Why there is a straight line in my CV curve?

I am scanning CV curves using 3M Na2SO4 electrolyte in Ag/AgCl, Pt mesh and Phos-COF as my positive electrodes, respectively. Every time it gives me straight line at 0. Why this happens?

31 December 2019 3,700 0 View

For supercaps electrode, if my active material mass is 3 mg ans area of my sample is 2*3 cm-2. what will be my current density to apply?

How we can determine the proper value of current density that i should apply to this system? What is the general procedure to select suitable current density to that system which i mention above....

02 March 2019 9,668 2 View

How we can explain this SEM results? NiCo2S4 composite with CNT?

How we can explain this ...

02 March 2019 7,429 3 View

WHY I OBSERVE SUCH TYPE OF BEHAVIOR IN MY CCD OF C@SiOx composite?

I am using 3M KOH as electrolyte with Pt counter as counter and Ag/AgCl as reference electrode for my system.with increasing current density why potential is increases? Is this is unusual behavior...

01 February 2019 9,490 4 View

Why the CV curves area of my electrode is zero below 0V?

Is its a normal behavior? If not, then any reason, any comments, suggestions will be highly appreciated

31 December 2018 557 6 View

What is the current density 0.00001, 0.00005, 0.0002 for Charge-discharge measurements using CHI660D INSTRUMENT?

I am using the desired setup for CCD in my work. my question is, what does these value corresponds to how much current in ... A/g?

31 December 2018 5,160 3 View

How i can calculate cycles number with respect to specific capacitance from CHI660D?

The graph between number of cycles with respect to specific capacitance

31 December 2018 9,000 0 View

What is the technical way to choose potential window of two different materials using as supercapacitors?

I want to use NCS/CNT as cathode and Carbon fiber paper (CFP) as anode for supercapacitor assembly and i want to widen the potential window. My question is; what is the criteria to take anode...

11 December 2018 7,797 0 View

Why the shrinking of discharge time is observed when current density is increased?

NiCo2S4 with 6M KOH electrolyte with Ag/AgCl used as reference electrode

08 September 2018 2,531 4 View

Why Ni foam current is so high without pressing?

I am using 6M KOH electrolyte and tested the behavior of Ni foam without pressure and with pressure. I observed that, with no pressure (without press Ni foam) the current is very high as compared...

03 April 2018 3,736 7 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

Where can I find atmospheric measurement profiles (temperature, density, etc.) between 300-800 km altitude?

I am investigating thermospheric mass density profiles between 300-800 km altitude. I would like to compare the variability with other parameters, including temperature, electron content,...

01 March 2021 5,902 3 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View