CO<sub>2</sub> Photoreduction Activity Enhancement and Unexpected Observation of Carbon Monoxide Adsorbates on the Surface of TiO<sub>2</sub> Nanotube Arrays Synthesized in Formamide Electrolytes

Kumar, Navneet; Alam, Kazi M.; Vrushabendrakumar, Damini; Shetty, Atharva; Garcia, John; Chaulagain, Narendra; Shankar, Karthik

doi:10.1021/acsami.3c12368

ACS Appl. Mater. Interfaces

2023

DOI: 10.1021/acsami.3c12368

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CO₂ Photoreduction Activity Enhancement and Unexpected Observation of Carbon Monoxide Adsorbates on the Surface of TiO₂ Nanotube Arrays Synthesized in Formamide Electrolytes

Navneet Kumar,

Kazi M. Alam,

Damini Vrushabendrakumar

et al.

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2024

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Improving the Photoelectrochemical Response of Pure TiO₂ Nanotube Array by Changing Anodization Voltage in Preparation Process

Chen,

Xu,

Xia

et al. 2024

CCS

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Introduction:: Enhancing the photoelectrochemical response of TiO2 nanotube arrays (TNA) is crucial to increasing the utilization efficiency of solar energy. In this work, TNA was prepared electrochemically by anodization at single voltages of 20 V, 30 V and 40 V as well as a special two-step voltage of 30 V-20 V, 30 V-40 V, respectively. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the morphology and crystalline structure of the sample. Method:: The photoelectrochemical response was measured by electrochemical potentiostatic technique. The results show TNA evenly aligns with increasing the anodization voltage Results:: However, there is no TiO2 to form TNA and scatter on the TNA surface at a higher voltage, which adversely affects TNA’s photoelectrochemical properties Conclusion:: During the process of anodization, the oxidation current changes due to the switch in voltage. A two-step voltage method enhances pure TNA's photoelectrochemical response to visible light.

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Improving the Photoelectrochemical Response of Pure TiO₂ Nanotube Array by Changing Anodization Voltage in Preparation Process

Chen,

Xu,

Xia

et al. 2024

CCS

View full text Add to dashboard Cite

show abstract

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CO₂ Photoreduction Activity Enhancement and Unexpected Observation of Carbon Monoxide Adsorbates on the Surface of TiO₂ Nanotube Arrays Synthesized in Formamide Electrolytes

Cited by 1 publication

References 80 publications

Improving the Photoelectrochemical Response of Pure TiO₂ Nanotube Array by Changing Anodization Voltage in Preparation Process

Improving the Photoelectrochemical Response of Pure TiO₂ Nanotube Array by Changing Anodization Voltage in Preparation Process

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CO2 Photoreduction Activity Enhancement and Unexpected Observation of Carbon Monoxide Adsorbates on the Surface of TiO2 Nanotube Arrays Synthesized in Formamide Electrolytes

Cited by 1 publication

References 80 publications

Improving the Photoelectrochemical Response of Pure TiO2 Nanotube Array by Changing Anodization Voltage in Preparation Process

Improving the Photoelectrochemical Response of Pure TiO2 Nanotube Array by Changing Anodization Voltage in Preparation Process

Contact Info

Product

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CO₂ Photoreduction Activity Enhancement and Unexpected Observation of Carbon Monoxide Adsorbates on the Surface of TiO₂ Nanotube Arrays Synthesized in Formamide Electrolytes

Improving the Photoelectrochemical Response of Pure TiO₂ Nanotube Array by Changing Anodization Voltage in Preparation Process

Improving the Photoelectrochemical Response of Pure TiO₂ Nanotube Array by Changing Anodization Voltage in Preparation Process