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Niobic acid dispersed on the surface of TS-1 : acidity study

Prasetyoko, Didik and Ramli, Zainab and Hadi Nur, Hadi Nur and Endud, Salasiah (2005) Niobic acid dispersed on the surface of TS-1 : acidity study. Jurnal Akta Kimia Indonesia, 1 (1). pp. 11-16. ISSN 2085-014X

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Official URL: http://www.hadinur.com/paper/hadi_aktakimindo2005....

Abstract

ABSTRACT : Bifunctional oxidative and acidic catalyst was prepared by incorporation of titanium ion (Ti4+) and niobic acid in zeolite molecular-sieve. Nb/TS-1 was prepared by hydrothermal synthesis of Titanium silicalite, TS-1, calcination in air and subsequent impregnation of niobium (3-20 wt% Nb2O5) into TS-1. Acidity of the sample was characterized by pyridine adsorption technique. Pyridine adsorption study shows both Brønsted and Lewis acid sites are present in all Nb/TS-1 samples. ABSTRAK : Katalis oksidatif bifungsional dan asam telah dipersiapkan melalui penggabungan ion titanium (Ti4+) dan asam niobat di dalam penyaring-molekuler zeolit. Nb/TS-1 dipersiapkan secara sintesis hidrotermal titanium silikat, TS-1, kalsinasi di udara dan penjenuhan niobium (3-20 % berat Nb2O5) ke dalam TS-1. Keasaman contoh dikarakterisasi dengan teknik adsorpsi piridin. Pengkajian adsorpsi piridin memperlihatkan bahwa kedua asam Brønsted dan asam Lewis terdapat di seluruh contoh Nb/TS-1.

Item Type:Article
Uncontrolled Keywords:bifunctional oxidative, acid catalysts, acidity
Subjects:Q Science > QD Chemistry
Divisions:Science
ID Code:19999
Deposited By: Kamariah Mohamed Jong
Deposited On:20 Dec 2011 08:57
Last Modified:28 Nov 2012 07:17

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