Investigation of the local photothermal effects by fabricating CQDs/Au/TiO2 photoelectrode in PEC water splitting system

The high efficiency of photoanode material is great significant for photoelectrochemical (PEC) water splitting. Herein, CQDs/Au/TiO2 nanorods array composite photoanode was constructed with special attention to local photothermal effects. The...

Mesoporous carbon nitride supported 5,10,15,20-tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(ii) as a selective and durable electrocatalyst for the production of hydrogen peroxide via two-electron oxygen reduction

Stability and efficiency of CoTMPP@MCN along with the general strategy for tuning the active site.

Electron transport properties in dye-sensitized solar cells with {001} facet-dominant TiO2 nanoparticles

Dye-sensitized solar cells (DSSCs) with reactive {001} facet-dominant TiO₂ have attracted a great deal of attention owing to their high solar cell performance, despite the origin and the variation of the results being controversial. Here, we report the characteristic charge transport properties of DSSCs composed of {001} and {101} facet-dominant TiO₂ nanoparticles in order to explain the origin of solar cell performance. Based on transient photocurrent and photovoltage measurements and transient absorption spectroscopy, the energetics of TiO₂ semiconductors and dye sensitizers are utilized to understand the electron diffusion, recombination, and injection kinetics to determine solar cell performance. Novel strategies to improve DSSC performance by utilizing the characteristics of {001} facet-dominant TiO₂ nanoparticles are proposed, which are (1) enhancement of electron injection and (2) reduction of carrier recombination for J_SC and V_OC improvement, despite the drawback of slower electron diffusion in the mesoporous network of {001} facet-dominant TiO₂.

Synthesis of carbon black/carbon nitride intercalation compound composite for efficient hydrogen production

The carbon black/carbon nitride intercalation compound composite photocatalyst was synthesized by molten salt heating for efficient solar hydrogen production.