Muhammad Usman

7 Questions 11 Answers 0 Followers

Questions related from Muhammad Usman

What are the materials having a BET surface area higher than 2000 m2/g?

Dear researchers, I am searching to find the list of different materials having surface areas higher than 2000 m2/g. Kindly share the name of the material, its BET surface area with the DOI link....

02 July 2021 9,576 5 View

What is the limit of highest applied potential Vs Ag/AgCl electrode?

Generally, we applied less than -1.0V potential in 0.5M KHCO3 solution in our experiment. Is it safe to apply a high voltage like -3V vs Ag/AgCl? What is the highest applied voltage limit Vs...

06 April 2021 9,027 5 View

Why sometimes Hydrogen permeabilty higher than CO2 during membrane gas seperation. Any explaination?

Dear Colleagues, I am finding the reasons why, some time, CO2 gas permeance/Permeabilty is higher than Hydrogen. I will be thankful to know the reason behind this effect. Also i will be thankful...

08 May 2018 7,041 2 View

Why the BET surface area of a catalyst (Metal/supp) higher than the support?

Has anyone seen such a behavior before? Please share some references. I think the possible reason may be due the pore plugging of the support by the active metal, which causes increase in surface...

30 December 2013 3,762 13 View

In pyridine FTIR, why the peak located at 1490 cm-1 assigned to pyridine adsorbed on both Brønsted and Lewis acid sites?

Pyridine FTIR used to analyse the Bronsted and Lewis acidic sites over a solid catalyst. Pyridine vapour adsorbed on acidic catalysts while FTIR spectra is recorded to show the location of...

30 December 2013 1,755 1 View

Is KHCO3 acts as a source of CO2 in Electrochemical CO2 reduction?

KHCO3 often use as electrolyte for Electrochemical CO2 reduction reaction (ECRR). I am looking to find the answer that whether KHCO3 acts as a source of CO2 or not? Few recent literatures also...

01 January 1970 4,951 6 View

Why it is KHCO3 used as an electrolyte in H-Cell for Electrochemical CO2 reduction?

In Electrochemical CO2 reduction, it is always KHCO3 used as an electrolyte in H-Cell. Why it is the best choice compare to other electrolytes like Na2SO4, NaCl, KOH, etc.

01 January 1970 3,456 4 View