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Manipulating Na occupation and constructing protective film of P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2) as long-term cycle stability cathode for sodium-ion batteries

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Journal of Energy Chemistry 2024年第1期88卷 603-611,I0013页

作者： Yiran Sun Pengfei Zhou Siyu Liu Zhongjun zhao Yihao Pan Xiangyan Shen Xiaozhong Wu jinping zhao Junying Weng Jin Zhou School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 0255000ShandongChina School of Materials Science and Engineering Shandong University of TechnologyZibo 255049ShandongChina

P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2)(NNMO)is promising cathode material for sodium-ion batteries(SIBs)due to its high specific capacity and fast Na+diffusion rate.Nonetheless,the irreversible P2-O_(2)phase transformation,Na+/vacancy ordering,and transition metal(TM)dissolution seriously damage its cycling stability and restrict its commercialization process.Herein,Na occupation manipulation and interface stabilization are proposed to strengthen the phase structure of NNMO by synergistic Zn/Ti co-doping and introducing lithium difluorophosp(LiPO_(2)F_(2))film-forming electrolyte additive.The Zn/Ti co-doping regulates the occupancy ratio of Nae/Nafat Na sites and disorganizes the Na+/vacancy ordering,resulting in a faster Na+diffusion kinetics and reversible P2-Z phase transition for P2-Na_(0.67)Ni_(0.28)Zn_(0.05)Mn_(0.62)Ti_(0.05)O_(2)(NNZMTO).Meanwhile,the LiPO_(2)F_(2)additive can form homogeneous and ultrathin cathode-electrolyte interphase(CEI)on NNZMTO surface,which can stabilize the NNZMTO-electrolyte interface to prevent TM dissolution,surface structure transformation,and micro-crack generation.Combination studies of in situ and ex situ characterizations and theoretical calculations were used to elucidate the storage mechanism of NNZMTO with Li PO_(2)F_(2)additive.As a result,the NNZMTO displays outstanding capacity retention of 94.44%after 500 cycles at 1C with 0.3 wt%Li PO_(2)F_(2),excellent rate performance of 92.5 mA h g^(-1)at 8C with 0.1 wt%Li PO_(2)F_(2),and remarkable full cell capability.This work highlights the important role of manipulating Na occupation and constructing protective film in the design of layered materials,which provides a promising direction for developing high-performance cathodes for SIBs.

关键词： Layered cathode Zn/Ti co-doping Na occupation Electrolyte additive Sodium-ion batteries

Indices of Congested Areas and Contributions of Customers to Congestions in Radial Distribution Networks

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Journal of Modern Power Systems and Clean Energy 2022年第3期10卷 656-666页

作者： jinping zhao Ali Arefi Alberto Borghetti Gerard Ledwich College of Science HealthEngineeringand EducationMurdoch UniversityWA6150Australia Department of Electrical Electronicand Information EngineeringUniversity of BolognaBologna40126Italy School of Electrical Engineering and Robotics Queensland University of TechnologyBrisbaneQLD 4000Australia

Congestions are becoming a significant issue with an increasing number of occurrences in distribution networks due to the growing penetration of distributed generation and the expected development of electric mobility.Fair congestion management(CM)policies and prices require proper indices of congested areas and contributions of customer to congestions.This paper presents spatial and temporal indices for rapidly recognizing the seriousness of congestions from the perspectives of both magnitude violation and duration to prioritize the affected areas where CM procedures should be primarily activated.Besides,indices are presented which describe the contributions of customers to the congestions.Simulation tests on IEEE 123-bus and Australian 23-bus low-voltage distribution test feeders illustrate the calculation and capabilities of the proposed indices in balanced and unbalanced systems.

关键词： Congestion management spatial index temporal index distribution network contribution of customer

Current status of cognition and skin care behavior in adolescent patients with acne:A survey in China

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Chinese Medical Journal 2024年第4期137卷 476-477页

作者： Jing Tian Hong Shu Qiufang Qian Zhong Shen Chunyu zhao Li Song Ping Li Xiuping Han Hua Qian jinping Chen Hua Wang Lin Ma Yuan Liang Department of Dermatology Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijing 100045China Department of Dermatology Kunming Children’s HospitalKunmingYunnan 650034China Department of Dermatology Children’s Hospital of ShanghaiChildren’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China Loreal China Co. LtdShanghai 200040China Department of Dermatology Henan Children’s HospitalChildren’s Hospital Affiliated to Zhengzhou UniversityZhengzhou Hospital Beijing Children’s HospitalZhengzhou Children’s HospitalZhengzhouHenan 450052China Department of Dermatology Shenzhen Children’s HospitalShenzhenGuangdong 518026China Department of Dermatology Shengjing Hospital of China Medical UniversityShenyangLiaoning 110004China Department of Dermatology Children’s Hospital of Soochow UniversitySuzhouJiangsu 215025China Department of Dermatology Guangzhou Women and Children's Medical CenterGuangzhouGuangdong 510623China Department of Dermatology Children’s Hospital of Chongqing Medical UniversityChongqing 400014China

To the Editor:Acne vulgaris(AV)is a common inflammatory skin condition.Population-based epidemiological studies have reported associations between dietary habits,lifestyle factors,family history,and the occurrence and development of acne.^([1–4])This study investigated the skincare behavior and cognition of patients with AV regarding predisposing factors using a designed electronic questionnaire.

关键词： patients dietary behavior

Export of Greenland Sea water across the Mohn Ridge induced by summer storms

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Acta Oceanologica Sinica 2023年第2期42卷 17-28页

作者： Xusiyang Shen jinping zhao Xiaoyu Wang Tore Hattermann Wenqi Shi Long Lin Ping Chen Physical Oceanography Laboratory Ministry of EducationQingdao266100China College of Oceanic and Atmospheric Sciences Ocean University of ChinaQingdao266100China Norwegian Polar Institute Tromsø9296Norway National Marine Environmental Monitoring Center Ministry of Ecology and Environment of the People’s Republic of ChinaDalian116023China Key Laboratory of Polar Science Ministry of Natural ResourcesShanghai200129China Institute of Oceanographic Instrumentation Qilu University of TechnologyJinan250306China

The Mohn Ridge separates the Greenland Sea and the Lofoten Basin.Previous studies identified the export across the Mohn Ridge(EMR)from the Greenland Basin into the Lofoten Basin using water mass analysis and the tracer diffusion method,but there is still lack of direct current measurements.A surface mooring with four current meters was deployed on the Mohn Ridge from June 5 to June 18 in 2015,when three cyclones passed in the adjacent area.In the absence of cyclones,the flow on the Mohn Ridge was northeastward,parallel to the ridge.When cyclones appeared,the EMR occurred to transport Greenland Sea water into the Lofoten Basin.The probable mechanism is the sea level height variation caused by the perturbation of the low pressure of cyclones,which yields an outward pressure gradient force to drive the outflow.Our results suggest that the outflow is intermittent and only happens during cyclone activities.The annual mean volume flux of EMR was roughly estimated by the limited data,which is about 3.8×10^(6)m^(3)/s,a little bit smaller than the estimation based on volume conservation.The results indicate that the contribution of the cyclonic storms to EMR is a greatly important mechanism that potentially influences the global thermohaline circulation through the Greenland-Scotland Ridge overflow.

关键词： Mohn Ridge current measurement cyclone

Insights into the enhanced structure stability and electrochemical performance of Ti^(4+)/F^(-) co-doped P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2) cathodes for sodium ion batteries at high voltage

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Journal of Energy Chemistry 2022年第4期31卷 655-662页

作者： Pengfei Zhou Jing Zhang Zhennan Che Zuhao Quan Ju Duan Xiaozhong Wu Junying Weng jinping zhao Jin Zhou School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255049ShandongChina School of Materials Science and Engineering Shandong University of TechnologyZibo 255049ShandongChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

P2-Na_(0.67)N_(i0.33)Mn_(0.67)O_(2)is considered as a promising cathode material for sodium-ion battery (SIBs)because of its high capacity and discharge potential.However,its practical use is limited by Na^(+)/vacancy ordering and P2-O2 phase transition.Herein,a Ti^(4+)/F^(-) co-doping strategy is developed to address these issues.The optimal P2-Na_(0.67)Ni_(0.33)Mn_(0.37)Ti_(0.3)O_(1.9)F_(0.1) exhibits much enhanced sodium storage performance in the high voltage range of 2.0–4.4 V,including a cycling stability of 77.2%over 300cycles at a rate of 2 C and a high-rate capability of 87.7 m Ah g^(-1) at 6 C.Moreover,the P2-Na_(0.67)Ni_(0.33)Mn_(0.37)Ti_(0.3)O_(1.9)F_(0.1) delivers reversible capacities of 82.7 and 128.1 m Ah g^(-1) at-10 and 50℃ at a rate of 2 C,respectively.The capacity retentions over 200 cycles at-10℃ is 94.2%,implying more opportunity for practical application.In-situ X-ray diffraction analysis reveals that both P2-O2 phase transitions and Na^(+)/vacancy ordering is suppressed by Ti^(4+)/F^(-) co-doping,which resulting in fast Na^(+) diffusion and stable phase structure.The hard carbon//P2-Na_(0.67)Ni_(0.33)Mn_(0.37)Ti_(0.3)O_(1.9)F_(0.1) full cell exhibits a high energy density of 310.2 Wh kg^(-1) and remarkable cyclability with 82.1%retention after 300 cycles at 1 C in the voltage range of 1.5–4.2 V.These results demonstrate that the co-doping Ti^(4+)/F^(-) is a promising strategy to improve the electrochemical properties of P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2),providing a facile tactic to develop high performance cathode materials for SIBs.

关键词： P2-Na_(0.67)N_(i0.33)Mn_(0.67)O_(2) Ti^(4+)/F^(-)co-doping Phase transition Na^(+)/vacancy ordering Sodium-ion batteries

Porous framework materials for energy&environment relevant applications:A systematic review

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Green Energy & Environment 2024年第2期9卷 217-310页

作者： Yutao Liu Liyu Chen Lifeng Yang Tianhao Lan Hui Wang Chenghong Hu Xue Han Qixing Liu Jianfa Chen Zeming Feng Xili Cui Qianrong Fang Hailong Wang Libo Li Yingwei Li Huabin Xing Sihai Yang Dan zhao jinping Li College of Chemical Engineering and Technology Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of TechnologyTaiyuan030024China School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou510640China Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China Department of Chemistry The University of ManchesterManchesterM139PLUK Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou311215China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin UniversityChangchun130012China Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of ChemistryUniversity of Science and Technology BeijingBeijing100083China

Carbon peaking and carbon neutralization trigger a technical revolution in energy&environment related fields.Development of new technologies for green energy production and storage,industrial energy saving and efficiency reinforcement,carbon capture,and pollutant gas treatment is in highly imperious demand.The emerging porous framework materials such as metal–organic frameworks(MOFs),covalent organic frameworks(COFs)and hydrogen-bonded organic frameworks(HOFs),owing to the permanent porosity,tremendous specific surface area,designable structure and customizable functionality,have shown great potential in major energy-consuming industrial processes,including sustainable energy gas catalytic conversion,energy-efficient industrial gas separation and storage.Herein,this manuscript presents a systematic review of porous framework materials for global and comprehensive energy&environment related applications,from a macroscopic and application perspective.

关键词： Porous framework materials Catalysis Separation Gas storage Carbon neutrality

Characterization of polycyclic aromatic hydrocarbons and gas/particle partitioning in a coastal city, Xiamen, Southeast China

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Journal of Environmental Sciences 2010年第7期22卷 1014-1022页

作者： jinping zhao Fuwang Zhang Jinsheng Chen Ya Xu Key Laboratory of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China Graduate School of Chinese Academy of Sciences Beijing 100049 China

An intensive sampling program had been undertaken in autumn （October, 2008） and winter （December, 2008 and January, 2009） at urban （Xiamen University and Xianyue residential area）, suburban （Institute of Urban Environment）, industrial area （Lulian Hotel） and background （Tingxi Reservoir） in Xiamen, Fujian Province, to characterize the atmospheric concentration and gas-particle phase partitioning of PAHs. The average concentration of total PAHs in winter was almost 1.7 times higher than those in autumn. The log scale plot of Kp versus sub-cooled liquid vapor pressure （PL^0） for all the data of autumn and winter season samples gave significantly different slopes. The slope for the winter samples （-0.72） was steeper than that for the autumn samples （-0.58）. The partitioning results indicated that slope values varied depending on characteristics of specific site, source region and meteorological conditions which play important roles in the partitioning of PAHs. In addition, local emission sources had a stronger effect on partitioning results than long-transported polluted plume. The sources of PAHs in five sampling sites in Xiamen also have been discussed initially. Diagnostic ratios showed that the primary source of PAHs in urban, suburban and industrial area was from vehicle exhausts. While emission from petrochemical factory and power plant was another main contributor to industrial area.

关键词： PAHs gaseous/particulate partitioning diagnostic ratio Xiamen

Quantification,morphology and source of humic acid,kerogen and black carbon in offshore marine sediments from Xiamen Gulf,China

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Journal of Environmental Sciences 2013年第2期25卷 287-294页

作者： Yanting Chen jinping zhao Liqian Yin Jinsheng Chen Dongxing Yuan Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of Sciences Environmental Science and Engineering Department Huaqiao University Guangdong Environmental Monitoring Center State Key Laboratory of Marine Environmental Science Xiamen University

Three types of macromolecular organic matters （MOMs）, i.e. humic acid （HA）, kerogen＋black carbon （KB）, and black carbon （BC） were extracted from marine sediments of Xiamen Gulf, southeast of China. The chemical composition, morphological property and source of the three extractions were characterized by elemental analyzer/isotope ratio mass spectrometry （EA/IRMS） and scanning electron microscope （SEM）. The results showed that KB was the predominant fraction in MOMs, which accounted for 61.79%-89.15% of the total organic content （TOC）, while HA consisted less than 5%. The relative high contents of kerogen and BC, and low contents of HA in the samples indicated that anthropogenic input might be the major source of organic matter in marine sediments near the industrial regions. The characterization of SEM, not only revealed morphological properties of the three fractions, but also allowed a better understanding of the source of MOMs. The δ 13 C values of the three fractions suggested that materials from terrestrial C 3 plants were predominant. Furthermore, the anthropogenic activities, such as the discharge of sewage, coal and biomass combustion from industry nearby and agricultural practices within drainage basin of the Jiulong River, were remarkably contributed to the variations in δ 13 C values of MOMs in the offshore marine sediments.

关键词： macromolecular organic matters elemental analyzer/isotope ratio mass spectrometry scanning electron microscope offshore marine sediment Xiamen

Pollution characteristics of organic and elemental carbon in PM_(2.5) in Xiamen,China

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Journal of Environmental Sciences 2011年第8期23卷 1342-1349页

作者： Fuwang Zhang jinping zhao Jinsheng Chen Ya Xu Lingling Xu Key Lab of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China. Graduate University of Chinese Academy of Sciences Beijing 100049 China

Xiamen, located on the southeastern coastal line of China, is undergoing rapid urbanization and industrialization, so its air quality has a trend of degradation. However, studies on level, temporal and spatial changes of fine particles （PM2.5） and their carbonaceous fractions are scarce. In this article, abundance, sources, seasonal and spatial variations, distribution of organic carbon （OC） and elemental carbon （EC） in PM2.5, were studied at suburban, urban and industrial sites in Xiamen during four season-representative months in 2009-2010. PM2.5 samples were collected with middle volume sampler and were analyzed for OC and EC with thermal optical transmittance （TOT） method. Results showed that the annual average PM2.5 concentrations were 63.88-74.80 Ixg/m3 at three sites. While OC and EC concentrations were in the range of 15.81-19.73 [xg/m3 and 2.74-3.49 ~tg/m3, respectively, and clearly presented the summer minima and winter maxima in this study. The carbonaceous aerosol accounted for 42.8%-47.3% of the mass of PMzs. The annual average of secondary organic carbon （SOC） concentrations in Xiamen were 9.23-11.36 ~g/m3, accounting for approximately 56% of OC. Strong correlations between OC and EC was found in spring （R2 = 0.50） and autumn （R2 = 0.73）, suggesting that there were similar emission and transport processes for carbonaceous aerosols in these two seasons, while weak correlations were found in summer （R2 = 0.33） and winter （R2 = 0.41）. The OCI＇EC ratios in PM2.5 varied from 2.1 to 8.7 with an annual average of 5.7, indicating that vehicle exhaust, coal smoke and biomass burning were main source apportionments of carbonaceous fractions in Xiamen.

关键词： fine particle carbonaceous aerosol organic carbon elemental carbon Xiamen