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Construction of highly stable LiI/LiBr-based nanocomposite cathode via triple confinement mechanisms for lithium-halogen batteries

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Chinese Chemical Letters 2023年第11期34卷 350-354页

作者： Mingzhen Ding Ruyu Shi Jie Qu Minman tong College of Chemistry and Chemical Engineering Key Laboratory of Light Energy Conversion Materials of Hunan Province CollegeHunan Normal UniversityChangsha 410081China School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhou 221116China

Lithium-halogen batteries(LHBs),including lithium iodide(Li-I_(2))and lithium bromide(Li-Br_(2))batteries,are receiving more attention for offering high energy density and excellent kinetic ***,LHBs commercialization is seriously hindered by the high solubility of halides,causing lower capacity and poor *** research covers the fabrication of a highly stable cathode of amorphous carbon coated CMK-3/LiI/LiBr nanocomposite for metal lithium *** nanopores and coated layer can physically trap the dissolution of active *** amorphous carbon generated from polyacrylonitrile carries abundant nitrogen heteroatoms for the stable anchorage of halogens and halides via strong chemical *** addition,iodine can act as a complexing agent with bromine to reduce solvation ***,the as-prepared CMK-3/LiI/LiBr/carbon(CIBP)nanocomposite cathode demonstrates an ultra-high reversible capacity of 407.4 mAh/g at the current density of 1.0 C performing up to 300 stable cycles.

关键词： Lithium-halogen batteries Cathode LiI/LiBr High capacity Triple confinement

Electrochemical Enzyme Immunoassay of Tumor Marker CA15-3 with Capillary Electrophoresis

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Chinese Chemical Letters 2002年第11期13卷 1090-1092页

作者： Zhi Hui HE Wen rui JIN School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100

Tumor marker CA15-3 was determined by using capillary electrophoretic enzyme immunoassay with electrochemical detection (CE-EIA-ED). The method can be used to detect CA15-3 with a limit of 0.024 U/mL.

关键词： Capillary electrophoretic enzyme immunoassay electrochemical detection tumor marker CA15-3.

AN ADAPTIVE CONTROL STRATEGY FOR PROPER MESH DISTRI-BUTION IN LARGE EDDY SIMULATION

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Journal of Hydrodynamics 2010年第6期22卷 865-870页

作者： ZHANG Bin WANG tong GU Chuan-gang DAI Zheng-yuan Key Laboratory for Power Machinery and Engineering of Ministry of Education Shanghai Jiao Tong University Shanghai 200240 China Trane＇s Asia-Pacific Research Center Shanghai 200001 China

The Filtering Grid Scale （FGS） of sub-grid scale models does not match with the theoretical Proper FGS （PFGS） because of the improper mesh. Therefore, proper Large Eddy Simulation （LES） Mesh is very decisive for better results and more economical cost. In this work, the purpose is to provide an adaptive control strategy for proper LES mesh with turbulence theory and CFD methods. A new expression of PFGS is proposed on the basis of -5/3 law of inertial sub-range and the proper mesh of LES can be built directly from the adjustment of RANS mesh. A benchmark of the backward facing step flow at Re = 5147 is provided for application and verification. There are three kinds of mesh sizes, including the RANS mesh, LAM （LES of adaptive-control mesh）, LFM （LES of fine mesh）, employed here. The grid number of LAM is smaller than those of LFM evidently, and the results of LAM are in a good agreement with those of DNS and experiments. It is revealed that the results of LAM are very close to those of LFM. The conclusions provide positive evidences for the novel strategy.

关键词： Large Eddy Simulation (LES) Proper Filtering Grid Scale (PFGS) turbulence -5/3 law adaptive control

New progresses of Chinese art casting

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China Foundry 2007年第2期4卷 99-102页

作者： TAN De-rui Director of Art Casting Technical Committee of China Foundry Association Vice-chairman of China

The Chinese art casting with 5 000 years history has been rapidly developed in recent ten years. This benefits from the great development of Chinese economy, the large-scale urban construction and transformation, the increasing demands for the cultural work of art, the loose religious environment and the expanding international market.

关键词：中国艺术铸造技术进展表面着色技术表面装饰群像

Synergistic governance:China's roadmap to improved health through climate and clean air actions

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Environmental Science and Ecotechnology 2024年第4期20卷 14-15页

作者： Tao Xue tong Zhu Institute of Reproductive and Child Health National Health Commission Key Laboratory of Reproductive Health and Department of Epidemiology and BiostatisticsMinistry of Education Key Laboratory of Epidemiology of Major Diseases(PKU)School of Public HealthPeking University Health Science CentreBeijingChina SKL-ESPC and SEPKL-AERM College of Environmental Sciences and EngineeringCenter for Environment and HealthPeking UniversityBeijing100871China

The COP28's inaugural Health Day highlighted the growing recognition of the connection between climate and health,while China's State Council released its third air quality action plan aiming at ongoing health *** Synergetic Roadmap project[1],which aims to track China's progress towards carbon neutrality and clean air,provides valuable insights to answer a set of intriguing questions concerning environmental health determinants,their source sectors,and the methods for harmonizing disparate actions to maximize health gain.

关键词： concerning neutral clean

Heterogeneous uptake of nitrogen dioxide on Chinese mineral dust

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Journal of Environmental Sciences 2015年第12期27卷 110-118页

作者： Li Zhou Weigang Wang Siqi Hou Shengrui tong Maofa Ge Beijing National Laboratory for Molecular Science (BNLMS) State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesInstitute of ChemistryChinese Academy of Sciences Beijing National Laboratory for Molecular Science (BNLMS) State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesPeking University

Mineral dust is one of the major aerosols in the *** assess its impact on trace atmospheric gases,in this work we present a laboratory study of the effect of temperature on the heterogeneous reaction of NO2 on the surface of ambient Chinese dust over the temperature range from 258 to 313 *** results suggest that nitrogen dioxide could mainly be adsorbed on these types of Chinese mineral dust reversibly with little temperature *** to a previous study on NO2 uptake on mineral aerosols,the uptake coefficients are mainly on the order of 10^（-6） for the Chinese dust,when BET areas are taken into *** was observed as a product,and its formation and decomposition on Chinese mineral dust during the uptake processes were also *** complete dataset from this study was compiled with previous literature *** implications of the heterogeneous reaction between NO2 and mineral dust are also discussed,in an effort to understand this important heterogeneous process.

关键词： Mineral dust Nitrogen dioxide Uptake coefficient Temperature dependence

Optical and Electric and Structural Properties of Ti_(1-x)Al_(x)N Thin Films

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Chinese Physics Letters 1998年第7期15卷 533-534页

作者： LI Zuo-yi XIONG rui yang Xiao-fei HU Zuo-qi XU Ying LIN Geng-qi LU Zhi-hong Department of Solid State Electronics Huazhong University of Science and TechnologyWuhan 430074 Shanghai Institute of Metallugy Chinese Academy of SciencesShanghai 200050

A sequence of Ti_(1-x)Al_(x)N films has been prepared by rf reactive magnetron *** optical and electric properties versus aluminum content x have been *** suitable for magneto-optic protective layers have been achieved in Ti_(1-x)Al_(x) N thin films with aluminum content x>0.75.X-ray diffraction results show that Ti_(1-x)Al_(x) N thin films in this study are a bcc structure up to x=0.75,further increase in the aluminum content gives a wurtzite *** of the results show that the optical and electric properties of Ti_(1-x)Al_(x) N films might be related to the crystal structure.

关键词： structure films

Effects of graphene oxides on transport and deposition behaviors of bacteria in saturated porous media

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Science China(Technological Sciences) 2019年第2期62卷 276-286页

作者： GE Zhi WU Dan HE Lei LIU XianWei tong MeiPing The Key Laboratory of Water and Sediment Sciences Ministry of Education College of Environmental Sciences and EngineeringPeking University

The effects of graphene oxides on the transport and deposition behaviors of bacteria(Gram-negative Escherichia coli and Grampositive Bacillus subtilis) in quartz sand were investigated in both NaCl and CaCl_2 solutions at pH 6.5. Both breakthrough curves and retained profiles of bacteria in the absence and presence of GO under all examined solution conditions were obtained. The results demonstrated that for both types of bacteria, the presence of GO increased the transport and decreased the deposition of bacteria at both low(10 mM) and high ionic strengths(50 mM) in NaCl solutions. However, opposite observations were achieved at different ionic strengths in CaCl_2 solutions. Particularly, GO facilitated the transport and inhibited the deposition of bacteria in 1 m M CaCl_2 solutions, while they suppressed the transport of bacteria in 2.5 m M CaCl_2 solutions. Clearly, the cell transport and deposition behaviors in porous media would be greatly influenced by the GO copresent in suspensions. Furthermore, we found that with GO copresent in suspensions, the transport and deposition behaviors of bacteria were highly associated with those of GO. The heteroaggregation of bacteria and GO also contributed to the decreased cell transport in 2.5 mM CaCl_2 solutions. This study showed that GO copresent in suspensions could act as mobile carriers for bacteria transport in porous media, leading to the alteration of cell transport and deposition behaviors.

关键词： bacteria transport graphene oxide interaction cotransport porous media

Mechanical Property, Oxidation and Ablation Resistance of C/C–ZrB_2–ZrC–SiC Composite Fabricated by Polymer Infiltration and Pyrolysis with Preform of C_f/ZrB_2

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Journal of Materials Science & Technology 2017年第5期33卷 481-486页

作者： Dong Huang Mingyu Zhang Qizhong Huang Liping Wang Kai tong College of Materials Science and Engineering Hunan University State Key Laboratory for Powder Metallurgy Central South University

CJC-ZrB2-ZrC-SiC composites were fabricated by polymer infiltration and pyrolysis （PIP） with a preform of G/ZrB2. The carbon fibers and the resin carbon were coated with ceramic layer after PIP in the com- posites. The composite presents a pseudo-plastic fracture due to deflection of cracks and pullout of fibers. The composite has a higher bending strength by this method in comparison with the conventional PIP process due to fewer heat treatment cycles. The static oxidation test shows that the mass loss of the composites is no more than 1% after 20 rain oxidation at 1100 ~C. The ＂core-shell＂ structure between ZrC-SiC ceramic and other phases plays a positive role in preventing the inward diffusion of oxygen. The ablation resistance of the C/C-ZrB2-ZrC-SiC composite samples was tested using a plasma generator. After ablation for 120 s, the mass and linear ablation rates of the composites are 4.65 mg cm-2 s-1 and 2.46 μm s-1, respectively. The short carbon layer shows a better ablation resistance than the nonwoven carbon fabric layer after the ceramic coating is peeled off because of its higher ceramic content.

关键词： C/C composite Ceramic-matrix composites High temperature corrosion