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Ambiently fostering solid electrolyte interphase for low-temperature lithium metal batteries

Journal of Energy chemistry 2023年第12期87卷 473-478,I0012页

作者： Jia-Yue Duan Jin-Xiu Chen Fang-Fang Wang Jin-Hao Zhang Xiao-Zhong Fan liping Wang Yingze Song Wei Xia Yusheng Zhao Long Kong Frontiers Science Center for Flexible Electronics and Xi’an Institute of Flexible Electronics(IFE) Northwestern Polytechnical UniversityXi’an 710129ShaanxiChina Department of Physics Academy for Advanced Interdisciplinary StudiesSouthern University of Science and TechnologyShenzhen 518055GuangdongChina state key laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringGraphene Joint Innovation CentreSouthwest University of Science and TechnologyMianyang 621010SichuanChina Eastern Institute for Advanced Study Eastern Institute of TechnologyNingbo 315201ZhejiangChina

Despite being a leading candidate to meet stringent energy targets,lithium(li) metal batteries(LMBs)face severe challenges at low temperatures such as dramatic increase in impedance,capacity loss and dendrite *** fingerprinting rate-limited factors of low-temperature LMBs would encourage targeted approaches to promote ***,the charge transfer impedance across solid electrolyte interphase(SEI) is identified to restrict battery operation under low temperature,and we propose a facile approach on the basis of ambiently fostering SEI(af-SEI) to facilitate charge *** concept of af-SEI stems from kinetic benefits and structural merits to construct SEI at ambient temperature over low temperature developed SEI that is temporally consuming to achieve steady state and that is structurally defective to incur dendrite *** af-SEI allows ionically conductive and morphologically uniform layer on the anode surface,which exhibits a lower resistance and induces an even deposition of li in the subsequent low temperature battery *** with af-SEI,the LMBs deliver the improved rate performance and prolonged cycle life when subjected to low temperature *** work unveils the underlying causes that limit low temperature LMB performances,and enlightens the facile test protocols to build up favorable SEI,beyond scope of material and morphology design.

关键词： li matel batteries Ambiently fostering SEI Charge transfer impedance Low temperature kinetics

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基于HPLC-Q-TOF MS的网络化技术对宁夏枸杞根皮的化学成分研究

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质谱学报 2022年第6期43卷 792-803,I0006页

作者：何春娴陈靖枝杨静玲李舂龙马晓莉南泽东江志波福州大学化学学院福建福州350108 北方民族大学化学与化学工程学院化工技术基础国家民委重点实验室宁夏银川750021 宁夏低品质资源高值化利用技术研发人才小高地宁夏银川750021

建立了高效液相色谱-四极杆-飞行时间质谱(HPLC-Q-TOF MS)法分析宁夏枸杞根皮的主要化学成分。采用Agilent ZORBAX Extend C18柱(250 mm×4.6 mm×5μm),以水(含10 mmol/L醋酸铵)-乙腈为流动相进行等度洗脱,流速1.0 mL/min,柱温30℃,进... 详细信息

建立了高效液相色谱-四极杆-飞行时间质谱(HPLC-Q-TOF MS)法分析宁夏枸杞根皮的主要化学成分。采用Agilent ZORBAX Extend C18柱(250 mm×4.6 mm×5μm),以水(含10 mmol/L醋酸铵)-乙腈为流动相进行等度洗脱,流速1.0 mL/min,柱温30℃,进样量5μL;电喷雾离子源正、负离子模式检测,质量扫描范围m/z 100~300和300~2000。利用数据转换软件将原始数据转换成mzXML格式,在GNPS上建立分子网络,并运用Cytoscape软件对结果进行可视化解读,结合文献数据推测化合物结构。通过手动检索发现了宁夏枸杞根皮中的21个化合物,与已报道的枸杞根皮中化合物一致。通过分子网络化聚类分析发现11个化合物,为地骨皮中首次报道,其中化合物24和25为新发现的环九肽类化合物。该方法可快速分析宁夏枸杞根皮的化学成分,为其质量控制奠定基础。

关键词：高效液相色谱-四极杆-飞行时间质谱(HPLC-Q-TOF MS) 宁夏枸杞根皮分子网络化

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铁镍合金纳米颗粒镶嵌的多级孔氮掺杂碳催化剂的制备及析氧性能研究

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化学学报 2019年第1期77卷 84-89页

作者：王艺霖王敏杰李静魏子栋重庆大学化学化工学院

非贵金属铁镍合金催化剂在析氧反应(OER)中性能优异,表现出取代贵金属RuO2催化剂的巨大潜力.以SiO2为大孔模板,多巴胺为氮碳源,Fe^3+,Ni^2+为金属源,通过原位吸附、聚合、焙烧、刻蚀等步骤制备得到铁镍合金纳米颗粒镶嵌的多级孔氮掺杂... 详细信息

非贵金属铁镍合金催化剂在析氧反应(OER)中性能优异,表现出取代贵金属RuO2催化剂的巨大潜力.以SiO2为大孔模板,多巴胺为氮碳源,Fe^3+,Ni^2+为金属源,通过原位吸附、聚合、焙烧、刻蚀等步骤制备得到铁镍合金纳米颗粒镶嵌的多级孔氮掺杂碳催化剂.碱性介质中的析氧反应测试表明,合金催化剂达到电流密度***^-2时过电位仅为286mV,显著低于以RuO2为催化剂的380mV过电位;同时经过2000圈循环伏安老化后活性几乎无衰减,稳定性高.所制备的合金催化剂具有两方面结构优势:(1)铁镍合金以及单质铁纳米颗粒镶嵌于大孔碳的薄层孔壁中,有利于暴露活性位点;(2)石墨化氮碳层对合金纳米颗粒的保护提高了材料抗腐蚀性,进而提升其稳定性.

关键词：多级孔氮掺杂碳铁镍合金析氧反应

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Enhancing the singlet oxygen capture and release rate of metal-organic frameworks through interpenetration tuning

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Chinese Chemical Letters 2023年第12期34卷 476-480页

作者： jing Hao Feifan Lang liqin Hao Yi Yang Lulu Zhang Hao Zhang Quan-Wen li Jiandong Pang Xian-He Bu College of chemistry State Key Laboratory of Elemento-Organic ChemistryNankai UniversityTianjin 300071China School of Materials Science and Engineering Smart Sensing Interdisciplinary Science CenterTianjin Key Laboratory of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin300350China Haihe laboratory of Sustainable Chemical Transformations Tianjin 300192China

Recognized as one of the important active species involved in varicus ractions,singlet oxygen(^(1)O_(2))shows potential applications in ***,and environmental related ***,the con-trolled capture and release of^(1)O_(2)are still facing huge challenges due to its short lifetime and high ***,a framework-interpenetration tuning strategy was applied on a metal-organic framework(MOF)that aiming to improve the capture and release rate of *** porosity of the MOF was remark-ably enhanced with the structural evolution from seven-fold(termed NKM-181)to six-fold interpene-tration(termed NKM-182),and the active anthracene sites became much mare *** drastic process can be achieved as simple as exchanging the primitive MOF in selected solvent and occurred surprisingly as single-crystal to single-crystal ***,additionally owing to the unblocked regular channels,NKM-182 shown significantly improved^(1)O_(2)trapping and releasing rates compared to strates an unprecedented regulation of^(1)O_(2)capture and release that of in *** work demon process,along with achieving the highest^(1)O_(2)capture and release rate among reported porous *** obtalned endoperoxides with^(1)O_(2)loaded(termed EPO-NKM-181 and EPO-NKM-182)can be used as a high efficiency smart material for anti-fake application.

关键词： Metal-organic framework Singlet oxygen capture and release Regulation Single-crystal to single-crystal transformation Anti-fake application

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Theoretical Studies on the Interactions of Cations with Diazine

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Chinese Journal of structural chemistry 2006年第11期25卷 1321-1330页

作者： CHEN Xing WU Wen-Peng ZHANG jing-Lai CAO Ze-Xing Institute of Fine chemistry and Engineering Henan University Kaifeng 475001 China Department of chemistry and state key laboratory for Physical Chemist~ of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China

Density functional theory and MP2 calculations have been used to determine the geometries, stabilities, binding energies, and dissociative properties of cation-diazine complexes M^n＋-C4H4N2 （M^n＋= li^＋, B^＋, Al^＋, Be^2＋, Mg^2＋, Ca^2＋）. The calculated results indicate that most complexes are stable except the π complexes of Ca^2＋-pyridazine, Ca^2＋-pyrazine, Al^＋-pyrimidine and Al^＋-pyrimidine. The a complexes are generally much more stable than their π counterparts. Among the π complexes, the cation-pyrazine π complexes have slightly higher stability. The nature of the ion-molecule interactions has been discussed by the natural bond orbital analysis and frontier molecular orbital interactions. In these a complexes, there is stronger covalent interaction between B^＋ and diazine. In the selected π complexes, B^＋ and Be^2＋ have stronger covalent interaction with diazine, while the other cations mainly have electrostatic interaction with diazine.

关键词： DFT and MP2 calculations cation-diazine complexes cation-molecule interactions

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Advances in preparation methods and mechanism analysis of layered double hydroxide for lithium-ion batteries and lithium-sulfur batteries

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Journal of Energy chemistry 2021年第7期30卷 472-499页

作者： Wen Yu Nanping Deng Kewei Cheng jing Yan Bowen Cheng Weimin Kang state key laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tiangong UniversityTianjin 300387China School of Textile Science and Engineering Tiangong UniversityTianjin 300387China

lithium-ion(li-ion) battery and lithium-sulfur(li-S) battery have attracted significant attention as promising components for large-scale energy storage because of high theoretical capacity of li,excellent energy density or environmental friendness for two kinds of ***,there still exist some respective obstacles for commercial applications,such as limited theoretical capacity,high cost and low conductivity of li-ion cells or shuttle effect of lithium polysulfides of li-S *** typical twodimensional materials,layered double hydroxides(LDHs) exhibit excellent potential in the field of energy storage due to facile tunability of composition,structure and morphology as well as convenient composite and strong catalytic ***,various LDHs toward novel separators or interlayers,cathodes,anodes,and interesting catalytic templates are researched to resolve these *** this review,the recent progress for LDHs applied in li-ion batteries and li-S batteries including the synthesis methods,designs and applications is presented and ***,the existing challenges and future perspectives associated with material designs and practical applications of LDHs for these two classes of cells are *** hope that the review can attract more attention and inspire more profound researches toward the LDH-based electrochemical materials for energy storage.

关键词： Layered double hydroxide Synthesis methods structural designs lithium-ion battery lithium-sulfur battery Electrochemical performances

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Pd/MgO:一种基于芳香羧酸脱羧与卤代芳烃的交叉偶联反应体系的可循环的多相催化剂(英文)

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化学学报 2014年第5期72卷 552-556页

作者：李召好陈静苏伟平洪茂椿洛阳师范学院化学化工学院 471022 中国科学院煤制乙二醇及相关技术重点实验室结构化学国家重点实验室中国科学院福建物质结构研究所福州350002

发展了钯多相催化剂Pd/MgO(0.5 mol%Pd)参与的芳基羧酸脱羧与卤代芳烃的偶联反应体系.在与溴代芳烃甚至氯代芳烃的偶联反应中,缺电子和富电子的芳基羧酸均能进行脱羧,并以高收率得到目标产物.该体系采用的负载型钯多相催化剂制备方法简... 详细信息

发展了钯多相催化剂Pd/MgO(0.5 mol%Pd)参与的芳基羧酸脱羧与卤代芳烃的偶联反应体系.在与溴代芳烃甚至氯代芳烃的偶联反应中,缺电子和富电子的芳基羧酸均能进行脱羧,并以高收率得到目标产物.该体系采用的负载型钯多相催化剂制备方法简单易行,可多次循环使用,能便捷地应用于脱羧偶联的有机合成反应.

关键词：钯脱羧芳基羧酸偶联多相催化

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Migration-Prevention Strategy to Fabricate Single-Atom Fe Implanted N-Doped Porous Carbons for Efficient Oxygen Reduction

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Research 2019年第1期2019卷 612-623页

作者： Dong-li Meng Chun-Hui Chen Jun-Dong Yi Qiao Wu Jun liang Yuan-Biao Huang Rong Cao state key laboratory of structural chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of the Chinese Academy of Sciences Beijing 100049China

It is highly desired but challenging to achieve highly active single-atom Fe sites from iron-based metal-organic frameworks(MOFs)for efcient oxygen reduction reaction(ORR)due to the easy aggregation of iron species and formation of the inactive Fe-based particles during ***,a facile migration-prevention strategy is developed involving the incorporation of polyaniline(PANI)into the pores of iron porphyrinic-based MOF PCN-224(Fe)and followed by pyrolysis to obtain the single-atom Fe implanted N-doped porous carbons material PANI@PCN-224(Fe)-*** introduced PANI inside the pores of PCN-224(Fe)not only served as protective fences to prevent the aggregation of the iron species during thermal annealing,but also acted as nitrogen sources to increase the nitrogen content and form Fe-Nx-C active *** with the pristine PCN-224(Fe)derived carbonization sample containing Fe-based particles,the carbonaceous material PANI@PCN-224(Fe)-900 without inactive Fe-based particles exhibited superb ORR electrocatalytic activity with a more positive half-wave potential,signifcantly improved stability in both alkaline media,and more challenging acidic *** migration-prevention strategy provides a new way to fabricate atomically dispersed metal active sites via pyrolysis approach for promoting catalysis.

关键词： prevention pyrolysis Oxygen

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联吡啶与五氟苯酚、五氟苯甲酸共晶弱相互作用的光谱解析与结构研究

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光谱学与光谱分析 2020年第5期40卷 1393-1396页

作者：何剑李爱森王晶徐抒平徐蔚青吉林大学超分子结构与材料重点实验室理论化学研究所吉林长春130012

五氟苯酚(PFP)、五氟苯甲酸(PFBA)与联吡啶(BP)利用溶剂缓慢挥发的方法制得BP/PFP和BP/PFBA两种共晶,并获得其晶体结构。结合密度泛函理论模拟对这两种共晶的红外和拉曼光谱进行解析。红外光谱证明两种共晶内部存在氢键作用。拉曼光谱表... 详细信息

五氟苯酚(PFP)、五氟苯甲酸(PFBA)与联吡啶(BP)利用溶剂缓慢挥发的方法制得BP/PFP和BP/PFBA两种共晶,并获得其晶体结构。结合密度泛函理论模拟对这两种共晶的红外和拉曼光谱进行解析。红外光谱证明两种共晶内部存在氢键作用。拉曼光谱表明BP/PFBA共晶内部的氢键强于BP/PFP。此外,结合红外、拉曼及晶体结构数据可知,在BP/PFP共晶中同时存在氢键和π-π相互作用。弱相互作用的差异导致其共晶的结构上的差异。该研究对进一步理解共晶结构和性质以及指导共晶设计具有一定的研究意义。

关键词：共晶红外拉曼氢键

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手性化合物结晶拆分用“量身定制”聚合物添加剂的高效制备

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高分子学报 2023年第10期54卷 1498-1508页

作者：李婧王兆旭叶曦翀宛新华北京分子科学国家研究中心、高分子化学与物理教育部重点实验室、北京大学化学与分子工程学院北京100871 山西浙大新材料与化工研究院太原030032 金属材料强度国家重点实验室、陕西省软物质国际联合研究中心、西安交通大学材料科学与工程学院西安710049

高分子型“量身定制”结晶抑制剂可以在较低添加量下获得出色的结晶拆分效果,但受限于传统“单体-高分子”冗长的合成路线,成本高,结构优化困难.前期工作中,我们发展了利用非共价相互作用模块化构筑添加剂的高效制备方法,通过聚(乙烯基... 详细信息

高分子型“量身定制”结晶抑制剂可以在较低添加量下获得出色的结晶拆分效果,但受限于传统“单体-高分子”冗长的合成路线,成本高,结构优化困难.前期工作中,我们发展了利用非共价相互作用模块化构筑添加剂的高效制备方法,通过聚(乙烯基吡啶)与多种酸性小分子的复合获得了一系列适合簇集晶体对映选择性结晶拆分的添加剂.为了拓展模块化构筑策略的适用范围,在本工作中,我们选择廉价易得的聚(对乙烯基苯磺酸)与不同碱性手性小分子化合物静电复合制备了一系列高分子型“量身定制”对映选择性结晶抑制剂,其在添加量低至0.5 mol%时仍可以接近10%的产率获得对映体过量值(enantiomeric excess,ee%)超过99%的天冬酰胺一水合物晶体.得益于操作简便的制备过程,实现了添加剂结构的快速筛选和高效优化.实验证明使用该方法制备的添加剂可以在水、甲醇、异丙醇、丙酮等溶剂中有效拆分多种氨基酸、降压药尼莫地平、止咳药愈创甘油醚、有机合成中间体氢化苯偶姻、1,4-苯并二烷甲酸甲酯等手性化合物.

关键词：结晶拆分量身定制对映选择性模块化制备手性药物

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