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Effect of number of washing on the characteristics of copper oxide nanopowders

The effect of washing on physico-chemical properties of copper oxide prepared via precipitation method was investigated by means of X-ray diffraction (XRD ), Fourier Transform Infrared (FTIR), BET surface area measurement and scanning electron microscopy (SEM ). Increasing the number of washing...

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Main Authors: Muhamad, Ernee Noryana, Ramli, Irmawati, Abdullah, Abdul Halim, Yap, Taufiq Yun Hin, Abdul Hamid, Sharifah Bee
Format: Article
Language:English
Published: Malaysian Analytical Sciences Society 2007
Online Access:http://psasir.upm.edu.my/id/eprint/11559/1/Effect%20of%20Number%20of%20Washing%20on%20the%20Characteristics%20of%20Copper%20Oxide%20Nanopowders.pdf
http://psasir.upm.edu.my/id/eprint/11559/
http://www.ukm.my/mjas/new_mjas/
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spelling my.upm.eprints.115592016-11-29T02:08:35Z http://psasir.upm.edu.my/id/eprint/11559/ Effect of number of washing on the characteristics of copper oxide nanopowders Muhamad, Ernee Noryana Ramli, Irmawati Abdullah, Abdul Halim Yap, Taufiq Yun Hin Abdul Hamid, Sharifah Bee The effect of washing on physico-chemical properties of copper oxide prepared via precipitation method was investigated by means of X-ray diffraction (XRD ), Fourier Transform Infrared (FTIR), BET surface area measurement and scanning electron microscopy (SEM ). Increasing the number of washing has successfully removed undesired nitrate resulting in high surface area CuO catalysts from 8.5 to 15.9 m2 g-1. XRD pattern of thes e oxides gave well crystalline of CuO with main peak appeared at 2 = 35.5°, 38.7° and 48.7°. The powders obtained are of uniform size distribution, finely grained with an average size of 20 nm. In addition, an investigation on the mobility of oxygen species carried out using transient technique i.e. temperature programmed reduction (TPR) shows that reduction peak maximum moved towards lower reduction temperature with the increasing number of washing. This indicates the ease of reducibility of the oxide when the precursor is washed several times. It is clearly found that particle size was profound effect on the catalytic activity of CuO. Malaysian Analytical Sciences Society 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/11559/1/Effect%20of%20Number%20of%20Washing%20on%20the%20Characteristics%20of%20Copper%20Oxide%20Nanopowders.pdf Muhamad, Ernee Noryana and Ramli, Irmawati and Abdullah, Abdul Halim and Yap, Taufiq Yun Hin and Abdul Hamid, Sharifah Bee (2007) Effect of number of washing on the characteristics of copper oxide nanopowders. The Malaysian Journal of Analytical Sciences, 11 (1). pp. 294-301. ISSN 1394-2506 http://www.ukm.my/mjas/new_mjas/
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The effect of washing on physico-chemical properties of copper oxide prepared via precipitation method was investigated by means of X-ray diffraction (XRD ), Fourier Transform Infrared (FTIR), BET surface area measurement and scanning electron microscopy (SEM ). Increasing the number of washing has successfully removed undesired nitrate resulting in high surface area CuO catalysts from 8.5 to 15.9 m2 g-1. XRD pattern of thes e oxides gave well crystalline of CuO with main peak appeared at 2 = 35.5°, 38.7° and 48.7°. The powders obtained are of uniform size distribution, finely grained with an average size of 20 nm. In addition, an investigation on the mobility of oxygen species carried out using transient technique i.e. temperature programmed reduction (TPR) shows that reduction peak maximum moved towards lower reduction temperature with the increasing number of washing. This indicates the ease of reducibility of the oxide when the precursor is washed several times. It is clearly found that particle size was profound effect on the catalytic activity of CuO.
format Article
author Muhamad, Ernee Noryana
Ramli, Irmawati
Abdullah, Abdul Halim
Yap, Taufiq Yun Hin
Abdul Hamid, Sharifah Bee
spellingShingle Muhamad, Ernee Noryana
Ramli, Irmawati
Abdullah, Abdul Halim
Yap, Taufiq Yun Hin
Abdul Hamid, Sharifah Bee
Effect of number of washing on the characteristics of copper oxide nanopowders
author_facet Muhamad, Ernee Noryana
Ramli, Irmawati
Abdullah, Abdul Halim
Yap, Taufiq Yun Hin
Abdul Hamid, Sharifah Bee
author_sort Muhamad, Ernee Noryana
title Effect of number of washing on the characteristics of copper oxide nanopowders
title_short Effect of number of washing on the characteristics of copper oxide nanopowders
title_full Effect of number of washing on the characteristics of copper oxide nanopowders
title_fullStr Effect of number of washing on the characteristics of copper oxide nanopowders
title_full_unstemmed Effect of number of washing on the characteristics of copper oxide nanopowders
title_sort effect of number of washing on the characteristics of copper oxide nanopowders
publisher Malaysian Analytical Sciences Society
publishDate 2007
url http://psasir.upm.edu.my/id/eprint/11559/1/Effect%20of%20Number%20of%20Washing%20on%20the%20Characteristics%20of%20Copper%20Oxide%20Nanopowders.pdf
http://psasir.upm.edu.my/id/eprint/11559/
http://www.ukm.my/mjas/new_mjas/
_version_ 1643824824896716800
score 13.211869

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