Nova-Autolab- Current measurements ?

More Deepak Sridhar's questions See All

Wired ghost image- In a TEM image. What might be the cause?

I am wondering what that ghost thick outline, which is around the carbon wire image which I have attached. I did prepare my sample in a different method (sonication-dispersion in Acetone- and...

31 December 2019 1,200 10 View

No/less features when electrodes tested in two electrode cell rather than 3 electrode cell?

Determination of the Specific Capacitance of Conducting Poly... The above article is a classic paper comparing two and three-electrode measurements for supercapacitors. There are many papers...

09 October 2019 599 1 View

How is charge density of a monolayer oxide calculated?

Hello there, Often in the literature, monolyer charge density is available for metal oxides. For example; Ni(OH)2 monloyer charge desnity is 524 microC/cm2. For Ag, 2.10 C/m2 . But how is this...

07 August 2018 5,708 1 View

How do I account for the contribution to the H evolution to the Qc?

I am calculating the charge on a metal electrode and I am pretty sure there would be some H evolution in the far left end. So do I account this. What is best technique to subtract this charge...

04 May 2018 7,141 1 View

Mass of Oxide layer naturally directly formed on the metal?

Hi there, How do I find the mass of the oxide directly formed on a metal? Eg, say I have copper. I would oxidize it to form copper oxide. How can I calculate the mass of the oxide? JUST THE OXIDE...

03 April 2018 1,611 5 View

What is the typical BET surface area of nickel foam?

Hi there, I have used nickel foam for my various experiments. And the manufacturers usually say porosity

03 April 2018 7,276 3 View

Multiplet splitting in XPS?

The general idea I have is, when we have photo ionised a molecule, vacancy will be created at the core and this vacancy could be filled by the electron in the outer shell (usually transition...

02 March 2018 3,275 7 View

Nickel carbide in carbon fibers/nanotubes after the growth?

Hi there, Commonly known theory for the growth of carbon nano tubes/fibers, is that a metal carbide which is metastable is formed and then this carbide decomposes to form graphene layers and form...

01 February 2018 1,446 1 View

Electrochemical surface area of CNT?

Hi there I want to determine the electrochemical surface area of CNT on a metal substrate. I would be using Randles- Sevcik equation to determine the surface area. But the problem is, which ion...

06 July 2017 4,259 4 View

Thickness of oxide layer using XPS data?

Hey there, I need to find out the thickness of metal oxide layer on a metal using XPS data. How do I do this? Is there any free tool to find this out? And what is the logic used for the...

11 December 2016 1,997 2 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

Who of all of you will help TPEOM to re-originate the Earths atmosphere to it original 5 atmospheric elements/gases?

Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...

06 August 2024 8,716 0 View

How does one derive the standard deviation of a scale?

Dear all, I am working on analyzing data from a survey on student satisfaction. The survey contains items with a 7-point Likert response format that produce 12 scales related to different areas...

05 August 2024 2,141 4 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

What can i do to find the right topic for my thesis?

i am facing the difficulty to find the right and latest topic for my thesis. i searched and read hundreds of articles but i couldn't find the right one. what can i do I'm really confused.

02 August 2024 1,323 8 View

Can anyone provide me with molecular docking softwares/ websites?

Molecular docking software/ websites?

02 August 2024 8,704 7 View

Do we save MSMEs of the Nation ?

SMEs are backbone of the country's white economy, most of them are II generation entrepreneurs and migrated from family owned business policies, and having sufficient higher educations for...

01 August 2024 5,562 2 View

Jorge D Gamarra

No, you have to add a calculation to turn current into current density since it varies related to your working area

Dominik Schäfer

Note, that I is the usual symbol for current and it's SI unit is A (Ampère).

A/cm2 is a unit of the current density and it's symbol is usually j (or sometimes J).

Deepak Sridhar

Actually: It is just Amperes- if you want the J who just have to use the surface area