Solar energy is widely used for fuel production and energy storage, but the majority of photoelectrochemical cells cannot operate without an external power source. A device for simultaneous and direct production of renewable fuels and electrical power is now proposed.
One solar-driven electrochromic photoelectrochemical fuel cell (PFC) with highly efficient energy conversion and storage is easily constructed to achieve quantitative self-powered sensing. Layered bismuth oxyiodide–zinc oxide nanorod arrays (ZnO@BiOI NRA) with a core/shell p–n heterostructure are fabricated
Here we report a photo-thermo-electrochemical cell (PTEC) that utilizes two high-temperature solid oxide-based cells working at different high temperatures for flexible electricity generation and hydrogen production for energy storage.
In Section 3, several architectures of solar-based devices for (photo)electrochemical hydrogen generation and reversible storage were critically discussed from the perspective of the operating principles, (photo)electrochemical performance of integrated components, and the overall efficiency of hydrogen generation, storage, and release.
Fuel cells are electrochemical devices that convert chemical energy into electrical energy through a controlled redox reaction. They are distinct from batteries in that they require a continuous supply of fuel and oxidant (usually oxygen) to operate, while batteries store their energy internally.
The calculated energy densities of the dimer and trimer systems of up to 927 kJ kg −1 (257 Wh kg −1) and measured densities up to 559 kJ kg −1 (155 Wh kg −1) greatly exceed the original targets of 300 kJ kg -1 15 highlighting the potential of applying molecular photoswitches in future solar thermal energy storage technologies.