Wedad A. Alwesabi

23 Questions 30 Answers 0 Followers

Questions related from Wedad A. Alwesabi

Hello, regarding Mxene 2D titanium carbide?

I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.

03 August 2024 7,095 4 View

Hello, please if any researcher work in ion battery help me,?

I need to plot cycle number vs. capacity with multicurrent density. please let me know if my steps are right or not as the below picture

15 July 2024 7,732 2 View

Please, give me the correct syhtesis process for hbn and what is the raman range for h-BN ?

I prepared h-BN by hydrothermal methods by boron anhydride and urea after hydrothermal I was heated at 800 temps for 12 hours after that my sample stuck to the crucible the third time, and the...

16 May 2024 7,615 0 View

Hello, I need to ensure that my calculation for the amount of ZnO-TiO2 nanocomposite is right or is there a mistake, or there is another way?

I fabricated nanocomposite using the sol-gel method with a mole ratio (1:1) I want (10g) of the final product ZnO-TiO2( molar mass-161.246g/mol) the calculations of the raw materials are as...

14 May 2024 1,790 5 View

Hello, what the value of Id/Ig ratio for graphene oxide should be?

i prepared graphene oxide by modified hummers method

14 May 2024 5,211 2 View

Please, is it important to convert MgO nanoparticle powder to pellet for getting peaks of Raman spectrum?

MgO NPs were synthesized by sol-gel method. i got Raman peaks at 1022 and 1400

10 May 2024 1,075 3 View

What are starting material for hBN powder synthesis ?

I need this synthesis by hydrothermal method

07 May 2024 1,916 4 View

Hello,I prepared MgO NPs by sol-gel method, for raman spectroscopy what range should i use? because i used (100-900) but there is no peak?

Actually, I prepared a large amount of MgO, after aging I kept it in a hot air oven at 120 for 12 hours, but there was still moisture there, then I kept it again in a hot air oven at 120C for 6...

06 May 2024 6,322 2 View

Which type of laser and laser power appropriate for Raman for magnetite Fe3O4?

because I prepared magnetite by sol-gel method, I got XRD peaks, but for Raman, I didn't get a peak at the range 600cm-1, should I change the wavelength of the laser, or what do I have to do

06 May 2024 2,300 4 View

Hello, please , can we use the microwave oven which used in kitchen for drying the sample instead of the hot air oven?

microwave

17 April 2024 10,069 4 View

Why the sample get evaporation when keeping it in tube furnace with Ar gas?

rGo by heating GO sample is getting out by tube

03 April 2024 1,939 1 View

When should take TGA after synthesis material, I mean we should do his analysis before calcination?

TGA

21 March 2024 8,147 4 View

When should take TGA after synthesis material, I mean we should do his analysis before calcination?

TGA

21 March 2024 9,607 5 View

Is it possible to use the bottles of the centrifuge machine many times?

centrifuge machine

05 March 2024 2,088 2 View

What the difference between half cell and full cell? and what material should be used as electrode? how can select this electrode as anode or cathode?

in battery

19 January 2024 3,432 6 View

Please, is there anyone work in radiation shielding parameters of mixed metal composition like ZnO-TiO?

I want only how he apply atomic and electronic cross-section, please

31 July 2023 9,009 1 View

I synthesized TiO2-ZnO nanocomposites with different concentrations. My question about molar mass of this composition?

Do molar mass has the one value (161.2452 g/mol) for all concentrations or the mole are inserted for calculation molar mass for each concentration? I want to know that for calculating the...

25 July 2023 4,126 4 View

Please really I need your helping, I want to know how can I calculate the density of my composition, I fabricated the nanocomposite zno/cuo ?

using coprecipitation method with raw materials : ZnCl2 and Cu(NO3)2.3H2O

10 July 2023 8,351 5 View

Why did not got a regular curve of attenuation of gamma ray despite the recorded counts were reducing with increasing the sample thickness?

I fabricated mixture of metal oxide nanocomposite and converted it to pellets to study the attenuation for gamma ray

30 June 2023 5,502 9 View

Hello, please I want to know how do I calculate the chemical composition density of .05ZnO/.05CuO (mixture)?

I use ZnCl2 and Cu(No3)2.3H2O as starting materials. NaOH was reducing agent. solvent was distilled water. coprecipitation method was used.

29 June 2023 8,996 2 View

By origin lab, what are peaks which should I choose them for cuo/zno NCP in XRD?

nanocomposites synthesis

24 December 2022 7,177 7 View

Hello, i want to ask about if the calcination step is important in hydrothermal method?

for synthesising nanosized materials

01 January 1970 2,477 1 View

Hello, I have LiF since 2018, can I use it for Mxene material or it is expired?

lithium fluoride

01 January 1970 1,936 2 View