water Diversion Project(SNWDP)of China multi-scenario simulation Danjiangkou Reservoir Area,China

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Frog tongue-inspired wettable microfibers for particles capture

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Science Bulletin 2025年第3期70卷 383-389页

作者： Jiahui Guo Lingyu Sun Han Zhang Yuanjin Zhao Department of Rheumatology and Immunology Nanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Shenzhen research institute Southeast UniversityShenzhen 518071China Chemistry and Biomedicine Innovation Center ChemBioMed Interdisciplinary Research CenterNanjing UniversityNanjing 210023China

Fibers have been of great significance in our daily lives,especially in the industrial production of *** in this area has been focused on developing microfibers with superior functions to enhance the filtration performances of the ***,inspired by the frog’s predation mechanism using its tongues to swiftly grab flying insects,we propose novel porous wettable microfibers from microfluidics to efficiently capture particles in the air for *** pre-dispersing LP emulsions into polyurethane(PU),porous microfibers dispersed with oil droplets could be continuously spun from a co-flow microfluidic device based on the quick phase inversion of *** design an optimal system with frog-tongue-like interfacial adhesion properties,the wettability performances of the porous microfibers are investigated under full,partial,and no oil coverage *** implemented in a mask,the 3D patterned networks based on the frog-tongue-inspired microfibers have been proven with remarkable particle capture performances while maintaining good air *** on these features,we believe that frog-tongue-inspired microfibers and their derived masks are of practical significance in multiple applications.

关键词： Bioinspired Microfluidics Microfiber Wettability Mask

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Development of ESIPT-based specific fluorescent probes for bioactive species based on the protection-deprotection of the hydroxyl

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Chinese Chemical Letters 2025年第2期36卷 49-56页

作者： Haixian Ren Yuting Du Xiaojing Yang Fangjun Huo Le Zhang Caixia Yin Department of Chemistry Xinzhou Normal University research institute of Applied Chemistry Shanxi University Department of Chemistry The University of Texas at Austin Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province Institute of Molecular ScienceShanxi University

Excited-state intramolecular proton-transfer (ESIPT) based fluorescence probes are particularly attractive due to their unique properties including environmental sensitivity, a large Stokes shift, and potential for ratiometric sensing. In general, ESIPT-based fluorophore incorporates an intramolecular hydrogen bonding interaction between a hydrogen bond donor (–OH and NH2are common) and a hydrogen bond acceptor(C=N and C=O). More, protection–deprotection of hydroxyl group as hydrogen bond donor could induce an off-on switch of ESIPT-based emission. Therefore, protection–deprotection of hydroxyl group has been the widely used strategy to design fluorescent probes, where the potential key issue is selecting a protective group that can specifically leave in the presence of the target analyte. In this review, we mainly summarize the specific protecting groups (sites) and deprotection mechanisms for biologically important species (including reactive sulfur species (RSS), reactive oxygen species (ROS), enzymes, etc.), and analyze the advantages and disadvantages of different protection mechanisms from some aspects including probe stability, selectivity, response rate and assay system, etc. Based on the aforementioned, we further point out the current challenges and the potential future direction for developing ESIPT-based probes.

关键词： Bioimaging ESIPT Fluorescence probe Protection-deprotection Specificity

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Deep-sea oil and gas plow-type cable broadband wide-azimuth 3D seismic acquisition and imaging

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Science China Earth Sciences 2025年第3期68卷 683-701页

作者： Yunfei YE Li-Yun FU Lijun MI Chuncai CHEN Zhenhua JIAO Hanming GU Yu WU China National Offshore Oil Corporation research institute Co. Ltd. National Key Laboratory of Deep Oil and Gas China University of Petroleum (East China) China Oilfield Services Limited School of Geophysics and Space Information China University of Geosciences (Wuhan) Sinopec Geophysical research institute Co. Ltd.

In recent years, significant advancements have been made in deep-sea broadband seismic acquisition and its support data processing technologies. Compared with traditional constant-depth flat-cable acquisition, variable-depth cable acquisition significantly differentiates frequency notches and enhances information complementarity between traces, effectively broadening the frequency band of acquired seismic data. Based on the international slanted cable technology, China has independently developed a plow-type cable seismic acquisition and imaging system: a combination of slanted and deep-deployed flat cables,along with a deghosting processing technique. This innovation optimizes the segmented depth variation of cables, further improving low-frequency response and broadening the high-frequency range. This paper extends the 2D technology into three dimensions, establishing an integrated technology system for deep-sea broadband, wide-azimuth seismic acquisition and imaging, consisting of three-ship and six-source acquisition equipments, 3D plow-type cable mat, blended acquisition design with rolling dual-random sources, and wavenumber-domain 3D deghosting techniques. Applications to two tectonic zones in the South China Sea demonstrate that the frequency band of seismic data is expanded from three octaves(8–85 Hz) by conventional acquisition and imaging methods to five octaves(2–130 Hz), significantly improving the data quality and imaging precision of deep structures. This advancement effectively supports the researches of fundamental geology, hydrocarbon accumulation,reservoir prediction, and fluid identification in deep-water basins. The successful deployment of these technologies has advanced China's deep-sea oil and gas exploration and has been generalized to more than ten international deep-sea oilfields.

关键词： Deep-sea oil and gas Broadband wide-azimuth 3D plow-type cable deployment Three-ship six-source blended acquisition Deghosting

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湖南大学学报（自然科学版） 2009年第S1期36卷 60-65页

作者： LV Chao1,JIANG Yun-tao2,ZHAO Jia-ning1(1.School of Municipal & Environmental Engineering,Harbin institute of Technology,Harbin,Heilongjiang 150090,China 2.the architectural design and research institute,Harbin institute of Technology,Harbin,Heilongjiang 150090,China) School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China architectural design and research institute Harbin Institute of Technology Harbin 150090 China

From the view of both objective and subjective factors,the indoor air quality(IAQ)evaluation was *** dioxide(CO2)and formaldehyde(HCHO)were selected as the typical contaminants of indoor air,and the evaluation method of logarithmic index was adopted as the evaluation means of *** the recommended limits(RL)of typical contaminants CO2 and HCHO were given through analysis and *** limits of CO2 and HCHO in Indoor Air Quality Standard of China or other existing standards probably correspond to the level of PD=25(%).The result shows that the existing standards fail to meet the requirement of the definition of "acceptable indoor air quality",that is to say,less than 20% of the people express *** PD=20%,RL of CO2 and HCHO are 728×10-6 and 0.068×10-6 respectively,which are stricter than the limits in the existing *** method proposed in this paper is applicable to 13.1%≤PD≤86.7%.

关键词： indoor air quality(IAQ) typical contaminants recommended limits(RL) evaluation method of logarithmic index percentage of dissatisfaction(PD)

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Landscape design method for a green community based on green building design theory

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第9期11卷 691-700页

作者： Hong-feng GUO Jian GE Miao YUE Xiao ZHOU Wu JIN architectural design and research institute Zhejiang University Hangzhou 310027 China Department of Architecture Zhejiang University Hangzhou 310058 China

Landscape design for a green community should be favorable for the ambient ecological environment and for enhancement of both the local climate of a residential area and the environmental quality of life. This paper presents optimization methods for plant landscape design that take account of results of comparisons of noise reduction effects, heat island temperature decreases and effects on ventilation. These methods are based on different plant configurations and various luminous environments, such as exterior sunshine and shaded areas after the simulation of exterior luminous, acoustic and thermal environments of a residential area using the analytic software ECOTECT, CADNA/A, and PHEONICS. Three different types of residential buildings are simulated including a faculty apartment in the Xixi Campus of Zhejiang University, the Huaqing Villa and the Gangwan Jiayuan faculty apartment of Zhejiang University, China, based on green building design theory. In addition, the methods and process flow of landscape design of green residential areas are also described for the improvement of the exterior physical living environment.

关键词： Landscape design Green community Green building Exterior physical environment

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