Fully blossomed WO3/BiVO4 structure obtained via active facet engineering of patterned FTO for highly efficient Water splitting

Sucheol Ju; Hae Jun Seok; Junho Jun; Daihong Huh; Soomin Son; Kwan Kim; Wonjoong Kim; Seungho Baek; Han Ki Kim; Heon Lee

doi:10.1016/j.apcatb.2019.118362

Fully blossomed WO₃/BiVO₄ structure obtained via active facet engineering of patterned FTO for highly efficient Water splitting

Sucheol Ju, Hae Jun Seok, Junho Jun, Daihong Huh, Soomin Son, Kwan Kim, Wonjoong Kim, Seungho Baek, Han Ki Kim, Heon Lee

Department of Materials Science and Engineering

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

47 Citations (Scopus)

Abstract

Materials with anisotropic properties have different electronic structures and photoelectrochemical (PEC) performance depending on the facet. Herein, we controlled the morphology of WO₃ nanoflakes, and the ratio of the revealed WO₃ facet using patterned F-doped SnO₂ fabrication by means of direct printing. In the case of WO₃ NF synthesized on patterned FTO (FB-WO₃/BiVO₄), the proportion of the (002) facet decreased and that of the (200) and (020) facets increased in comparison to the case when NF were synthesized on flat FTO (B-WO₃/BiVO₄). As the facet ratio changed, the band structure and efficiency changed. The photocurrent density of FB-WO₃/BiVO₄ was 1.50 mA/cm², which was 34% higher than that of B-WO₃/BiVO₄ (1.12 mA/cm²) at 1.23 V_RHE. Our results indicate that the efficiency of PEC water splitting can be increased by engineering the exposed facet according to the shape of the substrate, rather than varying the synthetic method.

Original language	English
Article number	118362
Journal	Applied Catalysis B: Environmental
Volume	263
DOIs	https://doi.org/10.1016/j.apcatb.2019.118362
Publication status	Published - 2020 Apr

Bibliographical note

Funding Information:
This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT ( NRF-2018M3D1A1058972 ), the Materials and Components Technology Development Program of MOTIE/KEIT ( 10080352 , Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1-m2 area), and the Technology Innovation Program ( 20000887 , Development of self-healing impact resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) . Appendix A

Funding Information:
This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1058972), the Materials and Components Technology Development Program of MOTIE/KEIT (10080352, Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1-m2 area), and the Technology Innovation Program (20000887, Development of self-healing impact resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Direct printing
Facet engineering
PEC water splitting
Patterned FTO

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.apcatb.2019.118362

Cite this

@article{b2f06fcc964c46ab842b13441f2410bb,

title = "Fully blossomed WO3/BiVO4 structure obtained via active facet engineering of patterned FTO for highly efficient Water splitting",

abstract = "Materials with anisotropic properties have different electronic structures and photoelectrochemical (PEC) performance depending on the facet. Herein, we controlled the morphology of WO3 nanoflakes, and the ratio of the revealed WO3 facet using patterned F-doped SnO2 fabrication by means of direct printing. In the case of WO3 NF synthesized on patterned FTO (FB-WO3/BiVO4), the proportion of the (002) facet decreased and that of the (200) and (020) facets increased in comparison to the case when NF were synthesized on flat FTO (B-WO3/BiVO4). As the facet ratio changed, the band structure and efficiency changed. The photocurrent density of FB-WO3/BiVO4 was 1.50 mA/cm2, which was 34% higher than that of B-WO3/BiVO4 (1.12 mA/cm2) at 1.23 VRHE. Our results indicate that the efficiency of PEC water splitting can be increased by engineering the exposed facet according to the shape of the substrate, rather than varying the synthetic method.",

keywords = "Direct printing, Facet engineering, PEC water splitting, Patterned FTO",

author = "Sucheol Ju and Seok, {Hae Jun} and Junho Jun and Daihong Huh and Soomin Son and Kwan Kim and Wonjoong Kim and Seungho Baek and Kim, {Han Ki} and Heon Lee",

note = "Funding Information: This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT ( NRF-2018M3D1A1058972 ), the Materials and Components Technology Development Program of MOTIE/KEIT ( 10080352 , Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1-m2 area), and the Technology Innovation Program ( 20000887 , Development of self-healing impact resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) . Appendix A Funding Information: This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1058972), the Materials and Components Technology Development Program of MOTIE/KEIT (10080352, Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1-m2 area), and the Technology Innovation Program (20000887, Development of self-healing impact resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

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doi = "10.1016/j.apcatb.2019.118362",

language = "English",

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T1 - Fully blossomed WO3/BiVO4 structure obtained via active facet engineering of patterned FTO for highly efficient Water splitting

AU - Ju, Sucheol

AU - Seok, Hae Jun

AU - Jun, Junho

AU - Huh, Daihong

AU - Son, Soomin

AU - Kim, Kwan

AU - Kim, Wonjoong

AU - Baek, Seungho

AU - Kim, Han Ki

AU - Lee, Heon

N1 - Funding Information: This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT ( NRF-2018M3D1A1058972 ), the Materials and Components Technology Development Program of MOTIE/KEIT ( 10080352 , Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1-m2 area), and the Technology Innovation Program ( 20000887 , Development of self-healing impact resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) . Appendix A Funding Information: This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1058972), the Materials and Components Technology Development Program of MOTIE/KEIT (10080352, Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1-m2 area), and the Technology Innovation Program (20000887, Development of self-healing impact resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). Publisher Copyright: © 2019 Elsevier B.V.

PY - 2020/4

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N2 - Materials with anisotropic properties have different electronic structures and photoelectrochemical (PEC) performance depending on the facet. Herein, we controlled the morphology of WO3 nanoflakes, and the ratio of the revealed WO3 facet using patterned F-doped SnO2 fabrication by means of direct printing. In the case of WO3 NF synthesized on patterned FTO (FB-WO3/BiVO4), the proportion of the (002) facet decreased and that of the (200) and (020) facets increased in comparison to the case when NF were synthesized on flat FTO (B-WO3/BiVO4). As the facet ratio changed, the band structure and efficiency changed. The photocurrent density of FB-WO3/BiVO4 was 1.50 mA/cm2, which was 34% higher than that of B-WO3/BiVO4 (1.12 mA/cm2) at 1.23 VRHE. Our results indicate that the efficiency of PEC water splitting can be increased by engineering the exposed facet according to the shape of the substrate, rather than varying the synthetic method.

AB - Materials with anisotropic properties have different electronic structures and photoelectrochemical (PEC) performance depending on the facet. Herein, we controlled the morphology of WO3 nanoflakes, and the ratio of the revealed WO3 facet using patterned F-doped SnO2 fabrication by means of direct printing. In the case of WO3 NF synthesized on patterned FTO (FB-WO3/BiVO4), the proportion of the (002) facet decreased and that of the (200) and (020) facets increased in comparison to the case when NF were synthesized on flat FTO (B-WO3/BiVO4). As the facet ratio changed, the band structure and efficiency changed. The photocurrent density of FB-WO3/BiVO4 was 1.50 mA/cm2, which was 34% higher than that of B-WO3/BiVO4 (1.12 mA/cm2) at 1.23 VRHE. Our results indicate that the efficiency of PEC water splitting can be increased by engineering the exposed facet according to the shape of the substrate, rather than varying the synthetic method.

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