Citation: Xiao Quan Lu, De Fang Dong, Xiu Hui Liu, Dong Na Yao, Wen Ting Wang, Yu Mei Xu. Investigation of the oxidation of hydroquinone at the liquid/liquid interface[J]. Chinese Chemical Letters, ;2010, 21(2): 225-228. doi: 10.1016/j.cclet.2009.09.004 shu

Investigation of the oxidation of hydroquinone at the liquid/liquid interface

College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China

Received Date: 18 June 2009

Fund Project: This work was supported by the Natural Science Foundation of China (No. 20775060, No. 20875077 and No. 20927004), the Natural Science Foundation of Gansu (No. 0701RJZA109 and No. 0803RJZA105) and Key Projects of Scientific Research Base of Department of Education, Gansu Province (No. 08zx-07).

The oxidation of hydroquinone(QH₂)was investigated for the first time at liquid/liquid(L/L)interface by scanning electrochemical microscopy(SECM).In this study,electron transfer(ET)from QH₂ in aqueous to ferrocene(Fc)in nitrobenzene (NB)was probed.The apparent heterogeneous rate constants for ET reactions were obtained by fitting the experimental approach curves to the theoretical values.The results showed that the rate constants for oxidation reaction of QH₂ were sensitive to the changes of the driving force,which increased as the driving force increased.In addition,factors that would affect ET of QH₂ were studied.Experimental results indicated ion situation around QH₂ molecule could change the magnitude of the rate constants because the capability of oxidation of QH₂ would he affected by them.
- SECM,
- Electron transfer,
- Liquid/liquid interface,
- Hydroquinone
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