Cover Image

The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis

Hematite and cupric oxide nanowires have been synthesized using the oxidation method for green urea production. Hematite nanowires were obtained by the oxidation of an iron wire at a temperature of 650 °C and ambient pressure in the presence of N2 and O2 gases. Cupric oxide nanowires were obtained b...

Full description

Saved in:
Bibliographic Details
Main Authors: Yahya, N., Alqasem, B., Irfan, M., Qureshi, S., Rehman, Z.U., Shafie, A., Soleimani, H.
Format: Article
Published: Elsevier B.V. 2017
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85002202502&doi=10.1016%2fj.physb.2016.11.024&partnerID=40&md5=84c8dece2fc3fc7e748d630511120a11
http://eprints.utp.edu.my/19613/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utp.eprints.19613
record_format eprints
spelling my.utp.eprints.196132018-04-20T07:16:01Z The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis Yahya, N. Alqasem, B. Irfan, M. Qureshi, S. Rehman, Z.U. Shafie, A. Soleimani, H. Hematite and cupric oxide nanowires have been synthesized using the oxidation method for green urea production. Hematite nanowires were obtained by the oxidation of an iron wire at a temperature of 650 °C and ambient pressure in the presence of N2 and O2 gases. Cupric oxide nanowires were obtained by the same method at 700 °C, using a copper wire. The X-ray diffraction results show the formation of rhombohedral structure of α-Fe2O3 and monoclinic phase of CuO. FE-SEM results reveal the formation of nanowires with dimensions ranging between 5–15 µm and 4–12 µm in length and a diametere ranging between 50–150 nm and 50–250 nm for α-Fe2O3 and CuO respectively. The VSM results show that the saturation magnetization values for hematite and cupric oxide were 132.8700 and 0.0124 emu/g, respectively. The nanowires were used as catalyst for green urea synthesis in the presence of an oscillating and a static magnetic fields. The use of nanocatalyst with high saturation magnetization gives a higher yield of urea due to the increase in the singlet to triplet conversion. The highest yield of urea 11243 ppm was achieved by applying an oscillating magnetic field of frequency 0.5 MHz and using α-Fe2O3 nanowires as nanocatalyst. © 2016 Elsevier B.V. Elsevier B.V. 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85002202502&doi=10.1016%2fj.physb.2016.11.024&partnerID=40&md5=84c8dece2fc3fc7e748d630511120a11 Yahya, N. and Alqasem, B. and Irfan, M. and Qureshi, S. and Rehman, Z.U. and Shafie, A. and Soleimani, H. (2017) The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis. Physica B: Condensed Matter, 507 . p. 1. http://eprints.utp.edu.my/19613/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Hematite and cupric oxide nanowires have been synthesized using the oxidation method for green urea production. Hematite nanowires were obtained by the oxidation of an iron wire at a temperature of 650 °C and ambient pressure in the presence of N2 and O2 gases. Cupric oxide nanowires were obtained by the same method at 700 °C, using a copper wire. The X-ray diffraction results show the formation of rhombohedral structure of α-Fe2O3 and monoclinic phase of CuO. FE-SEM results reveal the formation of nanowires with dimensions ranging between 5–15 µm and 4–12 µm in length and a diametere ranging between 50–150 nm and 50–250 nm for α-Fe2O3 and CuO respectively. The VSM results show that the saturation magnetization values for hematite and cupric oxide were 132.8700 and 0.0124 emu/g, respectively. The nanowires were used as catalyst for green urea synthesis in the presence of an oscillating and a static magnetic fields. The use of nanocatalyst with high saturation magnetization gives a higher yield of urea due to the increase in the singlet to triplet conversion. The highest yield of urea 11243 ppm was achieved by applying an oscillating magnetic field of frequency 0.5 MHz and using α-Fe2O3 nanowires as nanocatalyst. © 2016 Elsevier B.V.
format Article
author Yahya, N.
Alqasem, B.
Irfan, M.
Qureshi, S.
Rehman, Z.U.
Shafie, A.
Soleimani, H.
spellingShingle Yahya, N.
Alqasem, B.
Irfan, M.
Qureshi, S.
Rehman, Z.U.
Shafie, A.
Soleimani, H.
The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
author_facet Yahya, N.
Alqasem, B.
Irfan, M.
Qureshi, S.
Rehman, Z.U.
Shafie, A.
Soleimani, H.
author_sort Yahya, N.
title The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
title_short The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
title_full The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
title_fullStr The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
title_full_unstemmed The effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
title_sort effect of saturation magnetization of nanocatalyst and oscillating magnetic field for green urea synthesis
publisher Elsevier B.V.
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85002202502&doi=10.1016%2fj.physb.2016.11.024&partnerID=40&md5=84c8dece2fc3fc7e748d630511120a11
http://eprints.utp.edu.my/19613/
_version_ 1738656094937415680
score 13.211869

Similar Items