I need a chemical method to purify graphite powder from any impurities
A quick Google search turned up this article on purifying natural graphite from Physicochemical Problems of Mineral Processing, 41 (2007), 37-49.
http://www.ppmp.pwr.wroc.pl/sorpa/file/483f823b45df47cc9e89343b34a568a9/download
There are many methods of purification of graphite powders . Most of them involve acid or alkali treatments while several involve either expansion processes or physical treatments.
Article Purification process of natural graphite as anode for Li-ion...
Article PREPARATION OF EXFOLIATED GRAPHITE USING NATURAL GRAPHITE OF SRI LANKA
Conference Paper HF Acid Digestion for Purification of Vein Graphite
Article USE OF CRYSTAL MORPHOLOGIES TO UNRAVEL THE ORIGIN OF VEIN GR...
Dear Hassan Ahmed Sadek,
I think this depends upon the aim of the graphite.If you want to use it to produce nanotubes or graphene sheets, it needs a purification which uses strong acids. Protocols for this are numerous, but I think I could help you once I know what the purpose of your research is.
kind regards, Harrie Verhoeven
Dear Harrie A Verhoeven , I know that two years have passed and you might not remember the answer of this question, but I want to exfoliate graphite via water and Pluronic F127 using Silverson shear mixer. Should I wash my graphite before performing any lab experiment?
Note that my graphite is: Graphite flakes, 99% carbon basis, -325 mesh particle size (≥99%), natural.
One more question, if I want to perform TGA characterization for pristine graphite; i want to burn graphite under airflow, should I also wash the graphite before putting it in the pan for TGA analysis? Thanks in advance.
- Badges
- Science method
- Similar topics
- Chemistry
- General Biochemistry
- Biochemical Techniques
- Analytical Chemistry