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Determination of Lewis and Brönsted acid sites by gas flow-injection technique

Gas flow-injection technique pyridine-FTIR was studied for determination of Lewis and Brönsted acid sites on the solid super acid catalysts. The system consists of stainless steel gas cell which can be heated up to 623 K, CaF2 windows, pyridine injection port and double liquid nitrogen trap for remo...

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Main Authors: Musthofa, Malik, Karim, Ainul Hakimah, Ahmad Fadzlillaah, Nurrulhidayah, Annuar, Nur Hazirah Rozali, Jalil, Aishah Abdul, Triwahyono, Sugeng
Format: Article
Language:English
Published: UTM Press 2010
Subjects:
QD Chemistry
Online Access:http://irep.iium.edu.my/71289/7/71289.pdf
http://irep.iium.edu.my/71289/
https://mjfas.utm.my/index.php/mjfas/article/view/195/538
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spelling my.iium.irep.712892020-02-21T01:14:25Z http://irep.iium.edu.my/71289/ Determination of Lewis and Brönsted acid sites by gas flow-injection technique Musthofa, Malik Karim, Ainul Hakimah Ahmad Fadzlillaah, Nurrulhidayah Annuar, Nur Hazirah Rozali Jalil, Aishah Abdul Triwahyono, Sugeng QD Chemistry Gas flow-injection technique pyridine-FTIR was studied for determination of Lewis and Brönsted acid sites on the solid super acid catalysts. The system consists of stainless steel gas cell which can be heated up to 623 K, CaF2 windows, pyridine injection port and double liquid nitrogen trap for removal of moisture. Pure nitrogen gas and pyridine were used as a carrier and probe molecule. Pyridine was injected to the sysem at 423 K followed by flushing of N2 gas through double liquid nitrogen trap at 423 for 1 h and at 573 K for 30 min. All spectra were recorded at room temperature. This technique gave similar results to those of taken by vacuum system for HZSM-5, Pt/SO4 2--ZrO2, Al2O3 catalysts. UTM Press 2010 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71289/7/71289.pdf Musthofa, Malik and Karim, Ainul Hakimah and Ahmad Fadzlillaah, Nurrulhidayah and Annuar, Nur Hazirah Rozali and Jalil, Aishah Abdul and Triwahyono, Sugeng (2010) Determination of Lewis and Brönsted acid sites by gas flow-injection technique. Malaysian Journal of Fundamental and Applied Sciences, 6 (2). pp. 127-131. ISSN 2289-5981 E-ISSN 2289-599X https://mjfas.utm.my/index.php/mjfas/article/view/195/538
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Musthofa, Malik
Karim, Ainul Hakimah
Ahmad Fadzlillaah, Nurrulhidayah
Annuar, Nur Hazirah Rozali
Jalil, Aishah Abdul
Triwahyono, Sugeng
Determination of Lewis and Brönsted acid sites by gas flow-injection technique
description Gas flow-injection technique pyridine-FTIR was studied for determination of Lewis and Brönsted acid sites on the solid super acid catalysts. The system consists of stainless steel gas cell which can be heated up to 623 K, CaF2 windows, pyridine injection port and double liquid nitrogen trap for removal of moisture. Pure nitrogen gas and pyridine were used as a carrier and probe molecule. Pyridine was injected to the sysem at 423 K followed by flushing of N2 gas through double liquid nitrogen trap at 423 for 1 h and at 573 K for 30 min. All spectra were recorded at room temperature. This technique gave similar results to those of taken by vacuum system for HZSM-5, Pt/SO4 2--ZrO2, Al2O3 catalysts.
format Article
author Musthofa, Malik
Karim, Ainul Hakimah
Ahmad Fadzlillaah, Nurrulhidayah
Annuar, Nur Hazirah Rozali
Jalil, Aishah Abdul
Triwahyono, Sugeng
author_facet Musthofa, Malik
Karim, Ainul Hakimah
Ahmad Fadzlillaah, Nurrulhidayah
Annuar, Nur Hazirah Rozali
Jalil, Aishah Abdul
Triwahyono, Sugeng
author_sort Musthofa, Malik
title Determination of Lewis and Brönsted acid sites by gas flow-injection technique
title_short Determination of Lewis and Brönsted acid sites by gas flow-injection technique
title_full Determination of Lewis and Brönsted acid sites by gas flow-injection technique
title_fullStr Determination of Lewis and Brönsted acid sites by gas flow-injection technique
title_full_unstemmed Determination of Lewis and Brönsted acid sites by gas flow-injection technique
title_sort determination of lewis and brönsted acid sites by gas flow-injection technique
publisher UTM Press
publishDate 2010
url http://irep.iium.edu.my/71289/7/71289.pdf
http://irep.iium.edu.my/71289/
https://mjfas.utm.my/index.php/mjfas/article/view/195/538
_version_ 1662753717957427200
score 13.211869

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