Acceptor-type hydroxide graphite intercalation compounds electrochemically formed in high ionic strength solutions.

The intercalation of hydroxide ions (OH) into graphite formed graphite intercalation compounds (GICs) in high ionic strength solutions. GICs of solvated OH anions with two water molecules (OH·2HO) in alkaline aqueous solutions and GICs of only OH anions in a molten NaOH-KOH salt solution were electrochemically synthesized.