Hydrogen Production from Photoelectrochemical Water Splitting

Dias, Paula; Mendes, Adélio

doi:10.1007/978-1-4939-2493-6_957-1

Cited by 14 publications

(14 citation statements)

References 180 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among potential applications of photoelectrochemical reactors, the production of hydrogen dominates the field. [58][59][60][61] Plasma reactors. In 1969, Ibberson and Thring published a review paper on plasma engineering and processing.…”

Section: Applications Challenges and New Concepts Of Electricity-drimentioning

confidence: 99%

Beyond electrolysis: old challenges and new concepts of electricity-driven chemical reactors

Stankiewicz

Nigar

2020

React. Chem. Eng.

View full text Add to dashboard Cite

show abstract

Section: Applications Challenges and New Concepts Of Electricity-drimentioning

confidence: 99%

Beyond electrolysis: old challenges and new concepts of electricity-driven chemical reactors

Stankiewicz

Nigar

2020

React. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…The structure of perovskite catalysts can play an important role in the conversion of CO 2 into value-added chemicals [19][20][21][23][24][25][26]. In particular, emphasis is given to achieve (i) high efficiency by enhancing mass transfer, (ii) the ability for separation of products, (iii) low-pressure drops, (iv) absence of clogging, (v) safety, and (vi) cost-and energy-effective production [36,57,58]. To this extent, the preparation method is important for controlling the properties and final structure of perovskites.…”

Section: Perovskite Structures and Propertiesmentioning

confidence: 99%

“…To this extent, the preparation method is important for controlling the properties and final structure of perovskites. Valuable information about tuning the material properties of perovskites can be extracted from their utilization in various applications including NO x , oxidation of CO, combustion of hydrocarbons, and hydrogen production [58][59][60]. To affirm the application of these materials, their performance metrics have to be evaluated to determine the presence of active components [61][62][63].…”

Section: Perovskite Structures and Propertiesmentioning

confidence: 99%

Perovskites in the Energy Grid and CO2 Conversion: Current Context and Future Directions

et al. 2020

View full text Add to dashboard Cite

CO2 emissions from the consumption of fossil fuels are continuously increasing, thus impacting Earth’s climate. In this context, intensive research efforts are being dedicated to develop materials that can effectively reduce CO2 levels in the atmosphere and convert CO2 into value-added chemicals and fuels, thus contributing to sustainable energy and meeting the increase in energy demand. The development of clean energy by conversion technologies is of high priority to circumvent these challenges. Among the various methods that include photoelectrochemical, high-temperature conversion, electrocatalytic, biocatalytic, and organocatalytic reactions, photocatalytic CO2 reduction has received great attention because of its potential to efficiently reduce the level of CO2 in the atmosphere by converting it into fuels and value-added chemicals. Among the reported CO2 conversion catalysts, perovskite oxides catalyze redox reactions and exhibit high catalytic activity, stability, long charge diffusion lengths, compositional flexibility, and tunable band gap and band edge. This review focuses on recent advances and future prospects in the design and performance of perovskites for CO2 conversion, particularly emphasizing on the structure of the catalysts, defect engineering and interface tuning at the nanoscale, and conversion technologies and rational approaches for enhancing CO2 transformation to value-added chemicals and chemical feedstocks.

show abstract

“…First, if one were to measure the open-circuit voltage across the open switch in Figure , it can be seen that it must be equal to the quantity V OC = E WE – E CE = E F, bulk – E CE . Moreover, assuming that V OC = 0 in the absence of illumination, then V OC > 0 under illumination must be equal to the externally measurable/observable photovoltage of the system as the difference between the working electrode ( E WE ) and counter electrode ( E CE ) electrochemical potentials (viewing the system as one device externally).…”

Section: Theorymentioning

confidence: 99%

Utilizing Band Diagrams To Interpret the Photovoltage and Photocurrent in Photoanodes: A Semiclassical Device Modeling Study

2019

View full text Add to dashboard Cite

The photovoltage and photocurrent both serve as important design metrics when assessing the performance of photoanodes within photoelectrochemical cells. However, to date, wide disagreement persists (even in the recent literature) regarding how the photovoltage should be physically interpreted; this lack of consensus is further coupled to physical interpretations of the photocurrent. In this work, we utilize state-of-the-art device modeling to help clarify the physical origins of both the photovoltage and photocurrent in photoanodes. Our methodology is based on directly solving the governing electron and hole continuity equations, coupled self-consistently with Poisson’s equation, with appropriate boundary conditions. Through a systematic examination of a model photoanode, hematite, we correlate directly measurable current–voltage characteristics with operational band diagrams. It is shown that, by directly mapping specific operating points of either equal current or equal voltage (both illuminated and in the dark) to band diagram plots, one is able to obtain substantial insights into the physical nature of both the photocurrent and photovoltage. Throughout this analysis, the fundamental distinction between electrostatic and electrochemical perturbations under arising illumination is underscored. By aiding the community-wide effort to arrive at a consensus on these concepts, we aim to further enable the design of higher-efficiency photoanodes.

show abstract

Hydrogen Production from Photoelectrochemical Water Splitting

Cited by 14 publications

References 180 publications

Beyond electrolysis: old challenges and new concepts of electricity-driven chemical reactors

Beyond electrolysis: old challenges and new concepts of electricity-driven chemical reactors

Perovskites in the Energy Grid and CO2 Conversion: Current Context and Future Directions

Utilizing Band Diagrams To Interpret the Photovoltage and Photocurrent in Photoanodes: A Semiclassical Device Modeling Study

Contact Info

Product

Resources

About