I was acknowledged that true density must be used to compute required amount of nanopowders. How if only bulk density is available from supplier?

More Wei Xian Hong's questions See All

In ANSYS Fluent, adding a line in XY plot by getting its average value can be considered as bulk fluid temperature?

ANSYS supercritical methane in pipe bulk fluid temperature in XY plot

11 December 2016 7,642 1 View

Does ball mill only rely on its RPM for grinding ? How about friction inside the jar?

ball mill, stainless steel media, friction

04 May 2016 2,478 1 View

If diameter of ball mill jar(not planetary type) is too small, is it still able to grind metal pieces into powder? Or just increase RPM will do?

ball mill small RPM

03 April 2016 7,635 3 View

How can I determine the best RPM for Dry Ball Milling machine in order to let the balls to fall from the best angle(s) ?

1. Designing 40cm cylinder 2. Going to grind ceramics.

02 March 2016 4,513 7 View

Will the heat generated in gear tooth transferred to the center of gear and escape through convection?Heat generated will affect efficiency of system?

1. gearing system 2. heat transfer through convection from side surfaces 3. friction between gear tooth 4. how to reduce heat generated instead of using lubricant

01 February 2016 4,288 2 View

Is changing the medium during the experiment overestimate the results?

I am experimenting with cancer and non-cancer cells in a 12-well plate for 4 days with a seeding density 1*10^4/well, however, I noticed that the control group growth rate slows down on D3. Should...

07 August 2024 2,283 2 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 269 3 View

Should I include H atom into C3N5 when i am doing DFT modelling?

Hi all, my experimental XPS results shown that my C3N5 sample consists of N-H bond, hence in this case I should incorporate the N-H bond into my DFT modelling. However, I do notice several papers...

07 August 2024 8,414 2 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

Binder for ZnO nanoparticles in graphite paste electrode?

I have been using paraffin, but the deposited ZnO still detach from electrode. What is the best binder to modify graphite paste electrode with ZnO nanoparticles?

03 August 2024 4,624 3 View

Why chloride turns into chlorine gas in a Downs cell?

I imagine the battery drives the graphite into a carbocation, then chloride is oxidized to donate the electron to the carbocation, but what pushes the lost electrons of chloride to be shared...

03 August 2024 5,384 0 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

How can I calculate formation energy using VASP-Ab-initio?

I would like to calculate the formation energy of P2-Na0.67Fe0.5Mn0.5O2 based on DFT, what should I do step by step. Any help would be appreciated. Thanks.

29 July 2024 8,248 2 View

How to explain the different interaction between soluble and insoluble polymer in water?

Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.

29 July 2024 6,350 3 View

Didericus Hasselman

You may want to fill it with water and determine the amount it takes. Unfortunately, this may also fill the open pores in the particles. Good luck,

Kamil Oster

Have a look at my article in which I described your question:

Article Understanding the heat capacity enhancement in ionic liquid-...

Wei Xian Hong

Thanks a lot Kamil Oster. Will take a deeper look on the paper.