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多相催化与均相自由基反应在药物废物销毁中的协同作用:展望

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Chinese Journal of Catalysis 2024年第3期58卷 7-14页

作者： dmitry yu.Murzin 图尔库阿卡德米大学图尔库芬兰

人类生活大量使用药物,这些药物释放的有害成分不断进入环境,尤其是水系统中.然而,现有的传统水处理设施主要是为去除可生物降解的有机物和营养物质而设计的,对于药物和个人护理产品中的化学成分,由于它们的化学稳定性,这些处理设施往... 详细信息

人类生活大量使用药物,这些药物释放的有害成分不断进入环境,尤其是水系统中.然而,现有的传统水处理设施主要是为去除可生物降解的有机物和营养物质而设计的,对于药物和个人护理产品中的化学成分,由于它们的化学稳定性,这些处理设施往往难以有效地对其进行降解.为了应对这一挑战,需要采用更先进的技术.利用由臭氧产生的自由基的高级氧化过程,可以与多相催化技术结合,用于更有效地处理含有药物和个人护理产品的废水.从技术角度看,通过臭氧多相催化氧化技术去除水中药物应该在连续固定床反应器中完成.这种方法需要结构化的催化剂,并可以通过增材制造技术,如3D直接打印载体/催化剂,来制备.该技术为催化剂的组成和设计提供了很大的自由度,使其更适合于固定床多相-均相反应.此外,这些结构化材料可以表现出非周期性结构,如受自然启发的半有序结构.对于周期性和半周期性结构,可以使用计算流体动力学和流动成像方法研究其传热和传质过程,以指导新型结构的进一步设计,并与材料开发相结合,从而实现对活性和选择性的有效控制.在催化反应器工程方面,可以采用实验和数值模拟的研究方法,以探索不同阶段的氧化剂注入、反应器横截面大小的改变、催化剂床之间距离的调整以及循环回路的引入等因素对处理效果的影响.这些研究将有助于优化反应条件,提高处理效率,从而实现更有效地从水中去除药物和个人护理产品的目标.

关键词：反应工程臭氧氧化分子筛药物增材制造

A room-temperature magnetic semiconductor from a Co-Fe-Nb-B metallic glass

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Science China(Physics,Mechanics & Astronomy) 2023年第4期66卷 94-99页

作者： yu-Zhang Jiao dmitry VLouzguine-Luzgin Ke-Fu Yao Zheng-Jun Zhang Na Chen Laboratory for Advanced Materials Processing Technology(MOE) State Key Laboratory of New Ceramics and Fine ProcessingSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials(MOE) Schoolof Materials Science and EngineeringTsinghua UniversityBeijing 100084China Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai 980-8577Japan Mathematics for Advanced Materials-OIL National Institute of Advanced Industrial Science and Technology(AIST)Sendai 980-8577Japan

Magnetic semiconductors with Curie temperatures higher than room temperature show potential for developing spintronic devices with combined data processing and storage functions for next-generation computing *** this study,we present an n-type Co_(19.8)Fe_(8.6)Nb_(4.3)B_(6.0)O_(61.3) magnetic semiconductor with a high Curie temperature of~559 *** magnetic semiconductor has a room-temperature resistivity of~2.10×10^(4)Ωcm and a saturation magnetization of~76 emu/cm^(3).The n-type Co_(19.8)Fe_(8.6)Nb_(4.3)B_(6.0)O_(61.3)magnetic semiconductor was deposited on p-type silicon to form a heterojunction,exhibiting a rectifying *** results provide the design principles for discovering high Curie temperature magnetic semiconductors with determined conduction types,which would play an essential role in realizing nonvolatile spin-based transistors that break free from the confines of currently established Si-based information technology.

关键词： magnetic semiconductor ferromagnetic metallic glass high Curie temperature

Transformation of bio-derived acids into fuel-like alkanes via ketonic decarboxylation and hydrodeoxygenation： Design of multifunctional catalyst, kinetic and mechanistic aspects

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Journal of Energy Chemistry 2016年第2期25卷 206-222页

作者： Irina L.Simakova dmitry yu.Murzin Boreskov Institute of Catalysis Novosibirsk 630090 Russian Federation Novosibirsk State University Novosibirsk 630090 Russian Federation Abo Akademi University Turku FI-20500 Finland

The combination of a low cost source of Biofine＇s levulinic acid with available way of valeric acid synthesis opens up new opportunities for valeric acid as a promising bio-derived source for synthesis of valuable compounds for transportation sector. The present review illustrates the development of different approaches to one–pot synthesis of fuel-like alkanes from lignocellulose derived carboxylic acids where particular focus is given to valeric acid consecutive decarboxylative coupling（ketonization） and ketone hydrodeoxygenation in a single reactor over one catalyst bed. The key factors that influence the catalytic performance on both ketonization and hydrodeoxygenation steps as well as their cross-influence will be clarified to provide insights for the design of more efficient catalysts for the one-pot transformation. Valeric acid is considered as a potential acid source from viewpoint of cost effectiveness and feasibility of such transformation with reasonable alkane yield. The both reaction mechanisms and kinetics will also be discussed to understand deeply how the selective C–C coupling and following C=O hydrogenation can be achieved.

关键词： Carboxylic acids Ketonization Hydrodeoxygenation Alkane Biofuel

Performance of Pr_(2)(Ni,Cu)O_(4+δ) electrodes in protonic ceramic electrochemical cells with unseparated and separated gas spaces

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Journal of Materials Science & Technology 2021年第34期93卷 157-168页

作者： Artem P.Tarutin yulia G.Lyagaeva Aleksey I.Vylkov Maxim yu.Gorshkov Gennady K.Vdovin dmitry A.Medvedev Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature ElectrochemistryYekaterinburg 620137Russia Ural Federal University Yekaterinburg 620002Russia

The Ln_(2)NiO_(4+δ)-based layered phases have attracted much attention as components for high-performance protonic ceramic fuel cells(PCFCs)and electrolysis cells(PCECs)enabling energy conversion with good efficiency and low *** present paper aims at rationally engineering the Cu-doped Pr_(2)NiO_(4+δ)materials and analysing their electrode behaviour for reversible protonic ceramic cells operating in both PCFC and PCEC *** oxides of Pr_(2)Ni_(1-x)CuxO_(4+δ)(x=0,0.1,0.2 and 0.3)were synthesised using the citrate-nitrate *** obtained materials were characterised considering their crystalline structures,as well as thermal,thermomechanical and electrotransport properties.A special interest was focused on the quality of an electrode/electrolyte interface governing the electrochemical performance of the cells *** is shown that a copper doping of x=0.2 has a positive impact on the thermomechanical compatibility of the Ba(Ce,Zr)O_(3)-based electrolytes,providing a better adhesion to these electrolytes at low-temperature sintering and resulting in a decrease of the polarisation resistance of the air electrodes.A reversible protonic ceramic cell demonstrates a power density of~340 m W cm^(-2) and a hydrogen output flux of~3.8 ml cm^(-2) min^(-1) at 750℃.The presented results propose modernised alkaline-earth-element-free and cobalt-free electrodes that can be successfully used in the electrochemical cells based on the-state-of-the-art proton-conducting electrolytes.

关键词： rSOC Proton conductivity Cathode Cu-doping Thermal expansion Impedance spectroscopy

Renal artery denervation suppresses intractable ventricular arrhythmia in patients with left heart thrombosis

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Journal of Geriatric Cardiology 2017年第9期14卷 587-589页

作者： Marianna A Vander Petr A Fedotov Tamara A Lyubimtseva Maria A Bortsova Maria yu Simikova dmitry S Lebedev Evgeny N Mikhaylov Neuromodulation Unit Almazov National Medical Research Centre Saint-Petersburg Russia Arrhythmia Department Almazov National Medical Research Centre Saint-Petersburg Russia Heart Failure Department Almazov National Medical Research Centre Saint-Petersburg Russia

Transcutaneous renal artery denervation （RND） has beeninitially developed for destruction of efferent nerve fireswith luminal delivery of radiofrequency or ultrasonic energyaiming blood pressure reduction in patients with refractoryhypertension. However, other positive results of RNDwere described afterwards, and they include suppression ofatrial fibrillation and ventricular tachycardia （VT） storm.

关键词： Renal nerve denervation Sympathetic nerve activity Ventricular tachyarrhythmias

Genetic diversity and differentiation of pedunculate ( Quercus robur ) and sessile ( Q. petraea ) oaks

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Journal of Forestry Research 2020年第6期31卷 2445-2452页

作者： Girmantė Jurkšienė Oleg yuBaranov dmitry IKagan Olja A.Kovalevič-Razumova Virgilijus Baliuckas Forest Genetics and Tree Breeding Department Institute of ForestryLithuanian Research Centre for Agriculture and ForestryLiepųstr.1 Girionys53101 Kaunas DistrictLithuania Forest Research Institute of the National Academy of Sciences of Belarus Proletarskaja str.71246050 GomelRepublic of Belarus Institute of Forest Biology and Silviculture Vytautas Magnus University Agriculture AcademyStudentųstr.1153361 AkademijaKaunas DistrictLithuania

This study was conducted to determine the parent-off spring genetic structure of the pedunculate oak(Quercus robur L.),sessile oak(***[Matt.]Liebl.)and their *** half-sib Quercus families and their maternal trees originating from one tree stand in southern Lithuania were analyzed using SSR and RAPD *** on a preliminary study of leaf morphological traits,the individuals separated into six *** studied halfsib oak families were also compared for allelic diversity,including group variations;genotypic structure;genetic diversity;and the degree of genetic subdivision and diff *** level of genetic variation and subdivision was lower in the hybrid families than in the families of the parental *** analysis of the half-sibling off spring showed the asymmetric nature of interspecifi c hybridization processes of pedunculate and sessile oaks in mixed stands.

关键词： Half-sib families Interspecifi c oak hybrids Microsatellites Off spring Simple sequence repeats(SSRs) Randomly amplifi ed polymorphic DNA(RAPD)

Prins cyclisation of (-)-isopulegol with benzaldehyde over ZSM-5 based micro-mesoporous catalysts for production of pharmaceuticals

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Chinese Journal of Catalysis 2019年第11期40卷 1713-1720页

作者： Ekaterina Kholkina Paivi Maki-Arvela Chloe Lozachmeuer Roman Barakov Nataliya Shcherban dmitry yu. Murzin Johan Gadolin Process Chemistry Centre Faculty of Science and EngineeringAbo Akademi University Turku 20500 Finland L.V. Pisarzhevsky Institute of Physical Chemistry National Academy of Sciences of Ukraine 31 pr. Nauky Kiev 03028 Ukraine

Several ZSM-5 derived micro-mesoporous catalysts were investigated in Prins cyclisation of (-)-isopulegol with benzaldehyde acting as a reactant and a solvent for production of heterocyclic oxygen containing 2H-chromene derivatives including the tetrahydropyran structure and exhibiting biological activity. The investigated catalysts were characterized by nitrogen adsorption, ammonia temperature programmed desorption, adsorption-desorption of pyridine and 2,6-di-tert- butylpyridine with Fourier transform infrared spectroscopic control. For the Prins reaction performed at 70℃, the highest yield of the desired product, equal to 67% at complete conversion of (-)-isopulegol, was obtained over a micro-mesoporous catalyst containing an optimum amount of strong acid sites and mesopores, being 12 fold larger than the size of the desired product.

关键词： Micro-mesoporous material Prins cyclisation Tetrahydropyran

Phylogenetic relationship and variation of alarm call traits of populations of red-cheeked ground squirrels(Spermophilus erythrogenys sensu lato)suggest taxonomic delineation

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Integrative Zoology 2019年第4期14卷 341-353页

作者： Vera A.MATROSOVA Anastasia D.IVANOVA Elena V.VOLODINA Ilya A.VOLODIN dmitry yu.ALEXANDROV Olga V.SIBIRYAKOVA Oleg A.ERMAKOV Engelhardt Institute of Molecular Biology RASMoscowRussia Lomonosov Moscow State University MoscowRussia Moscow Zoo MoscowRussia Severtsov Institute of Ecology and Evolution RASMoscowRussia Department of Zoology and Ecology Penza State UniversityPenzaRussia

Distribution area and taxonomic borders within the species complex Spermophilus erythrogenys sensu lato remain *** evidence suggests that red-cheeked ground squirrels of Southeast Kazakhstan are remarkably different in terms of the acoustic structure of their alarm calls from the red-cheeked ground squirrels of the Kurgan region in *** this study,we analyzed the differences in the acoustic structure of the alarm call and mitochondrial DNA(complete control region,1005-1006 bp and complete cytochrome b gene,1140 bp)in 3 populations of red-cheeked ground squirrels(Tara,Altyn-Emel and Balkhash),all located within areas isolated by geographical barriers in Southeast *** found that the alarm call variables were similar between the 3 study populations and differed by the maximum fundamental frequency(8.46±0.75 kHz)from the values(5.62±0.06 kHz)reported for the red-cheeked ground squirrels from the Kurgan region of Rus*** in mtDNA control region was only 3%and variation in cytochrome b gene was only 2.5%.Phylogenetic trees based on cytochrome b gene polymorphism of 44 individuals from the study area and adjacent territories indicated 3 clades with high(98-100%)bootstrap support:“intermedius,”“brevicauda”and“iliensis”).We conclude that the 3 study populations in Southeast Kazakhstan belong to the clade intermedius and suggest a taxonomical revision of the species complex Spermophilus erythrogenys sensu lato,including analyses of nuclear DNA and alarm calls for populations of the brevicauda and iliensis clades.

关键词： alarm call control region cytochrome b mitochondrial DNA vocal communication

Bilayered semiconductor graphene nanostructures with periodically arranged hexagonal holes

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Nano Research 2015年第4期8卷 1250-1258页

作者： dmitry G. Kvashnin Peter Vancso Liubov yu. Antipina Geza I. Mark Laszlo P. Biro Pavel B. Sorokin Leonid A. Chernozatonskii Emanuel Institute of Biochemical Physics 4 Kosigina Street Moscow 119334 Russia Institute of Technical Physics and Materials Science Research Centre for Natural Sciences H- 1525 Budapest P.O. Box 49 Hungary Technological Institute of Superhard and Novel Carbon Materials 7a Centralnaya Street Troitsk Moscow 142190 Russia

We present a theoretical study of new nanostructures based on bilayered graphene with periodically arranged hexagonal holes （bilayered graphene antidots）. Our ab initio calculations show that fabrication of hexagonal holes in bigraphene leads to connection of the neighboring edges of the two graphene layers with formation of a hollow carbon nanostructure sheet which displays a wide range of electronic properties （from semiconductor to metallic）, depending on the size of the holes and the distance between them. The results were additionally supported by wave packet dynamical transport calculations based on the numerical solution of the time-dependent Schr/Sdinger equation.

关键词： gaphene antidots electronic properties DFT