System efficiency of a water-splitting system synthesized by photochemical and thermoelectric conversion of solar energy

Ohta, Tokio; Kamiya, Naoki; Yamaguchi, M.; Gotoh, Nobuo; Otagawa, T.; Asakura, Shukuji

doi:10.1016/0360-3199(78)90018-6

Cited by 15 publications

(6 citation statements)

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“…In this work, the TE electricity generator is independent from the electrochemical reactor, performing as a TE electricity generator assisting a photochemical cell for an electrolytic tank. In this system, the efficiency of the TE generator is only 5%, but the total hydrogen production could be increased by 20% [61]. Pornrungroj et al demonstrated that photoelectrochemical reactors can utilize this waste heat by integrating thermoelectric modules, which provide additional voltage under concentrated light irradiation [62].…”

Section: Thermoelectric Catalytic Effectmentioning

confidence: 99%

Harvesting Thermal Energy through Pyroelectric and Thermoelectric Nanomaterials for Catalytic Applications

Li,

Liu,

Zhang

et al. 2024

Catalysts

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The current scenario sees over 60% of primary energy being dissipated as waste heat directly into the environment, contributing significantly to energy loss and global warming. Therefore, low-grade waste heat harvesting has been long considered a critical issue. Pyroelectric (PE) materials utilize temperature oscillation to generate electricity, while thermoelectric (TE) materials convert temperature differences into electrical energy. Nanostructured PE and TE materials have recently gained prominence as promising catalysts for converting thermal energy directly into chemical energy in a green manner. This short review provides a summary and comparison of catalytic processes initiated by PE and TE effects driven by waste thermal energy. The discussion covers fundamental principles and reaction mechanisms, followed by the introduction of representative examples of PE and TE nanomaterials in various catalytic fields, including water splitting, organic synthesis, air purification, and biomedical applications. Finally, the review addresses challenges and outlines future prospects in this emerging field.

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Section: Thermoelectric Catalytic Effectmentioning

confidence: 99%

Harvesting Thermal Energy through Pyroelectric and Thermoelectric Nanomaterials for Catalytic Applications

Li,

Liu,

Zhang

et al. 2024

Catalysts

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“…To overcome the aforementioned limitations, researchers have proposed the hybridization of PEC cells with other devices such as thermoelectric (TE) generators, which generate output voltages through thermal energy conversion. 21,[104][105][106][107][108] In the presence of a temperature difference, the PEC-TE hybrid system can provide an additional output Seebeck voltage to overcome the potential barrier required for the water-splitting reaction. In such a system, the total current is determined by the high photocurrent level of the PEC cells.…”

Section: Pec Cellsmentioning

confidence: 99%

Recent progress on the thermoelectric effect for electrochemistry

Li,

Jiang,

et al. 2024

J. Mater. Chem. A

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“…35, left). The overall efficiency was estimated as 15-25% with an initial production rate of one liter per hour of hydrogen was achieved; 178 further work 179 indicated that while the efficiency of the thermoelectric device is as low as 5%, the overall efficiency of hydrogen production can be raised to 20% by the additional electric power from the thermoelectric. Photo-electro-chemical (PEC) conversion of solar energy for water splitting has also used with thermoelectric devices.…”

Section: Thermoelectric-chemical Effectsmentioning

confidence: 99%

Control of electro-chemical processes using energy harvesting materials and devices

et al. 2017

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Energy harvesting is a topic of intense interest that aims to convert ambient forms of energy such as mechanical motion, light and heat, which are otherwise wasted, into useful energy. In many cases the energy harvester or nanogenerator converts motion, heat or light into electrical energy, which is subsequently rectified and stored within capacitors for applications such as wireless and self-powered sensors or low-power electronics. This review covers the new and emerging area that aims to directly couple energy harvesting materials and devices with electro-chemical systems. The harvesting approaches to be covered include pyroelectric, piezoelectric, triboelectric, flexoelectric, thermoelectric and photovoltaic effects. These are used to influence a variety of electro-chemical systems such as applications related to water splitting, catalysis, corrosion protection, degradation of pollutants, disinfection of bacteria and material synthesis. Comparisons are made between the range harvesting approaches and the modes of operation are described. Future directions for the development of electro-chemical harvesting systems are highlighted and the potential for new applications and hybrid approaches are discussed.

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System efficiency of a water-splitting system synthesized by photochemical and thermoelectric conversion of solar energy

Cited by 15 publications

References 0 publications

Harvesting Thermal Energy through Pyroelectric and Thermoelectric Nanomaterials for Catalytic Applications

Harvesting Thermal Energy through Pyroelectric and Thermoelectric Nanomaterials for Catalytic Applications

Recent progress on the thermoelectric effect for electrochemistry

Control of electro-chemical processes using energy harvesting materials and devices

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