What if K-absorption edge of filter material in XRD lie exactly at the K beta radiation of targeted source in X ray diffraction system?

In designing the Xray machine, we always want a monochromatic Kalpha radiation of X-ray source. For this purpose we generally put a filter to reduce the k beta radiation but still we get some k...

10 November 2019 2,393 4 View

What are the possible reason that two material form a core-shell structure?

In my one of the project which was based on metal oxide material based supercapacitor electrode in which I used carbon material during the synthesis and I got a core-shell structure of carbon and...

05 June 2019 9,834 2 View

How to differentiate between XRD pattern of Graphen Oxide and Reduced Graphene Oxide?

I use GO in my recent project and I did XRD of GO and got below attached data (figure). I am confused that its GO or RGO. And when I did literature survey I got mixed answer some paper show that...

01 February 2019 1,637 3 View

How to optimise weight deposit on Ni Foam for supercapacitor application?

During making an electrode of Ni foam by past as prepared slurry of required sample, the weight gain is always comes out to very high around 10-15 mg. Although in literature mention that weight...

09 October 2018 7,059 3 View

What is the dilute magnetic semiconductor?

I want to read about dilute magnetic semiconductor about its property and reason of ferromagnetic behaviour, can any one share me the recent review article of it.

04 May 2018 8,954 0 View

How to obtain size distribution curve from FE SEM image?

I am unable to obtain size distribution curve from image J software. can anyone help me out. I also attach the image file.

03 April 2018 6,964 4 View

How to calculate surface area of particle?

How to calculate the specific surface area of particles. if particle size distribution is given.

03 April 2018 6,193 6 View

How to deposit uniform NiO slurry on Ni foam?

I have to made Ni foam supercapacitor electrode for this I need to deposit slurry of NiO nanostructure and binder on Ni foam. Can anyone suggest the method to deposit this slurry on Ni foam so...

02 March 2018 2,219 4 View

Can anyone suggest me the best way to prepare powder sample for SEM analysis?

Today I done SEM analysis of powder sample by simple sprinkle it on a carbon tep followed by gold coating but the SEM images wouldn't come clear agglomeration occur.

01 February 2018 7,838 5 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View

How to identify what type of fillers are in a polymer?

Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...

24 February 2021 1,356 8 View

How can I selectively dry etch Ti on a polymer substrate?

24 February 2021 5,378 1 View