Copper oxide nanoparticle made by flame spray pyrolysis for photoelectrochemical water splitting – Part II. Photoelectrochemical study

Chiang, Chia‐Ying; Aroh, Kosi C.; Franson, Nicholas; Satsangi, Vibha R.; Dass, Sahab; Ehrman, Sheryl H.

doi:10.1016/j.ijhydene.2011.09.041

Cited by 134 publications

(105 citation statements)

References 24 publications

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“…The light-to-electrical conversion efficiency of the MoO 2 film is considerably lower than that of TiO 2 [6]; however, it is comparable to these of other transition metal oxides [8,9,11,12].…”

Section: Photoelectrochemical Performance Of Electrode Smentioning

confidence: 84%

“…The literature survey revealed that the photocatalytic and photoelectrochemical behavior of various transition metal oxides such as TiO 2 [3,6], WO 3 [4,7], ZnO [8,9], CuO [10,11], and Fe 2 O 3 [12] had been well studied. The low solar-toenergy conversion efficiency of these oxides is a major restrict for their practical application, and an urgent search of new materials for a better light to chemical conversion efficiencies is still under investigation.…”

Section: Introductionmentioning

confidence: 99%

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Photoelectrochemical properties of MoO2 thin films

Dukštienė

Sinkevičiūtė

2013

J Solid State Electrochem

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Thin MoO 2 films were electrodeposited on a selenium pre-deposited SnO 2 |glass plate. The photoelectrochemical properties of MoO 2 films were investigated in 0.1 M Na 2 SO 4 solution by the ultraviolet-visible spectrophotometry, linear sweep voltammetry, and altering current impedance measurement techniques. It was found that under illumination with the incident light of λ=366 nm, the photo response of the MoO 2 |SnO 2 |glass electrode resulted from the MoO 2 layer, while the SnO 2 layer served as a sink for photogenerated charge carriers. The MoO 2 film exhibited ntype conductivity. A schematic band structure diagram of MoO 2 in 0.1 M Na 2 SO 4 solution was constructed. The flat band potential (E fb ), the donor concentration (N D ), the photogeneration current efficiency depended on MoO 2 film thickness. The [Fe(CN) 6 ] 4−/3− redox PEC cell with MoO 2 | SnO 2 |glass plate as a photoanode was constructed. Power output characteristics such as the open circuit voltage (V OC ), short circuit current (I SC ), the fill factor (FF), and the lightto-electrical conversion efficiency (η) were determined. The maximum light-to-electrical conversion efficiency exhibited by the PEC cell was 0.94 %.

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Section: Photoelectrochemical Performance Of Electrode Smentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical properties of MoO2 thin films

Dukštienė

Sinkevičiūtė

2013

J Solid State Electrochem

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“…As an approximation, we used the latter in agreement with the literature as the VB energy. [24] Furthermore, diffuse reflectance assays were used to determine a band-gap energy (Eg) of around 1.61 eV − Figure S4. [25] With this information in hand, we calculated the energy position of the cond uction band (CB) via ECB = EVB -Eg as -1.06 V vs. NHE.…”

mentioning

confidence: 99%

Combining Electron‐Accepting Phthalocyanines and Nanorod‐like CuO Electrodes for p‐Type Dye‐Sensitized Solar Cells

et al. 2015

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Esta es la versión de autor del artículo publicado en: This is an author produced version of a paper published in: El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription COMMUNICATION Combining novel electron-accepting phthalocyanines and nanorod-like CuO electrodes for p-type dye-sensitized solar cellsOliver Langmar, [a] Carolina R. Ganivet, [b] Annkatrin Lennert, [a] Rubén D. Costa, [a] Gema de la Torre, [b] Tomás Torres, [b] and Dirk M. Guldi [a] Abstract: In the current work, a novel route for the synthesis of two electron-accepting phthalocyanines featuring linkers with different length as sensitizers for p-type dye-sensitized solar cells are reported. Importantly, our devices -based on novel nanorod-like CuO photocathodes -feature efficiencies of 0.191%, which are to date the highest values ever reported for CuO-based DSSCs.

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“…This was clearly demonstrated by a study which showed the dependence of the yield of HER on the index of Cu 2 O crystallographic plane of being the (111) face more active than the (110) [88]. Beside NiO [77,78,89] and Cu 2 O [90], other oxides [91][92][93] were studied as photocathodes for HER, e.g., the mixed oxides p-CaFe 2 O 4 [94] and p-LaFeO 3 with the latter system having presented an interesting value of hydrogen formation rate (11.5 mmol¨h´1) [95]. Metal sulfide photocathodes like CoS [96], CoS 2 [97,98] [99]), nitrides of semi-and non-metallic atoms (GaN [112] and C 3 N 4 [113]), borides of metals (Co 2 B [114]), arsenides of semi-metallic atoms or non-metals (GaPNAs [115], GaAs [116], AlGaAs [116]), tellurides of metals (CdTe QD [73]), and carbides of semi-metallic atoms (4H-SiC [117], 3C-SiC [118]).…”

Section: Photoelectrodes Of P-type For Non Fossil Fuel (H 2 ) Productionmentioning

confidence: 93%

Nanostructured p-Type Semiconductor Electrodes and Photoelectrochemistry of Their Reduction Processes

Bonomo

Dini

2016

Energies

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This review reports the properties of p-type semiconductors with nanostructured features employed as photocathodes in photoelectrochemical cells (PECs). Light absorption is crucial for the activation of the reduction processes occurring at the p-type electrode either in the pristine or in a modified/sensitized state. Beside thermodynamics, the kinetics of the electron transfer (ET) process from photocathode to a redox shuttle in the oxidized form are also crucial since the flow of electrons will take place correctly if the ET rate will overcome that one of recombination and trapping events which impede the charge separation produced by the absorption of light. Depending on the nature of the chromophore, i.e., if the semiconductor itself or the chemisorbed dye-sensitizer, different energy levels will be involved in the cathodic ET process. An analysis of the general properties and requirements of electrodic materials of p-type for being efficient photoelectrocatalysts of reduction processes in dye-sensitized solar cells (DSC) will be given. The working principle of p-type DSCs will be described and extended to other p-type PECs conceived and developed for the conversion of the solar radiation into chemical products of energetic/chemical interest like non fossil fuels or derivatives of carbon dioxide.

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Copper oxide nanoparticle made by flame spray pyrolysis for photoelectrochemical water splitting – Part II. Photoelectrochemical study

Cited by 134 publications

References 24 publications

Photoelectrochemical properties of MoO2 thin films

Photoelectrochemical properties of MoO2 thin films

Combining Electron‐Accepting Phthalocyanines and Nanorod‐like CuO Electrodes for p‐Type Dye‐Sensitized Solar Cells

Nanostructured p-Type Semiconductor Electrodes and Photoelectrochemistry of Their Reduction Processes

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