Abdullahi Abbas Adam

17 Questions 26 Answers 0 Followers

Questions related from Abdullahi Abbas Adam

Does applied voltage affects EIS measurement?

I would like to know how varying the applied voltage affects impedance measurement using an Autolab workstation.

03 February 2023 5,094 6 View

How do you calculate |Z| from EIS plot?

Given the real and imaginary impedance values (Zr and Zi) and the frequency, how can I determine the |Z| values of polymer electrolytes?

03 March 2022 1,317 2 View

What are the limitations of Bayesian and Convex optimization techniques?

I want to know what are the shortcomings of the two techniques and how did they differ from RSM. Also, are they artificial intelligence algorithms or not. Thank you

29 January 2022 2,276 9 View

Why is imaginary impedance much lower than the real counterpart?

I observed the values of Zi for my sample is much lower (about 1 order of magnitude) than Zr? Please what is the physical interpretation of this result?

07 December 2021 4,884 2 View

Organic salt based polymer electrolytes?

Why are there no reports on polymer electrolytes containing organic salts as ion donors? Are these salts not suitable for energy storage?

17 June 2021 4,752 1 View

Can I use glass petri dish as a coagulating bath?

I want to prepare a porous membrane via nonsolvent induced phase separation (NIPS). I don't know if I can use a glass petri dish for the coagulating process. Your valuable suggestions are highly...

24 April 2021 3,487 4 View

What does negative bulk resistance mean for an electrolyte?

I obtained an EIS graph for my solid electrolyte but it seems the intercept is negative. What does a negative resistance (corresponding to negative conductance) mean?

04 February 2021 9,976 2 View

What is the best way to improve the working potential window of a solid electrolyte?

My solid polymer electrolyte shows low bulk resistance show quite a low bulk resistance. However, the potential window (obtained from LVS) is very small. Please how can I improve the operating...

01 February 2021 3,496 9 View

Is carboxymethyl cellulose a better electrolyte host polymer than methyl cellulose and cellulose acetate?

I want to prepare a cellulose-based biopolymer solid electrolyte by solution casting technique. However, choosing the right cellulose derivative has been my major challenge. Among the many factors...

31 January 2021 5,505 3 View

What is the suitable solvent to completely dissolve wheat flour?

I tried to dissolve wheat flour in different solvents; DI water, dilute acetic acid, dilute acrylic acid and ethanol. The flour seems not to dissolve perfectly in any of these solvents. Could...

21 January 2021 5,927 6 View

Is freeze-drying a compulsory step to prepare hydrogel?

I have been trying to prepare PVA based hydrogel by drying the viscous liquid in air atmosphere but the hydrogel isn't formed every time. Is skipping the freeze-drying process responsible for not...

28 December 2020 3,347 6 View

What is the difference between gravimetric capacitance, volumetric capacitance, areal capacitance and specific capacitance?

I have seen the terms "gravimetric capacitance", "volumetric capacitance", "areal capacitance" and "specific capacitance" used severally in different places but I cannot clearly distinguish...

10 November 2020 2,261 4 View

What is the difference between nanofiber and nanofibril?

Nanofibril is a term that keep confusing me when reading research articles. I always find it difficult to distinguish between nanofibril and nanofiber.

21 September 2020 8,203 4 View

How can I calculate the elastic modulus of nanofibers?

I want to measure the elastic limit of fibers. Please what is a suitable device/method?

05 July 2020 3,830 1 View

Where can I buy ZnO nanoparticles?

Is there any way I can buy ZnO nanoparticles instead of synthesizing them?

28 June 2020 3,344 12 View

Are ZnO nanoparticles better than SiO2 nanoparticles in terms of properties and cost?

I want to incorporate ZnO nanoparticles into CNF. SiO2 nanoparticles have being used previously. I am looking for justifications to use ZnO as an alternative to SiO2.

16 June 2020 3,600 10 View

What are the advantages of carbon nanofibers over carbon fibers?

So many researches in carbon nanofiber production aim at decreasing fiber diameter to 100nm or less. What are the fascinating properties of carbon nanofibers over the carbon fibers?

16 June 2020 8,076 15 View