Synthesis of one-dimensional potassium tungsten bronze with excellent near-infrared absorption property

Chongshen Guo; Shu Yin; Lijun Huang; Tsugio Sato

doi:10.1021/am200631e

Synthesis of one-dimensional potassium tungsten bronze with excellent near-infrared absorption property

Chongshen Guo, Shu Yin, Lijun Huang, Tsugio Sato

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

109 Citations (Scopus)

Abstract

Potassium tungsten oxide nanofibers were successfully synthesized via a facile hydrothermal reaction route in the presence of sulfate. After reduction under a reductive atmosphere of H₂(5 vol %)/N₂, the potassium tungsten oxide transformed to potassium tungsten bronze. Because of the lack of free electrons, the potassium tungsten oxide (K_xWO _3+x/2) showed no NIR shielding performance; however, the potassium tungsten bronze (K_xWO₃) showed promising optical characteristics such as high transmittance for visible light, as well as high shielding performance for near-infrared lights, indicating its potential application as a solar filter. Meanwhile, the potassium tungsten bronze (K _xWO₃) showed strong absorption of near-infrared light and instantaneous conversion of photoenergy to heat.

Original language	English
Pages (from-to)	2794-2799
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	3
Issue number	7
DOIs	https://doi.org/10.1021/am200631e
Publication status	Published - 2011 Jul 27

Keywords

IR shielding
KWO
near-infrared absorption
tungsten bronze

ASJC Scopus subject areas

Materials Science(all)

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10.1021/am200631e

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title = "Synthesis of one-dimensional potassium tungsten bronze with excellent near-infrared absorption property",

abstract = "Potassium tungsten oxide nanofibers were successfully synthesized via a facile hydrothermal reaction route in the presence of sulfate. After reduction under a reductive atmosphere of H2(5 vol %)/N2, the potassium tungsten oxide transformed to potassium tungsten bronze. Because of the lack of free electrons, the potassium tungsten oxide (KxWO 3+x/2) showed no NIR shielding performance; however, the potassium tungsten bronze (KxWO3) showed promising optical characteristics such as high transmittance for visible light, as well as high shielding performance for near-infrared lights, indicating its potential application as a solar filter. Meanwhile, the potassium tungsten bronze (K xWO3) showed strong absorption of near-infrared light and instantaneous conversion of photoenergy to heat.",

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author = "Chongshen Guo and Shu Yin and Lijun Huang and Tsugio Sato",

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T1 - Synthesis of one-dimensional potassium tungsten bronze with excellent near-infrared absorption property

AU - Guo, Chongshen

AU - Yin, Shu

AU - Huang, Lijun

AU - Sato, Tsugio

PY - 2011/7/27

Y1 - 2011/7/27

N2 - Potassium tungsten oxide nanofibers were successfully synthesized via a facile hydrothermal reaction route in the presence of sulfate. After reduction under a reductive atmosphere of H2(5 vol %)/N2, the potassium tungsten oxide transformed to potassium tungsten bronze. Because of the lack of free electrons, the potassium tungsten oxide (KxWO 3+x/2) showed no NIR shielding performance; however, the potassium tungsten bronze (KxWO3) showed promising optical characteristics such as high transmittance for visible light, as well as high shielding performance for near-infrared lights, indicating its potential application as a solar filter. Meanwhile, the potassium tungsten bronze (K xWO3) showed strong absorption of near-infrared light and instantaneous conversion of photoenergy to heat.

AB - Potassium tungsten oxide nanofibers were successfully synthesized via a facile hydrothermal reaction route in the presence of sulfate. After reduction under a reductive atmosphere of H2(5 vol %)/N2, the potassium tungsten oxide transformed to potassium tungsten bronze. Because of the lack of free electrons, the potassium tungsten oxide (KxWO 3+x/2) showed no NIR shielding performance; however, the potassium tungsten bronze (KxWO3) showed promising optical characteristics such as high transmittance for visible light, as well as high shielding performance for near-infrared lights, indicating its potential application as a solar filter. Meanwhile, the potassium tungsten bronze (K xWO3) showed strong absorption of near-infrared light and instantaneous conversion of photoenergy to heat.

KW - IR shielding

KW - KWO

KW - near-infrared absorption

KW - tungsten bronze

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Synthesis of one-dimensional potassium tungsten bronze with excellent near-infrared absorption property

Abstract

Keywords

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