申请人:Wisconsin Alumni Research Foundation
公开号:US11021441B2
公开(公告)日:2021-06-01
Substituted hydroquinones and quinones and methods of synthesizing such compounds are disclosed herein. The substituted hydroquinones have the formula:
while the substituted quinones have the corresponding oxidized structure (1,4-benzoquinones). One, two, three, or all four of R1, R2, R3 and R4 comprise a thioether moiety and a sulfonate moiety, and wherein each R1, R2, R3 and R4 that does not comprise a thioether and a sulfonate moiety sulfonate moiety is independently a hydrogen, an alkyl or an electron withdrawing group.
The substituted hydroquinones and quinones are soluble in water, stable in aqueous acid solutions, and have a high reduction potential in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.
本文公开了取代的氢醌和醌类化合物以及合成此类化合物的方法。取代的对苯二酚具有以下式子
而取代的醌类具有相应的氧化结构(1,4-苯醌)。R1、R2、R3 和 R4 中的一、二、三或全部四个包含硫醚分子和磺酸分子,其中每个不包含硫醚分子和磺酸分子的 R1、R2、R3 和 R4 独立地是氢、烷基或取电子基团。
取代的对苯二酚和醌类可溶于水,在酸性水溶液中稳定,在氧化形式下具有较高的还原电位。因此,它们可用作新兴技术中的氧化还原介质,如介导燃料电池或有机介质液流电池。