Direct syntheses of Lan+1NinO3n+1 phases (n=1, 2, 3 and ∞) from nanosized co-crystallites

Xiaole Weng; Paul Boldrin; Isaac Abrahams; Stephen J. Skinner; Suela Kellici; Jawwad A. Darr

doi:10.1016/j.jssc.2008.02.006

Direct syntheses of Lan+1NinO3n+1 phases (n=1, 2, 3 and ∞) from nanosized co-crystallites

Xiaole Weng, Paul Boldrin, Isaac Abrahams, Stephen J. Skinner, Suela Kellici, Jawwad A. Darr

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

49 Citations (Scopus)

Abstract

A new direct route for the "bottom up" syntheses of phases in the La_n+1Ni_nO_3n+1 series (n=1, 2, 3 and ∞) has been achieved via single-step heat treatments of nanosized co-crystallized precursors. The co-crystallized precursors were prepared using a continuous hydrothermal flow synthesis system that uses a superheated water flow at ca. 400 °C and 24.1 MPa to produce nanoparticulate slurries. Overall, a significant reduction in time and number of steps for the syntheses of La₃Ni₂O₇ and La₄Ni₃O₁₀ was achieved compared with more conventional synthesis methods, which typically require multiple homogenization and reheating steps over several days.

Original language	English
Pages (from-to)	1123-1132
Number of pages	10
Journal	Journal of Solid State Chemistry
Volume	181
Issue number	5
DOIs	https://doi.org/10.1016/j.jssc.2008.02.006
Publication status	Published - 10 Mar 2008
Externally published	Yes

Keywords

Continuous hydrothermal flow synthesis
LaNiO series
Solid oxide fuel cell
Supercritical water

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10.1016/j.jssc.2008.02.006

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title = "Direct syntheses of Lan+1NinO3n+1 phases (n=1, 2, 3 and ∞) from nanosized co-crystallites",

abstract = "A new direct route for the {"}bottom up{"} syntheses of phases in the Lan+1NinO3n+1 series (n=1, 2, 3 and ∞) has been achieved via single-step heat treatments of nanosized co-crystallized precursors. The co-crystallized precursors were prepared using a continuous hydrothermal flow synthesis system that uses a superheated water flow at ca. 400 °C and 24.1 MPa to produce nanoparticulate slurries. Overall, a significant reduction in time and number of steps for the syntheses of La3Ni2O7 and La4Ni3O10 was achieved compared with more conventional synthesis methods, which typically require multiple homogenization and reheating steps over several days.",

keywords = "Continuous hydrothermal flow synthesis, LaNiO series, Solid oxide fuel cell, Supercritical water",

author = "Xiaole Weng and Paul Boldrin and Isaac Abrahams and Skinner, {Stephen J.} and Suela Kellici and Darr, {Jawwad A.}",

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doi = "10.1016/j.jssc.2008.02.006",

language = "English",

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T1 - Direct syntheses of Lan+1NinO3n+1 phases (n=1, 2, 3 and ∞) from nanosized co-crystallites

AU - Weng, Xiaole

AU - Boldrin, Paul

AU - Abrahams, Isaac

AU - Skinner, Stephen J.

AU - Kellici, Suela

AU - Darr, Jawwad A.

PY - 2008/3/10

Y1 - 2008/3/10

N2 - A new direct route for the "bottom up" syntheses of phases in the Lan+1NinO3n+1 series (n=1, 2, 3 and ∞) has been achieved via single-step heat treatments of nanosized co-crystallized precursors. The co-crystallized precursors were prepared using a continuous hydrothermal flow synthesis system that uses a superheated water flow at ca. 400 °C and 24.1 MPa to produce nanoparticulate slurries. Overall, a significant reduction in time and number of steps for the syntheses of La3Ni2O7 and La4Ni3O10 was achieved compared with more conventional synthesis methods, which typically require multiple homogenization and reheating steps over several days.

AB - A new direct route for the "bottom up" syntheses of phases in the Lan+1NinO3n+1 series (n=1, 2, 3 and ∞) has been achieved via single-step heat treatments of nanosized co-crystallized precursors. The co-crystallized precursors were prepared using a continuous hydrothermal flow synthesis system that uses a superheated water flow at ca. 400 °C and 24.1 MPa to produce nanoparticulate slurries. Overall, a significant reduction in time and number of steps for the syntheses of La3Ni2O7 and La4Ni3O10 was achieved compared with more conventional synthesis methods, which typically require multiple homogenization and reheating steps over several days.

KW - Continuous hydrothermal flow synthesis

KW - LaNiO series

KW - Solid oxide fuel cell

KW - Supercritical water

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U2 - 10.1016/j.jssc.2008.02.006

DO - 10.1016/j.jssc.2008.02.006

M3 - Article

SN - 0022-4596

VL - 181

SP - 1123

EP - 1132

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 5

ER -

Direct syntheses of Lan+1NinO3n+1 phases (n=1, 2, 3 and ∞) from nanosized co-crystallites

Abstract

Keywords

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