Hello everyone. Can anyone tell me that what kind of carbon coated grids I should use for TEM characterization of my samples which are nanocomposites of graphene-polyaniline-metal-oxide nanoparticles which are being suspended in organic solvents.
In the sample that you have mentioned both Mo grid and holey C grids can be used. Usually due to higher cost of Mo grids the later can be used for frequent studies. However if EDX is required then one may opt for Mo grid.
I recommend you to use molybdenum grids instead. For two reasons; 1- Tougher than carbon. 2- Mo is also not included in the compound under investigation.
Mo is not an element under investigation !!! How do you know that??
Holey carbon grid will do fine.. see this paper: doi:10.1038/srep01765
Dr. Sridhar Vadahanambi, I meant it is not included in Mr. Ratnanjali`s samples. I meant in order to avoid the overlap of x-ray signals from carbon grid and graphene if EDX point analysis or SAED is used. Something like what is discussed in this article, http://www.soquelec.ca/calibspec90-92niox.asp. If I am wrong, please correct my idea. Thank you
In the sample that you have mentioned both Mo grid and holey C grids can be used. Usually due to higher cost of Mo grids the later can be used for frequent studies. However if EDX is required then one may opt for Mo grid.
Neither molybdenum grids nor holey film are needed for your observation. Plain Cu grids with carbon film are the best. If you do need to perform EDS, you may want to choose grid material (Cu, Ni, Mo, Au) to minimize peak overlapping.
When carrying out HRTEM of nanoparticles it is generally better to use holey carbon grids (and observe any particles hanging out). We do use them a lot. But I agree with Vladimir that simple copper grids should do the job. However Ratnanjali you should be very careful to make a thin film of your composite otherwise any high resolution work will be limited
you can use grids that coated with formwar so it suitable to nanoparticles
With newly designed and patented grids, it is possible to view specimens using the grid itself as a support. No carbon or former support is needed! M-Bond glue may be used to facilitate adhesion for specimens that are not flat. see examples here: www.EXpressLO.com, www.YouTube.com/LAGiannuzzi/videos
@Lucille A Giannuzzi
Are you going to place your non relevant advertisement in all microscopy threads? Bad practice.
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