Photoelectrochemical Hydrogen Peroxide Production from Water on a WO3/BiVO4 Photoanode and from O2 on an Au Cathode Without External Bias

Fuku, Kojiro; Miyase, Yuta; Miseki, Yugo; Funaki, Takashi; Gunji, Takahiro; Sayama, Kazuhiro

doi:10.1002/asia.201700292

Cited by 142 publications

(144 citation statements)

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“…. Since then, wide attention have received photocatalysts based on ZnO and other inorganic semiconductors either in pristine form (TiO 2 ,,, Sb 2 O 3, WO 3 , CdS, CdTe) or as heterojunctions (WO 3 /CeO 2 , PdO x /WO 3 , N‐ and S‐doped TiO 2 , Au/BiVO 4 , Au‐supported WO 3 /BiVO 4 , and Au/TiO 2 ,). Close to these systems are photocatalysts based on carbon materials, like graphitic carbon nitrides (g‐C 3 N 4 ),, CdS/graphene oxide or Cd 3 (C 3 N 3 S 3 ) 2 coordination polymer/graphene oxide rGO .…”

Section: Methodsmentioning

confidence: 99%

“…An interesting approach of photoelectrocatalytic production of H 2 O 2 has been recently reported for epindolidione and quinacridone derivatives, where production of H 2 O 2 from water on applied voltage and under irradiation is accompanied by photocurrent generation, which can be also used to perform useful work. Photoelectrocatalytic formation of H 2 O 2 can be also performed by systems based on inorganic semiconductors like Au‐supported WO 3 /BiVO 4 and molecular semiconductors like perylene derivatives or various porphyrins and their analogues ,…”

Section: Methodsmentioning

confidence: 99%

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Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

et al. 2018

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Electroactive and conductive polymers based on transition metal complexes with salen‐type ligands are of interest as potential materials for energy storage and solar energy conversion. The easily tunable structure of monomers allows to modify polymer properties by changing either the central metal atom or the ligand substituents. Herein we report the photoelectrocatalytic activity of [MII(L)]n complexes, where M is Ni, Cu or Pd, and L is a tetradentate N,N,O,O salen‐type ligand, in the reduction of molecular oxygen to hydrogen peroxide in water solutions on polymer‐coated ITO electrodes. The photocathodic current at 0 V vs. Ag/AgCl is pH‐dependent, reaching maximum at pH 1 and dropping almost to zero at pH 12. Hydrogen peroxide production is almost quantitative (97 % efficiency measured in 1‐compartment cell). Maximal photocurrent and H2O2 concentrations achieved comprise 23 μA/cm2 and 1.3×10−3 M respectively.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

et al. 2018

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“…[17] Many other catalysts, such as Au, [9] PdAu alloy, [18] cobalt porphyrin, [8,19] carbonbased materials, [20] and even commercial carbon [21] have also exhibited reasonable selectivity toward H 2 O 2 generation. Pt-Hg and Pd-Hg are the best catalytic materials for twoelectron ORR toward H 2 O 2 with high activity and selectivity.…”

Section: Selection Of Materials For Photoanode and Cathodementioning

confidence: 99%

“…Thus, a PEC system can operate under mod erate bias or even without bias to pro duce electricity. [8,9] However, the twoside generation has its specialty and needs to be considered on the compatibility between electrode materials, electrolytes, and any cross talk between two sides, to promote the H 2 O 2 generation efficiency to a maximum. This PFC system also produces electricity.…”

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confidence: 99%

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Light‐Driven BiVO₄–C Fuel Cell with Simultaneous Production of H₂O₂

Shi

Zhang

Siahrostami

et al. 2018

Advanced Energy Materials

127

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charge carriers to react with electrolytes, a definition that implies much broader applications than just water splitting. For example, photogenerated holes can be used to degrade hazardous organics for waste water treatment, [3] and photo generated electrons can be used for other thermodynamically favorable reactions beyond hydrogen evolution, such as O 2 reduction reaction. Thus, a PEC system can operate under mod erate bias or even without bias to pro duce electricity. [4,5] Such an unassisted PEC system was first referred as photo catalytic fuel cells (PFCs) in 2006, [6] for which the photoanode oxidizes NH 3 to N 2 or decomposes various biomass, and cathode reduces O 2 to H 2 O. This PFC system also produces electricity. To date, all the PFCrelated works have been focusing on organics degradation on photoanodes. [3,4,7] It will be valuable to create a new type of unassisted PEC system that simultaneously produces valuable chemicals like PEC water splitting cells and electricity as PFC cells.In this work, we report such an unassisted PEC system that uses light, water, and oxygen to simultaneously produce electricity and hydrogen peroxide (H 2 O 2 ) on both photoanode (BiVO 4 ) and cathode (carbon), i.e., light + 2H 2 O + O 2 = electricity + 2H 2 O 2 . There have been several reports on unassisted H 2 O 2 generation from one side or two sides. [8,9] However, the twoside generation has its specialty and needs to be considered on the compatibility between electrode materials, electrolytes, and any cross talk between two sides, to promote the H 2 O 2 generation efficiency to a maximum. So far, no such work has been done regarding the twoside H 2 O 2 generation as an individual case with the key factors' studies for the systematical level optimization rather than simple combination of two singleside generations. As a result, for this work, the optimized unassisted PEC system produces H 2 O 2 at a rate of 0.48 µmol min −1 cm −2 and a maximum output power density of 0.194 mW cm −2 (0.61 V opencircuit potential and 1.09 mA cm −2 shortcircuit current density). In essence, this unassisted PEC system is a lightdriven fuel cell with H 2 O 2 as the main product on both electrodes. The electricity output can be also used for a signal of cell function, when it is accompa nied by a detector such as a lightemitting diode (LED) light or a multimeter, as shown in the end of this work.In the following sections, we will first discuss the design of this lightdriven fuel cell, followed by the optimization Photoelectrochemical (PEC) systems have been researched for decades due to their great promise to convert sunlight to fuels. The majority of the research on PEC has been using light to split water to hydrogen and oxygen, and its performance is limited by the need of additional bias. Another research direction on PEC using light, is to decompose organic materials while producing electricity. In this work, the authors report a new type of unassisted PEC system that uses light, water and oxygen to simultaneously produce electricity...

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Solar‐Driven Co‐Production of Hydrogen and Value‐Add Conductive Polyaniline Polymer

Chen

Zheng

Ballestas‐Barrientos

et al. 2022

Adv Funct Materials

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To reduce the reliance on fossil fuel, H 2 , as a clean fuel, has attracted substantial research and development activities in recent years. The traditional water splitting approach requires an applied bias of more than 1.5 V and the use of ion-selective membranes to prevent the formation of a potentially explosive H 2 -O 2 gas mixture, resulting in increased cost and system design complexity. Here, a solar-driven H 2 production process requiring a much lower applied bias of 1.05 V is reported whereby aniline (ANI) is oxidized to polyaniline (PANI) at the anode with a yield of 96% and H 2 evolution reaction occurs at the cathode with a faradaic efficiency of 98.6 ± 3.9%. The process has multiple advantages including the elimination of ion-exchange membrane as PANI is a solid product that also is of substantially higher value than O 2 . For demonstration, a single junction perovskite solar cell and low-cost earth abundant CoP catalyst are successfully applied for this process. This process contributes to the advancement of solar-driven low-cost H 2 generation coupled with co-production of a highvalue product expediting the transition to a hydrogen economy.

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Photoelectrochemical Hydrogen Peroxide Production from Water on a WO₃/BiVO₄ Photoanode and from O₂ on an Au Cathode Without External Bias

Cited by 142 publications

References 69 publications

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

Light‐Driven BiVO₄–C Fuel Cell with Simultaneous Production of H₂O₂

Solar‐Driven Co‐Production of Hydrogen and Value‐Add Conductive Polyaniline Polymer

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Photoelectrochemical Hydrogen Peroxide Production from Water on a WO3/BiVO4 Photoanode and from O2 on an Au Cathode Without External Bias

Cited by 142 publications

References 69 publications

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

Light‐Driven BiVO4–C Fuel Cell with Simultaneous Production of H2O2

Solar‐Driven Co‐Production of Hydrogen and Value‐Add Conductive Polyaniline Polymer

Contact Info

Product

Resources

About

Photoelectrochemical Hydrogen Peroxide Production from Water on a WO₃/BiVO₄ Photoanode and from O₂ on an Au Cathode Without External Bias

Light‐Driven BiVO₄–C Fuel Cell with Simultaneous Production of H₂O₂