Synthesis and proton conductivity of large-sized crack-free mesostructured phosphorus-oxide-doped silica monoliths

Liangming Xiong; Yong Yang; Jianlin Shi; Masayuki Nogami

doi:10.1016/j.micromeso.2007.08.016

Synthesis and proton conductivity of large-sized crack-free mesostructured phosphorus-oxide-doped silica monoliths

Liangming Xiong, Yong Yang, Jianlin Shi, Masayuki Nogami^*

^*Corresponding author for this work

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

12 Scopus citations

Abstract

Large-sized, uniform, crack-free, ordered mesostructured phosphorus-oxide-doped silica monoliths were prepared via optimizing the surface nature of vessels and exhibited an accessible pore structure in the surface after very mild drying and UV irradiation. The structure and morphology of monoliths were characterized using XRD, N₂-sorption, and AFM. The ³¹P-MAS NMR data suggest the presence of phosphorus and the hydrolysis of trymethyl phosphate in the doped sample. The proton conduction of mesostructured monoliths were investigated and the calculated conductivities ranged from 10^-7 to 10^-4 S cm^-1 at the temperatures below 100 °C. Among the monoliths, the doped one exhibited a much higher conductivity than the undoped one, though the phosphorus oxides disrupted the mesostructures.

Original language	English
Pages (from-to)	343-349
Number of pages	7
Journal	Microporous and Mesoporous Materials
Volume	111
Issue number	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2007.08.016
State	Published - 15 Apr 2008
Externally published	Yes

Keywords

Accessible surface
Crack-free membrane
Hydrophobic interface
Mesoporous phosphorus-oxide-doped silica monoliths
Proton conductivity
Solid-state electrolyte
Ultraviolet irradiation

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10.1016/j.micromeso.2007.08.016

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title = "Synthesis and proton conductivity of large-sized crack-free mesostructured phosphorus-oxide-doped silica monoliths",

abstract = "Large-sized, uniform, crack-free, ordered mesostructured phosphorus-oxide-doped silica monoliths were prepared via optimizing the surface nature of vessels and exhibited an accessible pore structure in the surface after very mild drying and UV irradiation. The structure and morphology of monoliths were characterized using XRD, N2-sorption, and AFM. The 31P-MAS NMR data suggest the presence of phosphorus and the hydrolysis of trymethyl phosphate in the doped sample. The proton conduction of mesostructured monoliths were investigated and the calculated conductivities ranged from 10-7 to 10-4 S cm-1 at the temperatures below 100 °C. Among the monoliths, the doped one exhibited a much higher conductivity than the undoped one, though the phosphorus oxides disrupted the mesostructures.",

keywords = "Accessible surface, Crack-free membrane, Hydrophobic interface, Mesoporous phosphorus-oxide-doped silica monoliths, Proton conductivity, Solid-state electrolyte, Ultraviolet irradiation",

author = "Liangming Xiong and Yong Yang and Jianlin Shi and Masayuki Nogami",

year = "2008",

month = apr,

day = "15",

doi = "10.1016/j.micromeso.2007.08.016",

language = "英语",

volume = "111",

pages = "343--349",

journal = "Microporous and Mesoporous Materials",

issn = "1387-1811",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

T1 - Synthesis and proton conductivity of large-sized crack-free mesostructured phosphorus-oxide-doped silica monoliths

AU - Xiong, Liangming

AU - Yang, Yong

AU - Shi, Jianlin

AU - Nogami, Masayuki

PY - 2008/4/15

Y1 - 2008/4/15

N2 - Large-sized, uniform, crack-free, ordered mesostructured phosphorus-oxide-doped silica monoliths were prepared via optimizing the surface nature of vessels and exhibited an accessible pore structure in the surface after very mild drying and UV irradiation. The structure and morphology of monoliths were characterized using XRD, N2-sorption, and AFM. The 31P-MAS NMR data suggest the presence of phosphorus and the hydrolysis of trymethyl phosphate in the doped sample. The proton conduction of mesostructured monoliths were investigated and the calculated conductivities ranged from 10-7 to 10-4 S cm-1 at the temperatures below 100 °C. Among the monoliths, the doped one exhibited a much higher conductivity than the undoped one, though the phosphorus oxides disrupted the mesostructures.

AB - Large-sized, uniform, crack-free, ordered mesostructured phosphorus-oxide-doped silica monoliths were prepared via optimizing the surface nature of vessels and exhibited an accessible pore structure in the surface after very mild drying and UV irradiation. The structure and morphology of monoliths were characterized using XRD, N2-sorption, and AFM. The 31P-MAS NMR data suggest the presence of phosphorus and the hydrolysis of trymethyl phosphate in the doped sample. The proton conduction of mesostructured monoliths were investigated and the calculated conductivities ranged from 10-7 to 10-4 S cm-1 at the temperatures below 100 °C. Among the monoliths, the doped one exhibited a much higher conductivity than the undoped one, though the phosphorus oxides disrupted the mesostructures.

KW - Accessible surface

KW - Crack-free membrane

KW - Hydrophobic interface

KW - Mesoporous phosphorus-oxide-doped silica monoliths

KW - Proton conductivity

KW - Solid-state electrolyte

KW - Ultraviolet irradiation

UR - https://www.scopus.com/pages/publications/41649117283

U2 - 10.1016/j.micromeso.2007.08.016

DO - 10.1016/j.micromeso.2007.08.016

M3 - 文章

AN - SCOPUS:41649117283

SN - 1387-1811

VL - 111

SP - 343

EP - 349

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 1-3

ER -

Synthesis and proton conductivity of large-sized crack-free mesostructured phosphorus-oxide-doped silica monoliths

Abstract

Keywords

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