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Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts

Four VPO catalysts were synthesized through intercalation and exfoliation in various alcohols and subsequent reduction of the exfoliated VOPO4 sheets with various alcohols to produce VOHPO40.5H2O. The resulting VOHPO40.5H2O that undergoes the intercalation-exfoliation-reduction (IER) process will be...

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Main Authors: Wong, Yee Ching, Yap, Taufiq Yun Hin
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2013
Online Access:http://psasir.upm.edu.my/id/eprint/30092/1/Influence%20of%20intercalation%20exfoliation%20reduction%20technique%20towards%20the%20physico%20chemical%20of%20VPO%20catalysts.pdf
http://psasir.upm.edu.my/id/eprint/30092/
https://www.hindawi.com/journals/jchem/2013/727539/abs/
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spelling my.upm.eprints.300922016-11-24T08:16:04Z http://psasir.upm.edu.my/id/eprint/30092/ Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts Wong, Yee Ching Yap, Taufiq Yun Hin Four VPO catalysts were synthesized through intercalation and exfoliation in various alcohols and subsequent reduction of the exfoliated VOPO4 sheets with various alcohols to produce VOHPO40.5H2O. The resulting VOHPO40.5H2O that undergoes the intercalation-exfoliation-reduction (IER) process will be further activated into VPO catalysts, and addition of 1 mole Bi(NO3)35H2O in the first stage of this experiment has also being investigated. The synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and temperature-programmed reduction (TPR) in H2. Catalytic evaluation of the IER-treated and Bi-doped VPO catalysts was also studied on microreactor. The VPO catalyst produced through IER using 2-butanol and ethanol with addition of Bi, IERC(2Bu-Et)RBi1, gave the highest MA selectivity due to reactive O 2- species released from the additional crystalline V 5+ phase formed by doping 1 bismuth as promoter (O 2-V 5+ pair) at relative lower temperature. Nevertheless, the VPO catalyst produced through IER using isobutanol, IERC(isoBu), gave the highest activity due to high amount of reactive O - species released from V 4+ phase (O - V 4+ pair) whereby the IERC(isoBu) catalyst synthesized consists of high percentage of V 4+ (93). Hindawi Publishing Corporation 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30092/1/Influence%20of%20intercalation%20exfoliation%20reduction%20technique%20towards%20the%20physico%20chemical%20of%20VPO%20catalysts.pdf Wong, Yee Ching and Yap, Taufiq Yun Hin (2013) Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts. Journal of Chemistry, 2013. art. no. 727539. pp. 1-8. ISSN 2090-9063; ESSN: 2090-9071 https://www.hindawi.com/journals/jchem/2013/727539/abs/ 10.1155/2013/727539
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 Four VPO catalysts were synthesized through intercalation and exfoliation in various alcohols and subsequent reduction of the exfoliated VOPO4 sheets with various alcohols to produce VOHPO40.5H2O. The resulting VOHPO40.5H2O that undergoes the intercalation-exfoliation-reduction (IER) process will be further activated into VPO catalysts, and addition of 1 mole Bi(NO3)35H2O in the first stage of this experiment has also being investigated. The synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and temperature-programmed reduction (TPR) in H2. Catalytic evaluation of the IER-treated and Bi-doped VPO catalysts was also studied on microreactor. The VPO catalyst produced through IER using 2-butanol and ethanol with addition of Bi, IERC(2Bu-Et)RBi1, gave the highest MA selectivity due to reactive O 2- species released from the additional crystalline V 5+ phase formed by doping 1 bismuth as promoter (O 2-V 5+ pair) at relative lower temperature. Nevertheless, the VPO catalyst produced through IER using isobutanol, IERC(isoBu), gave the highest activity due to high amount of reactive O - species released from V 4+ phase (O - V 4+ pair) whereby the IERC(isoBu) catalyst synthesized consists of high percentage of V 4+ (93).
format Article
author Wong, Yee Ching
Yap, Taufiq Yun Hin
spellingShingle Wong, Yee Ching
Yap, Taufiq Yun Hin
Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts
author_facet Wong, Yee Ching
Yap, Taufiq Yun Hin
author_sort Wong, Yee Ching
title Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts
title_short Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts
title_full Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts
title_fullStr Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts
title_full_unstemmed Influence of intercalation-exfoliation-reduction technique towards the physico-chemical of VPO catalysts
title_sort influence of intercalation-exfoliation-reduction technique towards the physico-chemical of vpo catalysts
publisher Hindawi Publishing Corporation
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/30092/1/Influence%20of%20intercalation%20exfoliation%20reduction%20technique%20towards%20the%20physico%20chemical%20of%20VPO%20catalysts.pdf
http://psasir.upm.edu.my/id/eprint/30092/
https://www.hindawi.com/journals/jchem/2013/727539/abs/
_version_ 1643829955268706304
score 13.211869

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