Hydrogen peroxide-photofuel cell using TiO2 photoanode

Fujiwara, Kimiko; Akita, Atsunobu; Kawano, Seina; Fujishima, Musashi; Tada, Hiroaki

doi:10.1016/j.elecom.2017.10.008

Cited by 23 publications

(31 citation statements)

References 14 publications

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“…Further, the IPCE value at λ ex = 400 nm reaches 6% at λ ex = 400 nm, which is as much as 60 times greater than the value of the prototype of H 2 O 2 -PFC using the mp-TiO 2 /FTO photoanode. 14 Finally, the effect of light intensity ( I ) on the cell performance was studied for the one-compartment H 2 O 2 -PFC. Figure 6B shows the maximum power density ( P max ) as a function of I .…”

Section: Resultsmentioning

confidence: 99%

“…Consequently, the balance between them would determine an optimum thickness of the ms-BiVO 4 film.The practical power-generating efficiency of FCs (ε FC ) is expressed by eq 4. 14 where ε theo is the theoretical power-generating efficiency and ε v and ε c are the voltage efficiency and the current efficiency, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The amount of O 2 was determined by gas chromatography (Shimadzu, GC-8A). 14 For comparison, the same experiments were carried out using anatase TiO 2 particles (10 mg, specific surface area = 309 m 2 g –1 , ST-01, Ishihara Sangyo).…”

Section: Experimental Sectionmentioning

confidence: 99%

“…The action spectra of the incident photon-to-current conversion efficiency (IPCE) were measured by the same method as recently reported. 14…”

Section: Experimental Sectionmentioning

confidence: 99%

“…13 We have recently reported a prototype of one-compartment H 2 O 2 -PFC consisting of mesoporous TiO 2 film coated on fluorine-doped tin oxide (mp-TiO 2 /FTO, photoanode), glassy carbon (cathode), and an aqueous electrolyte solution of H 2 O 2 (pH 3). 14 In this cell, H 2 O 2 is oxidized to O 2 on the mp-TiO 2 /FTO photoanode (eq 1), whereas H 2 O 2 is reduced to H 2 O at the cathode (eq 2). where the electrode potentials are values with respect to the standard hydrogen electrode (SHE).…”

Section: Introductionmentioning

confidence: 99%

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Solar-Driven One-Compartment Hydrogen Peroxide-Photofuel Cell Using Bismuth Vanadate Photoanode

2018

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One-compartment H 2 O 2 -photofuel cells using monoclinic scheelite BiVO 4 film deposited on fluorine-doped tin oxide (ms-BiVO 4 /FTO) as the photoanode, Prussian blue film-coated FTO cathode, and deaerated aqueous electrolyte solution of 0.1 M NaClO 4 and 0.1 M H 2 O 2 were constructed. Mesoporous TiO 2 photoanode cells with the same cathode and electrolyte solution were also prepared for comparison. The ms-BiVO 4 /FTO photoanode was prepared by a two-step route consisting of spin coating of a precursor solution on FTO and subsequent heating at 500 °C in the air. The thickness of the ms-BiVO 4 film was controlled in the range from 50 to 500 nm by the number of the spin-coating times. There is an optimum thickness of the ms-BiVO 4 film in the cell performances under illumination of simulated sunlight (AM 1.5, 100 mW cm –2 , 1 sun). Under the optimum conditions, the ms-BiVO 4 /FTO photoanode cell provides a short-circuit current ( J sc ) = 0.81 mA cm –2 and an open-circuit voltage ( V oc ) = 0.61 V, far surpassing the values of J sc = 0.01 mA cm –2 and V oc = 0.31 V for the conventional mesoporous TiO 2 photoanode cell. The striking cell performance is ascribable to the high visible-light activity of ms-BiVO 4 for H 2 O 2 oxidation and its low thermocatalytic activity for the decomposition.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Experimental Sectionmentioning

confidence: 99%

“…The action spectra of the incident photon-to-current conversion efficiency (IPCE) were measured by the same method as recently reported. 14…”

Section: Experimental Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solar-Driven One-Compartment Hydrogen Peroxide-Photofuel Cell Using Bismuth Vanadate Photoanode

2018

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Synergistic Integration of Hydrogen Peroxide Powered Valveless Micropumps and Membraneless Fuel Cells: A Comprehensive Review

Mujtaba,

Kuzin,

Chen

et al. 2024

Adv Materials Technologies

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Catalytic valveless micropumps, and membraneless fuel cells are the class of devices that utilize the decomposition of hydrogen peroxide (H2O2) into water and oxygen. Nonetheless, a significant obstacle that endures within the discipline pertains to the pragmatic open circuit potential (OCP) of hydrogen peroxide FCs (H2O2 FCs), which fails to meet the theoretical OCP. Additionally, bubble formation significantly contributes to this disparity, as it disrupts the electrolyte's uniformity and interferes with reaction dynamics. In addition, issues such as catalyst degradation and poor kinetics can impact the overall cell efficiency. The development of high‐performance H2O2‐FCs necessitates the incorporation of selective electrocatalysts with a high surface area. However, porous micro‐structures of the electrode impedes the transport of fuel and the removal of reaction byproducts, thereby hindering the attainment of technologically significant rates. To address these challenges, including bubble formation, the review highlights the potential of integrating electrokinetic and bubble‐driven micropumps. An alternative approach involves the spatiotemporal separation of fuel and oxidizer through the use of laminar flow‐based fuel cell (LFFC). The present review addresses multifaceted challenges of H2O2‐powered FCs, and proposes integration of electrokinetic and bubble‐driven micropumps, emphasizing the critical role of bubble management in improving H2O2 FC performance.

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Photoelectrochemical Complete Decomposition of Cellulose for Electric Power Generation

et al. 2021

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A photo-assisted fuel cell (photofuel cell; PFC) consisting of a porous TiO 2 photoanode and a Pt cathode in an aqueous electrolyte containing an organic fuel has been developed to generate an electric power by photoelectrochemically decomposing the fuel. Although direct utilization of cellulose as a fuel should be preferable, photocatalytic direct decomposition of cellulose, polymeric macromolecules, has been rarely reported. In the present study, a cellulose thin film deposited onto the TiO 2 photoanode was used as the fuel. It was revealed that the cellulose was decomposed into CO 2 through small carbonyl hydrocarbon intermediates. The complete decomposition of cellulose into CO 2 implies that almost all the Gibbs free energy of cellulose can be converted into an electric power with the assistance of the photon energy. The PFC composed of the cellulose-deposited TiO 2 and Pt-deposited Ni foam exhibited excellent photovoltaic performances (1.1 V of photovoltage and quantum efficiency up to 52 %). The present study should represent a potential means of electric power generation based on renewable energy sources by effectively treating waste biomass.

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Hydrogen peroxide-photofuel cell using TiO2 photoanode

Cited by 23 publications

References 14 publications

Solar-Driven One-Compartment Hydrogen Peroxide-Photofuel Cell Using Bismuth Vanadate Photoanode

Solar-Driven One-Compartment Hydrogen Peroxide-Photofuel Cell Using Bismuth Vanadate Photoanode

Synergistic Integration of Hydrogen Peroxide Powered Valveless Micropumps and Membraneless Fuel Cells: A Comprehensive Review

Photoelectrochemical Complete Decomposition of Cellulose for Electric Power Generation

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