Syntheses and proton conductivity of mesoporous Nd2O3-SiO2 and NdOCl-SiO2 composites

Wenbo Yue; Xiaoxiang Xu; Zixue Su; John Thomas Sirr Irvine; Yongcun Zou; Yunling Liu; Wuzong Zhou

doi:10.1007/s10853-011-6015-5

Syntheses and proton conductivity of mesoporous Nd₂O₃-SiO₂and NdOCl-SiO₂ composites

Wenbo Yue, Xiaoxiang Xu, Zixue Su, John Thomas Sirr Irvine, Yongcun Zou, Yunling Liu, Wuzong Zhou

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

Abstract

Two mesoporous oxide composites of Nd2O3-SiO2 and NdOCl-SiO2 were synthesized using SBA-15 as a template and neodymium nitrate or neodymium chloride as a precursor. The porous Nd2O3-SiO2 with a SBA-15-like structure has amorphous walls and the porous NdOCl-SiO2 with a replicated structure of SBA-15 has crystalline walls. These porous materials were characterized by X-ray diffraction, transmission electron microscopy and nitrogen adsorption/desorption. They exhibited significant proton conductivities in the presence of moisture at low temperatures and the highest conductivity observed was 4.55 x 10(-4) S/cm at 47 A degrees C in wet air (RH = 28.6%).

Original language	English
Pages (from-to)	2146-2154
Number of pages	9
Journal	Journal of Materials Science
Volume	47
Issue number	5
DOIs	https://doi.org/10.1007/s10853-011-6015-5
Publication status	Published - Mar 2012

Keywords

SOL-GEL PROCESS
NEODYMIUM OXIDE
METAL-OXIDES
THIN-FILMS
INTERMEDIATE TEMPERATURE
CARBON FRAMEWORKS
SILICA
SURFACTANT
CATALYSIS
TIO2

Access to Document

10.1007/s10853-011-6015-5

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Tao, S. (CoI)
EPSRC
1/01/08 → 31/12/12
Project: Standard

Cite this

@article{c389e80b3a744dc58055099ccbbc7ca4,

title = "Syntheses and proton conductivity of mesoporous Nd2O3-SiO2 and NdOCl-SiO2 composites",

abstract = "Two mesoporous oxide composites of Nd2O3-SiO2 and NdOCl-SiO2 were synthesized using SBA-15 as a template and neodymium nitrate or neodymium chloride as a precursor. The porous Nd2O3-SiO2 with a SBA-15-like structure has amorphous walls and the porous NdOCl-SiO2 with a replicated structure of SBA-15 has crystalline walls. These porous materials were characterized by X-ray diffraction, transmission electron microscopy and nitrogen adsorption/desorption. They exhibited significant proton conductivities in the presence of moisture at low temperatures and the highest conductivity observed was 4.55 x 10(-4) S/cm at 47 A degrees C in wet air (RH = 28.6%).",

keywords = "SOL-GEL PROCESS, NEODYMIUM OXIDE, METAL-OXIDES, THIN-FILMS, INTERMEDIATE TEMPERATURE, CARBON FRAMEWORKS, SILICA, SURFACTANT, CATALYSIS, TIO2",

author = "Wenbo Yue and Xiaoxiang Xu and Zixue Su and Irvine, {John Thomas Sirr} and Yongcun Zou and Yunling Liu and Wuzong Zhou",

year = "2012",

month = mar,

doi = "10.1007/s10853-011-6015-5",

language = "English",

volume = "47",

pages = "2146--2154",

journal = "Journal of Materials Science",

issn = "0022-2461",

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TY - JOUR

T1 - Syntheses and proton conductivity of mesoporous Nd2O3-SiO2 and NdOCl-SiO2 composites

AU - Yue, Wenbo

AU - Xu, Xiaoxiang

AU - Su, Zixue

AU - Irvine, John Thomas Sirr

AU - Zou, Yongcun

AU - Liu, Yunling

AU - Zhou, Wuzong

PY - 2012/3

Y1 - 2012/3

N2 - Two mesoporous oxide composites of Nd2O3-SiO2 and NdOCl-SiO2 were synthesized using SBA-15 as a template and neodymium nitrate or neodymium chloride as a precursor. The porous Nd2O3-SiO2 with a SBA-15-like structure has amorphous walls and the porous NdOCl-SiO2 with a replicated structure of SBA-15 has crystalline walls. These porous materials were characterized by X-ray diffraction, transmission electron microscopy and nitrogen adsorption/desorption. They exhibited significant proton conductivities in the presence of moisture at low temperatures and the highest conductivity observed was 4.55 x 10(-4) S/cm at 47 A degrees C in wet air (RH = 28.6%).

AB - Two mesoporous oxide composites of Nd2O3-SiO2 and NdOCl-SiO2 were synthesized using SBA-15 as a template and neodymium nitrate or neodymium chloride as a precursor. The porous Nd2O3-SiO2 with a SBA-15-like structure has amorphous walls and the porous NdOCl-SiO2 with a replicated structure of SBA-15 has crystalline walls. These porous materials were characterized by X-ray diffraction, transmission electron microscopy and nitrogen adsorption/desorption. They exhibited significant proton conductivities in the presence of moisture at low temperatures and the highest conductivity observed was 4.55 x 10(-4) S/cm at 47 A degrees C in wet air (RH = 28.6%).

KW - SOL-GEL PROCESS

KW - NEODYMIUM OXIDE

KW - METAL-OXIDES

KW - THIN-FILMS

KW - INTERMEDIATE TEMPERATURE

KW - CARBON FRAMEWORKS

KW - SILICA

KW - SURFACTANT

KW - CATALYSIS

KW - TIO2

U2 - 10.1007/s10853-011-6015-5

DO - 10.1007/s10853-011-6015-5

M3 - Article

SN - 0022-2461

VL - 47

SP - 2146

EP - 2154

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 5

ER -

Syntheses and proton conductivity of mesoporous Nd2O3-SiO2 and NdOCl-SiO2 composites

Abstract

Keywords

Access to Document

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Projects

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology

Cite this

Syntheses and proton conductivity of mesoporous Nd₂O₃-SiO₂and NdOCl-SiO₂ composites