Effect of Different Anions Upon the WO₃ Morphology and Structure

Teodóra Nagyné-Kovács, Adrienn Malik, Arshak Szenkovits, István Endre Lukács, Imre M. Szilágyi, G. Pokol

Research output: Contribution to journalArticle

Abstract

In this study the effects of various anions (SO2-₄, ClO-₄ and PO3-₄) were investigated on the hydrothermal treatment of WO₃ from Na₂WO₄ and HCl at 180 and 200 °C. The products were analyzed by XRD and SEM. With the usage of SO2-₄ the obtained product was hexagonal (h-) WO₃ in the form of nanorods at both temperatures. Applying ClO-₄ resulted in a mixture of WO₃·0.33H₂O and small amount of m-WO₃ at 180 °C and pure WO₃·0.33H₂O at 200 °C. The morphology was consisted of cuboid shapes arranged into spherical structures at 180 °C and longitudinal ones at 200 °C. By the application of PO3-₄ no product formed at either temperature. Using the combination of SO2-₄, and ClO-₄ the product was h-WO₃ at both 180 and 200 °C with rod-like crystals; thus, the effect of ClO-₄ was overdominated by the SO2-₄ions. Utilization of PO3-₄ together with SO2-₄, and/or ClO-₄ resulted again in no product, meaning that adding PO3-₄ to the reaction mixture completely blocks the hydrothermal formation of solid products by forming water soluble phosphotungstic acids.

LanguageEnglish
Pages498-501
Number of pages4
JournalJournal of nanoscience and nanotechnology
Volume19
Issue number1
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Anions
Phosphotungstic Acid
Nanotubes
Temperature
Water

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Nagyné-Kovács, T., Malik, A., Szenkovits, A., Lukács, I. E., Szilágyi, I. M., & Pokol, G. (2019). Effect of Different Anions Upon the WO₃ Morphology and Structure. Journal of nanoscience and nanotechnology, 19(1), 498-501. https://doi.org/10.1166/jnn.2019.15790

Effect of Different Anions Upon the WO₃ Morphology and Structure. / Nagyné-Kovács, Teodóra; Malik, Adrienn; Szenkovits, Arshak; Lukács, István Endre; Szilágyi, Imre M.; Pokol, G.

In: Journal of nanoscience and nanotechnology, Vol. 19, No. 1, 01.01.2019, p. 498-501.

Research output: Contribution to journalArticle

Nagyné-Kovács, T, Malik, A, Szenkovits, A, Lukács, IE, Szilágyi, IM & Pokol, G 2019, 'Effect of Different Anions Upon the WO₃ Morphology and Structure' Journal of nanoscience and nanotechnology, vol. 19, no. 1, pp. 498-501. https://doi.org/10.1166/jnn.2019.15790
Nagyné-Kovács, Teodóra ; Malik, Adrienn ; Szenkovits, Arshak ; Lukács, István Endre ; Szilágyi, Imre M. ; Pokol, G. / Effect of Different Anions Upon the WO₃ Morphology and Structure. In: Journal of nanoscience and nanotechnology. 2019 ; Vol. 19, No. 1. pp. 498-501.
@article{d0fce0d9cbeb4167bf3bb1e17bc91406,
title = "Effect of Different Anions Upon the WO₃ Morphology and Structure",
abstract = "In this study the effects of various anions (SO2-₄, ClO-₄ and PO3-₄) were investigated on the hydrothermal treatment of WO₃ from Na₂WO₄ and HCl at 180 and 200 °C. The products were analyzed by XRD and SEM. With the usage of SO2-₄ the obtained product was hexagonal (h-) WO₃ in the form of nanorods at both temperatures. Applying ClO-₄ resulted in a mixture of WO₃·0.33H₂O and small amount of m-WO₃ at 180 °C and pure WO₃·0.33H₂O at 200 °C. The morphology was consisted of cuboid shapes arranged into spherical structures at 180 °C and longitudinal ones at 200 °C. By the application of PO3-₄ no product formed at either temperature. Using the combination of SO2-₄, and ClO-₄ the product was h-WO₃ at both 180 and 200 °C with rod-like crystals; thus, the effect of ClO-₄ was overdominated by the SO2-₄ions. Utilization of PO3-₄ together with SO2-₄, and/or ClO-₄ resulted again in no product, meaning that adding PO3-₄ to the reaction mixture completely blocks the hydrothermal formation of solid products by forming water soluble phosphotungstic acids.",
author = "Teod{\'o}ra Nagyn{\'e}-Kov{\'a}cs and Adrienn Malik and Arshak Szenkovits and Luk{\'a}cs, {Istv{\'a}n Endre} and Szil{\'a}gyi, {Imre M.} and G. Pokol",
year = "2019",
month = "1",
day = "1",
doi = "10.1166/jnn.2019.15790",
language = "English",
volume = "19",
pages = "498--501",
journal = "Journal of Nanoscience and Nanotechnology",
issn = "1533-4880",
publisher = "American Scientific Publishers",
number = "1",

}

TY - JOUR

T1 - Effect of Different Anions Upon the WO₃ Morphology and Structure

AU - Nagyné-Kovács, Teodóra

AU - Malik, Adrienn

AU - Szenkovits, Arshak

AU - Lukács, István Endre

AU - Szilágyi, Imre M.

AU - Pokol, G.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In this study the effects of various anions (SO2-₄, ClO-₄ and PO3-₄) were investigated on the hydrothermal treatment of WO₃ from Na₂WO₄ and HCl at 180 and 200 °C. The products were analyzed by XRD and SEM. With the usage of SO2-₄ the obtained product was hexagonal (h-) WO₃ in the form of nanorods at both temperatures. Applying ClO-₄ resulted in a mixture of WO₃·0.33H₂O and small amount of m-WO₃ at 180 °C and pure WO₃·0.33H₂O at 200 °C. The morphology was consisted of cuboid shapes arranged into spherical structures at 180 °C and longitudinal ones at 200 °C. By the application of PO3-₄ no product formed at either temperature. Using the combination of SO2-₄, and ClO-₄ the product was h-WO₃ at both 180 and 200 °C with rod-like crystals; thus, the effect of ClO-₄ was overdominated by the SO2-₄ions. Utilization of PO3-₄ together with SO2-₄, and/or ClO-₄ resulted again in no product, meaning that adding PO3-₄ to the reaction mixture completely blocks the hydrothermal formation of solid products by forming water soluble phosphotungstic acids.

AB - In this study the effects of various anions (SO2-₄, ClO-₄ and PO3-₄) were investigated on the hydrothermal treatment of WO₃ from Na₂WO₄ and HCl at 180 and 200 °C. The products were analyzed by XRD and SEM. With the usage of SO2-₄ the obtained product was hexagonal (h-) WO₃ in the form of nanorods at both temperatures. Applying ClO-₄ resulted in a mixture of WO₃·0.33H₂O and small amount of m-WO₃ at 180 °C and pure WO₃·0.33H₂O at 200 °C. The morphology was consisted of cuboid shapes arranged into spherical structures at 180 °C and longitudinal ones at 200 °C. By the application of PO3-₄ no product formed at either temperature. Using the combination of SO2-₄, and ClO-₄ the product was h-WO₃ at both 180 and 200 °C with rod-like crystals; thus, the effect of ClO-₄ was overdominated by the SO2-₄ions. Utilization of PO3-₄ together with SO2-₄, and/or ClO-₄ resulted again in no product, meaning that adding PO3-₄ to the reaction mixture completely blocks the hydrothermal formation of solid products by forming water soluble phosphotungstic acids.

UR - http://www.scopus.com/inward/record.url?scp=85055076062&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055076062&partnerID=8YFLogxK

U2 - 10.1166/jnn.2019.15790

DO - 10.1166/jnn.2019.15790

M3 - Article

VL - 19

SP - 498

EP - 501

JO - Journal of Nanoscience and Nanotechnology

T2 - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

SN - 1533-4880

IS - 1

ER -