How to measure specific surface area of graphene or CNT thin film growth on silicon substrate?

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What is the physical meaning for the D-band (1350 cm-1), G-band (1580 cm-1) and G*-band (2700 cm-1) peaks for graphene in Raman analysis?

Is there any physical meanings for broad G*-band (2700 cm-1) peak for graphene in Raman analysis? Does anyone have experience with this analysis?

08 September 2014 1,650 29 View

How to estimate the number of layers of graphene from Raman analysis?

Also, is there a difference between CNT, graphite and graphene based on Raman analysis? I am dealing with carbon nanomaterials.

09 October 2013 7,018 3 View

How to convert from waste palm oil to methane?

I want to use methane as a starting precursor for graphene growth. At the same time, waste palm oil is utilized as a starting source for the formation of methane.

08 September 2013 4,847 2 View

How to remove ferrocene coated on quartz glass?

Ferrocene coated on quartz glass

08 September 2013 3,807 1 View

How to remove native oxide growth on copper or nickel foil?

03 April 2013 4,998 11 View

What is the minimum standard range of water resistivity for the semiconductor industry?

11 December 2012 4,297 2 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

Who of all of you will help TPEOM to re-originate the Earths atmosphere to it original 5 atmospheric elements/gases?

Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...

06 August 2024 8,716 0 View

How does one derive the standard deviation of a scale?

Dear all, I am working on analyzing data from a survey on student satisfaction. The survey contains items with a 7-point Likert response format that produce 12 scales related to different areas...

05 August 2024 2,141 4 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Question about combustion Kinetics ?

I am currently working on modeling FCC catalyst regeneration and have come across a point of uncertainty that I hope you can assist me with. In my previous models, I have utilized lumped kinetics...

30 July 2024 6,137 0 View