Cover Page December-2018-Advanced Materials Letters

Advanced Materials Letters

Volume 9, Issue 12, Pages 867-871, December 2018
About Cover

Researcher of the Year 2018 - Professor T. Venkatesan. The advanced materials community would like to take this opportunity to pay rich tributes to Professor T. Venkatesan for his pioneering research and notable contributions to nanoscience and nanotechnology. Advanced Materials Letters have been selected his photo for the cover of this special year-end issue.


Nucleation and growth of carbon nanoforms on the surface of metallic plate-substrates and the mechanism of their doping with the clusters of ferromagnetic atoms  

E. Kutelia1*, L. Rukhadze1, N.Jalabadze1, T. Dzigrashvili1, O. Tsurtsumia1, D. Gventsadze2

1Republic Centre for Structure Researches of Georgian Technical University, 77 Kostava Str., Tbilisi 0175, Georgia

2R. Dvali Institute of Machine Mechanics, 10 Mindeli Str., Tbilisi 0186, Georgia

Adv. Mater. Lett., 2018, 9 (12), pp 867-871

DOI: 10.5185/amlett.2018.2144

Publication Date (Web): Sep 14, 2018

E-mail: ekutelia@gtu.edu.ge

Abstract

The present work deals with the special experiments on SEM-EDX study of morphology, chemical composition and topological transformations of the initial ground surface of the bulk iron plate-substrate after its interaction with the ethanol vapor pyrolysis products at high temperatures in the closed-loop and open cycle reactors. Our experiments have shown that the mechanism of formation of Fe clusters-doped CNFs on plate-substrate surfaces may be represented as a process, the first stage of which is a protonation of the substrate subsurface layers caused by diffusion of hydrogen atoms facilitating the formation of 3D nano-groups of Fe atoms assembled in the characteristic clusters with magic numbers of atoms, depending on the thermodynamics of the metal. The spontaneous coalescence of these clusters into giant Fe-clusters at comparatively low temperatures and formation of iron nano-droplets at comparatively high temperatures results in the formation of a nanopatterned surface with the uniformly distributed catalytic centers of CNFs nucleation. The second stage of the process is a nanoparticle-guided growth through the VLS or VS (at low temperatures) growth mechanisms in which the one cluster provides nucleation of only one CNF particle so that the sizes of the nucleation centers determine the basic size of the CNF nanoparticles.

Keywords

Doped CNFs, clusters, growth mechanism, metal plate-substrate, SEM-EDX.

Current Issue

Tech-footprints for virtual medicine


Advances in corrosion inhibition materials and technologies: A review


Ring models of atoms, molecules and nanomaterials


(FeCo/Ppy@C): Pt-free FeCo-Polypyrrole Nanocomposites Supported on Porous Carbon for Electrochemical Application


Physical and mechanical properties of microwave absorber material containing micro and nano barium ferrite  


Formation of nano-dispersed Cu particles during aging of a Fe-Cu alloy and dislocation effect


Preparation of novel tragacanth gum-entrapped lecithin nanogels 


Modulation of optical properties with multilayer thickness in antimonene and indiene   


Bi-doped CH3NH3PbI3 effective masses and electronic properties research: A theoretical study using VASP


Novel synthesis of Pd nanosheets used as highly sensitive SERS substrate for trace fluorescent dye detection 


Silver nanoparticles mediated by extract of Guar plant (Cyamopsis tetragonoloba), and evaluation of their photocatalytic and antibacterial properties


Study of TiO2 nanofibers prepared by electrospinning technique


Determination of leachate pollution content in soil using in-situ dielectric measurement  


Previous issues

Intelligent healthcare for future medicine

Review of nanoscale layered transition metal chalcogenide superconductors

Evaluation of NSAIDs antioxidant activity on lipid peroxidation in splenocyte membranes

Morphological, structural, thermal and degradation properties of polylactic acid-waxy maize starch nanocrystals based nanocomposites prepared by melt processing

Influence of surfactant on the patterning behavior of nanosilver within polyacrylamide nanogels

Cell study of the biomimetic modifications on a CoCrMo alloy for biomedical applications

SPIONs and curcumin co-encapsulated mixed micelles based nanoformulation for biomedical applications

Fabrication of Y2O3 coatings by cold-spray

Triclinic LiVPO4F/C cathode for aqueous rechargeable lithium-ion batteries

PRAP-CVD: Up-scalable process for the deposition of PEDOT thin films

Effect of storage time, plasticizer formulation and extrusion parameters on the performance of thermoplastic starch films

Effect of silver nanoparticles on the ammonia gas sensing behavior in diphenylamine based conjugated polymer

Study the possibility of using sisal fibres in building applications

Upcoming Congress

Knowledge Experience at Sea TM