研究者情報 | 神奈川大学

ホリ　ヒサオ Hori Hisao 堀　久男所属神奈川大学理学部理学科神奈川大学大学院理学研究科理学専攻（化学領域）職種教授
言語種別	英語
発行・発表の年月	2024/05
形態種別	学術雑誌
査読	査読あり
標題	Efficient Mineralization of Lithium Bis(pentafluoroethanesulfonyl)imide and Related Electrolyte Fluorochemicals Using Superheated Water
執筆形態	共著
掲載誌名	ACS Omega
掲載区分	国外
出版社・発行元	American Chemical Society
巻・号・頁	9(20),pp.22398-22409
担当区分	筆頭著者,責任著者
著者・共著者	Hisao Hori, Keisuke Okamura, Kaito Suzuki, Michael Biermann
概要	Lithium bis(pentafluoroethanesulfonyl)imide, Li[N(SO2C2F5)2], a typical fluorochemical aimed at better electrochemical performance of battery electrolytes, in superheated water was studied for its waste treatment. When Li[N(SO2C2F5)2] was reacted in pure superheated water at 300 °C, little F− ions were produced. In contrast, complete mineralization of the fluorine, sulfur, and nitrogen atoms in Li[N(SO2C2F5)2] was achieved when the reaction was performed in the presence of KMnO4. Specifically, when Li[N(SO2C2F5)2] was treated for 18 h with 158 mM of KMnO4, the F− and SO42− yields were 101 and 99%, respectively, and the sum of the NO3 − and NO2− yields was 101%. In the gas phase, trace CO2 was detected and no CHF3, which has high global warming potential, was formed. Furthermore, the fluorine, sulfur, and nitrogen atoms in the analogues K[N(SO2C4F9)2] and K[N(SO2CF2)2CF2] also underwent complete mineralization using the same approach.
DOI	10.1021/acsomega.4c02097