1. Volume 2, Issue 3, Pages 509-520 (March 2018)
A Particulate Photocatalyst Water-Splitting Panel for Large-Scale Solar Hydrogen Generation 
Yosuke Goto, Takashi Hisatomi, Qian Wang, Tomohiro Higashi, Kohki Ishikiriyama, Tatsuya Maeda, Yoshihisa Sakata, Sayuri Okunaka, Hiromasa Tokudome, Masao Katayama, Seiji Akiyama, Hiroshi Nishiyama, Yasunobu Inoue, Takahiko Takewaki, Tohru Setoyama, Tsutomu Minegishi, Tsuyoshi Takata, Taro Yamada, Kazunari Domen 
Joule 
Volume 2, Issue 3, Pages (March 2018)
DOI: /j.joule
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2. Joule 2018 2, DOI: ( /j.joule )
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3. Figure 1
Morphology and Water Splitting Activity of the SrTiO3:Al Photocatalyst
(A) SEM image of SrTiO3:Al.
(B) HR-TEM image of RhCrOx/SrTiO3:Al.
(C) Apparent quantum yield (AQY) of SrTiO3:Al (sample A, see Supplemental Information) plotted as a function of the wavelength of the incident light. Each plot is in the middle of two cutoff wavelengths of band path filters. The error bar of the irradiation wavelength was the full width at half maximum of the band-path filters. The error bar of AQY at 365 ± 10 nm was calculated on the basis of measurement results at various light intensities (see Figure S1 in Supplemental Information). The black solid line represents the diffuse reflectance spectrum of SrTiO3:Al.
(D) Reaction time course of SrTiO3:Al under simulated sunlight (AM 1.5G). Reaction conditions: co-catalyst, RhCrOx (Rh 0.1 wt %, Cr 0.1 wt %); solution, 100 mL of H2O. The reaction was carried out at 288 K and 10 kPa.
Joule 2018 2, DOI: ( /j.joule )
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4. Figure 2 Reaction Time Courses of SrTiO3:Al in Sheet and Powder Form
A 5 × 5 cm sheet and 20 mg of powder were used for the reaction. Reaction conditions: co-catalyst, RhCrOx (Rh 0.1 wt %, Cr 0.1 wt %); solution, 100 mL of H2O; light source, 300 W Xe lamp (λ = 300–500 nm). The reaction was carried out at 288 K and 10 kPa.
Joule 2018 2, DOI: ( /j.joule )
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5. Figure 3 1 × 1 m Water-Splitting Panels Containing SrTiO3:Al Sheets
(A) Schematics of the 1 × 1 m water-splitting panel. Nine photocatalyst sheets each 33 × 33 cm were arrayed in the reactor. A hydrophilized acrylic plate was used as the window. The panel had a 10° tilt. The weight of water in this panel was approximately 4 kg because a surplus depth of 4 mm was adopted in consideration of the distortion of the panel under its own weight.
(B) A photograph of a 1 × 1 m SrTiO3:Al panel.
Joule 2018 2, DOI: ( /j.joule )
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6. Figure 4 Water Splitting by SrTiO3:Al Panels
(A) Reaction time courses for a 5 × 5 cm SrTiO3:Al panel in different water depths (1 and 5 mm). Reaction conditions: co-catalyst, RhCrOx (Rh 0.1 wt %, Cr 0.1 wt %); solution, H2O; light source, 300 W Xe lamp (λ = 300–500 nm). The inset shows a schematic of the RhCrOx/SrTiO3:Al sheet.
(B) The reaction time courses of a 5 × 5 cm SrTiO3:Al panel using a hydrophilized or a hydrophobized quartz window under intense illumination at 1 mm depth. The initial gas evolution rate was adjusted to that corresponding to a 10% STH value (3.7 mL cm−2 hr−1) by elevating the light intensity. A 1,500 W Xe lamp was used as the light source. Gas evolution during the photocatalytic reaction is shown in Movie S1.
(C) A photograph acquired during illumination through a hydrophilized and a hydrophobized window.
Joule 2018 2, DOI: ( /j.joule )
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7. Figure 5
Reaction Time Courses of 5 × 5 cm SrTiO3:Al Panel Loaded with RhCrOx and CoOy
Reaction conditions: co-catalyst, RhCrOx (Rh 0.1 wt %, Cr 0.1 wt %) and CoOy (0.1 wt %); water depth, 1 mm; and light source, (A) 300 W Xe lamp (λ = 300–500 nm) and (B) simulated sunlight (AM 1.5 G).
Joule 2018 2, DOI: ( /j.joule )
Copyright © 2017 Elsevier Inc. Terms and Conditions