Effect of water and annealing temperature of anodized TiO2 nanotubes on hydrogen production in photoelectrochemical cell

Li, Yongkun; Yu, Hongmei; Zhang, Shun; Song, Wei; Li, Guangfu; Shao, Zhigang; Yi, Baolian

doi:10.1016/j.electacta.2013.05.090

Cited by 60 publications

(32 citation statements)

References 22 publications

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“…As a result, the active surface area of TiO 2 NT decreases. The same result has been reported by Li et al [10]. …”

Section: Effect Of Anodizing Timesupporting

confidence: 81%

“…At the heating temperature of 400°C the peak for anatase and rutile phase is not too intense. It indicates that the phase is still dominated by amorphous [10]. The intensity of the phase increases at heating temperature of 500°C.…”

Section: Effect Of Calcination Temperaturementioning

confidence: 80%

“…It is obvious that TiO 2 NT calcined at 500°C provides the highest photocurrent density, because a lot of electrons can be transported during the UV light exposure. According to Li et al [10], it can be resulted from the excellent crystalline and the well order nanotubular structure that very useful as a charge transfer place. Fig.…”

Section: Effect Of Calcination Temperaturementioning

confidence: 99%

“…TiO 2 NT have been prepared by various method such as hydrothermal treatment [5][6], template deposition [7][8] and electrochemical anodizing method [9][10][11]. Anodization with electrochemical method using titanium foil in fluoride that containing electrolyte has been chosen as the favorable method because the surface of TiO 2 NT films have formed a strong bond with the titanium subtrate.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Anodizing Time and Annealing Temperature on Photoelectrochemical Properties of Anodized TiO<sub>2</sub> Nanotube for Corrosion Prevention Application

et al. 2017

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“…As a result, the active surface area of TiO 2 NT decreases. The same result has been reported by Li et al [10]. …”

Section: Effect Of Anodizing Timesupporting

confidence: 81%

Section: Effect Of Calcination Temperaturementioning

confidence: 80%

Section: Effect Of Calcination Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Anodizing Time and Annealing Temperature on Photoelectrochemical Properties of Anodized TiO<sub>2</sub> Nanotube for Corrosion Prevention Application

et al. 2017

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“…2a the inner diameter of pure TiO 2 nanotubes is 90-100 nm and the outer diameter is 110 nm. [17,39,40]. Figure 3c shows that TCo 15 electrode displays the characteristic peaks belonging to TiO 2 and no sign of diffraction peaks of cobalt oxide can be detected within the detection limits of XRD technique.…”

Section: Resultsmentioning

confidence: 90%

Facile one-step process for synthesis of vertically aligned cobalt oxide doped TiO2 nanotube arrays for solar energy conversion

Ali

Ismail

Mekewi

et al. 2015

J Solid State Electrochem

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Vertically aligned cobalt oxide doped TiO 2 nanotube arrays (Co.-oxide TNTAs) were synthesized via one potanodic oxidation of pure titanium substrate in the presence of ammonium fluoride and cobalt salt. After subsequent annealing in air the produced arrays were in the tubular structure and doped with Co.-oxide. The designed TNTAs and Co.-oxide TNTAs were tested as photoanode electrodes in a photoelectrochemical cell. Energy dispersive X-ray (EDX) spectroscopy confirms the incorporation of Co. in the doped TNTAs. The Tauc plots estimated from UV-Vis diffuse reflectance spectra displayed that the insertion of the optimum amount of Co.-oxide leads to a decrease in the band gap of TiO 2 from 3.2 to 2.9 eV. The influences of various cobalt salt concentrations in the electrolyte solution (5, 10, 15, 20 and 25 mM) on the morphology were studied. The evaluation of the photocurrent and photoconversion efficiency was performed for all the fabricated electrodes. Morphological studies illustrated that the addition of cobalt salt with small concentration has no an obvious effect on the ordered tubular structure of TNTAs, whereas, at higher concentrations the tubular structure was partially collapsed. Co.-oxide enhanced the photoconversion efficiency of TNTA electrode by 30 % at optimum concentration under 110 mW/cm 2 solar simulator illumination.

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Rational Design of Photoelectrodes with Rapid Charge Transport for Photoelectrochemical Applications

Sheng

Feng

2019

Advanced Materials

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Photoelectrode materials are the heart of photoelectrochemical (PEC) cells, which hold great promise to address global energy and environmental issues by converting solar energy into electricity or chemical fuels. In recent decades, significant research efforts have been devoted to the design and construction of photoelectrodes for the efficient generation and utilization of charge carriers to boost PEC performance. This review presents insights from a literature study on the relationship between the architecture and charge dynamics of photoelectrodes. After briefly introducing the fundamental theories of charge dynamics in nanostructured photoelectrodes, the development of photoelectrode design in one-dimensional (1D) polycrystalline nanotube arrays, 1D single-crystalline nanowire arrays, and 3D hierarchical and mesoporous nanowire arrays is reviewed with a focus on the interplay between architecture and charge transport properties. For each design, commonly used synthetic approaches and the corresponding charge transport properties are summarized, with insights into the relationship between the photoelectrode structure and charge transport properties. Subsequently, the applications of these photoelectrodes in PEC systems is summarized. Finally, this review concludes with future challenges in the rational design of This article is protected by copyright. All rights reserved.3 photoelectrode architecture. The basic relationships between the architectures and charge dynamics of photoelectrode materials summarized in this review are expected to provide pertinent guidance and a reference for future advanced material design targeting improved light energy conversion systems.

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Effect of water and annealing temperature of anodized TiO2 nanotubes on hydrogen production in photoelectrochemical cell

Cited by 60 publications

References 22 publications

Effect of Anodizing Time and Annealing Temperature on Photoelectrochemical Properties of Anodized TiO<sub>2</sub> Nanotube for Corrosion Prevention Application

Effect of Anodizing Time and Annealing Temperature on Photoelectrochemical Properties of Anodized TiO<sub>2</sub> Nanotube for Corrosion Prevention Application

Facile one-step process for synthesis of vertically aligned cobalt oxide doped TiO2 nanotube arrays for solar energy conversion

Rational Design of Photoelectrodes with Rapid Charge Transport for Photoelectrochemical Applications

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