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Nano Research 2021年第11期14卷 3756-3772页

作者： Sami Ullah Xiaoqin Yang huy Q.Ta Maria hasan Alicja Bachmatiuk Klaudia Tokarska Barbara Trzebicka Lei Fu mark h.rummeli College of Energy Soochow Institute for Energy and Materials InnovationsKey Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou215006China School of Energy and Power Engineering Xi’an Jiaotong UniversityXi’an710049China Institute for Complex Materials IFW Dresden20 Helmholtz StrasseDresden01069Germany NUTECh School of Applied Sciences&Humanities and Computer Engineering DepartmentNational University of TechnologyIslamabad42000Pakistan Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie-Sklodowskiej 34Zabrze41-819Poland College of Chemistry and Molecular Science Wuhan UniversityWuhan430072China Institute of Environmental Technology VŠB-Technical University of Ostrava17.listopadu 15Ostrava70833Czech Republic

Graphene is a material with unique properties that can be exploited in electronics, catalysis, energy, and bio-related fields. Although, for maximal utilization of this material, high-quality graphene is required at both the growth process and after transfer of the graphene film to the application-compatible substrate. Chemical vapor deposition (CVD) is an important method for growing high-quality graphene on non-technological substrates (as, metal substrates, e.g., copper foil). Thus, there are also considerable efforts toward the efficient and non-damaging transfer of quality of graphene on to technologically relevant materials and systems. In this review article, a range of graphene current transfer techniques are reviewed from the standpoint of their impact on contamination control and structural integrity preservation of the as-produced graphene. In addition, their scalability, cost- and time-effectiveness are discussed. We summarize with a perspective on the transfer challenges, alternative options and future developments toward graphene technology.

关键词： high-quality transfer application-compatible substrate graphene technology

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Biomass Template Derived Boron/Oxygen Co-Doped Carbon Particles as Advanced Anodes for Potassium-Ion Batteries

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Energy & Environmental Materials 2022年第1期5卷 344-352页

作者： Xueyu Lian Zhongti Sun Qingqing Mei Yuyang Yi Junhua Zhou mark h.rummeli Jingyu Sun College of Energy Soochow Institute for Energy and Materials InnovationS(SIEMIS)Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China Department of Chemistry University of ManchesterManchester M139PLUK Leibniz Institute for Solid State and Materials Research Dresden P.O.Box 270116Dresden D-01171Germany Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie-Sklodowskiej 34Zabrze 41-819Poland Institute of Environmental Technology VSB-Technical University of Ostrava17.Listopadu 15Ostrava 70833Czech Republic Beijing Graphene Institute(BGI) Beijing 100095China

Among various anode candidates for potassium-ion batteries,carbonaceous materials have attracted significant attention due to their overwhelming advantages including cost-effectiveness and environmental ***,the inferior specific capacity and the sluggish reaction kinetics hinder the further development in this ***,we report biomass templated synthesis of boron/oxygen heteroatom co-doped carbon particles(BO-CPs)via direct plasma-enhanced chemical vapor *** the combined advantages of abundant active sites,large accessible surface area,and functional groups,BO-CP anode exhibits high reversible specific capacity(426.5 mAh g^(-1)at 0.1 A g^(-1))and excellent rate performance(166.5 mAh g^(-1)at 5 A g^(-1)).The K-ion storage mechanism is probed by operando Raman spectroscopy,ex situ X-ray photoelectron spectroscopy/electrochemical impedance spectroscopy,galvanostatic intermittent titration technique measurements,and theoretical *** synergistic effect of boron and oxygen co-doping greatly facilitates the performance of carbon-based anode,wherein boron dopant improves the conductivity of carbon framework and the oxygen dopant affords ample active sites and thus harvests additional specific *** work is anticipated to propel the development of high-performance anode materials for emerging energy storage devices.

关键词： anode B/O co-doping carbon high capacity potassium-ion batteries

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In-situ observations of novel single-atom thick 2D tin membranes embedded in graphene

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Nano Research 2021年第3期14卷 747-753页

作者： Xiaoqin Yang huy Q.Ta Wei Li Rafael G.Mendes Yu Liu Qitao Shi Sami Ullah Alicja Bachmatiuk Jinping Luo Lijun Liu Jin-ho Choi mark h.rummeli School of Energy and Power Engineering Xi’an Jiaotong UniversityNo.28Xianning West RoadXian710049China

There is ongoing research in freestanding single-atom thick elemental metal patches,including those suspended in a two-dimensional(2D)material,due to their utility in providing new structural and energetic insight into novel metallic 2D *** pores have shown promise as support systems for suspending such *** study explores the potential of Sn atoms to form freestanding stanene and/or Sn patches in graphene *** atoms were deposited on graphene,where they formed novel single-atom thick 2D planar clusters/patches(or membranes)ranging from 1 to 8 atoms within the graphene *** of three or more atoms adopted either a star-like or close-packed structural *** functional theory(DFT)calculations were conducted to look at the cluster configurations and energetics(without the graphene matrix)and were found to deviate from experimental observations for 2D patches larger than five *** was attributed to interfacial interactions between the graphene pore edges and Sn *** presented findings help advance the development of single-atom thick 2D elemental metal membranes.

关键词： in-situ transmission electron microscopy Sn atoms planar cluster graphene vacancy

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Direct synthesis of large-area Al-doped graphene by chemical vapor deposition:Advancing the substitutionally doped graphene family

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Nano Research 2022年第2期15卷 1310-1318页

作者： Sami Ullah Yu Liu Maria hasan Wenwen Zeng Qitao Shi Xiaoqin Yang Lei Fu huy Q.Ta Xueyu Lian Jingyu Sun Ruizhi Yang Lijun Liu mark h.rummeli College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow UniversitySuzhou 215006China NUTECh School of Applied Sciences&humanities and Computer Engineering Department National University of TechnologyIslamabad 42000Pakistan Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie-Sklodowskiej 34Zabrze 41-819Poland School of Energy and Power Engineering Xian Jiaotong UniversityXian 710049China College of Chemistry and Molecular Science Wuhan UniversityWuhan 430072China Institute for Complex Materials IFW Dresden 20 helmholtz Strasse Dresden 01069Germany Institute of Environmental Technology VSB-Technical University of Ostrava17.listopadu 15Ostrava 70833Czech Republic

Graphene doping continues to gather momentum because it enables graphene properties to be tuned,thereby affording new properties to,improve the performance of,and expand the application potential of *** can be chemically doped using various methods such as surface functionalization,hybrid composites(e.g.,nanoparticle decoration),and substitution doping,wherein C atoms are replaced by foreign ones in the graphene *** works have predicted that graphene could be substitutionally doped by aluminum(Al)atoms,which could hold promise for exciting applications,including hydrogen storage and evolution,and *** theoretical predictions suggest that Al substitutionally doped graphene(AIG)could serve as a material for gas sensors and the catalytic decomposition of undesirable ***,fabricating Al substitutionally doped graphene has proven challenging until ***,we demonstrate how controlled-flow chemical vapor deposition(CVD)implementing a simple solid precursor can yield high-quality and large-area monolayer AIG,and this synthesis is unequivocally confirmed using various characterization methods including local electron energy-loss spectroscopy(EELS).Detailed high-resolution transmission electron microscopy(hRTEM)shows numerous bonding configurations between the Al atoms and the graphene lattice,some of which are not theoretically ***,the produced AIG shows a CO_(2) capturability superior to those of other substitutionally doped graphenes.

关键词： aluminum-doped graphene single-solid precursor chemical vapor deposition carbon dioxide capture energy storage catalytic applications

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Enhanced performance of Si-based Li-ion batteries through elastic cushioning with hollow graphene shells

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Science China Materials 2022年第9期65卷 2343-2353页

作者： Qitao Shi Weibin Ye Klaudia Kurtyka haiming Wang Xueyu Lian huy Quang Ta Junhua Zhou Xiaoqin Yang Lingli Guo Barbara Trzebicka Jingyu Sun Lijun Liu Ming-Sheng Wang mark h.rummeli Soochow Institute for Energy and Materials Innovation College of EnergyKey Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China State Key Lab of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie-Sklodowskiej 34Zabrze 41-819Poland Institute for Complex Materials IFW DresdenDresden 01069Germany School of Energy and Power Engineering Xi’an Jiaotong UniversityXi’an 710049China Institute of Environmental Technology VSB-Technical University of Ostrava17.Listopadu 15Ostrava 70833Czech Republic

Silicon(Si)is a promising anode material for next-generation Li-ion *** nanometer-sized Si could alleviate the pulverization caused by large volume changes during deep ***,compression between agglomerated Si particles causes Si cracking and electrode *** this,we engineered a mechanical cushioning space between Si particles via elastic hollow graphene shells(GSs)to flexibly buffer volume changes and maintain the stability of the electrode *** stress generated from the Si volume expansion during lithiation was mechanically buffered and gently released by compression of the hollow space of the *** this Si/GS composite electrode,GS also reduced the local agglomeration of Si particles and effectively improved the overall *** these advantages,the designed Si/GS electrode showed an enhanced cycling performance with more than 1200 mA h g^(-1) at 0.8 A g^(-1) and an excellent rate capability of 1025 mA h g^(-1) at 4 A g^(-1) after 200 cycles.

关键词： Si/C composite electrode mechanical cushion elastic hollow GSs

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Applications of 2D-Layered Palladium Diselenide and Its van der Waals heterostructures in Electronics and Optoelectronics

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Nano-Micro Letters 2021年第9期13卷 292-343页

作者： Yanhao Wang Jinbo Pang Qilin Cheng Lin han Yufen Li Xue Meng Bergoi Ibarlucea hongbin Zhao Feng Yang haiyun Liu hong Liu Weijia Zhou Xiao Wang mark hrummeli Yu Zhang Gianaurelio Cuniberti Institute of Marine Science and Technology Shandong UniversityQingdao 266237People’s Republic of China College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006People’s Republic of China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow UniversitySuzhou 215006People’s Republic of China Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie Sklodowskiej 3441-819 ZabrzePoland Institute for Complex Materials IFW Dresden 20 Helmholtz Strasse01069 DresdenGermany Institute of Environmental Technology VŠB-Technical University of Ostrava 17.listopadu 15Ostrava 70833Czech Republic Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research(iAIR)University of JinanShandongJinan 250022People’s Republic of China State Key Laboratory of Crystal Materials Center of Bio and Micro/Nano Functional MaterialsShandong University27 Shandanan RoadJinan 250100People’s Republic of China Department of Chemistry Guangdong Provincial Key Laboratory of Catalytic ChemistrySouthern University of Science and TechnologyShenzhenGuangdong 518055People’s Republic of China State Key Laboratory of Advanced Materials for Smart Sensing GRINM Group Co.Ltd.Xinwai Street 2Beijing 100088People’s Republic of China Shenzhen Institutes of Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences1068 Xueyuan AvenueShenzhen University TownShenzhen 518055People’s Republic of China Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität Dresden01069 DresdenGermany Center for Advancing Electronics Dresden Technische Universität Dresden01069 DresdenGermany Dresden Center for Computational Materials Science Technische Universität Dresden01062 DresdenGermany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität Dresden01062 Dr

The rapid development of two-dimensional(2D)transition-metal dichalcogenides has been possible owing to their special structures and remarkable *** particular,palladium diselenide(PdSe_(2))with a novel pentagonal structure and unique physical characteristics have recently attracted extensive research ***,tremendous research progress has been achieved regarding the physics,chemistry,and electronics of PdSe_(2).Accordingly,in this review,we recapitulate and summarize the most recent research on PdSe_(2),including its structure,properties,synthesis,and ***,a mechanical exfoliation method to obtain PdSe_(2) nanosheets is introduced,and large-area synthesis strate-gies are explained with respect to chemical vapor deposition and metal ***,the electronic and optoelectronic properties of PdSe_(2) and related hetero-structures,such as field-effect transistors,photodetectors,sensors,and thermoelec-tric devices,are ***,the integration of systems into infrared image sensors on the basis of PdSe_(2) van der Waals heterostructures is ***,future opportunities are highlighted to serve as a general guide for physicists,chemists,materials scientists,and ***,this com-prehensive review may shed light on the research conducted by the 2D material community.

关键词： Palladium diselenide nTMDC Synthesis Field-effect transistors Photodetectors Sensors

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Design Improvements and Validation of a Novel Fully 3D Printed Analogue Lumbar Spine Motion Segment

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Journal of Bionic Engineering 2024年第3期21卷 1388-1396页

作者： Siril Teja Dukkipati mark Driscoll Musculoskeletal Biomechanics Research Lab Department of Mechanical EngineeringMcGill University845 Sherbrooke St.W(163)MontréalQCH3A 0C3Canada Orthopaedic Research Lab Montreal General Hospital1650 Cedar Ave(LS1.409)MontréalQCH3G 1A4Canada

Spine biomechanical testing methods in the past few decades have not evolved beyond employing either cadaveric studies or finite element modeling ***,both these approaches may have inherent cost and time *** studies are the present gold standard for spinal implant design and regulatory approval,but they introduce significant variability in measurements across patients,often requiring large sample *** element modeling demands considerable expertise and can be computationally expensive when complex geometry and material nonlinearity are *** analogue spine models could complement these traditional methods as a low-cost and high-fidelity alternative.A fully 3D printable L-S1 analogue spine model with ligaments is developed and validated in this *** stiffness of the model under pure bending loading in flexion-extension,Lateral Bending(LB)and Axial Rotation(AR)is evaluated and compared against historical ex vivo and in silico ***,the effect of interspinous,intertransverse ligaments and the Thoracolumbar Fascia(TLF)on spinal stiffness is evaluated by systematic construction of the *** flexion,model Range of Motion(ROM)was 12.92±0.11°(ex vivo:16.58°,in silico:12.96°)at *** LB,average ROM was 13.67±0.12°at 7.5 Nm(ex vivo:15.21±1.89°,in silico:15.49±0.23°).Similarly,in AR,average ROM was 17.69±2.12°at 7.5Nm(ex vivo:14.12±0.31°,in silico:15.91±0.28°).The addition of interspinous and intertransverse ligaments increased both flexion and LB stiffnesses by approximately 5%.Addition of TLF showed increase in flexion and AR stiffnesses by 29%and 24%,*** novel model can reproduce physiological ROMs with high repeatability and could be a useful open-source tool in spine biomechanics.

关键词： Lumbar spine 3D printing Intervertebral disc Biomechanical testing Spine mechanics

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The Wave Front Set Correspondence for Dual Pairs with One Member Compact

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Acta Mathematica Sinica,English Series 2024年第3期40卷 823-869页

作者： mark MCKEE Angela PASQUALE Tomasz PRZEBINDA hammond Lane ProvidenceUT 84332USA Universite de Lorraine CNRSIECLF-57000 MetzFrance Department of Mathematics University of OklahomaNormanOK 73019USA

Let W be a real symplectic space and(G,G')an irreducible dual pair in Sp(W),in the sense of howe,with G *** G be the preimage of G in the metaplectic group Sp(W).Given an irreducible unitary representation II of G that occurs in the restriction of the Weil representation to G,let On denote its *** prove that,for a suitable embedding T of Sp(W)in the space of tempered distributions on W,the distribution T(On)admits an asymptotic limit,and the limit is a nilpotent orbital *** an application,we compute the wave front set of II',the representation of G dual to II,by elementary means.

关键词： Reductive dual pairs howe duality Weil representation wave front set orbital integrals

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Analysis of the inflection points of height-diameter models

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Forest Ecosystems 2024年第4期11卷 414-422页

作者： Tzeng Yih Lam mark J.Ducey Department of Forest Resources Management Faculty of ForestryThe University of British Columbia2045-2424 Main MallVancouverBCV6T 1Z4 Canada Department of Natural Resources and the Environment University of New Hampshire114 James HallDurhamNH 03824USA

The inflection point is an important feature of sigmoidal height-diameter(h-D)*** is often cited as one of the properties favoring sigmoidal model ***,there are very few studies analyzing the inflection points of h-D *** goals of this study were to theoretically and empirically examine the behaviors of inflection points of six common h-D models with a regional *** six models were the Wykoff(WYK),Schumacher(SCh),Curtis(CUR),hossfeldⅣ(hOS),von Bertalanffy-Richards(VBR),and Gompertz(GPZ)*** models were first fitted in their base forms with tree species as random effects and were then expanded to include functional traits and spatial *** distributions of the estimated inflection points were similar between the two-parameter models WYK,SCh,and CUR,but were different between the threeparameter models hOS,VBR,and *** produced some of the largest inflection *** and VBR produced concave h-D curves without inflection points for 12.7%and 39.7%of the tree *** species or decreasing shade tolerance resulted in larger inflection *** trends in the estimated inflection points of hOS and VBR were entirely opposite across the ***,hOS could produce concave h-D curves for portions of the *** on the studied behaviors,the choice between two-parameter models may not *** recommend comparing seve ral three-parameter model forms for consistency in estimated inflection points before deciding on *** sigmoidal models to have inflection points does not necessarily mean that they will produce fitted curves with *** study highlights the need to integrate analysis of inflection points into modeling h-D relationships.

关键词： Concavity Forest inventory and analysis Generalized height-diameter models Growth functions height-diameter functions Mixed-effects modeling Points of inflection Species-specific models

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Rationale and design of Tenecteplase Reperfusion Therapy in Acute Ischaemic Cerebrovascular Events III (TRACE III): a randomised, phase III, open- label, controlled trial

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Stroke & Vascular Neurology 2024年第1期9卷 82-89页

作者： Yunyun Xiong Bruce C V Campbell Marc Fisher Lee h Schwamm mark Parsons hao Li Yuesong Pan Xia Meng Xingquan Zhao Yongjun Wang Neurology Beijing Tiantan HospitalBeijingChina China National Clinical Research Center for Neurological Diseases BeijingChina Department of Medicine and Neurology The University of MelbourneMelbourneVictoriaAustralia Neurology Beth Israel Deaconess Medical CenterBostonMassachusettsUSA Department of Neurology and Comprehensive Stroke Center Massachusetts General HospitalBostonMassachusettsUSA Department of Neurology University of New South Wales South Western Sydney Clinical SchoolLiverpoolNew South WalesAustralia

Background and purpose Recombinant human TNK tissue-type plasminogen activator(rhTNK-tPA)was not inferior to alteplase for ischaemic stroke within *** study aimed to investigate the efficacy and safety of rhTNK-tPA in patients who had an ischaemic stroke due to large vessel occlusion(LVO)of anterior circulation beyond *** and design Tenecteplase Reperfusion Therapy in Acute Ischaemic Cerebrovascular Events-III(TRACE III)is a multicentre,prospective,randomised,open-label,blind endpoint,controlled clinical *** who had an ischaemic stroke due to anterior circulation LVO(internal carotid artery,middle cerebral artery M1 and M2 segments)within 4.5–24hours from last known well(including wake-up stroke and no witness stroke)and with salvageable tissue(ischaemic core volumeh ratio≥1.8 and mismatch volume≥15mL)based on CT perfusion or MRI perfusion-weighted imaging(PWI)were included and randomised to rhTNK-tPA 0.25mg/kg(single bolus)to a maximum of 25mg or standard medical ***,we will exclude patients who are intended for direct *** will be followed up for 90 *** outcomes Primary efficacy outcome is modified Rankin Scale(mRS)score≤1 at 90 *** efficacy outcomes include ordinal distribution of mRS at 90 days,major neurological improvement defined by a decrease≥8 points compared with the initial deficit or a score≤1 on the National Institutes of health Stroke Scale(NIhSS)at 72 hours,mRS score≤2 at 90 days,the rate of improvement on Tmax>6s at 24 hours and NIhSS score change from baseline at *** outcomes are symptomatic intracerebral haemorrhage within 36 hours and mortality at 90 *** TRACE III will provide evidence for the efficacy and safety of rhTNK-tPA in patients who had an ischaemic strokes due to anterior circulation LVO beyond *** registration number NCT05141305.

关键词： Therapy random Rational

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