Boosting Unassisted Alkaline Solar Water Splitting Using Silicon Photocathode with TiO 2 Nanorods Decorated by Edge‐Rich MoS 2 Nanoplates (Small 39/2021)

Enabling unassisted solar water splitting by iron oxide and silicon

Photoelectrochemical (PEC) water splitting promises a solution to the problem of large-scale solar energy storage. However, its development has been impeded by the poor performance of photoanodes, particularly in their capability for photovoltage generation. Many examples employing photovoltaic modules to correct the deficiency for unassisted solar water splitting have been reported to-date. He...

Nickel Coated Silicon Photocathode for Water Splitting in Alkaline Electrolytes

Bipolar TiO,/Pt Semiconductor Photoelectrodes and Multielectrode Arrays for Unassisted Photolytic Water Splitting

Bipolar Ti02/Pt photoelectrodes were fabricated by anodization of thin Ti foils onto which Pt had been previously sputter-deposited. These photoelectrodes are capable of a vectorial charge transfer. Current-potential curves were used to predict the behavior of multielectrode arrays. Several different multielectrode cells, utilizing KOH, O2 electrolytes, were constructed. In series configuration...

Unassisted photoelectrochemical water splitting exceeding 7% solar-to-hydrogen conversion efficiency using photon recycling

Various tandem cell configurations have been reported for highly efficient and spontaneous hydrogen production from photoelectrochemical solar water splitting. However, there is a contradiction between two main requirements of a front photoelectrode in a tandem cell configuration, namely, high transparency and high photocurrent density. Here we demonstrate a simple yet highly effective method t...

Fabrication and growth mechanism of three-dimensional spherical TiO(2) architectures consisting of TiO(2) nanorods with {110} exposed facets.

In this paper, we report on the fabrication of a novel rutile TiO(2) architecture consisting of nanorods with {110} exposed facets through a simple hydrothermal method without using any templates. An outside-in ripening mechanism is proposed to account for the formation of the TiO(2) architectures.The formation of the TiO(2) architectures can be attributed to the Ostwald step rule and highly ac...