WO3 mesocrystal-assisted photoelectrochemical activity of BiVO4

Chien Nguyen Van, Thi Hien Do, Jhih Wei Chen, Wen Yen Tzeng, Kai An Tsai, Haili Song, Heng Jui Liu, Yan Cheng Lin, Yi Chun Chen, Chung Lin Wu, Chih Wei Luo, Wu Ching Chou, Rong Huang, Yung Jung Hsu, Ying Hao Chu

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Self-assembled nanocomposites have gained much attention over the past decade due to their intriguing properties and functionalities. In this work, we developed a self-assembled nanocomposite photoanode composed of an epitaxial BiVO4 matrix embedded with WO3 mesocrystals for photoelectrochemical (PEC) applications in the visible-light regime. The orientation of the crystal facet and interface provides a superior template to understand the intimate contact between the two constituent phases. We demonstrate that the interfacial coupling of the mesocrystal and matrix improves the separation of photoexcited carriers and the properties of charge transfer, resulting in a greatly enhanced PEC performance compared with their parent compounds. The current study demonstrates that the utilization of the interface-to-volume ratio to optimize charge interactions in the nanocomposite is essential for the advanced design of novel mesocrystal-embedded nanocomposite photoelectrodes.

Original languageEnglish
Article numbere357
JournalNPG Asia Materials
Volume9
Issue number3
DOIs
Publication statusPublished - 2017 Mar 10

Fingerprint

Nanocomposites
nanocomposites
Charge Transfer
matrices
Facet
Crystal orientation
Demonstrate
Charge transfer
Template
flat surfaces
Crystal
templates
Optimise
charge transfer
Charge
Contact
Crystals
bismuth vanadium tetraoxide
Interaction
crystals

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Van, C. N., Do, T. H., Chen, J. W., Tzeng, W. Y., Tsai, K. A., Song, H., ... Chu, Y. H. (2017). WO3 mesocrystal-assisted photoelectrochemical activity of BiVO4. NPG Asia Materials, 9(3), [e357]. https://doi.org/10.1038/am.2017.15
Van, Chien Nguyen ; Do, Thi Hien ; Chen, Jhih Wei ; Tzeng, Wen Yen ; Tsai, Kai An ; Song, Haili ; Liu, Heng Jui ; Lin, Yan Cheng ; Chen, Yi Chun ; Wu, Chung Lin ; Luo, Chih Wei ; Chou, Wu Ching ; Huang, Rong ; Hsu, Yung Jung ; Chu, Ying Hao. / WO3 mesocrystal-assisted photoelectrochemical activity of BiVO4. In: NPG Asia Materials. 2017 ; Vol. 9, No. 3.
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Van, CN, Do, TH, Chen, JW, Tzeng, WY, Tsai, KA, Song, H, Liu, HJ, Lin, YC, Chen, YC, Wu, CL, Luo, CW, Chou, WC, Huang, R, Hsu, YJ & Chu, YH 2017, 'WO3 mesocrystal-assisted photoelectrochemical activity of BiVO4', NPG Asia Materials, vol. 9, no. 3, e357. https://doi.org/10.1038/am.2017.15

WO3 mesocrystal-assisted photoelectrochemical activity of BiVO4. / Van, Chien Nguyen; Do, Thi Hien; Chen, Jhih Wei; Tzeng, Wen Yen; Tsai, Kai An; Song, Haili; Liu, Heng Jui; Lin, Yan Cheng; Chen, Yi Chun; Wu, Chung Lin; Luo, Chih Wei; Chou, Wu Ching; Huang, Rong; Hsu, Yung Jung; Chu, Ying Hao.

In: NPG Asia Materials, Vol. 9, No. 3, e357, 10.03.2017.

Research output: Contribution to journalArticle

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AU - Van, Chien Nguyen

AU - Do, Thi Hien

AU - Chen, Jhih Wei

AU - Tzeng, Wen Yen

AU - Tsai, Kai An

AU - Song, Haili

AU - Liu, Heng Jui

AU - Lin, Yan Cheng

AU - Chen, Yi Chun

AU - Wu, Chung Lin

AU - Luo, Chih Wei

AU - Chou, Wu Ching

AU - Huang, Rong

AU - Hsu, Yung Jung

AU - Chu, Ying Hao

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Y1 - 2017/3/10

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AB - Self-assembled nanocomposites have gained much attention over the past decade due to their intriguing properties and functionalities. In this work, we developed a self-assembled nanocomposite photoanode composed of an epitaxial BiVO4 matrix embedded with WO3 mesocrystals for photoelectrochemical (PEC) applications in the visible-light regime. The orientation of the crystal facet and interface provides a superior template to understand the intimate contact between the two constituent phases. We demonstrate that the interfacial coupling of the mesocrystal and matrix improves the separation of photoexcited carriers and the properties of charge transfer, resulting in a greatly enhanced PEC performance compared with their parent compounds. The current study demonstrates that the utilization of the interface-to-volume ratio to optimize charge interactions in the nanocomposite is essential for the advanced design of novel mesocrystal-embedded nanocomposite photoelectrodes.

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