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原位表征技术在水系有机液流电池中的研究进展
张永辉1,2(), 傅杰1, 李先锋2(), 张长昆2()
Research progress on in-situ characterization techniques for aqueous organic flow batteries
Yonghui ZHANG1,2(), Jie FU1, Xianfeng LI2(), Changkun ZHANG2()

图5. 原位反射红外光谱的应用。a CV扫描第一个循环中2,6-DHAQ分子还原和氧化现场原位红外检测光谱的演变。b CV扫描第一个循环中1,5-DHAQ分子还原和氧化现场原位红外检测光谱的演变。c 2,6-DHAQ分子在溶液中与水的氢键作用导致歧化反应的可能过程。1,5-DHAQ 分子在溶液中与水分子的氢键作用不会导致歧化反应发生[15]。d电池循环中电解液的原位反射红外光谱采集[51]。

Fig.5. a Operando FTIR spectra of 2,6-DHAQ during reduction and oxidation processes in the first cycle of CV scan. b Operando FTIR spectra of 1,5-DHAQ during reduction and oxidation processes in the first cycle of CV scan. c The hydrogen bond-mediated degradation process of 2,6-DHAQ. The hydrogen bond-mediated degradation process of 1,5-DHAQ [15]. d On-line ATR-FTIR spectra of DHPS electrolyte recorded during resting, after adding excess zinc and during discharge process [51].