Iftikhar Ali Sahito

12 Questions 22 Answers 0 Followers

Questions related from Iftikhar Ali Sahito

How to identify the graphene sheets are produced via chemical reduction or they are grown by CVD?

What indications and methods can be employed to identify or mark if the graphene nanosheets were chemically reduced by have hummers method synthesized GO or they were produced via chemical vapour...

10 October 2018 9,313 1 View

Fabrication and design difference between a conventional DSSC and low intensity DSSC?

I have read that DSSC works good in low intensity light, but is there any fabrication or design difference between a conventional DSSC and low intensity DSSC? Is the low temperature sintering...

10 October 2018 9,575 2 View

What is the surface charge on N719 or other dyes used in Dye-sensitized solar cells?

All the dye particles are either cationic, anionic or nonionic in nature. However most of the dyes are either cationic or anionic. How about dyes used for Dye sensitized solar cells like N719 or D719

10 October 2018 8,843 0 View

Solubility of PVdF polymer in acetonitrile

Hello, Can a PVdF polymer with average molecular weight of 107 kDa be easily dissolved in acetonitrile at room temperature?

07 July 2017 7,299 5 View

What is the science behind the de-aggregation of organic dye using deoxycholic acid (DCA)?

How does the DCA works to lessen the aggregation of organic and other dyes to be used in a dye sensitized solar cell. I want to understand its effect on the dye or interaction with the dye to...

12 December 2015 8,573 1 View

Can we observe functional groups of solid materials like fabric, through UV-Vis spectroscopy? Or we can do it only for solutions?

Thanks in advance for your replies.

04 April 2015 3,805 7 View

Can someone help me understand the peaks of Cyclic Voltammogram (CV) curve?

My major is not related to electrochemistry, however, I need to understand the electrocatalytic activity of my graphene coated material. I have a obtained a CV curve for my graphene materials (GO...

01 January 2015 8,941 14 View

How can I carry out activation of Pt as a catalyst in DSSCs?

We normally anneal drop coated or sputtered Pt (H2PtCl6) for its activation as catalyst in DSSC. The process is around 400 C for 20-30 min. Is there any other way by which Pt can be activated...

08 August 2014 2,224 4 View

Who can share their knowledge on the chemical reduction of copper (II) oxide aqueous solution to copper metal?

Is there a way to chemically reduce suspension or solution containing copper (II) oxide powder, back to copper metal. I know with Copper (II) oxide powder I can make copper sulfate, copper nitrate...

06 June 2014 10,037 9 View

Can some one explain the charge on GO at pH 2?

I am trying to treat cotton fabric with GO solution and cotton fabric has negative charge on its surface. I have heard that GO also has negative charge so negative negative will repel. But I am...

02 February 2014 4,587 1 View

Can someone tell me by which instrument we can measure surface charge of a material, like fabric?

I need to measure surface charge on my fabric sample.

02 February 2014 4,499 7 View

Can any one tell me that which solvent can easily dissolve copper (II) oxide nanoparticles (less than 50 nm)?

Copper (II) oxide nanoparticles are insoluble in water. I have heard about diluted solvents which can dissolve but the process is too slow.

11 November 2013 6,176 8 View