Voltammetric characterization of structural titanium species in zeotypes

被引：17

作者：

Bodoardo, S

Geobaldo, F

Penazzi, N

Arrabito, M

Rivetti, F

Spanò, G

Lamberti, C

Zecchina, A

机构：

[1] Politecn Torino, Dipartimento Sci Mat Ing, I-10141 Turin, Italy

[2] EniChem SpA, Ist G Donegani, Ctr Ric Novara, I-28100 Novara, Italy

[3] Univ Turin, IFM, Dipartimento Chim, I-10125 Turin, Italy

[4] INFM, Sez Torino, Turin, Italy

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2000年 / 2卷 / 05期

关键词：

zeolites; titanosilicates; cyclic voltammetry;

D O I：

10.1016/S1388-2481(00)00021-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

Ti4+ ions structurally contained in titanium silicalite (TS-I) and ETS-10 samples, two nanoporous materials, have been studied by means of voltammetric measurements. Both structurally tetrahedral and octahedral Ti4+ ions show electrochemical response. In particular, by using acid solutions, it was possible to distinguish, in TS-1, between signals coming from different titanium species. Finally, it has been proven that the use of acid solutions allows us to discriminate between Ti4+ ions in TS-I and in ETS-10 since only the former is able to coordinate water molecules, the reduction of which can be monitored by the presence of a peak at - 600 mV/SSE. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：349 / 352

页数：4

共 25 条

[1]

STRUCTURE OF THE MICROPOROUS TITANOSILICATE ETS-10 [J].