The effective role of ascorbic acid in the photoelectrocatalytic reduction of CO2 preconcentrated on TiO2 nanotubes modified by ZIF-8

“…Further investigation of PEC CO 2 reduction toward C 2 H 5 OH was carried out by using an electron donor sacrificial agent ascorbic acid with a Ti/TiO 2 -NT/ZIF-8 photocathode. 133 It resulted in ∼22% enhancement in the yield of C 2 H 5 OH. ZIF-8 has nitrogenated sites that facilitate the interaction of CO 2 molecules with ZIF-8.…”

Section: H 5 Ohmentioning

confidence: 99%

Emerging Single-Atom Catalysts and Nanomaterials for Photoelectrochemical Reduction of Carbon Dioxide to Value-Added Products: A Review of the Current State-of-the-Art and Future Perspectives

Verma

Yadav

2023

Energy Fuels

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Rapid industrialization has resulted in a drastic increase in the consumption of natural resources, particularly fossil fuels. Fossil fuels in the form of coal, natural gas, oils, etc. have been extensively used to meet ever-increasing energy demands, resulting in adverse environmental effects. Massive fossil fuel consumption has led to enormous carbon dioxide (CO2) emissions, adversely impacting the environment through global warming. Photoelectrochemical (PEC) reduction of CO2 into valuable fuels, for instance, formic acid (HCOOH), methanol (CH3OH), ethanol (C2H5OH), etc., which combines the merits of both photochemical and electrochemical techniques, has been considered as a potential approach to address the issue of CO2 mitigation. Single-atom catalysts (SACs) along with emerging nanomaterials (NMTs) as photoelectrode composite materials present an effective avenue to augment PEC CO2 reduction owing to their well-defined structures and almost complete atom utilization. The present review focuses on the application of various SACs and NMTs as emerging photoelectrode materials that are advantageous for efficient PEC CO2 reduction to valuable fuels, such as HCOOH, CH3OH, C2H5OH, and carbon monoxide. The mechanism pertaining to the effective utilization of incident light energy to overcome the band gap and produce photogenerated charge carriers that contribute to the PEC reduction of CO2 has also been elucidated. At the outset, some challenges and opportunities that lie ahead in boosting SAC’s PEC performance have been discussed.

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“…It could reduce CO 2 into CH 3 CH 2 OH and CH 3 OH under UV-vis irradiation at a potential of +0.1 V. Then, they used ascorbic acid as a sacrificial agent to study its effect on the PEC performance of Ti/TiO 2 NT–ZIF-8. 241 The addition of ascorbic acid effectively consumed the holes on the electrode surface, which was beneficial for the separation of electrons and holes. The conversion rates of CO 2 to CH 3 OH and CH 3 CH 2 OH were increased by 22% and 12%, respectively.…”

Section: Application Of 1d Nanostructured Catalysts In Photoelectroca...mentioning

confidence: 99%

Progress and perspectives on 1D nanostructured catalysts applied in photo(electro)catalytic reduction of CO₂

Pan

2022

Nanoscale

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The effective role of ascorbic acid in the photoelectrocatalytic reduction of CO2 preconcentrated on TiO2 nanotubes modified by ZIF-8

Cited by 26 publications

References 38 publications

Chlorophyll derivatives/MXene hybrids for photocatalytic hydrogen evolution: Dependence of performance on the central coordinating metals

Chlorophyll derivatives/MXene hybrids for photocatalytic hydrogen evolution: Dependence of performance on the central coordinating metals

Emerging Single-Atom Catalysts and Nanomaterials for Photoelectrochemical Reduction of Carbon Dioxide to Value-Added Products: A Review of the Current State-of-the-Art and Future Perspectives

Progress and perspectives on 1D nanostructured catalysts applied in photo(electro)catalytic reduction of CO₂

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The effective role of ascorbic acid in the photoelectrocatalytic reduction of CO2 preconcentrated on TiO2 nanotubes modified by ZIF-8

Cited by 26 publications

References 38 publications

Chlorophyll derivatives/MXene hybrids for photocatalytic hydrogen evolution: Dependence of performance on the central coordinating metals

Chlorophyll derivatives/MXene hybrids for photocatalytic hydrogen evolution: Dependence of performance on the central coordinating metals

Emerging Single-Atom Catalysts and Nanomaterials for Photoelectrochemical Reduction of Carbon Dioxide to Value-Added Products: A Review of the Current State-of-the-Art and Future Perspectives

Progress and perspectives on 1D nanostructured catalysts applied in photo(electro)catalytic reduction of CO2

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Product

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Progress and perspectives on 1D nanostructured catalysts applied in photo(electro)catalytic reduction of CO₂