Electrochemical properties of blockcopolymer templated mesoporous silicates with heteropolyacids clusters

Hui Suk Yun; Makato Kuwabara; Hao Shen Zhou; Itaru Honma

Electrochemical properties of blockcopolymer templated mesoporous silicates with heteropolyacids clusters

Hui Suk Yun, Makato Kuwabara, Hao Shen Zhou, Itaru Honma

Research output: Contribution to journal › Conference article › peer-review

Abstract

In this paper, we have studied a method of loading 12-tungstophosphoric acid (H₃PW₁₂O₄₀; PWA) into blockcopolymer templated (designed EO₂₀PO₇₀EO₂₀; Pluronic P-123) mesoporous SiO₂ framework without a disordering of mesostructure and without remarkable decrease of specific surface area through one-step condensation process. A precursor solution is initially prepared by TEOS (tetraethoxysilane) hydrolyzed with templating polymer (eg. triblock copolymer), and then mixed directly with PWA to condense mesoporous silicate products that incorporate PWA clusters in the framework. Heteropolyanions are possibly incorporated in the framework silicates. Electrochemical properties of these PWA impregnated mesoporous silicates were studied as electrode materials of Li ion battery as well as solid proton conductors.

Original language	English
Pages (from-to)	301-305
Number of pages	5
Journal	Materials Research Society Symposium - Proceedings
Volume	756
Publication status	Published - 2003
Externally published	Yes
Event	Solid State Ionics 2002 - Boston MA, United States Duration: 2002 Dec 2 → 2002 Dec 5

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Electrochemical properties of blockcopolymer templated mesoporous silicates with heteropolyacids clusters",

abstract = "In this paper, we have studied a method of loading 12-tungstophosphoric acid (H3PW12O40; PWA) into blockcopolymer templated (designed EO20PO70EO20; Pluronic P-123) mesoporous SiO2 framework without a disordering of mesostructure and without remarkable decrease of specific surface area through one-step condensation process. A precursor solution is initially prepared by TEOS (tetraethoxysilane) hydrolyzed with templating polymer (eg. triblock copolymer), and then mixed directly with PWA to condense mesoporous silicate products that incorporate PWA clusters in the framework. Heteropolyanions are possibly incorporated in the framework silicates. Electrochemical properties of these PWA impregnated mesoporous silicates were studied as electrode materials of Li ion battery as well as solid proton conductors.",

author = "Yun, {Hui Suk} and Makato Kuwabara and Zhou, {Hao Shen} and Itaru Honma",

year = "2003",

language = "English",

volume = "756",

pages = "301--305",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Solid State Ionics 2002 ; Conference date: 02-12-2002 Through 05-12-2002",

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T1 - Electrochemical properties of blockcopolymer templated mesoporous silicates with heteropolyacids clusters

AU - Yun, Hui Suk

AU - Kuwabara, Makato

AU - Zhou, Hao Shen

AU - Honma, Itaru

PY - 2003

Y1 - 2003

N2 - In this paper, we have studied a method of loading 12-tungstophosphoric acid (H3PW12O40; PWA) into blockcopolymer templated (designed EO20PO70EO20; Pluronic P-123) mesoporous SiO2 framework without a disordering of mesostructure and without remarkable decrease of specific surface area through one-step condensation process. A precursor solution is initially prepared by TEOS (tetraethoxysilane) hydrolyzed with templating polymer (eg. triblock copolymer), and then mixed directly with PWA to condense mesoporous silicate products that incorporate PWA clusters in the framework. Heteropolyanions are possibly incorporated in the framework silicates. Electrochemical properties of these PWA impregnated mesoporous silicates were studied as electrode materials of Li ion battery as well as solid proton conductors.

AB - In this paper, we have studied a method of loading 12-tungstophosphoric acid (H3PW12O40; PWA) into blockcopolymer templated (designed EO20PO70EO20; Pluronic P-123) mesoporous SiO2 framework without a disordering of mesostructure and without remarkable decrease of specific surface area through one-step condensation process. A precursor solution is initially prepared by TEOS (tetraethoxysilane) hydrolyzed with templating polymer (eg. triblock copolymer), and then mixed directly with PWA to condense mesoporous silicate products that incorporate PWA clusters in the framework. Heteropolyanions are possibly incorporated in the framework silicates. Electrochemical properties of these PWA impregnated mesoporous silicates were studied as electrode materials of Li ion battery as well as solid proton conductors.

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M3 - Conference article

AN - SCOPUS:0037811292

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EP - 305

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

SN - 0272-9172

T2 - Solid State Ionics 2002

Y2 - 2 December 2002 through 5 December 2002

ER -

Electrochemical properties of blockcopolymer templated mesoporous silicates with heteropolyacids clusters

Abstract

ASJC Scopus subject areas

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