Shu Hearn Yu

6 Questions 19 Answers 0 Followers

Questions related from Shu Hearn Yu

Why people do not report the actual RHE potential of HER in alkaline electrolyte?

The redox potential of HER in pH 14 alkaline electrolyte is - 0.826 V (vs. RHE). However, for all the polarization curve I saw in articles, the authors reported the potential from 0 V (vs. RHE)...

29 October 2017 1,908 9 View

Small Tafel slope in HER does not necessarily mean high exchange current density and low onset potential?

Recently I am doing HER experiment by using amorphous MoSx. I controlled the experiment conditions and found that, some samples have low Tafel Slope(which is good) but low exchange current density...

17 January 2017 8,142 2 View

How to find the resistance Z' when -Z'' is not zero in a Nyquist diagram in all ranges ?

How to find the resistance Z' when -Z'' is not zero in a Nyquist diagram in all ranges ? Please see the photo.

15 November 2016 4,314 4 View

How to calculate the theoretical specific capacity of active material in Sodium-ion battery?

I recently read papers related to Na-ions battery. It mentioned different anode materials have theoretical specific capacities. Based on what knowledge do the researchers calculate the...

26 May 2016 9,817 6 View

How to prepare a full coin cell of Sodium ion battery?

I would be appreciated if anyone can provide me the details information to assembly a full coin cell for Sodium ion battery? Any articles related? Thank you.

23 May 2016 2,594 2 View

Which suppliers sell Sodium metal foil?

I am intending to use sodium metal foil for sodium ion batteries testing. May I know where can I get sodium metal foil as I cannot find any Suppliers in Singapore. Do I need to get sodium metal...

14 January 2016 8,340 5 View