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Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst

The thermal stability of the as-synthesized Nitrogen-doped reduced graphite oxide supported copper catalyst was investigated by a thermogravimetric analyzer (TGA) at a temperature range 273–1173 K under purified N2 atmosphere using three different heating rates (15, 20 and 25 K min−1). Firstly, to o...

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Main Authors: Mageed, Alyaa Khadhier, Awang Biak, Dayang Radiah, Ali, Salmiaton, Siajam, Shamsul Izhar, Abdul Razak, Mus'ab
Format: Article
Language:English
Published: Springer Verlag 2018
Online Access:http://psasir.upm.edu.my/id/eprint/74001/1/Study%20the%20thermal%20stability%20of%20nitrogen%20doped%20reduced%20graphite%20oxide%20supported%20copper%20catalyst.pdf
http://psasir.upm.edu.my/id/eprint/74001/
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spelling my.upm.eprints.740012020-04-29T04:42:42Z http://psasir.upm.edu.my/id/eprint/74001/ Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst Mageed, Alyaa Khadhier Awang Biak, Dayang Radiah Ali, Salmiaton Siajam, Shamsul Izhar Abdul Razak, Mus'ab The thermal stability of the as-synthesized Nitrogen-doped reduced graphite oxide supported copper catalyst was investigated by a thermogravimetric analyzer (TGA) at a temperature range 273–1173 K under purified N2 atmosphere using three different heating rates (15, 20 and 25 K min−1). Firstly, to obtained nitrogen-doped reduced graphite oxide (N-rGO), the functionalized graphite oxide was synthesized using Staudenmaier’s method reduced by continuously stirring in an ammonia solution subsequently. The rGO was doped with nitrogen and impregnated with Cu-precursor to obtain Cu/N-rGO. The as-synthesized GO; N-rGO and Cu/N-rGO were characterized by FESEM, EDX, TEM, XRD and XPS. All these analyses were resulted in successfully samples synthesized. The TGA kinetic data were fitted into Kissinger and Flynn–Wall–Ozawa model free expressions to obtain apparent activation energies of 83.34 and 102.59 J mol−1 and pre-exponential factors of 2.40 × 107 and 5.01 × 1011 s−1. The high R2 values of 0.9999 and 0.9666 obtained from fitting TGA kinetic data using the Kissinger and Flynn–Wall–Ozawa model free expressions show that the data were well fitted to the expressions. This implies that the thermal behavior of nitrogen doped reduced graphite oxide supported Cu catalyst can be investigated using Kissinger and Flynn–Wall–Ozawa model free expressions. Springer Verlag 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/74001/1/Study%20the%20thermal%20stability%20of%20nitrogen%20doped%20reduced%20graphite%20oxide%20supported%20copper%20catalyst.pdf Mageed, Alyaa Khadhier and Awang Biak, Dayang Radiah and Ali, Salmiaton and Siajam, Shamsul Izhar and Abdul Razak, Mus'ab (2018) Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst. Journal of Cluster Science, 29. 709 - 718. ISSN 1040-7278; ESSN: 1572-8862 10.1007/s10876-018-1382-6
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 thermal stability of the as-synthesized Nitrogen-doped reduced graphite oxide supported copper catalyst was investigated by a thermogravimetric analyzer (TGA) at a temperature range 273–1173 K under purified N2 atmosphere using three different heating rates (15, 20 and 25 K min−1). Firstly, to obtained nitrogen-doped reduced graphite oxide (N-rGO), the functionalized graphite oxide was synthesized using Staudenmaier’s method reduced by continuously stirring in an ammonia solution subsequently. The rGO was doped with nitrogen and impregnated with Cu-precursor to obtain Cu/N-rGO. The as-synthesized GO; N-rGO and Cu/N-rGO were characterized by FESEM, EDX, TEM, XRD and XPS. All these analyses were resulted in successfully samples synthesized. The TGA kinetic data were fitted into Kissinger and Flynn–Wall–Ozawa model free expressions to obtain apparent activation energies of 83.34 and 102.59 J mol−1 and pre-exponential factors of 2.40 × 107 and 5.01 × 1011 s−1. The high R2 values of 0.9999 and 0.9666 obtained from fitting TGA kinetic data using the Kissinger and Flynn–Wall–Ozawa model free expressions show that the data were well fitted to the expressions. This implies that the thermal behavior of nitrogen doped reduced graphite oxide supported Cu catalyst can be investigated using Kissinger and Flynn–Wall–Ozawa model free expressions.
format Article
author Mageed, Alyaa Khadhier
Awang Biak, Dayang Radiah
Ali, Salmiaton
Siajam, Shamsul Izhar
Abdul Razak, Mus'ab
spellingShingle Mageed, Alyaa Khadhier
Awang Biak, Dayang Radiah
Ali, Salmiaton
Siajam, Shamsul Izhar
Abdul Razak, Mus'ab
Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
author_facet Mageed, Alyaa Khadhier
Awang Biak, Dayang Radiah
Ali, Salmiaton
Siajam, Shamsul Izhar
Abdul Razak, Mus'ab
author_sort Mageed, Alyaa Khadhier
title Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
title_short Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
title_full Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
title_fullStr Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
title_full_unstemmed Study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
title_sort study the thermal stability of nitrogen doped reduced graphite oxide supported copper catalyst
publisher Springer Verlag
publishDate 2018
url http://psasir.upm.edu.my/id/eprint/74001/1/Study%20the%20thermal%20stability%20of%20nitrogen%20doped%20reduced%20graphite%20oxide%20supported%20copper%20catalyst.pdf
http://psasir.upm.edu.my/id/eprint/74001/
_version_ 1665896002736881664
score 13.211869

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