Analysis of growth kinetics and impact of NH 3 on the morphology evolution of hexagonal-prism shaped Y 4 O(OH) 9 NO 3 /Y 2 O 3 single crystals

Sudeshna Ray; Govind B. Nair; S. J. Dhoble; H. Kato; Masato Kakihana; Teng-Ming Chen

doi:10.1016/j.materresbull.2017.07.033

Analysis of growth kinetics and impact of NH ₃ on the morphology evolution of hexagonal-prism shaped Y ₄ O(OH) ₉ NO ₃ /Y ₂ O ₃ single crystals

Sudeshna Ray, Govind B. Nair^*, S. J. Dhoble, H. Kato, Masato Kakihana, Teng-Ming Chen

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The effect of NH ₃ on the morphology evolution of single crystalline hexagonal-prism like Y ₄ O(OH) ₉ NO ₃ and Y ₂ O ₃ has been systematically investigated, as a function of reaction time, by using a combination of powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). Rational control over the morphology has been achieved by the choice of suitable electrolytes like NaNO ₃ , KNO ₃ , NH ₄ NO ₃ , KCl and NH ₄ Cl in the presence of NH ₄ OH. We report that the cross-sectional geometry of hydrothermally grown one-dimensional Y ₄ O(OH) ₉ NO ₃ crystals can be tuned from spherical to hexagonal-prism like shape by introducing a particular reagent like NH ₄ NO ₃ in the presence of NH ₄ OH. An ‘oriented attachment’ mediated growth process takes place along with the ‘dissolution-recrystallization’ route which eventually resulted in the generation of the single crystals with hexagonal-prism like morphology.

Original language	English
Pages (from-to)	597-606
Number of pages	10
Journal	Materials Research Bulletin
Volume	95
DOIs	https://doi.org/10.1016/j.materresbull.2017.07.033
State	Published - 1 Nov 2017

Keywords

Ammonia
Dissolution recrystallization
Electrolytes
Hexagonal-prism

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@article{567d30ff6e8e4836aebb497e5fdf42c8,

title = "Analysis of growth kinetics and impact of NH 3 on the morphology evolution of hexagonal-prism shaped Y 4 O(OH) 9 NO 3 /Y 2 O 3 single crystals",

abstract = " The effect of NH 3 on the morphology evolution of single crystalline hexagonal-prism like Y 4 O(OH) 9 NO 3 and Y 2 O 3 has been systematically investigated, as a function of reaction time, by using a combination of powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). Rational control over the morphology has been achieved by the choice of suitable electrolytes like NaNO 3 , KNO 3 , NH 4 NO 3 , KCl and NH 4 Cl in the presence of NH 4 OH. We report that the cross-sectional geometry of hydrothermally grown one-dimensional Y 4 O(OH) 9 NO 3 crystals can be tuned from spherical to hexagonal-prism like shape by introducing a particular reagent like NH 4 NO 3 in the presence of NH 4 OH. An {\textquoteleft}oriented attachment{\textquoteright} mediated growth process takes place along with the {\textquoteleft}dissolution-recrystallization{\textquoteright} route which eventually resulted in the generation of the single crystals with hexagonal-prism like morphology. ",

keywords = "Ammonia, Dissolution recrystallization, Electrolytes, Hexagonal-prism",

author = "Sudeshna Ray and Nair, {Govind B.} and Dhoble, {S. J.} and H. Kato and Masato Kakihana and Teng-Ming Chen",

year = "2017",

month = nov,

day = "1",

doi = "10.1016/j.materresbull.2017.07.033",

language = "English",

volume = "95",

pages = "597--606",

journal = "Materials Research Bulletin",

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T1 - Analysis of growth kinetics and impact of NH 3 on the morphology evolution of hexagonal-prism shaped Y 4 O(OH) 9 NO 3 /Y 2 O 3 single crystals

AU - Ray, Sudeshna

AU - Nair, Govind B.

AU - Dhoble, S. J.

AU - Kato, H.

AU - Kakihana, Masato

AU - Chen, Teng-Ming

PY - 2017/11/1

Y1 - 2017/11/1

N2 - The effect of NH 3 on the morphology evolution of single crystalline hexagonal-prism like Y 4 O(OH) 9 NO 3 and Y 2 O 3 has been systematically investigated, as a function of reaction time, by using a combination of powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). Rational control over the morphology has been achieved by the choice of suitable electrolytes like NaNO 3 , KNO 3 , NH 4 NO 3 , KCl and NH 4 Cl in the presence of NH 4 OH. We report that the cross-sectional geometry of hydrothermally grown one-dimensional Y 4 O(OH) 9 NO 3 crystals can be tuned from spherical to hexagonal-prism like shape by introducing a particular reagent like NH 4 NO 3 in the presence of NH 4 OH. An ‘oriented attachment’ mediated growth process takes place along with the ‘dissolution-recrystallization’ route which eventually resulted in the generation of the single crystals with hexagonal-prism like morphology.

AB - The effect of NH 3 on the morphology evolution of single crystalline hexagonal-prism like Y 4 O(OH) 9 NO 3 and Y 2 O 3 has been systematically investigated, as a function of reaction time, by using a combination of powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). Rational control over the morphology has been achieved by the choice of suitable electrolytes like NaNO 3 , KNO 3 , NH 4 NO 3 , KCl and NH 4 Cl in the presence of NH 4 OH. We report that the cross-sectional geometry of hydrothermally grown one-dimensional Y 4 O(OH) 9 NO 3 crystals can be tuned from spherical to hexagonal-prism like shape by introducing a particular reagent like NH 4 NO 3 in the presence of NH 4 OH. An ‘oriented attachment’ mediated growth process takes place along with the ‘dissolution-recrystallization’ route which eventually resulted in the generation of the single crystals with hexagonal-prism like morphology.

KW - Ammonia

KW - Dissolution recrystallization

KW - Electrolytes

KW - Hexagonal-prism

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DO - 10.1016/j.materresbull.2017.07.033

M3 - Article

AN - SCOPUS:85028602212

SN - 0025-5408

VL - 95

SP - 597

EP - 606

JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

Analysis of growth kinetics and impact of NH ₃ on the morphology evolution of hexagonal-prism shaped Y ₄ O(OH) ₉ NO ₃ /Y ₂ O ₃ single crystals

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Keywords

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