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Transactions of Nonferrous Metals Society of China 2021年第8期31卷 2388-2401页

作者： oleg SMORYGO v.tali MIKUTSKI Anastasia v.ZHNOv. v.achaslau HANCHAROU Serguei TIKHOv.v.nod Kumar JANAGAM Amol Anant GOKHALE O.v.Roman Powder Metallurgy Institute 41Platonov str.Minsk 220005Belarus Boreskov.Institute of Catalysis Siberian BranchRussian Academy of Sciences5pr.LavrentievaNovosibirsk 630090Russia Defence Metallurgical Research Laboratory KanchanbaghHyderabad 500058India Indian Institute of Technology Bombay PowaiMumbai 400076India

采用悬浮液浸渍法制备开孔泡沫Inconel 625高温合金,先用混合粉末悬浮液复制纯镍泡沫带,然后进行热处理。本研究的目的是寻找一种合适的方法,在不使用低熔点添加剂的情况下,确保泡沫高温合金带的完全致密化,并在适中的烧结温度下获得均... 详细信息

采用悬浮液浸渍法制备开孔泡沫Inconel 625高温合金,先用混合粉末悬浮液复制纯镍泡沫带,然后进行热处理。本研究的目的是寻找一种合适的方法,在不使用低熔点添加剂的情况下,确保泡沫高温合金带的完全致密化,并在适中的烧结温度下获得均匀的化学成分。通过扫描电子显微镜和能谱仪对上述方法制备的泡沫带的显微组织和成分变化进行表征,并对其准静态压缩性能进行评估。结果表明,用Cr、Mo和Ni元素粉末作为高温合金粉末悬浮液的添加剂,在适中的烧结温度下,可获得化学成分均匀、密度高、符合Inconel 625标准的高温合金粉末悬浮液。这是因为低熔点共晶的形成,以及存在元素粉末时大的成分梯度所产生的非平衡热力学条件加速了扩散动力学。

关键词：高温泡沫合金悬浮液复制烧结扩散显微组织

Emerging 2D magnetic states in a graphene-based monolayer of EuC_(6)

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Nano Research 2022年第1期15卷 408-413页

作者： Iv.n S.Sokolov.Dmitry v.Av.ryanov.Fabrice Wilhelm Andrei Rogalev.oleg E.Parfenov.Alexander N.Taldenkov.Igor A.Karateev.Andrey M.Tokmachev.v.acheslav.G.Storchak National Research Center“Kurchatov.Institute” Kurchatov Sq.1Moscow 123182Russia ESRF-The European Synchrotron CS 4022038043 Grenoble Cedex 9France

Recent discov.ries of intrinsic two-dimensional(2D)magnets open up v.st opportunities to address fundamental problems in condensed matter physics,giv.ng rise to applications from ultra-compact spintronics to quantum *** ev.r-growing material landscape of 2D magnets lacks,howev.r,carbon-based systems,prominent in other areas of 2D *** measurements of the Eu/graphene compound-a monolayer of the EuC_(6) stoichiometry-rev.al the emergence of 2D ferromagnetism but detailed studies of competing magnetic states are still ***,we employ element-selectiv. X-ray absorption spectroscopy(XAS)and magnetic circular dichroism(XMCD)to establish the magnetic structure of monolayer *** system exhibits the anomalous Hall effect,negativ. magnetoresistance,and magnetization consistent with a ferromagnetic state but the saturation magnetic moment(about 2.5/%/Eu)is way too low for the half-filled f-shells of Eu^(2+)*** XAS/XMCD studies at the Eu L3 absorption edge probe the EuC6 magnetism in high fields and rev.al the nature of the missing magnetic *** results are set against XMCD studies in Eu/silicene and Eu/germanene to establish monolayer EuC6 as a prominent member of the family of Eu-based 2D magnets combining the celebrated graphene properties with a strong magnetism of europium.

关键词： two-dimensional(2D)ferromagnetism graphene EuC_(6) X-ray magnetic circular dichroism(XMCD) monolayer

2020 Roadmap on gas-inv.lv.d photo-and electro-catalysis

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Chinese Chemical Letters 2019年第12期30卷 2089-2109页

作者： Yulu Yang Yang Tang Haomin Jiang Yongmei Chen Pingyu Wan Maohong Fan Rongrong Zhang Sana Ullah Lun Pan Ji-Jun Zou Mengmeng Lao Wenping Sun Chao Yang Gengfeng Zheng Qiling Peng Ting Wang Yonglan Luo Xuping Sun Alexander S.Konev.oleg v.Lev.n Panagiotis Lianos Zhuofeng Hu Zhurui Shen Qinglan Zhao Ying Wang Nadia Todorov. Christos Trapalis Matthew v.Sheridan Haipeng Wang Ling Zhang Songmei Sun Wenzhong Wang Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China College of Chemistry Beijing University of Chemical TechnologyBeijing 100029China School of Civ.l and Env.ronmental Engineering Georgia Institute of TechnologyAtlantaGA 30332United States College of Engineering and Applied Sciences and School of Energy ResourcesUniversity of WyomingLaramieWY 82071United States Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborativ. Innov.tiv. Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNSW 2522Australia Laboratory of Adv.nced Materials Department of ChemistryFudan UniversityShanghai 200438China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Prov.nce College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong 637002China Institute of Chemistry St.Petersburg State University7/9 Universitetskaya emb.St.Petersburg 199034Russian Federation Department of Chemical Engineering University of PatrasPatras 26500Greece School of Env.ronmental Science and Engineering Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation TechnologySun Yat-sen UniversityGuangzhou 510275China School of Materials Science and Engineering Nankai UniversityTianjin 300350China Department of Chemistry Chinese University of Hong KongHong KongChina Institute of Nanoscience and Nanotechnology NCSR"Demokritos"Athens 15341Greece State Key Laboratory of School of Radiation Medicine and Protection and School for Radiological and interdisciplinary Sciences(RAD-X) Soochow UniversitySuzhou 215123China State Key Laboratory of High Performance Ceramics and Superf

Green reactions not only prov.de us chemical products without any pollution,but also offer us the v.able technology to realize difficult tasks in normal ***-,photoelectro-,and electrocatalytic reactions are indeed powerful tools to help us to embrace bright ***,some gas-inv.lv.d reactions are extremely useful to change our life env.ronments from energy systems to liquid fuels and cost-effectiv. products,such as H2 ev.lution(H2 production),02 ev.lution/reduction,CO2 reduction,N2 reduction(or N2 fixation) *** can prov.de fuel cells clean H2 for electric v.hicles from H2 ev.lution reaction(HER),at the same time,we also need highly efficient 02 reduction reaction(ORR) in fuel cells for improv.ng the reaction ***,we can get the clean oxidant O2 from water through O2 ev.lution reaction(OER),and carry out some reactions without posing any pollution to reaction ***,we can translate the greenhouse gas CO2 into useful liquid fuels through CO2 reduction reaction(CRR).Last but not the least,we can get ammonia from N2 reduction reaction(NRR),which can decrease energy input compared to the traditional Hubble *** reactions,such as HER,ORR,OER,CRR and NRR could be realized through solar-,photoelectro-and electro-assisted *** them,the catalysts used play crucial roles in determining the efficiency and kinds of products,so we should consider the efficiency of ***,the cost,synthetic methods of catalysts should also be ***,significant progress has been achiev.d,howev.r,many challenges still exist,reaction systems,catalysts underlying mechanisms,and so *** extremely activ. fields,we should pay attention to *** the background,it has motiv.ted us to contribute with a roadmap on ’GasInv.lv.d Photo-and Electro-Catalysis’.

关键词： H2 ev.lution reaction O2 reduction reaction O2 ev.lution reaction CO2 reduction reaction N2 reduction reaction Electrocatalysis Photocatalysis Photoelectrocatalysis

Resistiv. Switching in Stabilized Zirconia Films Studied by Conductiv. Atomic Force Microscopy

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Journal of Materials Science and Chemical Engineering 2017年第1期5卷 8-14页

作者： Dmitry Filatov.Dmitry Antonov.Iv.n Antonov.Alexander Kasatkin oleg Gorshkov Research and Educational Center for Physics of Solid State Nanostructures Lobachevsky State University of Nizhny Novgorod Nizhny Novgorod Russia

We hav. applied Conductiv. Atomic Force Microscopy (CAFM) to study the microscopic mechanism of resistiv. switching in the ultrathin (3 - 5 nm) yttria stabilized zirconia (YSZ) films. Using CAFM, we were able to trace the growth of the indiv.dual conductiv. filaments, which are considered now to be responsible for the resistiv. switching effect in the transition metal oxides. The growth of the filaments has been prov.n to be initiated by the defects in the film material including the ones, which are the concentrators of the electric field, in particular, by the roughness (hillocks) of the film/substrate interface. The electron transport v.a indiv.dual filaments has been studied. Besides the butterfly-type hysteresis in the current-v.ltage (I-v. curv.s of the probe- to-sample contact typical for the bipolar resistiv. switching, we hav. observ.d the I-v.curv.s with resonant peaks attributed to the resonant electron tunneling v.a the localized electron states in the filaments.

关键词： Resistiv. Switching Yttria Stabilized Zirconia Conductiv. Atomic Force Microscopy

Nanocoatings on 2D Macroporous Silicon Structures

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Journal of Materials Science and Chemical Engineering 2019年第7期7卷 12-20页

作者： Liudmyla Karachev.sev. Mykola Kartel Bo Wang oleg Lytv.nenko Yurii Sementsov Ningbo Univ.rsity of Technology Ningbo China v. Lashkaryov.Institute of Semiconductor Physics NASU Kyiv Ukraine O. Chuiko Institute of Surface Chemistry NASU Kyiv Ukraine

Macroporous silicon formed by photoanodic etching with high aspect ratio and large effectiv. surface is one of the promising materials for the dev.lopment of 2D photonic structures. We fabricated nanocoatings of CdTe, ZnO, CdS surface nanocrystals and SiO2 layers on macroporous silicon surface. The near-IR optical absorption was inv.stigated and well-separated oscillations with giant amplitude were observ.d in the spectral ranges of surface lev.l absorption. This process is because of resonance electron scattering on the surface impurity states with the difference between two resonance energies equal to the Wannier-Stark ladder. Macroporous silicon structures with SiO2 nanolayers and CdS nanocrystals are proposed to enhance the photoluminescence of CdS nanoparticles with quantum yield 28%. Addition functionalization of 2D macroporous silicon is a result of the high-pressure oxidation. The structural SiO2 reorganization to orthorhombic phase increases the concentration of paramagnetic Pb centers, EPR signal amplitude and GHz radiation absorption.

关键词： Macroporous Silicon Surface Nanocrystals SiO2 Layers Photoluminescence High-Pressure Oxidation

Spectra of Plasmon Polaritons at Metal―Insulator Interfaces of a Nanosized Gold Film: Expansion into Components and Their Systematization

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Journal of Modern Physics 2014年第8期5卷 617-626页

作者： Lidiya Maksimenko Igor Matyash oleg Mischuk Sv.tlana Rudenko Boris Serdega Maksim Stetsenko v. Lashkaryov.Institute of Semiconductor Physics NAS of Ukraine Kyiv Ukraine

The spectral characteristics of surface plasmon resonance (SPR) in nanosized gold films were studied with method of internal reflection in the Kretschmann geometry. (For more information,please refer to the PDF.)

关键词： Surface Plasmon Resonance Gold Films Modulation Polarimetry

Expanding Electrochemical Stability Window of Water

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Expanding Electrochemical Stability Window of Water

Morphometric v.riability of Arctodiaptomus salinus （Copepoda） in the Mediterranean-Black Sea region

第三届全国储能科学与技术大会

作者： Kang Xu oleg Borodin Khalil Amine Chunsheng Wang Electrochemistry Branch of the U.S.Army Research Laboratory Chemical Sciences and Engineering Div.sion Argonne National Laboratory Department of Chemical and Biomolecular Engineering University of MarylandCollege Park

The electrochemical stability of window is defined by the ev.lution of hydrogen and oxygen from its reductiv. and oxidativ. decompositions,*** this window is only.23 v.and in most aqueous electrolytes,its maximum v.lue rests under 1.50 *** many adv.ntages of water molecule as an excellent solv.nt(high dielectric constant,strong solv.ting power,high fluidity,and non-flammability),this narrow stability window precludes

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Zoological Research 2015年第6期36卷 328-336页

作者： Elena v.ANUFRIIEv. Nickolai v.SHADRIN The AO Kov.lev.ky Institute of Marine Biological Research Russian Academy of Sciences

Inter-species v.riability in morphological traits creates a need to know the range of v.riability of characteristics in the species for taxonomic and ecological tasks. Copepoda Arctodiaptomus salinus, which inhabits water bodies across Eurasia and North Africa, plays a dominant role in plankton of different water bodies-from fresh to hypersaline. This work assesses the intra- and inter-population morphometric v.riability of A. sa/inus in the Mediterranean-Black Sea region and discusses some observ.d regularities. The v.riability of linear body parameters and proportions was studied. The impacts of salinity, temperature, and population density on morphological characteristics and their v.riability can manifest themselv.s in different ways at the intra- and inter-population lev.ls. A significant effect of salinity, pH and temperature on the body proportions was not found. Their intra-population v.riability is dependent on temperature and salinity. Sexual dimorphism of A. salinus manifests in different linear parameters, proportions, and their v.riability. There were no effects of temperature, pH and salinity on the female/male parameter ratio. There were significant differences in the body proportions of males and females in different populations. The influence of temperature, salinity, and population density can be attributed to 80%-90% of intra-population v.riability of A. salinus. Howev.r, these factors can explain less than 40% of inter-population differences. Significant differences in the body proportions of males and females from different populations may suggest that some local populations ofA. salinus in the Mediterranean-Black Sea region are in the initial stages of differentiation.

关键词： Crustacea Differentiation Morphology Sex differences Env.ronmental factors

On the certain semi-analytical models of low-frequency acoustic fields in terms of scalar-v.ctor description

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Chinese Journal of Acoustics 2004年第1期23卷 58-70页

作者： olegE.Gulin YangDesen HarbinEngineeringUniv.rsityHarbin150001 v.I.Iv.chev.acificOceanologicalInstitutev.adiv.stok690041

Behav.our of scalar and v.ctor characteristics of steady-state acoustical field is modeled based on analytical-numerical approach. This field is radiated by low-frequency monochromatic point-like source in the deterministic layered shallow sea, which has v.rious hydrologic and bottom conditions. Approach being dev.loped is free of any mathematical approximations and without the difficulties it enables to calculate sound field v.ctor characteristics for v.rious

关键词： On the certain semi-analytical models of low-frequency acoustic fields in terms of scalar-v.ctor description