Gravimetric measurement in redox polymer electrodes with the EQCM beyond the Sauerbrey limit

被引：44

作者：

Etchenique, RA ^{[1
]}

Calvo, EJ ^{[1
]}

机构：

[1] Fac Ciencias Exactas & Nat Buenos Aires, Dept Quim Inorgan Analit & Quim Fis, INQUIMAE, AR-1428 Buenos Aires, DF, Argentina

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 1999年 / 1卷 / 05期

关键词：

electrochemical quartz crystal microbalance; viscoelasticity; Sauerbrey; microgravimetry; redox polymer; hydrogel; acoustic wave; quartz crystal impedance;

D O I：

10.1016/S1388-2481(99)00031-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Gravimetric measurements during electrochemical redox switching of an Os-containing hydrogel film in contact with aqueous electrolyte have been obtained beyond the Sauerbrey rigid mass limit of the electrochemical quartz crystal microbalance (EQCM). For an acoustically non-rigid film the frequency-to-mass Sauerbrey relationship is not valid and the mass has been obtained from the experimental electroacoustic impedance data collected simultaneously with electrochemical experiments interpreted using Martin's viscoelastic model. (C) 1999 Elsevier Science S.A. All rights reserved.

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页码：167 / 170

页数：4

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