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Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao zhang Pan Xiong Xin wang junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

Co - transplantation haploidentical mesenchymal stem cells and hematoietic stem cells with nonmyeloablative condition for treatment of relapsed or refractory acute leukaemia

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Co - transplantation haploidentical mesenchymal stem cells a...

第10届全国实验血液学会议

作者： Hui-Sheng Ai Mei-Guo Chang-Lin Yu Dan - Hong wang Jian - Hui Qiao Qi - Yun Sun wan - jun Sun zhang - Shi Department of Hematology North Tai Ping Road Hospital (Beijing 100039)

＜正＞Background The major problems of haploidentical stem cell transplantation is severe graft versus host disease （GVHD） and graft rejection because of MHC barrier. Recently, some studies shown that mesenchymal stem cells （MSCs） which can be differentiated into various cells of MSCs origin has some good ability of immunosuppressive activity which may be used for enhance hematopoietic engraftment and lessen GVHD after transplant. So we desinged the protocole of co-transplantation haploiddentical MSCs and perpheral blood stem cell with nonmyeloablative conditions based on our past clinical trails of NST with HLA - march donor and haploid transplant experiment of Rhesus and want to improve the effective of haploidentical transplant in relapsed or refractory acute leukaemia. Methods Eleven patients （year range 8-33） with HLA - mismarch donor （ 3/6 = 6, 4/6 = 3,5/6 = 1） in relapsed or refractory a

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基于性能的门式刚架抗火性能研究

钢结构 2017年第6期32卷 115-120页

作者：万军杜二峰张欣欣胡尚文南京市消防支队南京210001 东南大学南京210096 东南大学建筑设计研究院有限公司南京210096 江苏省建筑设计研究院有限公司南京210019

基于性能化抗火设计思想,利用场模拟软件FDS(Fire Dynamics Simulator)对门式刚架钢结构厂房各种可能的火灾场景进行仿真分析,获得火灾升降温全过程的时间-温度曲线。在此基础上,运用ANSYS建立有初始缺陷的门式刚架有限元模型对其火灾... 详细信息

基于性能化抗火设计思想,利用场模拟软件FDS(Fire Dynamics Simulator)对门式刚架钢结构厂房各种可能的火灾场景进行仿真分析,获得火灾升降温全过程的时间-温度曲线。在此基础上,运用ANSYS建立有初始缺陷的门式刚架有限元模型对其火灾全过程的力学性能进行直接分析。结果表明,当发生火源功率达到25 MW的严重火灾时,对于柱脚形式为铰接的门式刚架,结构很快发生侧移破坏,需要对整榀刚架进行防火保护,但柱脚如果采取固接形式,则只需对钢柱进行防火保护。当仅发生火源功率不超过5 MW的一般火灾时,只对钢柱进行防火保护即可。

关键词：门式刚架火灾场景火灾模拟直接分析有限元

From blocker to booster:Harnessing garnet surface chemistry for advanced solid-state electrolytes

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Nano Research 2025年第1期18卷 323-331页

作者： jun Cheng Xuan Zhou Hongqiang zhang Zhen Zeng Yuanyuan Li Yulong Zhu Yingsheng Liao Lijie Ci Deping Li State Key Laboratory of Precision Welding and Joining of Materials and Structures School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China

Garnet electrolytes with high ionic conductivity and electrochemical stability are widely used as fillers to fabricate composite solid electrolytes(CPEs)within polymer ***,the performance of CPEs is significantly influenced by the surface characteristics of the garnet ***,the impact of garnet surface characteristics on CPEs was systematically investigated and a conversion from a typically unstable and Lewis basic surface to a more stable Lewis acidic surface was realized,which is shown to be more conductive to the improved performance of *** simultaneously removing the Li_(2)CO_(3)layer and applying a Li-Al-O coating,the influence of surface characteristics on CPEs was *** Lewis acid Li-Al-O surface coating not only promotes lithium salt dissociation,improving the ionic conductivity and ionic transfer number,but also prevents the reformation of the passive Lewis basic Li_(2)CO_(3)*** to garnet with a Lewis basic Li_(2)CO_(3)surface,the garnet modified with a Lewis acid Li-Al-O coating enhances CPEs,which exhibit an improved critical current density of 1.0 mA·cm^(-2)and highly stable lithium symmetric cell cycling for 400 h at 0.2 mA·cm^(-2).This research highlights the importance of surface chemistry in the design of high-performance solid-state batteries and presents a strategic modification approach for garnetbased CPEs.

关键词： garnet electrolyte composite solid electrolyte surface chemistry all-solid-state batteries

Engineering of Fe d-band center in Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles via orbital coupling for high-efficiency oxygen reduction electrocatalysis

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Nano Research 2025年第1期18卷 129-139页

作者： Jiayi Liu Jingwen Yin Yingzi Lin Mingxin Pang Huan Pang Songtao zhang Lin Xu jun Yang Yawen Tang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023Chin a 2 State Key Laboratory of Multiphase Complex Systems Center of MesoscienceInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Testing Center Yangzhou UniversityYangzhou 225009China

The deliberate engineering of the d-band center of metal site represents an effective strategy to boost the intrinsic electrocatalytic performance toward the oxygen reduction reaction(ORR).Herein,following a heterointerfaceinduced orbital coupling rationale,we report a judicious design of an efficient ORR electrocatalyst consisting of Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles in-situ encased into N-doped carbon nanofibers(abbreviated as Fe_(3)O_(4)/CeO_(2)@N-CNFs hereafter).The theoretic calculations uncover that the Fe_(3)O_(4)/CeO_(2)heterointerface-triggered orbital coupling can cause the down shift of the d-band center positions of Fe sites,which leads to the weakened chemisorption of oxygenated groups and lowered energy barrier for the potential-determining step,ultimately dramatically boosting the ORR intrinsic *** a consequence,the well-designed Fe_(3)O_(4)/CeO_(2)@N-CNFs display admirable ORR activity with a half-wave potential of 0.84 V and outstanding structural/electrochemical stability in an alkaline electrolyte,surpassing the commercial Pt/C benchmark and a majority of recently reported Fe_(3)O_(4)-based *** encouragingly,the Fe_(3)O_(4)/CeO_(2)@N-CNFsincorporated Zn-air battery outperforms the Pt/C-assembled counterpart with higher power density,larger energy density,and excellent cycling stability,serving as a competent candidate for ORR-involved renewable energy *** study offers an innovative approach for the rational manipulation of the d-band center and interfacial electron behavior of active sites toward the optimization of electrocatalytic performance.

关键词： hetero-nanoparticles electrospinning interfacial engineering orbital coupling oxygen reduction reaction

对羟基苯甲醛缩邻氨基苯甲酸与汞的荧光猝灭反应及其应用

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分析测试学报 2010年第4期29卷 415-417,420页

作者：李惠成仵博万张克钧张兵刘建宁陇东学院化学化工学院甘肃庆阳745000

合成了一种新的席夫碱荧光试剂——对羟基苯甲醛缩邻氨基苯甲酸（HBAA）。研究了HBAA与汞离子的络合反应及其反应条件，HBAA390．0nm处有一强荧光峰，汞离子存在时，可与其形成稳定的络合物并使HBAA的荧光猝灭。利用该反应建立了荧光测... 详细信息

合成了一种新的席夫碱荧光试剂——对羟基苯甲醛缩邻氨基苯甲酸（HBAA）。研究了HBAA与汞离子的络合反应及其反应条件，HBAA390．0nm处有一强荧光峰，汞离子存在时，可与其形成稳定的络合物并使HBAA的荧光猝灭。利用该反应建立了荧光测定痕量汞的新方法，方法的线性范围为0—90．0μg／L，检出限为0．61μg/L。考察了40种常见共存离子的干扰影响，结果表明合成的HBAA试剂具有很高的选择性。该方法简便、快速，可用于矿泉水、自来水、河水中痕量汞的测定。

关键词：对羟基苯甲醛缩邻氨基苯甲酸汞荧光法

Effects of Bifidobacterium lactis BLa80 on fecal and mucosal flora and stem cell factor/c-kit signaling pathway in simulated microgravity rats

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World Journal of Gastroenterology 2025年第1期31卷 93-109页

作者： Ping zhang Ying Zhu Pu Chen Tong Zhou Zhe-Yi Han jun Xiao Jian-Feng Ma Wen Ma Peng Zang Ying Chen Graduate School Hebei North UniversityZhangjiakou 075000Hebei ProvinceChina Key Laboratory of Aerospace Nutrition and Food Engineering China Astronaut Research and Training CenterBeijing 100094China Department of Gastroenterology The Air Force Medical CenterBeijing 100142China Department of Blood Transfusion Air Force Medical CenterBeijing 100142China

BACKGROUND Simulated microgravity environment can lead to gastrointestinal motility *** pathogenesis of gastrointestinal motility disorders is closely related to the stem cell factor(SCF)/c-kit signaling pathway associated with intestinal flora and Cajal stromal ***,intestinal flora can also affect the regulation of SCF/c-kit signaling pathway,thus affecting the expression of Cajal stromal *** cells are the pacemakers of gastrointestinal *** To investigate the effects of Bifidobacterium lactis(***)BLa80 on the intestinal flora of rats in simulated microgravity and on the gastrointestinal motility-related SCF/c-kit *** The internationally recognized tail suspension animal model was used to simulate the microgravity environment,and 30 rats were randomly divided into control group,tail suspension group and drug administration tail suspension group with 10 rats in each group for a total of 28 *** tail group was given *** BLa80 by intragastric administration,and the other two groups were given water intragastric administration,the concentration of intragastric administration was 0.1 g/mL,and each rat was 1 mL/***&eosin staining was used to observe the histopathological changes in each segment of the intestine of each group,and the expression levels of SCF,c-kit,extracellular signal-regulated kinase(ERK)and p-ERK in the gastric antrum of each group were detected by Western blotting and *** fecal flora and mucosal flora of rats in each group were detected by 16S *** Simulated microgravity resulted in severe exfoliation of villi of duodenum,jejunum and ileum in rats,marked damage,increased space between villi,loose arrangement,shortened columnar epithelium of colon,less folds,narrower mucosal thickness,reduced goblet cell number and crypts,and significant improvement after probiotic *** microgravity reduced the expressions of SCF and c-kit,and increased the express

关键词： Simulated microgravity Rat Intestinal flora Gastrointestinal motility Stem cell factor/c-kit signaling pathway

基于ARIMA模型对宁夏地区奶牛体细胞数的趋势预测

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中国畜牧兽医 2017年第1期44卷 131-140页

作者：李欣邵怀峰温万脱征军张伟欣顾亚玲宁夏大学农学院动物生产实验室银川750105 宁夏畜牧工作站DHI实验室银川750105

本研究通过对生产性能测定(DHI)数据的挖掘与分析建立预测宁夏地区奶牛体细胞数(SCC)的模型,为奶牛乳房炎的防制提供借鉴,使得DHI数据更加有效、及时地指导奶业的发展。对2011年9月~2016年2月宁夏地区奶牛平均SCC数据进行差分使其达到... 详细信息

本研究通过对生产性能测定(DHI)数据的挖掘与分析建立预测宁夏地区奶牛体细胞数(SCC)的模型,为奶牛乳房炎的防制提供借鉴,使得DHI数据更加有效、及时地指导奶业的发展。对2011年9月~2016年2月宁夏地区奶牛平均SCC数据进行差分使其达到平稳化,采用季节ARIMA模型对数据进行分析、拟合和预测。利用R软件的***函数计算出合适的时间序列模型ARIMA(1,1,0)(1,1,0)[12],其AIC为-3.67。Acf检验说明残差没有明显的自相关性;Ljung-Box测试显示所有的P值>0.5,表明残差为白噪声,说明此模型可用来对未来的24个月进行预测。再利用R软件的forecast函数对2016年3月~2017年2月的数据进行预测,作出预测图。从预测的结果可以看出,宁夏地区奶牛SCC整体呈现下降趋势。2017年1月SCC最少,预测值约为25.31万个/mL;2016年3月SCC最大,预测值约为43.96万个/mL。从结果也可看出,宁夏地区奶牛SCC均大于隐性乳房炎的临界值(>20万个/mL),说明宁夏地区还应该加大对奶牛乳房炎的防制。同时,若能及时添加新的SCC数据,就能对该数据模型进行更新,使其预测值更接近真实值,对实际生产的指导意义更大。

关键词：时间序列奶牛体细胞数季节ARIMA模型预测

多囊卵巢综合征患者抗苗勒氏管激素、睾酮和胰岛素抵抗相关性的临床研究

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中国血液流变学杂志 2017年第3期27卷 320-322页

作者：万启军张颖杨悌江苏省昆山市中医医院检验科江苏昆山215300

目的探讨多囊卵巢综合征（polycystic ovary syndrome,PCOS）患者抗苗勒氏管激素（anti-Müllerian hormone,AMH）、睾酮（testosterone,T）和胰岛素抵抗（insulin resistance,IR）相关性的临床研究.方法电化学发光法和化学发光法测... 详细信息

目的探讨多囊卵巢综合征（polycystic ovary syndrome,PCOS）患者抗苗勒氏管激素（anti-Müllerian hormone,AMH）、睾酮（testosterone,T）和胰岛素抵抗（insulin resistance,IR）相关性的临床研究.方法电化学发光法和化学发光法测定78例PCOS患者和60名正常对照组血清AMH、T、胰岛素（insulin,Ins）和空腹血糖（fasting blood glucose,FBG）水平,从而计算稳态型胰岛素抵抗指数（homeostasis model assessment for insulin resistance index,HOMA-IR）,并进行对比性分析.结果 PCOS患者血清AMH和T水平显著高于正常对照组（P均〈0.01）;PCOS患者FBG、空腹Ins、HOMA-IR显著高于正常对照组（P〈0.05,P〈0.05,P〈0.01）.结论 PCOS的发生和发展与AMH增高、高雄激素、高胰岛素血症和IR密切相关.

关键词：多囊卵巢综合征抗苗勒氏管激素睾酮胰岛素抵抗