How do I calculate specific capacitance for an homogenous electrocatalyst?

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Can I do Parallel Analysis for Principal Axis Factoring Method?

Recently I was suggested to do Parallel Analysis and compare with EV>1 to determine no of factors for my scale. However, the scale I have developed uses Principal Axis Factoring and not PCA. If...

30 June 2024 1,813 2 View

I am running a IV characterization for RRAM device. The switching for only the first cycle is good. I couldn't figure out what is wrong. Help?

I have tried changing compliance current, delay. But I still couldn't figure out.

27 May 2024 512 0 View

Recently I am struggling to purify the full-Length human PARP1 using both pet28a and pet21b vectors. If anyone is getting good yield, protocol please?

Purification protocol for human PARP1 with good yield.

13 March 2024 9,746 3 View

Why my result goes error? Can someone help me to fix this problem?

I've tried NTSYSpc to analysis my diversity data. I've 153 rows, 20 columns in my data and then I'm put it to "similarity" at the app but the result show "End of file encountered when trying to...

26 February 2024 2,514 0 View

What are some key criteria for the computer system used in analyzing Whole Genome Sequencing data set?

Hi everyone, I am a PhD student exploring various genome sequencing approaches and NGS platforms before settling on one for my research. While searching WGS info, I found nothing helpful about...

10 February 2024 6,573 4 View

How can we disaggregate daily precipitation to hourly?

It is required for analyzing the runoff.

09 January 2024 5,626 5 View

Can anyone suggest me the solubility of aspartame in water or buffer as it can be used in cell culture?

I am trying to make 250 mM Aspartame (CAS RN: 22839-47-0) and used autoclaved dist. water as solvent. But after trying with water , cell culture grade ethanol and DMSO with different...

08 December 2023 5,153 1 View

How is damping ratio incorporated for bilinear isolators using elastomeric bearing plasticity element in openseespy ?

Dear fellow connections, i am using elastomeric bearing plasticity element to model 2D bilinear isolators. But here, I also want to assign damping ratio of each isolator, does anyone know how can...

25 October 2023 1,330 0 View

How to assign a viscous damper in sap2000 for absorbing the wave?

I have used exponential damper in model but didnnot worked .At the end of run analysis,I got warning message.

28 September 2023 1,578 2 View

Is there any method to extract building polygon shapefile of some historical timeline (Digitization is not an option as the spatial scale is large)??

Historical building polygon shapefile

27 September 2023 8,273 1 View

What procedure should I follow for current controlled PPy film electrochemical deposition on ITO?

For example, I perform passivation process before electropolymerization of Py for adhesion to titanium surface. Is a similar or different procedure required for ITO? If necessary, I would be glad...

06 August 2024 3,176 0 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

How to calculate conductivity using Electrochemical Impedance Spectroscopy's Nyquist plot?

Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...

29 July 2024 1,376 0 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

Why specific capacitance is not proportional with the specific surface area?

Dear researchers, Why specific capacitance is not proportional to the specific surface area? I have material A with a surface area higher than material B, but material B is showing little bit...

26 July 2024 9,156 2 View

What binder would be the best choice to modify glassy carbon electrode with a 2D Material like Graphene or MXene?

I am trying to drop cast 2D Materials on Glassy Carbon Electrode for Cyclic voltametry and EIS purpose. What would be best binders to use?

23 July 2024 5,776 2 View

How do you decide an optimal AC amplitude for non-faradaic electrochemical impedance spectroscopy?

I work with planar interdigitated electrodes (IDEs). The finger width and the spacing between the fingers are 5 micron. The surface of the IDEs is coated by a non-conductive polymer layer...

16 July 2024 5,031 1 View

Why is EIS important even if the cell is only run under DC conditions?

If impedance is an AC phenomenon, or if AC causes certain cell phenomena to become prominent at certain frequencies, why do we care about them? Under working conditions the cell will be...

14 July 2024 6,321 1 View

How to find Cdl and Cs value from EIS data?

I want to determine ECSA using Cdl/Cs formula, Can CDL be determined from the fitting results or must it be calculated first using this formula? And how to determine the Cs value from EIS data?

12 July 2024 7,495 0 View

EIS spectra analysis software?

Dear all, I'm currently working with CHI potentiostat and performing Impedance. However, for the circuit fitting the instrument must be connected to the computer. Since I prefer to analyse the...

10 July 2024 8,880 4 View