检索结果-南通市图书馆

Plasma-based CO_(2) conversion:How to correctly analyze the performance?

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2023年第11期86卷 180-196,I0005页

作者： Bart Wanten Rani Vertongen Robin De Meyer Annemie Bogaerts Research Group PLASMANT Department of ChemistryUniversity of AntwerpUniversiteitsplein 12610 AntwerpBelgium Research group emat Department of PhysicsUniversity of AntwerpGroenenborgerlaan 1712020 AntwerpBelgium

Plasma-based CO_(2)conversion is promising for carbon capture and ***,inconsistent reporting of the performance metrics makes it difficult to compare plasma processes systematically,complicates elucidating the underlying mechanisms and compromises further development of this ***,this critical review summarizes the correct definitions for gas conversion in plasma reactors and highlights common errors and inconsistencies observed throughout *** is done for pure CO_(2)splitting,dry reforming of methane and CO_(2)*** demonstrate that the change in volumetric flow rate is a critical aspect,inherent to these reactions,that is often not correctly taken into *** dry reforming of methane and CO_(2)hydrogenation,we also demonstrate inconsistent reporting of energy efficiency,and through numerical examples,we show the significance of these ***,we discuss how to measure changes in volumetric flow rate,supported by data from two experimental examples,showing that the sensitivity inherent to a standard component and a flow meter is essential to consider when deriving the performance ***,some general recommendations and good practices are *** paper aims to be a comprehensive guideline for authors,to encourage more consistent calculations and stimulate the further development of this technology.

关键词： Plasma CO_(2) Dry reforming of methane CO_(2) hydrogenation Conversion Performance

Enhanced Electrical Properties of Bi_(2−x)Sb_(x)Te_(3) Nanoflake Thin Films Through Interface Engineering

在线全文

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2024年第6期7卷 359-366页

作者： Xudong Wu Junjie Ding Wenjun Cui Weixiao Lin Zefan Xue Zhi Yang Jiahui Liu Xiaolei Nie Wanting Zhu Gustaaf Van Tendeloo Xiahan Sang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China NRC(Nanostructure Research Centre) Wuhan University of TechnologyWuhan 430070China emat(Electron Microscopy for Materials Science) University of AntwerpGroenenborgerlaan 171Antwerp 2023Belgium

The structure–property relationship at interfaces is difficult to probe for thermoelectric materials with a complex interfacial *** thermoelectric materials with a simple,structurally-uniform interface provides a facile way to understand how these interfaces influence the transport ***,we synthesized Bi_(2−x)Sb_(x)Te_(3)(x=0,0.1,0.2,0.4)nanoflakes using a hydrothermal method,and prepared Bi_(2−x)Sb_(x)Te_(3) thin films with predominantly(0001)interfaces by stacking the nanoflakes through spin *** influence of the annealing temperature and Sb content on the(0001)interface structure was systematically investigated at atomic scale using aberration-corrected scanning transmission electron *** and Sb doping facilitate atom diffusion and migration between adjacent nanoflakes along the(0001)*** such it enhances interfacial connectivity and improves the electrical transport *** reactions create new interfaces that increase the scattering and the Seebeck *** to the simultaneous optimization of electrical conductivity and Seebeck coefficient,the maximum power factor of the Bi_(1.8)Sb_(0.2)Te_(3) nanoflake films reaches 1.72 mW m^(−1)K^(−2),which is 43%higher than that of a pure Bi_(2)Te_(3) thin film.

关键词： Bi_(2)Te_(3) nanoflakes interface engineering scanning transmission electron microscopy thermoelectric thin film

Experimental reconstructions of 3D atomic structures from electron microscopy images using a Bayesian genetic algorithm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

npj Computational Materials 2022年第1期8卷 2076-2083页

作者： Annick De Backer Sandra Van Aert Christel Faes Ece Arslan Irmak Peter DNellist Lewys Jones emat University of AntwerpGroenenborgerlaan 1712020AntwerpBelgium NANOlab Center of Excellence University of AntwerpGroenenborgerlaan 1712020AntwerpBelgium I-BioStat Data Science InstituteHasselt UniversityHasseltBelgium Department of Materials University of OxfordParks RoadOX13PHOxfordUK Advanced Microscopy Laboratory Centre for Research on Adaptive Nanostructures and Nanodevices(CRANN)Dublin 2Ireland School of Physics Trinity College DublinThe University of DublinDublin 2Ireland

We introduce a Bayesian genetic algorithm for reconstructing atomic models of monotype crystalline nanoparticles from a single projection using Z-contrast *** number of atoms in a projected atomic column obtained from annular dark field scanning transmission electron microscopy images serves as an input for the initial three-dimensional *** algorithm minimizes the energy of the structure while utilizing a priori information about the finite precision of the atom-counting results and neighbor-mass *** results show promising prospects for obtaining reliable reconstructions of beam-sensitive nanoparticles during dynamical processes from images acquired with sufficiently low incident electron doses.

关键词： algorithm atomic utilizing

ZrO_2—膨化石墨/焦炭复合材料的结构和制备（英文）

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

新型炭材料 2010年第4期25卷 255-260页

作者： Ivan M. Afanasov Gustaaf Van Tendeloo Andrei T. Matveev Chemistry department Moscow State University Moscow 119991 Russia emat University of Antwerp Antwerp B-2020 Belgium Institute for New Carbon Materials and Technologies Moscow 119991 Russia

运用两种不同技法制备了ZrO2纳米粒子改性的膨化石墨/焦炭复合材料,应用XRD、SEM和TEM对所得ZrO2改性炭材料进行了表征。技法1:在ZrO(NO3)2及NH4OH溶液中反复交替地浸渍低密度膨化石墨/焦炭块体,随后在1200℃氮氛中热处理,以使在炭块自... 详细信息

运用两种不同技法制备了ZrO2纳米粒子改性的膨化石墨/焦炭复合材料,应用XRD、SEM和TEM对所得ZrO2改性炭材料进行了表征。技法1:在ZrO(NO3)2及NH4OH溶液中反复交替地浸渍低密度膨化石墨/焦炭块体,随后在1200℃氮氛中热处理,以使在炭块自由表面沉积ZrO2纳米粒子的薄层。技法2:将可膨胀石墨、酚醛树脂粉和ZrOC2O4—改性的纤维素纤维混合物封装于一容器中,使之经受900℃热激震,随后在氮氛中1200℃热处理,获得改性复合材料。结果表明:复合材料中ZrO2纳米粒子呈现三种尺寸:6nm^30nm为单独的纳米粒子和小微粒;200nm^1000nm为长树突状结构物;1μm^40μm为形如纤维素前驱体的杆状物。

关键词：膨化石墨焦炭 ZrO_2 复合材料

Role of autophagy in the pathophysiology of nonalcoholic fatty liver disease:A controversial issue

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第23期20卷 7325-7338页

作者： Wilhelmus J Kwanten Wim Martinet Peter P Michielsen Sven M Francque Laboratory of Experimental Medicine and Paediatrics University of Antwerp2000 AntwerpProvince of AntwerpBelgium Laboratory of Physiopharmacology University of Antwerp2000 AntwerpProvince of AntwerpBelgium Department of Gastroenterology Hepatology Antwerp University HospitalB-2650 EdegemProvince of AntwerpBelgium

Autophagy is a mechanism involved in cellular homeostasis under basal and stressed conditions delivering cytoplasmic content to the lysosomes for degradation to *** potential role of autophagy in disease is increasingly recognised and investigated in the last *** it is commonly accepted that autophagy plays a role in the hepatic lipid ***,dysfunction of autophagy may be an underlying cause of non-alcoholic fatty liver ***,controversy of the exact role of autophagy in the lipid metabolism exists:some publications report a lipolytic function of autophagy,whereas others claim a lipogenic *** review aims to give an update of the present knowledge on autophagy in the hepatic lipid metabolism,hepatic insulin resistance,steatohepatitis and hepatic fibrogenesis.

关键词： Non-alcoholic fatty liver disease Non-alcoholic fatty liver disease Steatohepatitis Non-alcoholic steatohepatitis Autophagy Lipophagy Lipid metabolism

Special Issue on future directions in plasma nanoscience

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2019年第2期13卷 199-200页

作者： Erik C.Neyts Department of Chemistry University of Antwerp2610 AntwerpBelgium

Over the past 20 years,plasma nanoscience has become a mature and vibrant *** deals with both the fundamental science and applications of low-temperature plasmas,ion beams,lasers,and related approaches and how this relates to the fabrication,synthesis,modification,and integration in and of nanoscale materials,structures and functional *** complexity often encountered in research in this field intrinsically calls for both fundamental and applied research,both experimental and *** nanoscience,therefore,is a highly multidisciplinary field,bringing together researchers from physics,chemistry,medicine,engineering,biochemistry,informatics and more.

关键词： Special Issue future directions plasma nanoscience

Plasma for cancer treatment: How can RONS penetrate through the cell membrane? Answers from computer modeling

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2019年第2期13卷 253-263页

作者： Annemie Bogaerts Maksudbek Yusupov Jamoliddin Razzokov Jonas Van der Paal Research group PLASMANT Department of ChemistryUniversity of AntwerpBE-2610 Antwerp-WilrijkBelgium

Plasma is gaining increasing interest for cancer treatment, but the underlying mechanisms are not yet fully understood. Using computer simulations at the molecular level, we try to gain better insight in how plasma-generated reactive oxygen and nitrogen species (RONS) can penetrate through the cell membrane. Specifically, we compare the permeability of various (hydrophilic and hydrophobic) RONS across both oxidized and nonoxidized cell membranes. We also study pore formation, and how it is hampered by higher concentrations of cholesterol in the cell membrane, and we illustrate the much higher permeability of H2O2 through aquaporin channels. Both mechanisms may explain the selective cytotoxic effect of plasma towards cancer cells. Finally, we also discuss the synergistic effect of plasma-induced oxidation and electric fields towards pore formation.

关键词： plasma medicine cancer treatment computer modelling cell membrane reactive oxygen and nitrogen species

Different Routes to the Pore Engineering of Spherical MCM-41

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Wuhan university of Technology(Materials Science) 2003年第2期18卷 1-5页

作者：刘世权 E F Vansant university of antwerp (Belgium)

Different routes,including the replacements of the template,addition of pore expander and hydrothermal post-synthesis treatment have been used for the pore engineering of spherical MCM-41.A comparison among the pore engineering effects of these methods has been *** results show that the hydrothermal post-synthesis treatment affords the synthesized material with a larger pore size and narrow pore size distribution without changing the spherical *** far as the pore-size expansion is concerned,the addition of DMTA is the most effective one,but this might be limited by the spherical *** the replacement of C 16TMABr with the Gemini surfactant GEM 16-8-16 with an addition of DMTA gives rise to the largest pore volume and surface area.

关键词： spherical MCM-41 pore engineering pore expander post-synthesis treatment Gemini surfactant

Atomic defects,functional groups and properties in MXenes

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第1期32卷 339-344页

作者： Wenjun Cui Zhi-Yi Hu Raymond RUnocic Gustaaf Van Tendeloo Xiahan Sang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China NRC(Nanostructure Research Centre) Wuhan University of TechnologyWuhan 430070China Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831United States emat(Electron Microscopy for Materials Science) University of AntwerpAntwerpB-2020Belgium

MXenes,a new family of functional two-dimensional(2 D) materials,have shown great potential for an extensive variety of applications within the last *** defects and functional groups in MXenes are known to have a tremendous influence on the functional *** this review,we focus on recent progress in the characterization of atomic defects and functional group chemistry in MXenes,and how to control them to directly influence various properties(e.g.,electron transport,Li^(+) adsorption,hydrogen evolution reaction(HER) activity,and magnetism) of 2 D MXenes *** structural transformations such as oxidation and growth induced by atomic defects in MXenes are also *** review thus provides perspectives on property optimization through atomic defect engineering,and bottom-up synthesis methods based on defect-assisted homoepitaxial growth of MXenes.

关键词： MXenes Atomic defects Surface functional groups Electron microscopy Functional properties