Han-Ching Jao

9 Questions 9 Answers 0 Followers

Questions related from Han-Ching Jao

Can anyone suggest the electrolyte I use?

I prepared Ag-deposited material on V2O5 graphene and tried to use KOH as electrolyte. However, the resulting CV pattern does not seem to have good symmetry. Can someone suggest which electrolyte...

09 January 2019 8,545 3 View

Unable to separate well by centrifugation?

I put the V2O5/GO 0.1g (after calcination) into 50g of 95% ethanol and 50g of deionized water. It is difficult to pass the centrifugal separation again. Is there any reason or improvement?

10 November 2018 904 0 View

Im using graphene aerogel, carbon black, PTFE(8.1.1wt%) but the product isnt chocolate sauce-like slurry. what is my problem?

Ive seen many people done it, and I use ethanol(95%) to suspend PTFE.

17 January 2018 5,605 7 View

What happened to my material? Is graphene completely burned?

According to my TGA data, I used the air atmosphere to calcine my material at 305 ° C (the reaction precursor is mainly the weight of graphene and ammonium metavanadate 150 mg, 900 mg). I took 0.2...

01 January 1970 9,160 3 View

I would like to ask about the EIS cognition and explanation of my map.

I haven't seen such an EIS diagram. I don't know how to compare and explain such a relationship. I chose the frequency from 0.01 to 100khz.

01 January 1970 9,946 0 View

I can't go on my GCD voltage

My material mainly has V2O5 RGO ratio of about 85:15 electrode 8.1.1 material carbon black PTFE electrolyte with NACL CV scanning range -0.1~0.8 But as shown in my picture, I can't charge it.

01 January 1970 657 3 View

Questions about the concentration of vanadium precursors?

It is known in the review of the senior scholars that the formation of VO(OH)3 molecules is very helpful for the formation of vanadium nanostructures. And concentration is one of the most...

01 January 1970 6,601 4 View

Cyclic voltamentary cannot overlap at the same scan rate

I tried to use the prepared v2o5-graphene to test CV 50mVs-1 under 1 M NA2S04 as electrolyte . The cycles can not overlap. The first time this kind of thing can happen, can someone give me any...

01 January 1970 9,926 0 View

Can I use heat treatment to remove the N element inside?

My EDX sweeps out the presence of the N element. I was thinking about the N in ammonium metavanadate.However, there is no specific mention in the literature of the use of heat treatment to remove...

01 January 1970 7,541 4 View