Characterization of bismuth oxide catalysts prepared from bismuth trinitrate pentahydrate: influence of bismuth concentration

Ramli, Irmawati and Mhamat Nasudin, Noorfarizan Nasriah and Yap, Taufiq Yun Hin and Abdul Hamid, Sharifah Bee (2004) Characterization of bismuth oxide catalysts prepared from bismuth trinitrate pentahydrate: influence of bismuth concentration. Catalysis Today, 93-95 (1). pp. 701-709. ISSN 0920-5861

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Official URL: http://dx.doi.org/10.1016/j.cattod.2004.06.065

Abstract

Bi2O3 catalysts have been prepared via precipitation method by using Bi(NO3)3·5H2O as a starting material and NaOH as the precipitating agent. The influence of bismuth concentration on the formation of Bi2O3 nanocrystals was investigated by using XRD, BET, FTIR, SEM and H2-TPR. Low bismuth concentration, resulted in high surface area material with small size crystallite (not, vert, similar36 nm). It also enhanced the oxide reducibility with high reduction activity. XRD patterns of all the samples display pure α-Bi2O3 phase. The SEM images showed the nanostructure of Bi2O3 were non-agglomerated needles.

Item Type:Article
Keyword:Bi2O3 catalyst, Precipitation, Bismuth concentration, Nanocrystals
Faculty or Institute:Faculty of Science
Publisher:Elsevier
DOI Number:10.1016/j.cattod.2004.06.065
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.cattod.2004.06.065
ID Code:7902
Deposited By: Erni Suraya Abdul Aziz
Deposited On:30 Sep 2010 07:04
Last Modified:30 Sep 2010 07:09

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