Binder for pellets?

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Change of intensity with doping?

Dear Researchers, I have my samples SnO2 doped with with Cu (1, 2, & 4%). The peak intensity reduces in XRD for 1 and 2%. However, for 4% additional peaks appears which I believe is due to...

05 June 2019 4,806 3 View

CNT-metal oxide combo?

Dear Researchers, Since CNT is not soluble in standard solvents like DI water, ethanol etc, how do I make a doping/composite of CNT and metal oxide. Your suggestions will be highly appreciated....

05 June 2019 6,386 2 View

How to measure the amount of sample (quantum dots) in a solvent?

I have quantum dots dispersed a solvent. If I am considering 2 ml of the solvent, then how do I find out how much is the amount of sample in that solvent? I tried drying the sample to obtain...

03 April 2019 4,333 8 View

Which solvent to dissolve Co3O4 and NiO?

Some literature and RG search mentions a acid solution for dissolving Co3O4 and NiO. Also, for Co3O4 I tried a basic medium of pH 10, but was unable to dissolve. I am not sure incase I am using...

10 November 2018 4,297 0 View

SAED Image analysis?

Dear Sir/Mam, Considering the scale, we measure the distance between the centre and the bright spot of the diffraction pattern. This should tally with the reciprocal of the d-spacing and the...

07 August 2018 3,371 2 View

High temperature hydrothermal reactor?

Kindly let me know the details along with an image of a high temperature hydrothermal reactor operating at 400c to 500c. Thanks and regards

06 July 2018 5,765 3 View

Measurement of Size of Quantum dots?

Dear Sir/Mam, I have synthesized some quantum dots suspended in solvent (DI water) . I am interested in finding the size of those dots. One way would be offcourse HRTEM. But I am interested in...

05 June 2018 8,740 3 View

Synthesis of Graphene Oxide - not by Hummers method?

I am interested in synthesizing Graphene Oxide but not by Hummers method. If any one can suggest from his/her expertise. Also, does other method or even Hummer method ensure a good quality. Also...

05 June 2018 2,962 0 View

Screen printers and gas sensing setup?

Dear Sir/Mam/Colleague, What kind of Screen Printers do I use to deposit thin films? If possible provide me with a link of the description of the instrument. Also, what will be the approximate...

09 October 2017 9,136 0 View

Writing a project?

I worked on metal oxides and its application for gas sensors. Now I intend to write a project, and found Bio-sensors (using metal oxide) as a very interesting project. My doubt lies, whether the...

07 August 2017 5,478 0 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

Surender Kumar

Use PVA (Polyvinyl alcohol). Take 4-5 gm add in 100ml water. Place on hot plate, keep stirring and heating. Dissolve in 30 minutes. Enjoy.............

Sandip Pchoudhury

What should be the temperature of the hot plate?? and how much of the solution should I use as binder for 1gm of SnO2? These details would be of great help