Mazdak Hashempour

7 Questions 40 Answers 0 Followers

Questions related from Mazdak Hashempour

What are the parameters negatively affecting the diffusion limited current densities of the ORR in RDE method?

As the name of the diffusion limited region suggests, the main parameters influencing current density level in this region are those with direct influence on diffusion of oxygen towards the...

09 February 2015 7,963 14 View

Does the π–π* transition component of C 1s XPS spectra imply any facts about the electrical conductivity of carbon?

As an indication of the graphitic nature of carbon materials such as carbon nanotubes (CNTs), graphene and reduced graphene oxide (RGO), usually the high resolution narrow scan of C 1s spectra of...

03 February 2015 1,474 23 View

What are the necessary constrains in making line shapes for fitting the XPS data to models for the peak deconvolution?

Usually the interpretation of the XPS spectra requires data elaboration and curve fitting to find models composed of several peaks under a convoluted peak, each representing a different transition...

31 July 2014 8,855 11 View

Does anyone have experience with the filiform corrosion of Magnesium and its alloys?

Recently, in a work on ZK60 magnesium alloy and its corrosion behavior change due to different mechanical treatments (mainly ECAP), we observed a sort of filiform corrosion (the electrolyte was...

31 July 2014 3,301 6 View

What is the difference of Internal Resistance (Ri) & Equivalent Series Resistance (ESR) in the context of supercapacitors’ resistance & power density?

Equivalent Series Resistance (ESR) and Internal Resistance (Ri) are two measures for the evaluation of a supercapacitors' resistance. The former is evaluated through the electrochemical impedance...

19 July 2014 3,188 10 View

Does anyone have any experience or any idea about the reliable parameters for an aluminum alkoxide based thin-film Sol-Gel process?

I need to find a reliable recipe for an aluminum alkoxide based Sol-Gel process to incorporate my CNT catalyst precursor in it and after calcination, put it in the CVD reactor for CNT growth. My...

23 June 2014 7,326 8 View

Should I use TGA or XPS for determining the Pt loading of carbon support in PEM & DM fuel cells?

After the catalyst synthesis and decoration of the support materials (carbon species in this case decorated with Pt nano-particles, by any method), one needs to know “how much” Pt is there to take...

25 May 2014 5,987 14 View