I am trying the synthesis of graphene oxide by using modified hummer's method and the color of my product was white silver so is it graphene oxide?

i have tried modified hummer's method for the synthesis of graphene oxide by adding Graphite powder and NaNO3 in H2SO4 . In this mix KMnO4 was added and diluted with water . this mix was heated...

13 January 2021 9,423 4 View

How XRD intensity is affected with density of powders ?

I mixed 60 vol% boron carbide (B4C), 25 vol% titanium diboride (TiB2), 10 vol% silicon carbide (SiC) and 5 vol% alumina (Al2O3) powders in jar mill for 12 hours using toluene as mixing...

17 June 2020 1,433 13 View

How can i solve a set of 3 equations having one of the element as non linear involving sigmaudot of the response u?

I need to use matlab to get the displacement and velocity time history of the 3 degree of freedom system (image attached). i can use any numerical method or ode45 but one of the element in third...

25 September 2019 3,820 5 View

How can I apply a thermo-mechanical load in hypermesh?

I want to determine the stresses for a laminated composite plate under thermo-mechanical load.

24 May 2019 9,180 4 View

Can I get MATLAB code for vibrational analysis of composite plate?

Iam working on vibrational analysis of laminated composite plate using MATLAB.

28 October 2018 7,641 3 View

Required information regarding impact testing machine for polymer composites?

Hello guys, i am working on characterisation and design application of polymer composites. I want to perform the pendulum impact testing of the fabricated composite, for this i need fracture...

24 March 2018 7,143 3 View

Why xrd data of powder materials do not have stable baseline throughout 2theta range(10-90) . Baseline shifts from top to down as angle increases?

why xrd data of powder materials do not have stable baseline throughout 2theta range(10-90) . Baseline shifts from top to down as angle increases?

18 April 2017 4,844 4 View

How can I extract triazole from DMSO solvent?

05 December 2014 8,498 3 View

Why am I not getting structures in synthesizing of bimetallic core-nanoshell nanoparticles?

I need some help synthesizing bimetallic core-nanoshell nanoparticle of Ru:Pd:Ni. Why am I not getting such structures? Can anybody help me out?

05 May 2014 2,528 1 View

How can one make a 3D map with GIS software?

Could anyone advise me on creating 3D maps with GIS software?

22 January 2014 4,759 9 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

Why use both bead beating and enzymes (lysostaphin and lysozyme) for DNA extraction from sputum samples?

Hello, I have read in a few publications that to extract total DNA from sputum samples, both bead beating and enzymes are used to disrupt the cells. Bead beating is supposed to be efficient in...

18 February 2021 3,360 2 View

How much costs direct reduction of nitrogen on farmland in terms of lower crop yield?

Dear research fellows, I wonder if someone knows how much direct reduction of nitrogen on farmland costs in terms of lower crop yield expressed as EUR/kg nitrogen (or similar)? I understand that...

15 February 2021 1,323 3 View

Are there alternatives to the Devarda alloy when estimating nitrogen?

Are there alternatives to the Devarda alloy when estimating nitrogen? devarda alloy is reducing the nitrate to ammonium

15 February 2021 8,838 3 View

About XRD details of pristine and doped RGO?

Hi Can anyone please help me know the XRD details of reduced graphene oxide, Nitrogen doped reduced graphene oxide, Sulphur doped reduced graphene oxide, Nitrogen and Sulphur co-doped reduced...

08 February 2021 3,033 3 View

How to make Fast Green FCF from powder?

Hi everyone We need Fast Green to electroporate plasmid into mice embryos, therefore we simply need it to see some color in the liquid we are electroporating so that electroporation is more...

07 February 2021 1,671 2 View

Which is the best software for the simulation of tribological properties of materials?

I want to simulate the tribological properties of solids, liquids, and fluids, please suggest good software.

02 February 2021 3,947 3 View