“…As a result, the salt can be recovered and reused. 27–29 On the other hand, most salts possess metal ions in their structures, which are capable of catalyzing various reactions including producing carbons from various precursors. 30 In addition, owing to the peculiar coordination properties of metal ions in salts, it is feasible to utilize this characteristic to guide the formation of carbon with particular shape, size and morphology.…”