| 简介 |
PROBLEM TO BE SOLVED : To provide a cation raw material linking a sulfonic acid group and a phosphonic acid group which is useful in synthesizing an ionic fluid to be used in a lithium-ion battery, a fuel cell electrolyte or a solvent for recovering rare earth metals.
SOLUTION : The cation raw material for an ion fluid includes the chemical structure : (X)m-Y-fullerene-(Z)n (wherein X is an imidazole group or a benzimidazole group; Y is S or SO2; Z is a sulfonic acid group, a phosphonic acid group or a precursor thereof; m is an integer of 1-4; n is an integer of 1-10; and m+n=2-12). A process for producing the cation raw material for an ion fluid comprises (step 1) a step of bonding an imidazole group or a benzimidazole group to fullerene, (step 2) a step of bonding a sulfonic acid group, a phosphonic acid group or a precursor thereof to the fullerene, and if necessary, (step 3) a step of oxidizing the sulfide bond into a sulfone bond.
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