Morphology-controlled synthesis and growth mechanism of lead-free bismuth sodium titanate nanostructures via the hydrothermal route

Ran Lu; Jie Yuan; Honglong Shi; Bin Li; Wenzhong Wang; Dawei Wang; Maosheng Cao

doi:10.1039/c3ce40139a

Morphology-controlled synthesis and growth mechanism of lead-free bismuth sodium titanate nanostructures via the hydrothermal route

Ran Lu, Jie Yuan, Honglong Shi, Bin Li, Wenzhong Wang, Dawei Wang, Maosheng Cao^*

^*Corresponding author for this work

School of Material Science and Engineering

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

61 Citations (Scopus)

Abstract

Lead-free bismuth sodium titanate (Bi_0.5Na_0.5TiO ₃, BNT) perovskite nanostructures including nanoplates, nanocubes and nanowires were synthesized by a facile hydrothermal method without any additives or templates. The crystallization and morphologies of the hydrothermal derived BNT were controlled by simply adjusting the reaction time and NaOH concentration, which were examined by XRD, SEM, TEM and HRTEM techniques in detail. The BNT nanoplates of 400 nm in length and several nanometers in thickness were obtained at 200°C for 48 h with NaOH concentration of 8-12 M. The uniformly BNT cubes of 1-2 μm in length were synthesized at 200°C with NaOH concentration of 16-18 M for 36-48 h. The BNT nanowires with 50-100 nm in diameter and more than 5 μm in length were obtained when the holding time was prolonged to 60 h. The probable growth mechanisms of the BNT nanostructures with various morphologies were proposed.

Original language	English
Pages (from-to)	3984-3991
Number of pages	8
Journal	CrystEngComm
Volume	15
Issue number	19
DOIs	https://doi.org/10.1039/c3ce40139a
Publication status	Published - 21 May 2013

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title = "Morphology-controlled synthesis and growth mechanism of lead-free bismuth sodium titanate nanostructures via the hydrothermal route",

abstract = "Lead-free bismuth sodium titanate (Bi0.5Na0.5TiO 3, BNT) perovskite nanostructures including nanoplates, nanocubes and nanowires were synthesized by a facile hydrothermal method without any additives or templates. The crystallization and morphologies of the hydrothermal derived BNT were controlled by simply adjusting the reaction time and NaOH concentration, which were examined by XRD, SEM, TEM and HRTEM techniques in detail. The BNT nanoplates of 400 nm in length and several nanometers in thickness were obtained at 200°C for 48 h with NaOH concentration of 8-12 M. The uniformly BNT cubes of 1-2 μm in length were synthesized at 200°C with NaOH concentration of 16-18 M for 36-48 h. The BNT nanowires with 50-100 nm in diameter and more than 5 μm in length were obtained when the holding time was prolonged to 60 h. The probable growth mechanisms of the BNT nanostructures with various morphologies were proposed.",

author = "Ran Lu and Jie Yuan and Honglong Shi and Bin Li and Wenzhong Wang and Dawei Wang and Maosheng Cao",

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TY - JOUR

T1 - Morphology-controlled synthesis and growth mechanism of lead-free bismuth sodium titanate nanostructures via the hydrothermal route

AU - Lu, Ran

AU - Yuan, Jie

AU - Shi, Honglong

AU - Li, Bin

AU - Wang, Wenzhong

AU - Wang, Dawei

AU - Cao, Maosheng

PY - 2013/5/21

Y1 - 2013/5/21

N2 - Lead-free bismuth sodium titanate (Bi0.5Na0.5TiO 3, BNT) perovskite nanostructures including nanoplates, nanocubes and nanowires were synthesized by a facile hydrothermal method without any additives or templates. The crystallization and morphologies of the hydrothermal derived BNT were controlled by simply adjusting the reaction time and NaOH concentration, which were examined by XRD, SEM, TEM and HRTEM techniques in detail. The BNT nanoplates of 400 nm in length and several nanometers in thickness were obtained at 200°C for 48 h with NaOH concentration of 8-12 M. The uniformly BNT cubes of 1-2 μm in length were synthesized at 200°C with NaOH concentration of 16-18 M for 36-48 h. The BNT nanowires with 50-100 nm in diameter and more than 5 μm in length were obtained when the holding time was prolonged to 60 h. The probable growth mechanisms of the BNT nanostructures with various morphologies were proposed.

AB - Lead-free bismuth sodium titanate (Bi0.5Na0.5TiO 3, BNT) perovskite nanostructures including nanoplates, nanocubes and nanowires were synthesized by a facile hydrothermal method without any additives or templates. The crystallization and morphologies of the hydrothermal derived BNT were controlled by simply adjusting the reaction time and NaOH concentration, which were examined by XRD, SEM, TEM and HRTEM techniques in detail. The BNT nanoplates of 400 nm in length and several nanometers in thickness were obtained at 200°C for 48 h with NaOH concentration of 8-12 M. The uniformly BNT cubes of 1-2 μm in length were synthesized at 200°C with NaOH concentration of 16-18 M for 36-48 h. The BNT nanowires with 50-100 nm in diameter and more than 5 μm in length were obtained when the holding time was prolonged to 60 h. The probable growth mechanisms of the BNT nanostructures with various morphologies were proposed.

UR - http://www.scopus.com/inward/record.url?scp=84876718972&partnerID=8YFLogxK

U2 - 10.1039/c3ce40139a

DO - 10.1039/c3ce40139a

M3 - Article

AN - SCOPUS:84876718972

SN - 1466-8033

VL - 15

SP - 3984

EP - 3991

JO - CrystEngComm

JF - CrystEngComm

IS - 19

ER -

Morphology-controlled synthesis and growth mechanism of lead-free bismuth sodium titanate nanostructures via the hydrothermal route

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