Solar energy offers a huge potential for global supply of clean and sustainable energy, reducing our dependence on fossil fuels and decreasing carbon dioxide (CO2) emissions. [1-7] Photoelectrochemical (PEC) solar-driven hydrogen (H2) production, which converts solar energy into H2 using semiconductors as active materials, is considered as a promising route, because H2 is a solar fuel, which combines the advantages of high energy storage densities, ease of transportation, cost-effectiveness,  and generating water as the only byproduct of H 2 use.  PEC cells perform redox reactions driven by electron-hole pairs created by incident photons, namely, the holes oxidize water/hole scavengers at the surface of the photoanode, and the electrons migrate to the counter electrode to reduce water and produce hydrogen.  The ideal PEC cell is composed of inexpensive semiconducting materials with proper electronic band structure, leading to strong sunlight absorption, effective charge separation, and high photochemical stability.
|Data di pubblicazione:||2016|
|Titolo:||Near-infrared colloidal quantum dots for efficient and durable photoelectrochemical solar-driven hydrogen production|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1002/advs.201500345|
|Appare nelle tipologie:||2.1 Articolo su rivista |