Academic Articles & Research Papers

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GO supported Fe doped Ni(OH)2 hexagonal nanosheets for hydrogen evolution reaction in neutral electrolytes

Exploiting non-noble metals catalysts with excellent performance for hydrogen evolution reaction (HER) has aroused gigantic interest, but still challenges. Herein, we reported the graphene oxide (GO) supported Fe doped Ni(OH) _2 hexagonal n...

Nanomaterials in nuclear engineering and radioecology

Key results concerning large-scale application of nanomaterials in nuclear engineering are reviewed. The data on redox reactions of uranium and actinides in solutions and solid-phase transformations for the development of modern technologie...

Nuclear Engineering

Human beings have engaged in some form of “materials engineering” since the beginning of life on Earth. We have even named eras after the materials that were predominantly used in those historic times (e.g., Stone Age, Bronze Age). However,...

Experimental investigation on phase change behavior of nanocomposite phase change material filled inside the shell and tube heat exchanger

In this paper, melting and solidification characteristics of composite PCM filled inside the shell and tube heat exchanger were investigated experimentally. ZnO nanoparticles (NPs) were synthesized using the sol–gel method. Myristic acid (M...

Unveiling the Assembly of Neutral Marine Polysaccharides into Electrostatic-Driven Layer-by-Layer Bioassemblies by Chemical Functionalization

Marine-origin polysaccharides, in particular cationic and anionic ones, have been widely explored as building blocks in fully natural or hybrid electrostatic-driven Layer-by-Layer (LbL) assemblies for bioapplications. However, the low chemi...

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current ...

Research report on green and low-carbon development of superhard material industry

Under the background of the comprehensive implementation of the National Carbon Peak Carbon Neutralization Action, the superhard material industry energy consumption research was carried out. It aims to promote the superhard material indust...

Complex structural evolution in BaTiO3 single crystals caused by the coexistence of competing anharmonic potentials

BaTiO3 (BTO) was the first ferroelectric perovskite oxide discovered in the 1940′th.. It was also the first ferroelectric compound without hydrogen bonds. Its wide applicability, together with its simple cubic structure, directly intensifie...

Experimental study on the impact of sulfate attack on the performance of shaft lining concrete under sustained compressive load

To investigate the impact of sulfate corrosion on the performance of shaft lining concrete under sustained compressive loads, this study immersed samples in a 10 % sodium sulfate solution after subjecting to sustained compressive loads of 0...

Enhanced Photocatalytic Degradation Activity of BiFeO3 Microspheres by Decoration with g-C3N4 Nanoparticles

In this work, the g-C3N4 nanoparticles decorated BiFeO3 microspheres composites (g-C3N4/BiFeO3) were successfully synthesized by hydrothermal treatment of g-C3N4 nanoparticles together with BiFeO3 microspheres. The SEM and HRTEM observation...

Formation of surfaces oxide vacancies in porous ZnCo2O4 nanoflowers for enhanced energy storage performance

Abstract A cost-effective and large-scale method for synthesizing ZnCo2O4 nanoflowers with surface oxygen vacancies as electrode materials for supercapacitors is presented. The existence of oxygen vacancies on the surface of the ZnCo2O4 nan...

Nuclear Engineering Handbook

Section I Introduction: Nuclear Power Reactors * Historical Development of Nuclear Power Kenneth D. Kok * Pressurized Water Reactors Richard Schreiber * Boiling Water Reactors Kevin Theriault * Heavy Water Reactors Alistar I. Miller, John L...

Detection of microRNA-335-5p on an Interdigitated Electrode Surface for Determination of the Severity of Abdominal Aortic Aneurysms

Abstract Abdominal aortic aneurysm (AAA) refers to the enlargement of the lower artery of the abdominal aorta, and identification of an early detection tool is urgently needed for diagnosis. In the current study, an interdigitated electrode...

Study on the crystallization kinetics of Ni-Mn-Sn-Fe alloy thin films

This study examines the crystallization kinetics of Ni _50−x Mn _39 Sn _11 Fe _x (x = 0, 0.5, 2, 4 at.%) amorphous thin films prepared by DC magnetron sputtering. SEM and XRD confirm their amorphous structure. Non-isothermal DSC results sho...

Toxicity and biodistribution comparison of functionalized nanodiamonds, quantum dot nanocarbons and gold nanoparticles

IntroductionNanomaterials are extensively utilized in applications ranging from electronics to biomedical therapies; however, their widespread use has prompted concerns about potential toxicity in humans. Understanding the biodistribution a...

Establishing a pure antiferroelectric PbZrO3 phase through tensile epitaxial strain

Abstract The nature of lead zirconate, the historical antiferroelectric material, has recently been challenged. In PbZrO3 epitaxial films, thickness reduction engenders competition among antiferroelectric, ferrielectric and ferroelectric ph...

Hybrid Organometallic-Inorganic Nanomaterial: Acetyl Ferrocene Schiff base Immobilized on Silica Coated Magnetite Nanoparticles

In  this  work,  a  new  hybrid  organometallic-inorganic  hybrid nanomaterial was prepared by immobilization of acetyl ferrocene on the  surface  of magnetite  nanoparticles. Covalent  grafting of silica coated magnetite nanoparticles (SCM...

Characterization and modeling of nanotips fabricated in the field ion microscope

Nanotips are considered significant elements in some of nanotechnology instruments. They are used in scanning probe microscopes and electron microscopes to characterize materials at the nano and atomic scales. Therefore, the size and profil...

Effect of Preparation Mode on the Properties of Mn-Na-W/SiO2 Catalysts for Oxidative Coupling of Methane: Conventional Methods vs. POSS Nanotechnology

Using XPS, BET, XRD, TG-DTA, HRTEM-EDX, TPR and UV-Vis Diffuse Reflectance spectroscopic methods the electronic, redox and structural properties of Mn-Na-W/SiO2 catalysts prepared by the incipient wetness impregnation method and mixture slu...