Ag-Ag 0.08v 2O 5·nH 2O composite films as host materials for Li + intercalation

Ying Wang; Kyoungho Lee; Huamei Shang; Benjamin Wiley; Younan Xia; Guozhong Cao

doi:10.1002/pssa.200510026

Ag-Ag _0.08v ₂O ₅·nH ₂O composite films as host materials for Li ⁺ intercalation

Ying Wang
, Kyoungho Lee
, Huamei Shang
, Benjamin Wiley
, Younan Xia
, Guozhong Cao

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

Abstract

We have prepared Ag-Ag _0.08V ₂O ₅· nH ₂O composite films by dispersing Ag nanowires into V ₂O ₅·nH ₂O sol and have investigated electrochemical properties of the films for Li ⁺-ion intercalation applications. With the molar ratio of Ag nanowires to V ₂O ₅·nH ₂O as 0.1, such prepared films are composed of metallic Ag nanowires embedded in the matrix of Ag _0.08V ₂O ₅·nH ₂O, due to partial Ag reacted with V ₂O ₅·nH ₂O. At a current density of 85 mA/g, such Ag-Ag _0.08V ₂O ₅·nH ₂O film can intercalate about two equivalents of Li ions and delivers twice the capacity of the V ₂O ₅·nH ₂O xerogel film. Such improved electrochemical performance is ascribed to the changes in the microstructure and crystallinity of the Ag-Ag _0.08V ₂O ₃·nH ₂O films including (i) further amorphization of V ₂O ₃·nH ₂O, (ii) increased porosity, and (iii) enhancement of electrical conductivity.

Original language	English (US)
Pages (from-to)	R79-R81
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	202
Issue number	8
DOIs	https://doi.org/10.1002/pssa.200510026
State	Published - Jun 2005
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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title = "Ag-Ag 0.08v 2O 5·nH 2O composite films as host materials for Li + intercalation",

abstract = "We have prepared Ag-Ag 0.08V 2O 5· nH 2O composite films by dispersing Ag nanowires into V 2O 5·nH 2O sol and have investigated electrochemical properties of the films for Li +-ion intercalation applications. With the molar ratio of Ag nanowires to V 2O 5·nH 2O as 0.1, such prepared films are composed of metallic Ag nanowires embedded in the matrix of Ag 0.08V 2O 5·nH 2O, due to partial Ag reacted with V 2O 5·nH 2O. At a current density of 85 mA/g, such Ag-Ag 0.08V 2O 5·nH 2O film can intercalate about two equivalents of Li ions and delivers twice the capacity of the V 2O 5·nH 2O xerogel film. Such improved electrochemical performance is ascribed to the changes in the microstructure and crystallinity of the Ag-Ag 0.08V 2O 3·nH 2O films including (i) further amorphization of V 2O 3·nH 2O, (ii) increased porosity, and (iii) enhancement of electrical conductivity.",

author = "Ying Wang and Kyoungho Lee and Huamei Shang and Benjamin Wiley and Younan Xia and Guozhong Cao",

year = "2005",

month = jun,

doi = "10.1002/pssa.200510026",

language = "English (US)",

volume = "202",

pages = "R79--R81",

journal = "Physica Status Solidi (A) Applications and Materials Science",

issn = "1862-6300",

publisher = "Wiley-VCH Verlag",

number = "8",

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TY - JOUR

T1 - Ag-Ag 0.08v 2O 5·nH 2O composite films as host materials for Li + intercalation

AU - Wang, Ying

AU - Lee, Kyoungho

AU - Shang, Huamei

AU - Wiley, Benjamin

AU - Xia, Younan

AU - Cao, Guozhong

PY - 2005/6

Y1 - 2005/6

N2 - We have prepared Ag-Ag 0.08V 2O 5· nH 2O composite films by dispersing Ag nanowires into V 2O 5·nH 2O sol and have investigated electrochemical properties of the films for Li +-ion intercalation applications. With the molar ratio of Ag nanowires to V 2O 5·nH 2O as 0.1, such prepared films are composed of metallic Ag nanowires embedded in the matrix of Ag 0.08V 2O 5·nH 2O, due to partial Ag reacted with V 2O 5·nH 2O. At a current density of 85 mA/g, such Ag-Ag 0.08V 2O 5·nH 2O film can intercalate about two equivalents of Li ions and delivers twice the capacity of the V 2O 5·nH 2O xerogel film. Such improved electrochemical performance is ascribed to the changes in the microstructure and crystallinity of the Ag-Ag 0.08V 2O 3·nH 2O films including (i) further amorphization of V 2O 3·nH 2O, (ii) increased porosity, and (iii) enhancement of electrical conductivity.

AB - We have prepared Ag-Ag 0.08V 2O 5· nH 2O composite films by dispersing Ag nanowires into V 2O 5·nH 2O sol and have investigated electrochemical properties of the films for Li +-ion intercalation applications. With the molar ratio of Ag nanowires to V 2O 5·nH 2O as 0.1, such prepared films are composed of metallic Ag nanowires embedded in the matrix of Ag 0.08V 2O 5·nH 2O, due to partial Ag reacted with V 2O 5·nH 2O. At a current density of 85 mA/g, such Ag-Ag 0.08V 2O 5·nH 2O film can intercalate about two equivalents of Li ions and delivers twice the capacity of the V 2O 5·nH 2O xerogel film. Such improved electrochemical performance is ascribed to the changes in the microstructure and crystallinity of the Ag-Ag 0.08V 2O 3·nH 2O films including (i) further amorphization of V 2O 3·nH 2O, (ii) increased porosity, and (iii) enhancement of electrical conductivity.

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U2 - 10.1002/pssa.200510026

DO - 10.1002/pssa.200510026

M3 - Article

AN - SCOPUS:20844456003

SN - 1862-6300

VL - 202

SP - R79-R81

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 8

ER -

Ag-Ag _0.08v ₂O ₅·nH ₂O composite films as host materials for Li ⁺ intercalation

Abstract

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