Why hydrogen is used with methane in CVD graphene synthesis process?

A Z M Nowzesh Hasan @A_Z_M_Nowzesh_Hasan

05 May 2018 0 3K Report

Due to the heat at 1000 C, methane is decomposing by following the endothermic decomposition reaction and the by product is hydrogen. Then, why hydrogen is used with methane in CVD graphene synthesis process from the beginning?

Badges
Science topic

More A Z M Nowzesh Hasan's questions See All

Why Palladium is not used for graphene FET electrode?

For metal evaporation, cost of Au and Pd pallets are comparable. But in most of the cases, Au electrode is widely used though the work function of graphene under Au is lower than graphene under...

10 November 2018 2,002 0 View

What is the best way to measure capacitance of graphene transistor?

10 November 2018 1,785 0 View

What is thermal smearing?

What is thermal smearing? Is there any particular model using mono-layer graphene? Does it follow Gaussian or Fermi smearing?

10 November 2018 7,520 2 View

How can we measure threshold voltage of graphene FET using CV characteristics?

10 November 2018 646 0 View

Electrochemical impedance spectroscopy can measure C-V characteristics for graphene FET?

Electrochemical impedance spectroscopy can measure C-V characteristics for graphene FET? Can anyone share the detail experimental settings?

10 November 2018 9,479 0 View

How can I model ionophoretic membrane in terms of double layer capacitance?

How can I model ionophoretic membrane in terms of double layer capacitance in graphene solution gated FET sensing?

06 July 2018 2,251 0 View

What is label free detection? What is the advantage in this process?

05 June 2018 10,202 0 View

In CVD graphene synthesize process, which factors are playing role in absorbing carbon on metal surface which is self-limiting?

04 May 2018 338 0 View

Does ions take part in electric conduction in bilayer graphene?

Graphene due to its ambipolarity, can transport electricity with electrons and holes. But does any ion take part in this transportation? How holes are generated? How can I calculate...

01 February 2018 2,756 2 View

How can I calculate carrier generation and recombination rate from the total carrier density for graphene?

31 December 2017 6,800 0 View

What procedure should I follow for current controlled PPy film electrochemical deposition on ITO?

For example, I perform passivation process before electropolymerization of Py for adhesion to titanium surface. Is a similar or different procedure required for ITO? If necessary, I would be glad...

06 August 2024 3,176 0 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

People weight in Oaxaca Blinder Decomposition on R?

Hello guys! Do you have experience running a Oaxaca-Blinder decomposition on R applying person weights. How do you suggest doing it? I have a variable PERWT which gives more information on how...

04 August 2024 6,033 0 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

How to Transform my handy-wavy explanation of why group I/II metals oxides in aqueous solution are basic into a rigorous argument?

I heard an explanation about something being a better proton acceptor or lone pair donor but that doesn't make sense. I couldn't explain in in terms of acid-base theory. The hand-waving way I saw...

03 August 2024 9,918 0 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

What is the ionic radius of Hydrogen anion? And how to know the exact ionic radii of the elements?

I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...

01 August 2024 2,614 1 View

Is it possible to improve the reforming section of the Haber-Bosch process without using air separation units?

A typical reforming section in a large-scale Haber-Bosch process (Figure 1) comprises two reactors. A mixture of methane (CH4) and steam (H2O) is fed into a primary reformer to produce syngas via...

01 August 2024 7,051 5 View

Best mask design for metal deposition aiming build a Perovskite solar cell device?

What types of mask designs for metal deposition, to be used in a PVD system, are best suited for perovskite-based solar cells?

31 July 2024 4,835 3 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