Muhammad Usman

5 Questions 16 Answers 0 Followers

Questions related from Muhammad Usman

Why material with same structure and composition performs differently in RAMAN Spectroscopy?

I was carrying out RAMAN Spectroscopy for MOFs. I have been carried out the XRD and EDX analysis for three samples synthesized by a different protocol. The crystal structure and chemical...

14 September 2020 7,271 5 View

How can we determine doping concentration?

How can I find the exact doping concentration in a chemically synthesized material? As there is no possible reaction which produces the same doping concentration of initially added ratio in a...

03 September 2020 3,775 11 View

Why sample disappear during SEM imaging?

One of my colleagues is working on the synthesis of metal oxide nanoparticle. We got a surprising issue in SEM analysis. When we start SEM imaging the sample got disappear within few second while...

28 August 2020 2,158 6 View

How can we perform Raman Spectroscopy of thin film coated on glass substrate?

why the intensity of Raman shift reduced for thin-film coated on glass substrate? and huge noise generated? Please suggest a suitable method to perform Raman spectroscopy for thin films.

15 January 2020 6,373 8 View

What solvent can be used alternative to 2-methoxy ethanol?

What solvent can be used alternative to 2-methoxyethanole in preparation of NiO from nickle acetate?

18 October 2018 9,748 3 View