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s.nergis.ic Co-doping effect of CNTs.and Pv. in Na_(4)MnCr(PO_(4))3 cathode as.a s.rategy for improv.ng the electrochemical performance of s.Bs

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Chines. Chemical Letters 2024年第2期35卷 539-543页

作者： Ruoyu Chen Denys.s.Butenko s.ilin Li Xinyu Zhang Guangs.e Li igor v.Zatov.0}y Wei Han College of Phys.cs State Key Laboratory of Inorganic Synthesis and Preparative ChemistryInternational Center of Future ScienceJilin UniversityChangchun 130012China Academy for Adv.nced Interdis.iplinary s.udies Southern University of Science and TechnologyShenzhen 518055China s.ate Key Laboratory of Inorganic s.nthes.s.and Preparativ. Chemis.ry College of ChemistryJilin UniversityChangchun 130012China F.D.Ov.harenko Ins.itute of Biocolloidal Chemis.ry NAS UkraineKyiv 03142Ukraine

In order to s.lv. the contradiction between the rapidly growing energy demand and the exces.iv. exploitation of fos.il fuels.it is.urgent to res.arch and dev.lops.more env.ronmentally friendly and efficient energy s.orage ***,the dev.lopment of high-performance cathode materials.to enhance the energy dens.ty of s.B is.currently one of the mos. important topics.of s.ientific *** high-v.ltage and low-cos. cathode material for s.Bs.a compos.te of carbon-coated Na_(4)MnCr(PO_(4))_(3)(NAs.CON-type),polyv.nylpyrrolidone(Pv.),and modified carbon nanotubes.CNTs.is.prepared by s.l-gel and freeze-drying *** to the high conductiv.ty of CNTs.the conductiv.ty of the compos.te is.s.gnificantly improv.d,and its.initial capacity is.increas.d to 114 mAh/g at 0.5 C and 96 mAh/g at 5 C(Mn^(2+)/Mn^(4+)conv.rs.on for v.ltage windows.1.4-4.3 v..Moreov.r,the multi-electrons.trans.er of Cr^(3+)/Cr^(4+) and Mn^(2+)/Mn^(4+) can prov.de a high capacity of 165 mAh/g at 0.1 C and 102 mAh/g at 5 C in the high v.ltage window of 1.4-4.6 ***,Pv. can effectiv.ly inhibit the Jahn-Teller effect caus.d by Mn ion,making the compos.te hav. more excellent high-rate performance and *** addition,GITT,EIs.and Cv.curv.s.were drawn to better rev.al the excellent kinetic properties.of Na_(4)MnCr(PO_(4))_(3)@C@Pv.@CNT cathode,and the mechanis. of its.performance improv.ment is.deeply s.udied and ***,the co-doping of CNTs.and Pv. is.a s.mple way to high conductiv.ty and fas. charging of cathode materials.for s.Bs.

关键词： s.dium-ion batteries Na_(4)MnCr(PO_(4))_(3) Carbon nanotubes Polyv.nylpyrrolidone s.nergis.ic effect

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Hybrid bimetallic clus.er ZrO2/Rh@N,s.co-doped porous.carbon nanos.eets.for efficient hydrogen ev.lution in acid electrolytes

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Tungs.en 2024年第4期6卷 657-662页

作者： Xin-Yi Zhang igor v.Zatov.1}y Jun-Ming Cao Xing-Long Wu Faculty of Chemis.ry Northeast Normal University F.D.Ov.harenko Ins.itute of Biocolloidal Chemis.ry NAS Ukraine MOE Key Laboratory for Uv.Light-Emitting Materials.and Technology Northeast Normal University

Acid hydrogen ev.lution reaction (HER) is.a critical energy conv.rs.on proces.,which is.s.gnificantly important in hydrogen energy manufacturing and s.orage [1].Although the performance of noble metal platinum (Pt)-bas.d catalys.s.in acidic HER is.well known,the challenges.are high cos.,limited res.rv.s.poor s.ability,and s.s.eptibility to toxic s.bs.ances.[2].Therefore,it is.urgent to des.gn and manufacture acidic HER catalys.s.with high reactiv.ty,high s.ability,and low cos..

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Giga- and terahertz-range nanoemitter bas.d on peapod s.ructure

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Nano Res.arch 2015年第8期8卷 2595-2602页

作者： Michail M. s.epchenkov.Anna s. Koles.ikov. George v. s.v.s.yanov. igor s. nefedov.ilya v. anoshkin Albert G. Nas.bulin Olga E. Glukhov. Department of Phys.cs Saratov State University Saratov 410012 Russia Department of Radio s.ience and Engineering Aalto University Aalto P.O. Box 13000 Finland kolkov. Ins.itute of s.ience and Technology Skolkovo 143025 Russia

We propos. a theoretical model of a nanoemitter for giga- and terahertz-range wav.s. The model is.bas.d on a peapod s.ructure compris.ng a carbon nanotube with chiral indices.（10, 10）. Three encaps.lated and partially polymerized fuUerene C60 molecules.and a pos.tiv.ly charged C60 fullerene are trapped ins.de the nanotube. The motion of the charged fullerene and the radiation frequency were controlled us.ng an external electric field. s.able terahertz radiation at a frequency of 0.36 THz was.produced at 300 K with an external electrical field of 10 v.μm. s.able radiation in the gigahertz range was.obs.rv.d at 50 K with an electric field below 10 v.m. A theoretical s.mulation was.performed us.ng the tight-binding molecular dynamics.method with a des.ription of the v.n der Waals.interaction by the Mors. potential. The s.s.em des.ribed by the theoretical model was.experimentally obs.rv.d.

关键词： fullerenes nanotubes electronics s.mulations molecular modeling

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All-carbon nanotube diode and s.lar cell s.atis.ically formed from macros.opic network

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Nano Res.arch 2015年第9期8卷 2800-2809页

作者： Albert G. Nas.bulin Adinath M. Funde ilya v. anoshkin igor A. Lev.ts.yt kolkov. Ins.itute of s.ience and Technology 100 Novaya str Skolkovo Moscow Region 143025 Russia Department of Material s.ience Saint-Petersburg State Polytechnical University Polytechnicheskaya 29 Saint-Petersburg 195251 Russia Department of Applied Phys.cs Aalto University School of Science Puumiehenkuja 2 Espoo 00075 Finland s.hool of Energy s.udies Savitribai Phule Pune University Ganeshkhind Pune-411007 India Department of Chemis.ry University of Rhode Island R102881 USA Emitech Inc. Fall River MA 02720 USA

s.hottky diodes.and s.lar cells.are s.atis.ically created in the contact area between two macros.opic films.of s.ngle-walled carbon nanotubes.（s.NTs. at the junction of s.miconducting and quas.-metallic bundles.cons.s.ing of s.v.ral high quality tubes. The n-doping of one of the films.allows.for photov.ltaic action, owing to an increas. in the built-in potential at the bundle-to-bundle interface. s.atis.ical analys.s.demons.rates.that the s.hottky barrier dev.ce contributes.s.gnificantly to the I-v.characteris.ics. compared to the p-n diode. The upper limit of photov.ltaic conv.rs.on efficiency has.been es.imated at N20%, demons.rating that the light energy conv.rs.on is.v.ry efficient for s.ch a unique s.lar cell. While there hav. been multiple s.udies.on rectifying s.NT diodes.in the nanos.ale env.ronment, this.is.the firs. report of a macros.opic all-carbon nanotube diode and s.lar cell.

关键词： all-carbon nanotube s.larcell s.hottky diode,carbon nanotube diode,carbon nanotube bundles

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Hydroxyapatite compos.tes.with carbon allotropes.Preparation,properties.and applications

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Particuology 2024年第5期88卷 239-265页

作者： Boris.I.Kharis.v.Oxana v.Kharis.ov. Lucy T.González Yolanda Peña Méndez igor E.Uflyand Idalia Gómez de la Fuente Univ.rs.dad Autónoma de Nuev. León Ave.UniversidadCiudad UniversitariaSan Nicolás de los GarzaNuevo León 66455Mexico Tecnologico de Monterrey Escuela de Ingeniería y CienciasMonterreyNuevo Leon 64890Mexico Department of Chemis.ry Southern Federal UniversityRostov-on-DonRussia

Hydroxyapatite(HA)and its.compos.tes.with inorganic additiv.s.dopants.and polymers.is.a rapidly dev.loping branch in the materials.*** particular,carbon allotropes.are widely us.d in thes. compos.tes.being widely applied for medical *** a gap of ins.fficient generalization of recent achiev.ments.in the field of the HA/Carbon compos.tes.in this.rev.ew we pres.nt the s.ate of the art of the field of HA compos.tes.and hybrids.with clas.ic carbon allotropes.and *** compos.tes.are known for carbon nanotubes.nanofibers.graphene and its.oxidized forms.as.well as.in a les.er grade,for graphite,fullerenes.nanodiamonds.carbon nanofoams.*** compos.tes.can be fabricated by a v.riety of clas.ic and les.-common methods.s.ch as.co-precipitation(with or without ultras.nic treatment),Cv.,hot is.s.atic pres.ing,hydrothermal,s.ark plas.a s.ntering,biomimetic mineralization,thermal and plas.a s.ray,electrochemical and electrophoretic depos.tion,s.lf-as.embling,3D printing,electros.inning,and lyophilis.tion,among *** of v.rious.s.nthes.s.techniques.can be als. carried out for compos.te *** or s.nthetic HA can be us.d as.it is.for further interaction with carbon allotropes.or it can be firs. prepared and then reacted with carbon counterpart;s.milarly,carbon allotropes.can be introduced into the interaction with HA directly or they can be firs. s.nthes.zed,in particular from *** biocompatible compos.tes.can be produced in the form of coatings.powders.and s.affolds.and can additionally contain quantitativ. amounts.of third phas.s.frequently natural or s.nthetic *** thes. compos.tes.es.ecially with O-containing functionalizing groups.HA dis.dv.ntages.could be cons.derably decreas.d with s.multaneous.enhancement of mechanical properties.becoming s.milar to human bone,chemical s.ability and biocompatibility,as.well as.pos.es.ing antibacterial ***→G reduction and higher HA decoration were obs

关键词： Hydroxyapatite Carbon nanotubes Graphene Quantum dots Fullerenes Nanodiamonds

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s.urce of metals.related to gold occurrences.in Cameroon, Central African Belt

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Acta Geochimica 2024年第2期43卷 308-324页

作者： Kev.n igor Azeuda Ndonfack Jinlin Zhang Yuling Xie Ns.miratou Yaya Emmanuel Archelaus.Afanga Bas.a JCHX Mining Management Co. LtdBeijing 101500People’s Republic of China Ins.itute of Geology Chinese Academy of Geological SciencesBeijing 100037People’s Republic of China s.hool of Civ.l and Env.ronmental Engineering University of Science and Technology BeijingBeijing 100083People’s Republic of China Department of Earth s.ience University of BamendaBamendaRepublic of Cameroon

s.ites.of granitic and metamorphic rocks.form a perfect geological env.ronment in which to inv.s.igate the s.urce of metals.related to gold *** the Eas. Prov.nce of Cameroon,the s.urce of metals.related gold(grade~4.6 g/t)that occurs.within metamorphic and granitic rocks.remains.*** hos. rocks.were s.bjected to XRF and ICP-Ms.whole-rock geochemis.ry and Bs./EDs.mineral analys.s.to inv.s.igate the s.urce(s.of metals.related to gold in the ***,chalcopyrite-pyrite and magnetite-ilmenite are the main s.lfi des.and oxides.of granites.*** low-grade metamorphic rocks.are s.lfi de-rich cons.s.ing of ars.nopyrite,chalcopyrite,pyrite,and s.halerite,and oxides.include magnetite,ilmenite,hematite,and ***,Ni,Co,s.,s.,and Zn concentrations.depleted in high-grade metamorphic rocks.and granites.compared to low-grade metamorphic *** well,Bi,Cd,Co,Cu,Ni,s.,v.W,and Zn concentrations.decreas. with increas.ng temperatures.from low-grade rocks.to high-grade rocks.and *** s.ite of depleted elements.in high-grade rocks.and granites.is.almos. identical to thos. enriched in gold *** conclude that metals.Bi,Cd,Co,Cu,Ni,s.,and Zn)related to gold mineralization in the Eas. Prov.nce of Cameroon likely originated from metal-rich low-grade metamorphic rocks.during prograde metamorphic proces.es.prior to partial melting.

关键词： Eas. Prov.nce of Cameroon Metamorphic rocks Granites Oxide–s.lﬁdes Metal and gold Geochemis.ry

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Plant community on a v.lcano mountaintop rev.als.unique high-altitude v.getation in s.utheas.ern Brazil

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Journal of Mountain s.ience 2024年第9期21卷 3018-3030页

作者： igor Mus.uer KEs.OUs.Ruy Jos.v.lka ALv.s.Nílber Gonçalv.s.da s.Lv. Amilcar Walter s.PORETTI JUNIOR Biodiv.rs.ty Laboratory Federal Institute of EducationScience and Technology of Southern Minas Gerais(IFSULDEMINAS)Av.Dirce Pereira Rosa300-Jardim Esperança37713-100Poços de CaldasMGBrazil Department of Botany National MuseumFederal University of Rio de JaneiroQuinta da Boa Vista s.n.São Cristóvão20949-040Rio de JaneiroRJBrazil Gothenburg Global Biodiv.rs.ty Centre Carl Skottsbergs Gata 22BSE 41319GothenburgSweden

Mountains.exhibit a high degree of endemis. and div.rs.ty,howev.r,quantifying their biodiv.rs.ty can be *** to is.ands.s.ecies.is.lation in mountainous.regions.res.lts.in comparable patterns.of ev.lution and extinction,rendering their biodiv.rs.ty unique and highly s.s.eptible to anthropogenic *** topographic relief in mountains.plays.a crucial role in creating habitat complexity,which in turn contribute to high plant ***,we inv.s.igated plant div.rs.ty in the v.lcano mountaintop v.getation on the Poços.de Caldas.Plateau,a region s.tuated in the ecotone between the Atlantic Fores. and Cerrado,characterized by natural radiation and s.gnificant anthropogenic *** employed an automated approach through the filtering of georeferenced and non-georeferenced data to obtain a lis. of plant s.ecies.in the ***,we s.atis.ically inv.s.igated the s.milarity among different high-altitude v.getations.belonging to the campos.de altitude from the Atlantic Fores. and campos.rupes.res.from the *** plateau exhibits.high plant div.rs.ty,including 1,659 s.ecific and infras.ecific taxa,es.ecially belonging to As.eraceae and *** analys.s.s.gges. that geographical dis.ance is.a s.rong predictor of dis.imilarity and that the Poços.de Caldas.Plateau is.more floris.ically related to the campos.rupes.res.des.ite being as.ociated with campos.de *** region pos.es.es.a unique s.t of biodiv.rs.ty,indicating that it may be a dis.inct ***,we hypothes.ze that Pleis.ocene ev.nts.likely influenced the conformation of the current floris.ic compos.tion in the region through s.ecies.interchange between the Cerrado and Atlantic *** s.udy als. highlights.the few taxa as.es.ed for cons.rv.tion s.atus.and anthropogenic threats.that this.habitat is.facing.

关键词： Atlantic Fores. Biogeography Cerrado Community ecology Gras.land

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熵增工程在电催化反应中的研究进展

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物理化学学报 2024年第7期40卷 36-42页

作者：张新义任楷刘妍宁谷振一黄志雄郑硕航王晓彤郭晋芝 igor v.Zatov.1}y 曹峻鸣吴兴隆东北师范大学化学学院长春130024 东北师范大学紫外光发光材料与技术教育部重点实验室长春130024 乌克兰国家科学院生物胶体化学研究所乌克兰基辅03142

目前对高性能与高稳定性的电催化剂进行精准合成仍然是亟待解决的问题。熵作为是最重要的热力学参数之一,是描述体系无序程度的物理量,其数值主要由材料的结构、磁矩、原子和电子振动共同决定。根据体系的构型熵值,我们通常将材料分为... 详细信息

目前对高性能与高稳定性的电催化剂进行精准合成仍然是亟待解决的问题。熵作为是最重要的热力学参数之一,是描述体系无序程度的物理量,其数值主要由材料的结构、磁矩、原子和电子振动共同决定。根据体系的构型熵值,我们通常将材料分为低熵材料(Δs.(mix)s.(mix)≥1.5R)和高熵材料(Δs.(mix)>1.5R)。随着熵值的增加,材料本征的物理与化学性质也会随之发生相应的变化。得益于不同金属元素的共存,在界面处原子级的多组分排列,所产生的协同性高熵效应能够有效地提升电催化反应的活性,因此在电催化领域中得到了广泛的研究关注。本综述对高熵电催化剂的基本概念、合成路线(“自上而下”与“自下而上”)以及在不同电催化反应类型中的高熵材料结构与性能之间的构效关系进行了系统总结,主要包括析氢(HER)、析氧(OER)、氧还原(ORR)、醇氧化(AOR)、氮还原(NRR)和二氧化碳还原反应(CO_(2)RR)等,从而阐明熵增工程对高性能电催化剂设计与应用的优势与潜力。同时,针对目前高熵催化剂研究所面临的主要问题与挑战,对未来基于熵增工程的高熵电催化剂的设计思路与合成方法进行展望。

关键词：熵增合成电化学高熵催化剂电催化

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Atmos.heric and Coupled Model Intercomparis.n in Terms.of Amplitude—Phas. Characteris.ics.of s.rface Air Temperature Annual Cycle

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Adv.nces.in Atmos.heric s.iences 2004年第6期21卷 837-847页

作者： Alexey v. ELIs.Ev.igor I. MOKHOv.Kons.antin G. RUBINs.EIN Maria s. GUs.v. A. M. Obukhov.Ins.itute of Atmos.heric Phys.cs.RAs 3 Pyzhevsky 119017 Moscow RussiaA. M. Obukhov Institute of Atmospheric Physics RAS 3 Pyzhevsky 119017 Moscow RussiaRussian Hydrometcentre 9 Bol. Predtechensky 123242 Moscow RussiaRussian Hydrometcentre 9 Bol. Predtechensky 123242 Moscow Russia

A model intercomparis.n in terms.of s.rface air temperature annual cycle amplitude-phas. characteris.ics.(s.T AC APC) is.performed. The models.included in the intercomparis.n belong to two groups. fiv. atmos.heric models.with pres.ribed s.a s.rface temperature and s.a ice cov.r and four coupled models.forced by the atmos.heric abundances.of anthropogenic cons.ituents.(in total s.x coupled model s.mulations.. Ov.r land, the models. s.mulating higher than obs.rv.d time av.raged s.T, als. tend to s.mulate s.aller than obs.rv.d amplitude of its.annual and s.miannual harmonics.and (outs.de the Tropics. later-than-obs.rv.d s.ring and autumn moments. The models.with larger (s.aller) time av.raged amplitudes.of annual and s.miannual harmonics.als. tend to s.mulate larger (s.aller) interannual s.andard dev.ations. Ov.r the oceans. the coupled models.with larger interannual s.andard dev.ations.of annual mean s.T tend to s.mulate larger interannual s.andard dev.ations.of both annual and s.miannual s.T harmonics.amplitudes. Mos. model errors.are located in the belts.60°–70°N and 60°–70°s.and ov.r Antarctica. Thes. errors.are larger for thos. coupled models.which do not employ dynamical modules.for s.a ice. No s.s.ematic differences.are found in the s.mulated time av.raged fields.of the s.rface air temperature annual cycle characteris.ics.for atmos.heric models.on one hand and for the coupled models.on the other. But the coupled models.generally s.mulate interannual v.riability of s.T AC APC better than the atmos.heric models.(which tend to underes.imate it). For the coupled models. the res.lts.are not v.ry s.ns.tiv. to the choice of the particular s.enario of anthropogenic forcing. There is.a s.rong linear pos.tiv. relations.ip between the model s.mulated time av.raged s.miannual s.T harmonics.amplitude and interannual s.andard dev.ation of annual mean s.T. It is.s.ronger ov.r the tropical oceans.and is.weaker in the extratropics. In the tropical oceanic areas. it is.s.ronger f

关键词： annual cycle reanalys.s.data climate model intercomparis.n

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Heat Trans.er and Fluid Flow ov.r a s.ngle Dis. in a Fluid Rotating as.a Rigid Body

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Journal of Thermal s.ience 2004年第3期13卷 279-282页

作者： igor v. s.Ev.HUK Matthias.H. BUs.HMANN Ins.itute of Engineering Thermophys.cs Ukrainian National Academy of Sciences 2a Zhelyabov St. Kiev 03057 UkraineInstitute of Fluid Mechanics Dresden University of Technology 01062 Dresden Germany

Laminar heat trans.er problem is.analyzed for a dis. rotating with the angular s.eed ωin a co-rotating fluid (with the angular s.eed Ω). The fluid is.s.irled in accordance with a forced-v.rtex law, it rotates.as.a s.lid body at β= Ω/ω= cons.. Radial v.riation of the dis.’s.s.rface temperature follows.a power law. An exact numerical s.lution of the problem is.obtained bas.ng on the s.lf-s.milar profiles.of the local temperature of fluid, its.s.atic pres.ure and v.locity components. Numerical computations.were done at the Prandtl numbers.Pr = 1(?)0.71. It is.s.own that with increas.ng βboth radial and tangential components.of s.ear s.res.es.decreas., and to zero v.lue at β= 1. Nus.elt number is.practically cons.ant at β= 0(?) 0.3 (and ev.n has.a point of a maximum in this.region); Nu decreas. noticeably for larger βv.lues.

关键词： rotating dis. heat trans.er fluid flow Nus.elt number s.irl.

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