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Novel materials for solid oxide fuel cells cathodes and oxygen separation membranes:Fundamentals of oxygen transport and performance

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Carbon Resources Conversion 2020年第1期3卷 112-121页

作者： vladislav A.Sadykov Ekaterina M.Sadovskaya Nikita F.Eremeev Elena Yu.Pikalova Nina M.Bogdanovich Elena A.Filonova Tamara A.Krieger Yulia E.Fedorova alexey v.Krasnov Pavel I.Skriabin Anton I.Lukashevich Robert Steinberger-Wilckens Izaak C.vinke Federal Research Center Boreskov Institute of Catalysis SB RAS 630090 NovosibirskRussia Novosibirsk State University 630090 NovosibirskRussia Institute of High Temperature Electrochemistry UB RAS 620137 YekaterinburgRussia Ural Federal University 620002 YekaterinburgRussia University of Birmingham EdgbastonBirmingham B152TTUK Forschungszentrum Jülich GmbH 52425 JülichGermany

In the field of modern hydrogen energy,obtaining pure hydrogen and syngas and then being able to use them for green energy production are significant *** solid oxide fuel cells(SOFC)and catalytic membranes for oxygen separation as well as materials for these devices is one of the most likely ways to solve these *** this work,the authors’recent studies in this field are reviewed;the fundamentals of developing materials for SOFC cathodes and oxygen separation membranes’permselective layers based on research of their oxygen mobility and surface reactivity are ***-Popper phases Ln_(2-x)Ca_(x)NiO_(4+δ)(LnCNO)and perovskite-fluorite nanocomposites PrNi_(0.5)Co_(0.5)O_(3-δ)-Ce_(0.9)Y_(0.1)O_(2-δ)(PNC-YDC)were studied by isotope exchange of oxygen with C_(18)O_(2)and^(18)O_(2)in flow and closed *** LnCNO a high oxygen mobility was shown(D*~10^(-7)cm^(2)/s at 700℃),being provided by the cooperative mechanism of oxygen migration involving both regular and highly-mobile interstitial *** PNC-YDC dominated a wide fast diffusion channel via fluorite phase and interphases due to features of the redistribution of cations resulting in superior oxygen mobility(D*~10^(-8)cm^(2)/s at 700℃).After optimization of composition and nanodomain structure of these materials,as cathodes of SOFC they provided a high power density,while for asymmetric supported oxygen separation membranes-a high oxygen permeability.

关键词： Solid oxide fuel cells Oxygen separation membranes Oxygen mobility Perovskites Nanocomposites Ruddlesden-Popper phases

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俄罗斯治理变革与绩效

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复旦公共行政评论 2017年第2期 25-45页

作者： alexey G.Barabashev Andrey v.Klimenko 闻静俄罗斯国立高等经济大学复旦大学国际关系与公共事务学院

本文分析俄罗斯公共治理体系的两个方面,即公务员制度改革和行政改革。本文从俄罗斯公共治理体系研究的角度考察这两项改革的主要历史阶段;也揭示俄罗斯治理改革中的主要行动者以及政府—市场关系。文章聚焦总结一些俄罗斯复杂而相互联... 详细信息

本文分析俄罗斯公共治理体系的两个方面,即公务员制度改革和行政改革。本文从俄罗斯公共治理体系研究的角度考察这两项改革的主要历史阶段;也揭示俄罗斯治理改革中的主要行动者以及政府—市场关系。文章聚焦总结一些俄罗斯复杂而相互联系的治理行政机制的主要特征,并对俄罗斯治理改革的一些主要内容进行描述,包括公务员组织方面的改革、执行机构的职能和结构优化、结果导向的管理机制的实施以及监管体系的改进、公共服务提供、一站式服务流程和电子政务等。

关键词：公共治理公务员制度改革行政改革公共服务绩效管理

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Molecular Dynamics Simulations of Perovskites: The Effect of Potential Function Representation on Equilibrium Structural Properties

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Open Journal of Physical Chemistry 2015年第4期5卷 110-121页

作者： Kholmirzo T. Kholmurodov Sagille A. Ibragimova Pavel P. Gladishev Anatoly v. vannikov alexey R. Tameev Tatyana Yu. Zelenyak Frank Laboratory of Neutron Physics JINR Dubna Russia Dubna International University Dubna Russia A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Moscow Russia

The perovskites with general formula ABX3 have been widely used as for materials with their unique properties (ferroelectric, piezoelectric, dielectric, catalytic and so on). Hybrid organolead halide perovskites are a class of semiconductors with ABX3 (X = Cl, Br, and I) structures consisting of lead cations in 6-fold coordination (B site), surrounded by an octahedron of halide anions (X site, face centered) together with the organic components in 12-fold cub octahedral coordination. These hybrid perovskites have a direct band gap, a large absorption coefficient as well as high charge carrier mobility that represent a very attractive characteristic of cost-effective solar cells. Basically, these crystals are inorganic solids of CaTiO3 type held together by bonds that are either ionic or partially ionic and partially covalent. In spite of the partially covalent character of the Ti-O bond, the system is modeled by a two-body central force interatomic potential (the form of the vashishta and Rahman interatomic potential), which has been used successfully for many materials with a perovskite structure. In the present work using molecular dynamics (MD) simulation method we investigate the dynamical and structural behavior of CaTiO3 perovskite at normal pressure and temperature conditions. The MD calculations were performed on a system of 16,000 particles (3200Ca + 3200Ti + 96,00O), initially in an orthorhombic-Pbnm structure. The orthorhombic MD box had edges Lx = 53.4 Å, Ly = 53.4 Å and Lz = 61.12 Å, which provided a density matching the experimental value of ρ = 4 g/cm3. Starting with this structure and using proposed interatomic potentials the MD system stabilizes at room temperature in its initial configuration. The aim of the present study to explore the effect of potential function representations on structural equilibrium properties for the perovskite models including hybrid halide ones outlined above. Concerning the perovskite equilibrium state we

关键词： Perovskites Halides Potential Functions Structural Properties MD Simulations

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Effects of Agrobacterial<i>rol</i>-Genes on the Thermodynamic and Structural Features of Starches Extracted from Potato Microtubers

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Food and Nutrition Sciences 2014年第3期5卷 250-257页

作者： Luybov A. Wasserman Nina P. Aksenova Tatiyana N. Konstantinova Lidiya I. Sergeeva Svetlana A. Golyanovskaya alexey v. Krivandin Georgy A. Romanov Emmanuel Institute of Biochemical Physics Russian Academy of Sciences Moscow Russia imiryazev Institute of Plant Physi- ology Russian Academy of Sciences Moscow Russia Timiryazev Institute of Plant Physi- ology Russian Academy of Sciences Moscow Russia Timiryazev Institute of Plant Physi- ology Russian Academy of Sciences Moscow Russia Laboratory of Plant Physiology Wageningen University Wageningen The Netherlands.

Wild-type potato (Solanum tuberosum L.) plants and their transformants harboring agrobacterial rolB or rolC genes under control of the patatin class I promoter were cultured in vitro. These plants were used as a source of single-node stem cuttings. The structure of native starch in tubers formed on cuttings was determined using methods of X-ray scattering and differential scanning microcalorimetry (DSC). It was found that in starch from tubers of rolB plants the melting temperature of crystalline lamella was lower and their thickness was less than that in wild-type potato. In tubers of rolC plants starch differed from starch in wild-type plants by a higher melting temperature, reduced melting enthalpy, and a greater thickness of crystalline lamellae. The melting of starch from tubers of rolC plants proceeded as the melting of two independent crystalline structures with melting temperatures of 338.0°K and 342.8°K. Overall data show that starches of different structure can be obtained by using transgenic approach.

关键词： Solanum tuberosum Transgenic Potato Starch rol Genes Tubers Crystalline Lamellae Melting Temperature

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动态组合化学

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世界科学 2001年第12期 17-18页

作者： Jean-Marie Lehn ,alexey v.Eliseev ,李红霞

尽管动态组合化学 (DCC)研究起步伊始 ,但在寻找与特定生物和非生物靶分子键合的物质方面已经表现出其潜在的发展前景

关键词：动态组合化学键合物质生物靶分子动态库生物聚合物

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Gas-Phase Conversion of the U(vI), Sr, Mo, and Zr Oxides in Nitrating Atmosphere

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Journal of Applied Mathematics and Physics 2016年第8期4卷 1475-1481页

作者： Sergey A. Kulyukhin Yurii M. Nevoin Natalya A. Konovalova Andrey v. Gordeev alexey A. Bessonov Margarita P. Gorbacheva Andrey Yu. Shadrin Konstantin N. Dvoeglazov Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Moscow Russia Open Joint-Stock Company vNIINM Moscow Russia

The gas-phase conversion of U3O8, MoO3, SrO, and their mechanical mixtures, and also of ZrO2 into water-soluble compounds in the atmosphere of (NOx + vapor H2O) or HNO3 (vapor) was studied. In the course of gas-phase conversion, U3O8 and SrO transform into water-soluble compounds (nitrates, hydroxonitrates), whereas MoO3 and ZrO2 undergo no changes. The principal possibility of separating U from Mo and Zr by gas-phase conversion of the oxides in the atmosphere of (NOx + vapor H2O) or HNO3 (vapor) was demonstrated.

关键词： Metal Oxides Nitrates Gas-Phase Conversion Nitrogen Oxides

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Nanostructured Metal Aggregate-Assisted Lasing in Rhodamine 6G Solutions

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Optics and Photonics Journal 2013年第8期3卷 13-17页

作者： valery A. Donchenko Yuri E. Geints vladimir A. Kharenkov alexey A. Zemlyanov 1Siberian Physico-Technical Institute Tomsk Russia 2Tomsk State University Tomsk Russia 1Siberian Physico-Technical Institute Tomsk Russia 2V.E. Zuev Institute of Atmospheric Optics SB RAS Tomsk Russia Siberian Physico-Technical Institute Tomsk Russia

We report on the experimental demonstration of considerable lowering of stimulated luminescence (lasing) threshold in R6G laser dye solution doped with metal agglomerates (Ag, Al, Ni) upon second harmonic of Nd:YAG-laser illumination. Due to strong structural coupling between individual nanoparticles, they may form fractal agglomerates providing an extreme optical pump-field enhancement near their complicated surface. For the first time, we have observed more than twofold increase in lasing efficiency of metal aggregated dye solution as compared to non-agglomerated monomeric metal nanocolloids. No random laser manifestation or surface plasmon-polariton resonances excitations were observed.

关键词： Nano-Composite Luminescence Lasing Metal Agglomerate Surface Plasmon-Polariton Resonance

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Hierarchy of mesenchymal stem cells: Comparison of multipotentmesenchymal stromal cells with fibroblast colony forming units

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Journal of Biomedical Science and Engineering 2013年第8期6卷 66-73页

作者： Irina N. Shipounova Natalia A. Petinati alexey E. Bigildeev Natalia v. Sats Nina J. Drize Larisa A. Kuzmina Elena N. Parovichnikova valery G. Savchenko Bone Marrow Transplantation Department FGBI National Hematological Scientific Center Moscow Russia Laboratory for Physiology of Hematopoiesis FGBI National Hematological Scientific Center Moscow Russia

The organization of the compartment of mesenchymal stem cells is still obscure. Two types of human stromal precursor cells are known. Both of them are analyzed in in vitro system: mesenchymal multipotent stromal cells (MMSC) and fibroblast colony forming units (CFU-F). The aim of this study was to compare the main characteristics of MMSC and CFU-F derived from the bone marrow of 24 healthy donors. Growth and differentiation parameters, as well as relative expression levels of different genes were analyzed in MMSC and CFU-F. MMSC were cultivated for 5 passages. CFU-F concentration was determined for each bone marrow sample. The data obtained demonstrated the heterogeneity and hierarchical organization of both studied populations of stromal precursor cells-MMSC and CFU-F. These two types of stromal precursor cells turned to be different in most parameters studied. Altogether MMSC seemed to be more immature cells than CFU-F and took up the higher position in hierarchical tree of mesenchymal stem cells. The rate of differentiation and proliferative potential decreased with the donor’s age in both populations MMSC and CFU-F.

关键词： Mesenchymal Multipotent Stromal Cells (MMSC) Fibroblast Colony Forming Units (CFU-F) Real-Time Polymerase Chain Reaction Gene Expression Level Aging

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The Effects of Nanodiamonds at the Action of Colored Metal Ions on the Skin of Guinea Pigs

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Journal of Biomaterials and Nanobiotechnology 2016年第4期7卷 214-224页

作者： Ekaterina Yu. vasilyeva victor I. Prokhorenkov alexey P. Puzyr vladimir S. Bondar Krasnoyarsk State Medical University Named Prof. v.F. voyno-Yasenetsky Krasnoyarsk Russia Institute of Biophysics SB RAS Krasnoyarsk Russia

The protective effect of modified nanodiamonds (MND) under the action of cobalt and nickel ions on the skin of Guinea pigs was shown. At the action of chromium ions on the skin of animals, the protective effect of MND was not found. The differences are related to different adsorption properties of MND to the investigated colored metal ions. It is shown in vitro that MND can adsorb ions of cobalt and nickel and don’t bind ions of chromium from aqueous medium. The perspectives using of MND as a new drug for the prevention allergic dermatitis caused by action of bivalent ions of metals are discussed.

关键词： Nanodiamonds Allergic Contact Dermatitis Colored Metal Ions Clinical-Morphological Study

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镉对生命活动的毒作用机制

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环境与职业医学 2018年第5期35卷 460-470页

作者： alexey A.TINKOv Olga P.AJSUvAKOvA Jan AASETH Yordanka G.GLUHCHEvA Juliana M.IvANOvA Geir BJФRKLUND Margarita G.SKALNAYA Oksana A.SKALNAYA 黄百粲林雪 Anatoly v.SKALNY 国立雅罗斯拉夫大学俄罗斯雅罗斯拉夫150003 俄罗斯科学院细胞与细包共生研究所俄罗斯奥伦堡460001 RUDN大学俄罗斯莫斯科117198 国立奥伦堡教育大学俄罗斯奥伦堡460000 黑得马克应用科学大学挪威艾佛伦2411 英兰德信托医院研究部挪威布鲁门达2380 保加利亚科学院实验形态学、病理学与人类学学院暨博物馆保加利亚索非亚1113 索非亚大学医学系保加利亚索非亚1113 营养与环境医学咨议会挪威莫伊拉娜8602 台湾大学中国台湾10617 台北医学大学万芳医院职业医学科中国台湾10675 湖南农业大学动物科学技术学院湖南长沙410128 联合国教科文组织微量元素研究所法国里昂69000 国立奥伦堡大学俄罗斯奥伦堡460000

镉是一种众所周知的环境毒物,对人体健康有重大危害。镉与众多疾病相关,例如癌症、神经退化性疾病和代谢综合征等。虽然疾病种类各异,但是都与镉的化学性质和毒作用机制有关。镉易与含硫氮功能基结合,从而取代金属酶内的必需元素锌。镉... 详细信息

镉是一种众所周知的环境毒物,对人体健康有重大危害。镉与众多疾病相关,例如癌症、神经退化性疾病和代谢综合征等。虽然疾病种类各异,但是都与镉的化学性质和毒作用机制有关。镉易与含硫氮功能基结合,从而取代金属酶内的必需元素锌。镉的促炎症效应伴随促炎因子[肿瘤坏死因子(TNF-α)、白介素(IL)-1、IL-6]的大量产生和抗炎因子(IL-1拮抗剂、IL-4、IL-6、IL-10、IL-13)的明显减少,并且镉的促炎症活性与其通过各种途径所诱导的氧化应激紧密相关。镉还能取代各种蛋白质内的铁铜原子,从而增加自由氧化还原反应的活性金属库,激活芬顿(Fenton)反应;反之,镉对电子传递链的抑制损害了对氧气的利用,增加了活性氧的产生。最后,镉对抗氧化酶的抑制加剧自由基对核酸等生物大分子的损伤,引起遗传毒性并改变基因调控。因此,干扰镉的毒作用机制是预防镉暴露不良健康效应的有效措施。

关键词：镉氧化应激毒性炎症遗传毒性

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