Muhammad Fahad Ehsan

8 Questions 86 Answers 0 Followers

Questions related from Muhammad Fahad Ehsan

Why H2 can't be detected in GC when He is carrier gas?

When He is used as carrier gas in GC, why can't we detect H2?

11 November 2014 1,600 3 View

What is the oxidation potential for methanol, formaldehyde and formic acid?

Can anybody please help me with the oxidation potentials (vs SHE) for CH3OH, CH2O and HCOOH? Thanking in advance and looking forward to the kind help! Regards, Fahad

11 November 2014 3,542 10 View

A modern-day research: Quantity or Quality?

In your opinion, what do you think about the recent scientific research in terms of the main stream? Is it quantitative (only to have papers) or still the majority believes in the quality only? I...

06 June 2014 6,812 15 View

How do you calculate quantum yield (%) in photochemical reactions?

I have used nanocomposite material for the photoreduction of CO2 into CH4. How do you claim the conversion in quantum yield? And/or find the amount of fuel energy converted relative to the solar...

05 May 2014 5,870 10 View

Can anyone help with a common cation heterostructures e.g. AB/AC?

In the hybrid microstructures with constituents i.e. AB/AC with a common cation "A". Can anybody help me that how does this common cation "A" would benefit the formation of heterojunction? How...

05 May 2014 6,984 1 View

What is the method to differentiate between a p-type and an n-type semiconductor?

Is there any specific method that confirms whether a semiconductor is p-type or n-type?

04 April 2014 1,892 29 View

What are the surface energies of different crystal planes in ZnO?

I have synthesized ZnO. Attached please find the XRD. From HRTEM, I confirmed that the exposed crystal plane is (002). I want to know which crystal plane is more reactive in ZnO and how we can...

04 April 2014 814 2 View

How does the distance between conduction band edge (vs SHE) and reduction potential of CH4 for CO2 reduction affect photocatalytic efficiency?

The reduction potential for CH4 at pH 7 is ~ -0.24 V. If we have two possible situations where in one case the conduction band position for the semiconductor is -0.35 V and in other case it is...

04 April 2014 7,892 3 View