Jacob Johnston

6 Questions 5 Answers 0 Followers

Questions related from Jacob Johnston

How to best characterise a new salt?

I am wanting to synthesize a few aluminium salts. What is the best technique to characterise salts?

04 August 2020 8,742 4 View

How does fluorination affect the solvating ability of a solvent?

I would have thought adding a fluorine to a solvent would withdraw electrons away from the electron donating oxygen (or other electron donating part of the solvent) and thus give it a lower...

18 February 2020 7,830 1 View

Is it possible to boil off HCl from pyridinium chloride salts?

I vacuum dried some pyridinium chloride (AKA Pyridine hydrochloride). This has a melting point of 144C. After drying overnight it stayed as a liquid which makes me wonder if the vacuum drying...

07 February 2020 5,242 4 View

Why does higher ionic conductivity in an electrolyte mean better capacity in a battery?

I would think higher ionic conductivity would mean faster charge and discharge rates, and perhaps a slight bump in capacity due to capacitative effects (E=1/2CV^2), but surely the overall mAh/g...

14 October 2019 5,368 6 View

How best to remove an aluminium oxide layer in a glovebox?

I want to remove the oxide layer on aluminium metal inside a nitrogen glovebox. Is this feasible to do? It is for use in an aluminium battery.

22 June 2019 981 1 View

How do you work out theoretical specific capacity of a battery cell in Wh/kg?

Generally, when working out the theoretical cell capacity, you work out the anode and cathode combined capacity using: Q = (nF)/(3.6M) Where Q is the gravimetric theoretical capacity (in mAh/g),...

25 February 2019 5,089 2 View