PREPARATION of Gd2O3 NANOMATERIALS via SOLUTION COMBUSTION SYNTHESIS FOR OXIDATIVE COUPLING OF METHANE

Hasan ÖZDEMİR

doi:https://doi.org/10.18038/estubtda.583297

Makale detayları

PREPARATION of Gd2O3 NANOMATERIALS via SOLUTION COMBUSTION SYNTHESIS FOR OXIDATIVE COUPLING OF METHANE

Yazarlar:

Hasan ÖZDEMİR

Yayıncı:

Eskisehir Technical University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 2020 Vol.21 Issue 1, pp.165-172

Belge Tipi:

Makale

Yayın Tarihi:

3/2020

Belge Dili:

İngilizce

Document ID (Org No.):

2000416933

pISSN:

2667-4211

DOI:

https://doi.org/10.18038/estubtda.583297

Özet:

 


In this study, in the
production of Gd2O3 material which has many usage areas,
solution combustion synthesis was used and the changes in the physical and
structural properties of the material were investigated by changing the
oxidant/fuel ratio. The resulting metal oxide powders were characterized by
X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area,
Thermogravimetric-Differential thermal analysis (TG-DTA) and scanning electron
microscopy (SEM) analysis and tested in oxidative coupling of methane. Cubic
and monoclinic phases were observed in Gd2O3 crystal
structure at fuel-rich and stoichiometric conditions, and only cubic phase was
determined at fuel-lean conditions. It was determined that the obtained powders
were mesoporous and the highest BET surface area was obtained at stoichiometric
oxidant/fuel ratio (18.6 m2/g). It was determined that the powders
were formed from rather small particles (<30 nm) and with layered or stacked
structure. The catalytic performance of Gd2O3 nanoparticles was
found to be dependent on the BET surface area and crystal structure. The
highest C2 yield was obtained at 720°C with Gd2O3-0.5
(8.5%).


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Makale detayları

PREPARATION of Gd2O3 NANOMATERIALS via SOLUTION COMBUSTION SYNTHESIS FOR OXIDATIVE COUPLING OF METHANE

Yazarlar: Hasan ÖZDEMİR

Yayıncı: Eskisehir Technical University

Ana Başlıklar: Uygulamalı fizik

Dergi: Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 2020 Vol.21 Issue 1, pp.165-172

Belge Tipi: Makale

Yayın Tarihi: 3/2020

Belge Dili: İngilizce

Document ID (Org No.): 2000416933

pISSN: 2667-4211

DOI: https://doi.org/10.18038/estubtda.583297

Sayı

Yazarlar:

Hasan ÖZDEMİR

Yayıncı:

Eskisehir Technical University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 2020 Vol.21 Issue 1, pp.165-172

Belge Tipi:

Makale

Yayın Tarihi:

3/2020

Belge Dili:

İngilizce

Document ID (Org No.):

2000416933

pISSN:

2667-4211

DOI:

https://doi.org/10.18038/estubtda.583297