Hussein S. Moghaieb

11 Questions 30 Answers 0 Followers

Questions related from Hussein S. Moghaieb

Does anyone here have an idea if there are glass Petri dishes available in market with a diameter of 25 mm?

I am trying to buy a Petri dish with a small diameter for nanofluid photo-thermal conversion experiment but the smallest diameter I found starts from 30-35 mm which doesn't fit my experiment...

06 June 2018 6,037 4 View

How to remove unreduced gold salt after a drying process of gold nanoparticles synthesized in distilled water using atmospheric microplasma process?

I have synthesized some samples of gold nanoparticles (AuNPs) using gold salt HAuCL4.3h2O with distilled water at different gold salt concentrations under 10 minutes treatment without any...

06 June 2018 1,762 3 View

How to perfectly get dry nanopartciles without losing any particles after an evaporation process for a colloid?

I have synthesised GNPs by plasma reduction method using HAuCl4 mixed with distilled water at different molar concentrations (from 0.05 to 1 mM). As a next step, I want to determine the Au NPs...

02 February 2018 9,756 13 View

Which one of them is most cutting edge for a PhD student, thermoacoustic technology or plasma-based nanoparticles fabrication?

I just would like to know in general which one of them will be more trendier?

07 July 2017 572 2 View

Why does nanofluid specific heat decrease with increasing nanoparticles concentration?

Thanks

07 July 2017 10,014 4 View

How to prevent light reflection back to nanofluid under investigation (photothermal conversion experiment)

In my experimental work, I am studying the photothermal conversion of nanofluids which exposed to incident light from a solar simulator. The insulation layers around the nanofluid glass container...

01 January 1970 6,369 5 View

Drying of colloidal nanoparticles

Lyophilisation (freeze drying) or heat drying of colloidal nanoparticles, which one of them increases the aggregation/agglomeration more?

01 January 1970 3,397 13 View

Influence of sonication parameters on Au NPs dispersion

I am trying to read more about the effect of sonication parameters (Prob-type sonicator), such as time, amplitude and power delivered, on Au NPs dispersed in EG or water. Could you please share...

01 January 1970 6,086 5 View

What are the possible chemical reaction pathways of what described below ..

A copper foil immersed in an electrolyte, consists of NaCl+NaOH+NaNO3 dissloved in distilled water, exposed to a source of electrons (atmospheric-pressure plasma) to form CuO and Cu2O...

01 January 1970 7,434 4 View

Is there any COMSOL tutorials for nanofluids, single or two phase systems?

COMSOL has its own tutorials library which is getting huge but nothing about nanofluids is available there .. any alternative sources where I can find about nanofluids? Thank you

01 January 1970 1,007 5 View

How to separate the unreduced gold salt from the reduced part (gold nanoparticles) after synthesizing.

I've synthesized surfactant-free gold nanoparticles by generating atmospheric-pressure microplasma on the surface of gold salt (HAuCl4.3H2O) aqueous solution (1 mM) for 10 minutes processing time...

01 January 1970 6,362 3 View