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Questions related from Qaiser Ali Khan
I am melting Zn based solution in furnace, the solution is in Ceramics crucibles but after heating at 900 C the obtained powder is dark grey colour (Not white) is sticking hardly to crucible (so...
08 August 2018 1,264 14 View
Dear Researchers: I am wondering after getting FT-Raman spectra, Ge Diode of Graphite, Graphene oxide and Graphene. All results shows only one peak (2D) around 2900-3100 cm-1 , even graphite...
05 May 2018 9,866 4 View
I am fabricating multi-layer PDMS stamp for nano lithography. Unfortunately I am not able to get good pattern transfer from silicon template after molding on the template. After fabricating, for...
04 April 2018 7,363 5 View
Hallo: I want to see the exchange current in charge transfer reactions at TiO2 films -0.6M NaCl solution interface.I want to know about the redox potential of my solution as its very important to...
03 March 2017 5,392 4 View
I have measured and got MC plots for titanium oxide on titanium substrate. Measurements were done with different pre-polarization time galvanstatically. On some samples i have received negative...
01 January 2017 1,349 18 View
Well, Its kind of annoying to get Impedance/OCP results different for every new sample. Samples prepared and processed with same parameters and using same pH electrolyte. Samples are commercial...
01 January 2017 4,841 1 View
I want to measure pre polarization potentiostatic (for different times), So can i use same working electrode for different measurements while not changing my solution and working electrode, or...
01 January 2017 8,042 4 View
I am interested in Graphene nanoparticles to be used as super hydrophobic and anti-reflective smart coatings. I haven't started any experimental techniques but doing literature review for my...
06 June 2016 4,648 3 View
I have received XRD results of Graphite, GO and Graphene sample. I got peak of highest intensity at 26degree in graphite sample. The intensity of peak at 26deg is reduced and other peak with small...
04 April 2014 2,148 6 View
What ranges of D and G peaks will suggest that Graphene and Graphene Oxide is synthesised as in the literature there are alot of variations like D peak ranges from 1320 to 1365 G Peak ranges from...
02 February 2014 9,718 28 View
I am doing sonication of graphite oxide to graphene oxide, so can I do replacement of sonication?
01 January 2014 3,247 3 View
I am working to check the effect of particle size on the quality of graphene.
11 November 2013 8,370 5 View
In order to enrich sample with graphene it can be centrifuged and I have studied that he speed of centrifugation and starting concentration will influence the final material. So what should I use...
11 November 2013 2,923 3 View
I am working on graphene oxide synthesis by hummer's method and am confused why different chemical methods are used for synthesis of graphene oxide: Staudenmaier, Hofmann,Brodie and then...
11 November 2013 6,751 17 View
I am working on synthesis of graphene. I have studied almost every paper in which sonication is done but the authors haven't mentioned the type of sonication used. Should I go for mechanical...
11 November 2013 9,264 20 View
I am adding Cu nanoparticles as reducing agent and not much sure.
10 October 2013 7,593 1 View
