Preparation of polypyrrole (PPy)-derived polymer/ZrO 2
May 17 2018 · New polypyrrole (PPy)-derived polymer/ZrO2 nanocomposite materials are prepared by single-step oxidative polymerization of pyrrole (Py) and/or N-methylpyrrole (mPy) in the presence of HCl-functionalized ZrO2 nanoparticles and ammonium persulfate. The physicochemical features of the PPy–ZrO2 poly(Py-co-mPy)–ZrO2 and PmPy–ZrO2 hybrids were analyzed by XPS FTIR XRD and
Chat OnlineRoozbeh Siavash MoakharPostdoctoral ResearcherMcGill
ZrO2- and composite rGO–ZrO2-coated NCM811 were fabricated by a facile wet chemical method and evaluated LiNi0.8Co0.1Mn0.1O2 (NCM811) has been considered as a promising cathode for Li-ion batteries (LIBs) due to its high electrochemical capacity and low cost however poor cycling stability is one of the main restricting factors in
Chat OnlineXPS Studies of Electrodeposited Grown F-Doped ZnO Rods and
B35 Aksoy S. Caglar Y. Ilican S. Caglar M. Sol-gel derived Li-Mg co-doped ZnO films preparation and characterization via XRD XPS FESEM Journal of Alloys and Compounds 2012 Volume 512 Issue 1 pp.171 –178 Google Scholar B36 Sze S. M. Kwok K. N. Physics of Semiconductor Devices 2007 New York NY USA Wiley Google Scholar
Chat OnlineObafemi Awolowo University Ile-Ife Nigeria Physics and
From XPS studies small shift (∼0.11 eV) observed in binding energy position of Ti 2p 3/2 corroborated oxidation states of titanium species found in TiO 2 structure. Peak broadening and formation of In O Sn linkage at oxygen valence band indicated interactions between substrate s atoms due to annealing.
Chat OnlinePreparation of p-type Na-doped Cu2O by electrodeposition
Preparation of p-type Na-doped Cu 2Oby electrodeposition for a p-n homojunction thin film solar cell Nezar G Elfadill1 3 M R Hashim1 2 Khaled M Chahrour1 and S A Mohammed3 1Nano-Optoelectronics Research and Technology Laboratory School of Physics
Chat OnlinePreparation of p-type Na-doped Cu2O by electrodeposition
Preparation of p-type Na-doped Cu 2Oby electrodeposition for a p-n homojunction thin film solar cell Nezar G Elfadill1 3 M R Hashim1 2 Khaled M Chahrour1 and S A Mohammed3 1Nano-Optoelectronics Research and Technology Laboratory School of Physics
Chat OnlineFacile two-step Electrodeposition Synthesis of CuO
electrodeposited on GC surface keeping the potential of 0.1M KCl solution containing 10 mM CuCl 2 at –1.0 V for 10 min. Afterward the electrode was rinsed with H 2 O and dried using N 2. In the second step Cu nanowires were prepared by placing the Cu film-modified GC electrode into 0.1M NaOH and
Chat OnlineSynthesis and Performance Evaluation of Pulse
This research work presents the microscopic analysis of pulse electrodeposited Ni-AlN nanocomposite coatings using SEM and AFM techniques and their performance evaluation (mechanical and electrochemical) by employing nanoindentation and electrochemical methods. The Ni-AlN nanocomposite coatings were developed by pulse electrodeposition. The nickel matrix was
Chat OnlineInfluence of Zirconia Incorporation on the Mechanical and
Jan 02 2011 · Abstract. Ni-Co-ZrO 2 nano-composites are electrodeposited from sulphamate electrolyte and a comparison is made with Ni-ZrO 2 in terms of structure and properties. The Co content in the coatings is in the range of 10-80wt . The deposition conditions like current density pH are optimized in terms of microhardness and amounts of ZrO 2 incorporated. The microhardness studies
Chat OnlineXPS Interpretation of Zirconium
Interpretation of XPS spectra. Zr3d region has well resolved spin-orbit components (Δ metal =2.4eV). Spin-orbit splitting changes with chemical state. Zr3d peaks for Zr metal have an asymmetric peak shape. The same is true for conducting zirconium compounds such as ZrB 2. The oxide is reduced to sub-oxides by argon ion bombardment.
Chat OnlineDr. Pramod Kumar GuptaPostdoctoral ResearcherHanyang
This ZrO2–RGO nanocomposite was functionalized with L-methionine (Meth) for immunosensor application. Morphological and structural studies clearly indicated that ZrO2 NPs (6 nm) were decorated onto the RGO sheets and enhanced exfoliation thereby preventing the restacking of the RGO sheets.
Chat OnlineMicrostructural analysis and surface studies on Ag-Ge
Among the main characteristics of silver and its alloys tarnish resistance as well as surface brightness is essential. Alloying these materials with germanium has been shown to have considerable potential in providing tarnish protection. However studies regarding the electrodeposited silver-germanium (Ag–Ge) alloy coatings are limited. The main objective of this study is to investigate the
Chat OnlineSurface chemistry of electrodeposited Cu2O films studied
Nov 30 2013 · The surfaces of electrodeposited Cu 2 O films grown using a variety of solution conditions have been examined using X-ray photoelectron spectroscopy (XPS). Sodium and carbon are identified as impurities in certain films. Cu 2 O films deposited from basic solutions using lactate or citrate ligands contain more impurities than films deposited from acidic lactate or acetate solutions.
Chat OnlineSynthesis and Performance Evaluation of Pulse
Jan 24 2018 · The surface analysis of pulse electrodeposited Ni-AlN coatings has been carried out through field emission scanning electron microscope (FESEM) and atomic force microscopy (AFM). The FESEM images of pure nickel and Ni-AlN nanocomposite coatings for concentrations of 3 6 and 9 g/L are presented in Figures 4(a) 4(b) 4(c) and 4(d) respectively.
Chat OnlinePlain to point network reduced graphene oxideactivated
Feb 15 2016 · In this study a hydrothermal technique was applied to synthesize glucose-treated reduced graphene oxide-activated carbon (GRGO/AC) composites. Platinum nanoparticles (PtNP) were electrochemically
Chat OnlineDr Mark Baker University of Surrey
The XPS studies demonstrated the co-presence of Cu 2 /Cu 1 and Ce 4 /Ce 3 redox couples in agreement with the Bader charge analysis from the ab initio calculations the latter influencing greatly the oxidation activity of the catalysts. Density functional theory (DFT) calculations shed light on the oxide surface and the underlying mechanism
Chat OnlinePreparation of polypyrrole (PPy)-derived polymer/ZrO 2
May 17 2018 · New polypyrrole (PPy)-derived polymer/ZrO2 nanocomposite materials are prepared by single-step oxidative polymerization of pyrrole (Py) and/or N-methylpyrrole (mPy) in the presence of HCl-functionalized ZrO2 nanoparticles and ammonium persulfate. The physicochemical features of the PPy–ZrO2 poly(Py-co-mPy)–ZrO2 and PmPy–ZrO2 hybrids were analyzed by XPS FTIR XRD and
Chat OnlineUniformly electrodeposited α-MnO2 film on super-aligned
Uniformly electrodeposited α-MnO 2 film on super-aligned electrospun carbon nanofibers as a bifunctional catalyst for the oxygen reduction reaction . By Zheng Zeng Wendi Zhang Yiyang Liu Pei Lu and . Jianjun Wei. Z. Zeng W. Zhang Y. Liu P. Li J. Wei Uniformly electrodeposited α
Chat OnlineKamalan Kirubaharan A MResearch Scientist
In the present study monoclinic (m-ZrO2) and tetragonal (t-ZrO2) phases of zirconia were deposited on stainless steel (316L SS) by electron beam physical vapor deposition (EBPVD) to enhance several properties of substrate material. m-ZrO2 and t-ZrO2 coatings effectively protected bacterial invasion against pathogenic Pseudomonas aeruginosa (P
Chat OnlinePulse electrodeposited nickel with structure directing
The electrodes were characterized using FESEM TEM EDAX XRD XPS and AFM for surface morphology chemical composition preferred orientation oxidation states and surface roughness. In the presence of the structure directing agents the surface morphologies get modified from pine-cone to sponge-like structures and the relative intensities of
Chat OnlineMeenu SrivastavaAcademia.edu
FESEM and XPS studies of ZrO2 modified electrodeposited NiCoCrAlY nanocomposite coating subjected to hot corrosion environment more by Meenu Srivastava Publication Date 2016
Chat OnlineJournal of Nano- and Electronic Physics
The structural study of ZnO NRs indicates that the formation of hexagonal crystal structure evident from the XRD pattern. The FESEM image suggested the formation of nanorods like morphology. The effect of dispersed ZnO NRs on the resistive switching behavior of Bmim(Br) ionic liquid was studied.
Chat OnlinePlamen StefanovAcademia.edu
Plamen Stefanov studies Laser Ablation Aluminum and Laser Spectroscopy. The composition and structure of the Ag loaded Al2O3/SS and ZrO2/SS films were characterized by SEM XPS and XRD. It was established that the electrochemical deposition leads to the formation of an active phase of isolated particles of metal silver with a mean size
Chat OnlineKamalan Kirubaharan A MResearch Scientist
In the present study monoclinic (m-ZrO2) and tetragonal (t-ZrO2) phases of zirconia were deposited on stainless steel (316L SS) by electron beam physical vapor deposition (EBPVD) to enhance several properties of substrate material. m-ZrO2 and t-ZrO2 coatings effectively protected bacterial invasion against pathogenic Pseudomonas aeruginosa (P
Chat OnlineJurgita ZekonyteLecturerUniversity of Portsmouth
X-ray photoelectron spectroscopy (XPS) revealed that the surface chemistry was altered for all chemically modified surfaces confirming the modification step. The field emission scanning electron microscopy (FESEM) demonstrated that the nanoparticulate coating remained intact after each chemical treatment.
Chat OnlinePreparation of polypyrrole (PPy)-derived polymer/ZrO 2
May 17 2018 · New polypyrrole (PPy)-derived polymer/ZrO2 nanocomposite materials are prepared by single-step oxidative polymerization of pyrrole (Py) and/or N-methylpyrrole (mPy) in the presence of HCl-functionalized ZrO2 nanoparticles and ammonium persulfate. The physicochemical features of the PPy–ZrO2 poly(Py-co-mPy)–ZrO2 and PmPy–ZrO2 hybrids were analyzed by XPS FTIR XRD and
Chat OnlineMicrostructure optical properties and catalytic
2O-modified ZnO nanorod films was observed with a field-emission scanning electron microscope (FESEM S4800 Ltd. Chiyoda Tokyo Japan). A UV-visible (UV-vis) spectrophotometer (UV-2550 Shimadzu Tokyo Japan) was used to measure the UV-vis absorption spectra of the as-deposited films. The surface composition was an-
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