Scheme 1. Schematic drawing shows in situ fabrication of ErCl3 pseudocapacitor.
Firstly, the electrode was fabricated with the use of commercial ErCl36H2O salts by
slurry-coating manufacturing. Then, ErOOH colloids were in situ crystallized by
electric-field assisted chemical coprecipitation, and subsequently integrated into
practical electrode structures. At the same time, pseudocapacitive Faradaic reaction
was occurred at the same electrode. In situ crystallized ErOOH colloids can enhance
electrochemical utilization of active Er cations.
0 50 100 150 200 250 300 350
-0.1
0.0
0.1
0.2
0.3
0.4
3A/g