Bottom-up and top-down methods to improve catalytic reactivity for photocatalytic production of hydrogen peroxide using a Ru-complex and water oxidation catalysts

Isaka, Yusuke; Kato, Satoshi; Hong, Dachao; Suenobu, Tomoyoshi; Yamada, Yusuke; Fukuzumi, Shunichi

doi:10.1039/c5ta02446c

Cited by 69 publications

(79 citation statements)

References 69 publications

(93 reference statements)

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Thus, H 2 O 2 production from water (H 2 O) and dioxygen (O 2 ) using solar energy provides an ideally sustainable solar fuel in combination with power generation with an H 2 O 2 fuel cell. [15][16][17] It is highly desired to improve the catalytic activity for the phtoocatalytic production of H 2 O 2 from H 2 O and O 2 (ΔG° = 210 kJ mol -1 , eqn (1)) using earth-abundant metal catalysts. [15][16][17] 2H2O + O2 2H2O2 ΔG° = 210 kJ mol -1 (1) We report herein photocataltyic production of H 2 O 2 from H 2 O and O 2 using [Ru II (Me 2 phen) 3 ] 2+ (Me 2 phen = 4,7-dimethyl-1,10phenanthroline) as a photocatalyst and structurally-definable and molecularly-ordered metal complexes, i.e., cyano-bridged polynuclear transition metal complexes composed of Fe and Co as water oxidation catalysts (WOCs) in the presence of Sc 3+ in water under visible light irradiation.…”

Section: Hydrogen Peroxide Was Produced Efficiently From Water and DImentioning

confidence: 99%

Photocatalytic production of hydrogen peroxide from water and dioxygen using cyano-bridged polynuclear transition metal complexes as water oxidation catalysts

Isaka

Oyama

Yamada

et al. 2016

Catal. Sci. Technol.

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† Electronic Supplementary Information (ESI) available: Experimental section, X-ray diffraction patterns ( Fig. S1 and S10b), X-ray fluorescence data (Table S1), DLS data ( Fig. S2 and S10c), IR spectra ( Fig. S3 and S10a), time courses of H2O2 production under various conditions (Figs. S4, S7, S8, and S9), time courses of O2 evolution amount (Fig. S5 and S6) and estimation of the amount of evolved O2. See

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Section: Hydrogen Peroxide Was Produced Efficiently From Water and DImentioning

confidence: 99%

Photocatalytic production of hydrogen peroxide from water and dioxygen using cyano-bridged polynuclear transition metal complexes as water oxidation catalysts

Isaka

Oyama

Yamada

et al. 2016

Catal. Sci. Technol.

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“…In both catalysts, the N1s core level spectra could be deconvoluted into three peaks. In the g-C 3 N 4 phase, the peaks at 400.6, 399.2, and 398.5 eV corresponded to N-(C) 3 , =N-, and C 2 NH species, respectively [37,38]. The binding energy of the three peaks had a slight shift (<0.2 eV) between the Au/C 3 N 4 -500(N 2 ) and Au/C 3 N 4 -500(Air), which suggested that the nitrogen species had minimal change in both catalysts.…”

Section: Catalyst Characterizationmentioning

confidence: 99%

“…The light-driven formation of H 2 O 2 has received increased attention in recent decades [3][4][5][6][7][8]. The process involves light capture on the photocatalyst, charge separation under light irradiation, charge transfer to the surface of the photocatalyst, water/alcohol oxidation by photo-generated holes, and the reduction of dioxygen by photo-generated electrons [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Light-Driven Production of Hydrogen Peroxide by Anchoring Au onto C3N4 Catalysts

et al. 2018

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Light-driven production of hydrogen peroxide (H 2 O 2 ) is a green and sustainable way to achieve solar-to-chemical energy conversion. During such a conversion, both the high activity and the stability of catalysts were critical. We prepared an Au-supported C 3 N 4 catalyst-i.e., Au/C 3 N 4 -500(N 2 )-by strongly anchoring Au nanoparticles (~5 nm) onto a C 3 N 4 matrix-which simultaneously enhanced the activity towards the photosynthesis of H 2 O 2 and the stability when it was reused. The yield of H 2 O 2 reached 1320 µmol L −1 on Au/C 3 N 4 -500(N 2 ) after 4 h of light irradiation in an acidic solution (pH 3), which was higher than that (1067 µmol L −1 ) of the control sample Au/C 3 N 4 -500(Air) and 2.3 times higher than that of the pristine C 3 N 4 . Particularly, the catalyst Au/C 3 N 4 -500(N 2 ) retained a much higher stability. The yield of H 2 O 2 had a marginal decrease on the spent catalyst-i.e., 98% yield was kept. In comparison, only 70% yield was obtained from the spent control catalyst. The robust anchoring of Au onto C 3 N 4 improved their interaction, which remarkably decreased the Au leaching when it was used and avoided the aggregation and aging of Au particles. Minimal Au leaching was detected on the spent catalyst. The kinetic analyses indicated that the highest formation rate of H 2 O 2 was achieved on the Au/C 3 N 4 -500(N 2 ) catalyst. The decomposition tests and kinetic behaviors of H 2 O 2 were also carried out. These findings suggested that the formation rate of H 2 O 2 could be a determining factor for efficient production of H 2 O 2 .

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“…[103] Hydrogenp eroxide (H 2 O 2 )i saclean and sustainable energy source,b ecause the decomposition products are only water and oxygen, and H 2 O 2 is produced from water and dioxygen using solar energy. [104][105][106][107][108][109][110][111][112] H 2 O 2 is superior to H 2 or natural gas, owing to its safe storage and convenient transportation in liquid form. [104][105][106][107][108][109][110][111][112] Furthermore, ao ne-compartment configuration is possible for H 2 O 2 fuel cells, which is structurally much simpler and cheaper than two-compartment hydrogen fuel cells with expensive membranes.…”

Section: Hydrogenfrom Black Sea Deep Watermentioning

confidence: 99%

“…[104][105][106][107][108][109][110][111][112] H 2 O 2 is superior to H 2 or natural gas, owing to its safe storage and convenient transportation in liquid form. [104][105][106][107][108][109][110][111][112] Furthermore, ao ne-compartment configuration is possible for H 2 O 2 fuel cells, which is structurally much simpler and cheaper than two-compartment hydrogen fuel cells with expensive membranes. [24][25][26]113] Efficient photocatalytic production of H 2 O 2 from seawater and O 2 in the air was performed in at wo-compartment photoelectrochemical cell, composed of mesoporous WO 3 supported on af luorine doped tin oxide (FTO) glass substrate (m-WO 3 / FTO) as ap hotocatalyst for H 2 Oo xidation and ac obalt chlorin complexs upported on ac arbon paper ([Co II (Ch)]/CP) as an electrocatalyst for the selectivet wo-electron reduction of O 2 , [114,115] as shown in Figure 12.…”

Section: Hydrogenfrom Black Sea Deep Watermentioning

confidence: 99%

Fuel Production from Seawater and Fuel Cells Using Seawater

2017

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Seawater is the most abundant resource on our planet and fuel production from seawater has the notable advantage that it would not compete with growing demands for pure water. This Review focuses on the production of fuels from seawater and their direct use in fuel cells. Electrolysis of seawater under appropriate conditions affords hydrogen and dioxygen with 100 % faradaic efficiency without oxidation of chloride. Photoelectrocatalytic production of hydrogen from seawater provides a promising way to produce hydrogen with low cost and high efficiency. Microbial solar cells (MSCs) that use biofilms produced in seawater can generate electricity from sunlight without additional fuel because the products of photosynthesis can be utilized as electrode reactants, whereas the electrode products can be utilized as photosynthetic reactants. Another important source for hydrogen is hydrogen sulfide, which is abundantly found in Black Sea deep water. Hydrogen produced by electrolysis of Black Sea deep water can also be used in hydrogen fuel cells. Production of a fuel and its direct use in a fuel cell has been made possible for the first time by a combination of photocatalytic production of hydrogen peroxide from seawater and dioxygen in the air and its direct use in one‐compartment hydrogen peroxide fuel cells to obtain electric power.

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Bottom-up and top-down methods to improve catalytic reactivity for photocatalytic production of hydrogen peroxide using a Ru-complex and water oxidation catalysts

Abstract: ARTICLEThis journal is

Cited by 69 publications

References 69 publications

Photocatalytic production of hydrogen peroxide from water and dioxygen using cyano-bridged polynuclear transition metal complexes as water oxidation catalysts

Photocatalytic production of hydrogen peroxide from water and dioxygen using cyano-bridged polynuclear transition metal complexes as water oxidation catalysts

Enhancing Light-Driven Production of Hydrogen Peroxide by Anchoring Au onto C3N4 Catalysts

Fuel Production from Seawater and Fuel Cells Using Seawater

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