A5102772486- Ga2O3 and related materials
- ZnO doping and properties
- Electrocatalysts for Energy Conversion
- GaN-based semiconductor devices and materials
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Crystallization and Solubility Studies
- Electrochemical sensors and biosensors
- X-ray Diffraction in Crystallography
- Advanced biosensing and bioanalysis techniques
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced battery technologies research
- Ferroelectric and Piezoelectric Materials
- Catalysis and Oxidation Reactions
- Crystallography and molecular interactions
- 2D Materials and Applications
- Fuel Cells and Related Materials
- Electrochemical Analysis and Applications
- Microwave Dielectric Ceramics Synthesis
- Thermal Expansion and Ionic Conductivity
- Copper-based nanomaterials and applications
- Silicone and Siloxane Chemistry
- Metal and Thin Film Mechanics
- Nanowire Synthesis and Applications
Tsinghua University
2021-2025
Koç University
2023
Quaid-i-Azam University
2008-2022
Linköping University
2009-2013
Norrköping Hospital
2011-2012
Abstract The development of highly active and stable bifunctional noble‐metal‐based electrocatalysts for the hydrogen evolution reaction (HER) oxygen (OER) is a crucial goal clean renewable energy, which still remains challenging. Herein, we report an efficient catalyst comprising Co single atom incorporated in RuO 2 sphere HER OER, was confirmed by XAS, AC‐STEM, DFT. This tailoring strategy uses to modify electronic structures surrounding Ru atoms thereby remarkably elevates...
Abstract The development of highly active and stable bifunctional noble‐metal‐based electrocatalysts for the hydrogen evolution reaction (HER) oxygen (OER) is a crucial goal clean renewable energy, which still remains challenging. Herein, we report an efficient catalyst comprising Co single atom incorporated in RuO 2 sphere HER OER, was confirmed by XAS, AC‐STEM, DFT. This tailoring strategy uses to modify electronic structures surrounding Ru atoms thereby remarkably elevates...
Nowadays, extensive efforts have been devoted to the fabrication and design of metalbased catalysts with high activity, selectivity, stability. Theoretical experimental investigations empowered construction a variety techniques tune catalytic efficiency by monitoring their size, morphology, composition, crystal structure. Multimetal (MMCs) provide revolutionary synergistic effect between metals, which is promising strategy enhance catalysts' productivity product selectivity. The purpose this...
Abstract The present article describes a miniaturized potentiometric urea lipid film based biosensor on graphene nanosheets. Structural characterization of nanosheets for miniaturization biosensors have been studied through atomic force microscopy (AFM) and transmission electron (TEM) measurements. UV‐Vis Fourrier transform IR (FTIR) spectroscopy utilized to study the pre‐ postconjugated surfaces presented exhibits good reproducibility, reusability, selectivity, rapid response times (∼4 s),...
The iron oxide (Fe3O4) magnetic nanoparticles have been fabricated through a simple, cheap and reproducible approach. Scanning electron microscope, x-rays powder diffraction of the nanoparticles. Furthermore, fabrication potentiometric urea biosensor is carried out drop casting initially prepared isopropanol chitosan solution, containing Fe3O4 nanoparticles, on glass fiber filter with diameter 2 cm copper wire (of thickness −500 μm) has utilized to extract voltage signal from functionalized...
Abstract Electrocatalysts with a hollow nanocage structure and single atoms (SAs) incorporated into layered double hydroxide (LDH) are highly significant for enhancing the efficiency of electrochemical water splitting. In this study, efficient robust electrocatalyst oxygen evolution reaction (OER) is successfully fabricated by confining Ru SAs within made NiFe LDH. An etching co‐precipitation method used making LDH nanocages integrating to produce Ru‐SAC/NiFe The architecture increases...
Highly oriented ZnO nanotubes were fabricated on a silicon substrate by aqueous chemical growth at low temperature (<100 °C) trimming of nanorods. The yield in the sample was 100%. Photoluminescence spectroscopy reveals an enhanced and broadened ultraviolet (UV) emission peak, compared with initial This effect is attributed to whispering gallery mode resonance. In addition, redshift UV peak also observed. Enhancement deep defect band nanorods manifested as result increased surface area.
Electroluminescence characteristics of an n-ZnO nanotubes/p-GaN heterostructure light-emitting diode (LED) have been investigated at forward and reverse bias. Distinctly different emission spectra observed the location recombination electron–hole is analyzed under both configurations. The forward-biased spectrum shows two peaks centered around 450 560 nm, while reverse-biased exhibits a single peak 650 nm. By comparing current transport mechanisms, it suggested that violet-blue (450 nm) only...
ZnO nanotubes (ZNTs) have been successfully evolved from nanorods (ZNRs) by a simple chemical etching process. Two peaks located at 382 and 384 nm in the UV emission region has observed room temperature photoluminescence (PL) spectrum of ZNTs since surface band bending induces coexistence indirect direct transitions their In addition, strong enhancement total luminescence intensity also be comparison with that ZNRs. Both temperature-dependent PL time-resolved results not only further testify...
Abstract One-dimensional nanostructures hold the most attractive and excellent physiochemical characteristics which exhibit paramount influence on fundamental technological nanoelectronic as well nanophotonic applications. In this review article, we present a detailed introduction to diverse synthetic procedures can be utilized for fabrication of single-, planar- three-dimensional ZnO nanostructures. More specifically, thorough discussion regarding luminescence one-dimensional is presented...
Nano-composite, perovskite Ba(1- x - y)Sr(x)TiFe(y)O3, denoted as (BSTFe) in powder form was derived via sol-gel (SG) method followed by sintering at fixed temperature 750℃ for one hour. The chemical composition, morphology and structure of the samples were investigated using X-ray diffraction (XRD), transmission electron microscope (TEM) scanning (SEM). XRD characterization indicates formation a cubic crystalline phase pure BST. A well defined with nano-crystallite sizes equal to about 34...
The potentiometric cholesterol biosensor based on graphene nanosheets has been successfully miniaturized.Homogeneous exfoliation of the mono-and double-layered copper wire is achieved by drop casting suspended in N-methyl-pyrrolidone solution.The process physical adsorption utilized to immobilize oxidase onto nanosheets.Morphological, crosssectional and structural crystallinity have investigated using atomic force microscope transmission electron microscope.Ultraviolet-visible absorption...
Abstract Combined surface, structural and opto-electrical investigations are drawn from the chemically fashioned ZnO nanotubes its heterostructure with p-GaN film. A strong correlation has been found between formation of radiative surface defect states in pure cool white light possessing averaged eight color rendering index value 96 appropriate temperature. Highly important deep-red realized > 95 which capability to render reproduce natural vivid colors accurately. Diverse types deep...
Zinc oxide (ZnO) and especially in the nanostructure form is currently being intensively investigated world wide for possibility of developing different new photonic devices. We will here present our recent findings on controlled low temperature chemical growth ZnO nanorods (NRs) large area substrates. Many heterojunctions NRs p-substrates including those crystalline e.g. p-GaN, p-SiC or amorphous nature p-polymer coated plastic paper be shown. Moreover, effect p-electrode these tuning...