Alireza Yaghoubi

6 Questions 11 Answers 0 Followers

Questions related from Alireza Yaghoubi

How to verify that carbon quantum dots are composed of carbon based materials?

What is the relationship between the excitation intensity and the emission intensity of carbon quantum dots ? Exactly what area of the wavelength is the fluorescence emission of carbon quantum...

12 January 2021 5,033 4 View

In the tensile test for a nanocomposite sample, if the sample width decreases (thickness is constant), what does the stress-strain curve change?

Given that the stress is equal to the force divided by the area(width*thickness), what change does the reduction in sample width make to the stress-strain curve? Does stress change occur...

10 January 2021 5,330 5 View

Can anyone help or advise how and by what mechanism graphene oxide-activated persulfate can react with acrylamide and polyacrylamide in water solvent?

What are the products of the reactions mentioned above? And by what mechanism are they produced? Does graphene oxide itself participate in the reaction? Does not sulfate react with graphene...

19 November 2020 7,157 6 View

What are the factors that increase the intensity of the Raman peaks in molecules ? And what interpretation can high peak intensity have?

In addition, what factors are influential in changing the position of peaks in Raman? In an acrylamide-CNT nanocomposite sample, the intensity of all Raman peaks increased with increasing CNT...

21 August 2020 2,273 3 View

Can anyone explain how intense ultrasound of carbon nanotubes affects the intensity and position of its Raman spectrum?

Does the Raman peaks of carbon nanotubes under strong ultrasonic waves with a duration of more than an hour shift to higher or lower wavelengths and why? Can very low amounts of these sonicated...

13 August 2020 8,368 5 View

Does anyone guide why graphene-amide nano-composite films become two-phase?

Unreacted (White) and Uniform (Black) Phases. Graphene oxide and acrylamide have been mixed together in thermal condition. I have tried various variables such as temperature, concentration, etc....

27 January 2020 1,050 2 View