Subanta Majumdar

6 Questions 6 Answers 0 Followers

Questions related from Subanta Majumdar

How can I know how much volume of Hydrazine hydrate required for reduction of particular amount of Graphite oxide at 100 degree centigrade?

I have prepared graphite oxide from the reaction of graphite,KMnO4,H2SO4 and H3PO4.For reduction of 300 mg of GO I used 600 microlitre hydrazine hydrate and 900 microlitre ammonia...I have got...

05 May 2015 7,250 1 View

Can the presence of unreacted graphite in graphite oxide be known from Xrd analysis of graphite oxide?

I have a 43 degree peak in Xrd of graphite oxide.In some literatures it is written that it is due to the presence of unreacted graphite

02 February 2015 9,619 6 View

In my exfoliated graphite sample the G band is very low but the D' peak is of much higher intensity. what is the explanation behind this?

I have exfoliated graphite in DI water for couple of hours but by doing this I am getting much higher intensity D' peak than G band

02 February 2015 6,121 4 View

Why are temperatures between 95 and 100 degrees centigrade optimum for reduced graphene oxide synthesis by Hydrazine from Grephene oxide?

In most papers 95 to 100 degree centigrade is used to synthesize RGO. Why arent temperatures above 100 degree like 150,200,250 used to synthesize graphene?

02 February 2015 9,446 3 View

What is the best technique to separate un-reacted graphite from graphite oxide produced by Hummer's method?

I am having difficulty to separate unreacted graphite from graphite oxide.

02 February 2015 3,477 5 View

What should be the monolayer flake size of graphene for application in electronic devices?

I am trying to synthesize graphene by the following process-Graphite powder (

09 September 2014 6,738 3 View