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Metal-organic nanosheet assembly ions sieving membrane for precise lithium ion and anion/solvent separation toward robust lithium metal battery

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Science China Chemistry 2024年第10期67卷 3320-3327页

作者： Jian-Qiang Shen Tian-Tian Zhao Ying-Li Song Lingjuan zhang ya-nan Gao Xiao-nan Cui Peng Zhao Xian-Ming zhang Key Laboratory of Magnetic Molecules&Magnetic Information Materials Ministry of EducationSchool of Chemistry&Material ScienceShanxi Normal UniversityTaiyuan 030031China College of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024China

Metal-organic nanosheets(MONs)as a novel material with tunable pore structures and low mass transfer resistance,have emerged as molecular sieves for the separation of gases and *** theory,they can also serve as ion sieves for lithium metal batteries(LMBs),realizing the high-energy and dendritic free ***,there are rarely relevant reports,because it is difficult to simultaneously balance efficient ion sieving ability,high ion passing rate and high electrochemical ***,we synthesized a stable ultrathin MON[Zn_(2)(Bim)_(4)]([Zn_(2)(Bim)_(4)]nanosheet,HBim=benzimidazolate),which can achieve both efficient lithium ion sieving ability,high lithium ion passing rate and high electrochemical stability at the same *** separator assembled by this MON exhibits high Li^(+)transfer number of 0.81 due to the accurate lithium ion and anion/solvent *** battery containing such separator shows high lithium ionic conductivity of 0.74 m S cm^(-1)and low activation energy of 0.099 eV,which can be attributed to the nanometer level thickness and the ion sieving *** is more,we realized the application of MONs-based ion sieves in LMBs with intercalation cathodes for the first *** the LiFePO_(4)|Li battery with as-assembled separator demonstrates improved Coulombic efficiency(>99%)and significantly extended cycling life(>1600 cycles)with 80%capacity retention.

关键词： lithium sieving membrane metal-organic nanosheets lithium metal battery lithium ion and anion separation lithium ion and solvent separation

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Combination of Quercetin, Hirudin and Cinnamaldehyde Promotes Schwann Cell Differentiation and Myelination against High Glucose by Inhibiting ERK Signaling Pathway

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Chinese Journal of Integrative Medicine 2020年第8期26卷 591-598页

作者： LIU Di LIANG Xiao-chun SUN Ying WU ya-nan zhang Hong Department of Traditional Chinese Medicine Peking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical SciencesBeijing 100730China Department of Cell Resource Center Institute of Basic Medical SciencePeking Union Medical College and Chinese Academy of Medical SciencesBeijing 100730China the Department of Nephrology Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100700China

Objective:To investigate the therapeutic and synergistic effects of QHC(combination of quercetin(Q),hirudin(H)and cinnamaldehyd(C))on Schwann cell differentiation and myelination against high glucose(HG)induced ***:Primary-culture Schwann cells exposed to HG(50 mmol/L)for 72 h and Schwann cell–dorsal root ganglion(DRG)neuron cocultures exposed to HG(50 mmol/L)for 7 days were employed as in vitro model of diabetic *** cells were randomly divided into 10 groups:control(CON,25 mmol/L glucose),HG(50 mmol/L glucose),HG plus 10μmol/L quercetin(Q),HG plus 0.04 IU/mL hirudin(H),HG plus 100 nmol/L cinnamaldehyd(C),HG plus 10μmol/L quercetin and 0.04 IU/mL hirudin(QH),HG plus 10μmol/L quercetin and 50 nmol/L cinnamaldehyd(QC),HG plus 0.04 IU/mL hirudin and 50 nmol/L cinnamaldehyd(HC),HG plus 10μmol/L quercetin,0.04 IU/mL hirudin and 50 nmol/L cinnamaldehyd(QHC)or 10μmol/L *** differentiation was evaluated by periaxin immunofluorescence *** protein expression levels of myelin protein zero(P0),myelin basic protein(MBP),myelin-associated glycoprotein(MAG),extracellular signal-regulated kinase(ERK),p-ERK,p-c-Jun,c-Jun,notch intracellular domain(NICD)and the mRNA expression levels of P0,MBP,MAG,Krox-20,Notch1 and Jagged1 were detected by Western blotting and real-time quantitative PCR *** secretion of ciliary neurotrophic factor(CNTF)was determined by enzyme-linked immunosorbent assay(ELISA).The number and length of the myelin segments were evaluated by MBP immunofluorescence *** expression and the location of p-ERK in cocultures were detected by MAG and p-ERK immunofluorescence double ***:Co-treatment with Q,C,H and their combination promoted Schwann cell differentiation,increased CNTF secretion,up-regulated the protein and m RNA expressions of myelin,and increased the number and length of the myelin segments(P<0.01 or P<0.05).In particular,the combination therapy of Q,H and C was superior to the respective mono

关键词： diabetic peripheral neuropathy extracellular signal-regulated kinase pathway Schwann cells myelination Chinese medicine synergistic effect

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In-flight particle characterization and coating formation under low pressure plasma spray condition

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Journal of Iron and Steel Research International 2017年第3期24卷 306-312页

作者： nan-nan zhang Dan-yang Lin ya-li Li Yue zhang Marie-pierre Planche Han-lin Liao Christian Coddet Fu-yu Dong Department of Material Science and Engineering Shenyang University of Technology IRTES-LERMPS University of Technology of Belfort-Montbeliard

Yttria-stabilized zirconia（ YSZ） coatings were deposited by low pressure plasma spray（ LPPS） in 1.0× 10^4 Pa,1.5 × 10^4 Pa,and 2.5 × 10^4 Pa. Both in-flight particle diagnostic detected by DPV-2000 system and ANSYS-FLUENT software were used to study the connection between the parameters of flying particles and the coating formation,which might help to recognize the relationship between the operation parameters and the coatings quality. The results of simulation showed that particles in a lower spray pressure could achieve a higher velocity. The particle velocity was around 380 m/s at a distance of 35 cm from the nozzle at 1.0 × 10^4 Pa while only 300 m/s at 2.5 × 10^4 Pa in actual *** results showed that the velocity of particles increased with decreasing the spray pressure,which might enhance the flattening rate of coatings and thereby decreased the porosity. The deposited YSZ coating with the lowest porosity can be gained under 1.0 × 10^4 Pa condition.

关键词： In-flight particle detection Low pressure plasma spray Yttria-stabilized zirconia coating Flame simulation

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Comparison of the Tellgenplex HPV DNA test with the PCR-reverse dot blot assay for human papillomavirus genotyping

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Asian Pacific Journal of Tropical Medicine 2018年第2期11卷 141-146页

作者： ya-Chao yao nan Li Liang-Shan Hu ya-Hong Li Zhi zhang Department of Laboratory Medicine and Central Laboratories Guangdong Second Provincial General Hospital

Objective: To access the performance of the Tellgenplex human papillomavirus(HPV) DNA test compared to the polymerase chain reaction-reverse dot blot(PCR-RDB) assay for the HPV ***: Sixty cervical swab samples were genotyped by the Tellgenplex HPV DNA test and the PCR-RDB *** Tellgenplex HPV DNA test and the PCR-RDB assay can detect 26 and 23 HPV genotypes, *** sample showed discrepancy was genotyped using ***: The percent agreement between the two tests ranged from 83.3% to 100.0% according to different *** showed perfect agreement(>0.81) for high-risk HPV genotypes(35, 39, 45, 53, 56, 59, 66, 68, and 82), substantial agreement(>0.65) for high-risk HPV genotypes(16, 18, 33, 52, and 58) and low-risk HPV genotype 43 between the two assays by the kappa *** positive rates of the two assays for frequent HPV genotypes(16, 35, 39, 45, 52, 53, 58, 59, 66, and 82) were not statistically different, but the PCR-RDB assay showed higher positive rates than the Tellgenplex HPV DNA test for HPV genotypes 81(P<0.05).As for more than 10 positive results by the Tellgenplex HPV DNA test and/or the PCR-RDB assay, the PCR-RDB assay showed higher relative sensitivity and specificity than the Tellgenplex HPV DNA test for the three HPV genotypes(16, 52, and 81).All HPV genotypes that can be detected by only the Tellgenplex HPV DNA test(HPV genotypes 44 and 55) were confirmed by ***: In conclusion, our results demonstrated that the PCR-RDB assay which can detect more multiple HPV genotypes in each specimen shows higher relative sensitivity and specificity than the Tellgenplex HPV DNA test, which makes it a better option for routine clinical use.

关键词： Human papillomavirus Genotying Polymerase chain reaction-reverse dot blot Flowcytometry fluorescence hybridization

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Structural transformation from Waugh-type to Keggin-type polyoxomolybdate-based crystalline material for photo/electrocatalysis

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Rare Metals 2024年第5期43卷 2241-2250页

作者： Pei-Sen Wang Zi-Tong Wang ya-ya Tan Peng Chen Xue-Cheng zhang Lu-nan zhang Yong-Ge Wei Lu-Bin Ni School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China State Key Laboratory of Natural and Biomimetic Drugs Peking UniversityBeijing100191China

An inorganicDorganic hybrid crystalline material(SiMo_(12)O_(40))[Cu(2,2'-bipy)_(2)]_(2)·2H_(2)O(Complex 1,2,2'-bipy=2,2'-bipyridine)was synthesized for the first time by using 2,2'-bipy and transition metal copper to convert Waugh-type polyoxometalate[MnMo_(9)O_(3)_(2)]_(6-)into a Keggin polyoxometalate structure[SiMo_(12)O_(40)]^(4-)under hydrothermal conditions in glass *** crystal tests and a series of characterizations were carried out on Complex *** structure of Complex 1 is composed of[SiMo_(12)O_(40)]^(4-)and[Cu^(Ⅱ)(2,2'-bipy)_(2)]^(2+).The five-coordinated Cu is connected to two 2,2'-bipy through CuDN bonds,forming an approximately square ***,Complex 1 exhibited good photocatalytic performance for methylene blue degradation and electrocatalytic nitrite reduction properties simultaneously.

关键词： Polyoxometalates Inorganic-organic hybrid materials Photocatalytic Electrocatalytic

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New Early Cambrian Maikhanellids(Mollusca) from zhangjiagou Section, South Shaanxi, China

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Acta Geologica Sinica(English Edition) 2022年第2期96卷 440-446页

作者： zhang ya'nan LIU Yunhuan SHAO Tiequan WANG Qi QIN Jiachen zhang Wei LIANG Tanxing School of Earth Science and Resources Chang'an UniversityXi'an 710054China

A new maikhanellid genus, Totornatus gen. nov., from the Lower Cambrian(Fortunian Stage) of zhangjiagou section at Xixiang County, southern Shaanxi Province, South China, is based on a new taxon T. strigatus gen. et sp. nov. Although showing similar morphology with a cap-shaped shell and an oval aperture to other members of the family, the new species differs from previous maikhanellids in its smooth apex. The apical field consists of dense, small, round or oval granules, which gradually merge to bigger, elongated, scale-like protrusions toward the apertural margin. On this basis, we establish Totornatus strigatus, which shows a transverse groove in two-ninths of its shell. This result enriches the diversity of the earliest mollusks and maikhanellids.

关键词： invertebrate paleontology mollusks Maikhanellidae Fortunian zhangjiagou Shaanxi Province

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Directional Preimage Entropy for ■-Actions

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Journal of Mathematical Research with Applications 2020年第1期40卷 33-46页

作者： ya-nan GAO Ziyao zhang Faculty of International Language Education Hebei Foreign Studies University College of Mathematics and Computer Science Hanjiang Normal University

In this paper, a new type of entropy, directional preimage entropy including topological and measure theoretic versions for ■-actions, is introduced. Some of their properties including relationships and the invariance are obtained. Moreover, several systems including ■-actions generated by the expanding maps, ■-actions defined on finite graphs and some infinite graphs with zero directional preimage branch entropy are studied.

关键词： ■-actions directional preimage entropy infinite graph

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The effects of water and nitrogen on the roots and yield of upland and paddy rice

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Journal of Integrative Agriculture 2020年第5期19卷 1363-1374页

作者： zhang ya-jie XU Jing-nan CHENG ya-dan WANG Chen LIU Gao-sheng yaNG Jian-chang Jiangsu Key Laboratory of Crop Genetics and Physiology Co-Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhou 225009P.R.China

It is of great significance to study the root characteristics of rice to improve water and nitrogen(N) use efficiency and reduce environmental pollution. This study investigated whether root traits and architecture of rice influence grain yield, as well as water and N utilization efficiency. An experiment was conducted using the upland rice cultivar Zhonghan 3(a japonica cultivar) and paddy rice cultivar Huaidao 5(also a japonica cultivar) using three N levels, namely, 2 g urea/pot(low amount, LN), 3 g urea/pot(normal amount, NN), and 4 g urea/pot(high amount, HN), and three soil water potentials(SWPs, namely, well-watered(0 kPa), mildly dried(–20 kPa) and severely dried(–40 kPa). The results showed that with decreasing SWP, the percentage of upland rice roots increased in the 0–5 cm tillage layer, and decreased in the 5–10 and 10–20 cm tillage layers, whereas paddy rice roots showed the opposite trend. With increasing amounts of N, the yield of upland and paddy rice increased, and the percentage of root volume ratios of the two rice cultivars in the 0–5 and 5–10 cm tillage layers increased, whereas that in the 10–20 cm tillage layer decreased. The roots of upland rice are mainly distributed in the 10–20 cm tillage layer, whereas most paddy rice roots are in the 0–5 cm tillage layer. These results indicate that the combination of-20 kPa SWP and NN in upland rice and 0 kPa SWP and LN in paddy rice promotes the growth of the root system during the middle and late stages, which in turn may decrease the requirements for water and N fertilizer and increase rice yield.

关键词： upland rice paddy rice root traits root architecture soil water potential nitrogen

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Synthesis and electrochemical properties of Li FePO_(4) cathode material by ionic thermal method using eutectic mixture of tetramethyl ammonium chloride-urea

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Rare Metals 2021年第12期40卷 3477-3484页

作者： Si-nan Li Shao-Hua Luo Liu yang Qing Wang ya-Hui zhang Xin Liu School of Materials Science and Engineering Northeastern UniversityShenyang 110819China School of Resources and Materials Northeastern University At QinhuangdaoQinhuangdao 066004China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004China

In this study, the LiFePO_(4) cathode was synthesized by the ionic thermal method using the deep eutectic mixture of tetramethyl ammonium chloride and urea. The synthetic conditions were systematically investigated by orthogonal experiments, which indicate that the optimal reaction time, reaction temperature, molar ratio of Li to DES and rotate speed are 96 h, 220 ℃, 1:14 and20 r·min^(-1), respectively. X-ray diffraction(XRD), scanning electron microscope(SEM) and transmission electron microscope(TEM) were characterized to investigate the crystalline structure and morphology of the obtained materials, indicating well-crystallized LiFePO_(4) with olivine structure. And the physical properties of LiFePO_(4) were explored through Fourier transform infrared spectroscopy(FTIR),57 Fe Mo¨ ssbauer absorption spectra and Raman spectra. An initial discharge capacity can reach 151 m Ah·g^(-1) at 0.1 C rate for LiFePO_(4) following by calcining at 600 ℃ under the optimal conditions, and it retains 125.1 m Ah·g^(-1) after 100 cycles. These results demonstrated that the addition of ionic liquids can improve the rate performance, cycle performance and ion diffusion rate of LiFePO_(4).

关键词： LiFePO_(4) Deep eutectic solvents Ionic thermal method Orthogonal experiments Electrochemical performance

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Time history of seismic earth pressure response from gravity retaining wall based on energy dissipation

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Journal of Mountain Science 2022年第2期19卷 578-590页

作者： QU Hong-lue DENG Yuan-yuan GAO ya-nan HUANG Xue zhang Zhe School of Geoscience and Technology Southwest Petroleum UniversityChengdu 610500China State Key Laboratory for GeoMechanics and Deep Underground Engineering China University of Mining&TechnologyBeijing 100083China China University of Mining&Technology Xuzhou 221116China

The seismic design of gravity retaining walls is based mostly on the pseudo static *** seismic earth pressure is assumed to be a constant without considering the wave traveling effect when the seismic wave propagates through the ***,under continuous ground motion,the actual earth pressure on the retaining wall varies with *** present seismic earth pressure calculation method yields results that differ significantly from the actual *** this,a slip surface curve was assumed in this *** is more suitable for engineering *** addition,a theoretical calculation model based on energy dissipation was *** time history of seismic earth pressure response under continuous ground motion was calculated using the equilibrium equation between the external power and the internal energy dissipation power of the sliding soil *** can more effectively reflect the stress scenario of a retaining wall under seismic *** verify the applicability of the proposed approach,a large-scale shaking table test was conducted,and the time history of the seismic earth pressure response obtained from the experiment was compared with the calculation *** results show that the proposed approach is applicable to the calculation of the time history of seismic earth pressure response of gravity retaining *** lays the foundation for the seismic design of retaining structures by using dynamic time history.

关键词： Energy dissipation Time history of seismic earth pressure response Slip surface curve Gravity retaining wall Shaking table test

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