Abhijeet Ojha

8 Questions 19 Answers 0 Followers

Questions related from Abhijeet Ojha

What is the chemical effect of Graphene oxide cross-linking with metal ions?

I am exploring the effect of cross-linking between the graphene oxide nanosheets by mono and multivalent cations. How a metal ion reacts with GO nanosheets and what chemical changes it will...

09 September 2018 9,570 3 View

How can UV-Vis spectroscopy be used to calculate lateral dimension of 2D nanosheets?

I am trying to calculate the lateral dimensions of prepared graphene oxide nano-sheets dispersed in water, several articles have indicated that UV Vis can be used as a tool to do so . However, i...

02 February 2018 8,167 3 View

Is it possible that the surface functional groups of graphene oxide (GO) will be fully subsided due to the excessive ultrasonication?

I am studying the effect of extended ultrasonication on the synthesized graphene oxide nanosheets ( specially on the activity of surface oxy-functional groups ).

01 January 2018 9,046 6 View

How the polydispersity of graphene oxide nanosheets synthesized by hummer's process can be minimized ?

I am preparing the GO nanosheets using Hummer's process, but synthesized nanosheets are of very high polydispersity in terms of lateral dimensions. Is there any method by which the polydispersity...

12 December 2017 386 3 View

What are the suitable degassing conditions for Graphene Oxide and its derivative gels?

I have synthesized Graphene oxide based gels through cross-linking of GO nanosheets by metal ions of various valencies. What should be the optimum degassing conditions for its lyophilized form ?

11 November 2017 4,455 5 View

Is it possible to segregate graphene oxide nanosheets from a solution on the basis of their lateral dimensions?

I have an aqueous solution of exfoliated graphene oxide ( by ultrasonication) , Now if i wish to segregate these nanosheets on the basis of their lateral dimesions, how can i do so.?

10 October 2017 9,719 3 View

What is the effect of pH on aqueous dispersion of graphene oxide?

I am looking for the stability of aqueous dispersions of graphene oxide at various pH, can anyone describe me what should me my actual methodology to do so.? Also why these dispersions are most...

06 June 2015 4,272 1 View

I'am trying to prepare an electrode from GO-electrolyte gels, but the gels are coming out in the electrolyte solution , how can i solve this issue.?

I am trying to make an CV electrode using my GO-Electrolyte based gels mounted on glassy carbon. But after few minutes the mounted gel is coming out into the electrolyte solution (KOH). How can i...

01 January 1970 8,609 0 View