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.

VOLTAMMETRIC CHARACTERIZATION OF STRUCTURAL TITANIUM SPECIES IN ZEOTYPES

LAMBERTI, Carlo;ZECCHINA, Adriano
2000-01-01

Abstract

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.
2000
2
349
352
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VP5-405SXPF-G&_user=525216&_coverDate=05%2F01%2F2000&_rdoc=14&_fmt=high&_orig=browse&_srch=doc-info(%23toc%236197%232000%23999979994%23192063%23FLA%23display%23Volume)&_cdi=6197&_sort=d&_docanchor=&_ct=19&_acct=C000026382&_version=1&_urlVersion=0&_userid=525216&md5=00f133be9dd58782e47fec4d144608e6
Cyclic voltamety; TS-1 catalyst; ETS-10
S. BODOARDO; F. GEOBALDO; N. PENAZZI; M. ARRABITO; F. RIVETTI; G. SPANÒ; C. LAMBERTI; A. ZECCHINA
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/6889
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