Synthesis and characterisation of gibbsite nanostructures

Y Liu; D Ma; Ross Alexander Blackley; Wuzong Zhou; X W Han; X H Bao

doi:10.1021/jp7101572

Synthesis and characterisation of gibbsite nanostructures

Y Liu, D Ma, Ross Alexander Blackley, Wuzong Zhou, X W Han, X H Bao

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

Abstract

Single-crystal gibbsite nanorods with a high aspect ratio were synthesized by a facile hydrothermal method. Characterizations by HRTEM, SAED, and XRD revealed that the nanorods prefer to grow along the c-axis. The nanorods can be easily transformed to chi-alumina by calcination at 250 degrees C, while the nanorod morphology is well-maintained. HRTEM indicates that the chi-alumina nanorod possesses a single-crystal-like structure formed by orientated connection of crystalline nanodomains. Altering the synthetic procedure will lead to alumina nanostructures with a different phase structure and morphology, such as alumina nanotubes.

Original language	English
Pages (from-to)	4124-4128
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	11
Early online date	23 Feb 2008
DOIs	https://doi.org/10.1021/jp7101572
Publication status	Published - 20 Mar 2008

Keywords

FORMATION MECHANISM
ALUMINATE SOLUTIONS
OPTICAL-PROPERTIES
MESOPOROUS SILICA
CRYSTAL-GROWTH
AL2O3 FILMS
NANOWIRES
SURFACE
AGGREGATION
DISPERSIONS

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title = "Synthesis and characterisation of gibbsite nanostructures",

abstract = "Single-crystal gibbsite nanorods with a high aspect ratio were synthesized by a facile hydrothermal method. Characterizations by HRTEM, SAED, and XRD revealed that the nanorods prefer to grow along the c-axis. The nanorods can be easily transformed to chi-alumina by calcination at 250 degrees C, while the nanorod morphology is well-maintained. HRTEM indicates that the chi-alumina nanorod possesses a single-crystal-like structure formed by orientated connection of crystalline nanodomains. Altering the synthetic procedure will lead to alumina nanostructures with a different phase structure and morphology, such as alumina nanotubes.",

keywords = "FORMATION MECHANISM, ALUMINATE SOLUTIONS, OPTICAL-PROPERTIES, MESOPOROUS SILICA, CRYSTAL-GROWTH, AL2O3 FILMS, NANOWIRES, SURFACE, AGGREGATION, DISPERSIONS",

author = "Y Liu and D Ma and Blackley, {Ross Alexander} and Wuzong Zhou and Han, {X W} and Bao, {X H}",

year = "2008",

month = mar,

day = "20",

doi = "10.1021/jp7101572",

language = "English",

volume = "112",

pages = "4124--4128",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society (ACS)",

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TY - JOUR

T1 - Synthesis and characterisation of gibbsite nanostructures

AU - Liu, Y

AU - Ma, D

AU - Blackley, Ross Alexander

AU - Zhou, Wuzong

AU - Han, X W

AU - Bao, X H

PY - 2008/3/20

Y1 - 2008/3/20

N2 - Single-crystal gibbsite nanorods with a high aspect ratio were synthesized by a facile hydrothermal method. Characterizations by HRTEM, SAED, and XRD revealed that the nanorods prefer to grow along the c-axis. The nanorods can be easily transformed to chi-alumina by calcination at 250 degrees C, while the nanorod morphology is well-maintained. HRTEM indicates that the chi-alumina nanorod possesses a single-crystal-like structure formed by orientated connection of crystalline nanodomains. Altering the synthetic procedure will lead to alumina nanostructures with a different phase structure and morphology, such as alumina nanotubes.

AB - Single-crystal gibbsite nanorods with a high aspect ratio were synthesized by a facile hydrothermal method. Characterizations by HRTEM, SAED, and XRD revealed that the nanorods prefer to grow along the c-axis. The nanorods can be easily transformed to chi-alumina by calcination at 250 degrees C, while the nanorod morphology is well-maintained. HRTEM indicates that the chi-alumina nanorod possesses a single-crystal-like structure formed by orientated connection of crystalline nanodomains. Altering the synthetic procedure will lead to alumina nanostructures with a different phase structure and morphology, such as alumina nanotubes.

KW - FORMATION MECHANISM

KW - ALUMINATE SOLUTIONS

KW - OPTICAL-PROPERTIES

KW - MESOPOROUS SILICA

KW - CRYSTAL-GROWTH

KW - AL2O3 FILMS

KW - NANOWIRES

KW - SURFACE

KW - AGGREGATION

KW - DISPERSIONS

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U2 - 10.1021/jp7101572

DO - 10.1021/jp7101572

M3 - Article

SN - 1932-7447

VL - 112

SP - 4124

EP - 4128

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 11

ER -

Synthesis and characterisation of gibbsite nanostructures

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Keywords

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