Zulfiqar Ali

11 Questions 30 Answers 0 Followers

Questions related from Zulfiqar Ali

How to determine the solute permeability (Ps) and refelction coefficent for membranes computationally from experiemental data?

The asked two parameters are usually determined with the help of Spiegler–Kedem–Katchalsky (SKK) model for membrane evaluations. However, to make the work easier computer programme like Advanced...

28 June 2023 6,266 0 View

May I determine the band gap energy of hydrothermally synthesized MoS2 nanoparticles by Tauc plot method ?

Would it be ok? if I get absorption data simply by making slurry of MoS2 nanoparticles in water and then perform usual calculations in Tauc equation.

22 December 2021 7,678 7 View

What is the ultrasonic testing (UT) procedure of Ti-6Al-4V (Grade-V) titanium alloy ingot of diameter about 14 inch?

Titanium alloys due to their high strength to weight ratio, high temperature corrosion resistance and other superior mechanical properties have been widely used in aerospace industries since...

11 August 2021 7,098 0 View

Is there any cation exchange membrane available in the market which can remove iron in the range 150-175 ppm form 98% sulfuric acid?

Commercial sulfuric acid contains iron impurity of about 150-175 ppm, I want to remove it to the level below 2 ppm. Work has been done with cation exchange resin to solve the problem but at the...

27 September 2020 3,748 2 View

What is the recomended potential Vs Ag/AgCl in 1 M KOH solution to record the electrochemical impedance of any electrode for studying OER kinetics?

The resistance between reference and working electrode is known as (Rs) I.e. solution resistance while charge transfer resistance (Rct), is the resistance between working electrode and solution....

13 April 2020 824 4 View

What are the superior properties which can only be seen/experienced in CNTs but not in Graphene, Graphene oxide or reduced graphene oxide?

Since graphene discovered (2004) later then CNTs (1991) it surpassed the CNTs in respect of many properties like adsorption and chemical catalysis due to high surface area available in case of...

08 August 2018 8,890 5 View

What is turn over frequency (TOF) for assessing the performance of catalysts and how it can be calculated?

For example I have catalyst amount in moles = 3.93593E-05 and catalyzed specie moles are = 1.44231E-06 and rate constant 0.054 per minute. Is this data are used to calculate Turn Over Frequency...

11 February 2018 7,557 27 View

How could I separate CNTS from silica and metallic nanoparticles? which were used as catalysts in CVD setup

From literature it is known that we may use NaOH solution for separation. But how may I filter? what type of filter paper should I use? please detail required.

29 May 2017 4,605 0 View

What is the most important parameter in sol gel process while conversion of sol into to the gel?

I am facing some problems in gelation time when sol of silica is prepared now i want its jelly form it is reported in literature that this should happen with in 2 and half hour but in my case, I...

24 January 2017 7,399 12 View

Can I say particles and grains are same thing?

Can I say particles and grains are same thing? If yes, would it be correct to say during sintering that two grains are going to be bonded?

30 November 2015 1,483 13 View

How to separate magnetic nanoparticles from sticky organic eatable gel composed of carbohydrates and usual additives?

I have tried to synthesis the Nickel nanoparticles in eatable jelly via electrochemical reduction after performing the experiment I observe the black particles which can be confirmed by...

01 January 1970 5,572 7 View