Mechanistic study of the competition between carbon dioxide reduction and hydrogen evolution reaction and selectivity tuning loading single-atom catalysts on graphitic carbon nitride.

In the context of catalytic CO reduction (CORR), the interference of the inherent hydrogen evolution reaction (HER) and the possible selectivity towards CO have posed a significant challenge to the generation of formic acid. To address this hurdle, in this work, we have investigated the impact of different single-atom metal catalysts on tuning selectivity by employing density functional theory (DFT) calculations to scrutinize the reaction pathways. Single-atom catalysts supported on carbon-based systems have proven to be pivotal in altering both the activity and selectivity of the CORR.

Harnessing the Power of Light: The Synergistic Effects of Crystalline Carbon Nitride and TiCT MXene in Photocatalytic Hydrogen Production.

Photocatalytic hydrogen evolution is an environmentally friendly means of energy generation. Although g-CN possesses fascinating features, its inherent shortcomings limit its photocatalytic applications. Therefore, modifying the intrinsic properties of g-CN and introducing cocatalysts are essential to ameliorate the photocatalytic efficiency.

Isotype heterojunction: tuning the heptazine/triazine phase of crystalline nitrogen-rich CN towards multifunctional photocatalytic applications.

Photocatalytic technology has been well studied as a means to achieve sustainable energy generation through water splitting or chemical synthesis. Recently, a low C/N atomic ratio carbon nitride allotrope, CN, has been found to be highly prospective due to its excellent electronic properties and ample N-active sites compared to g-CN. Tangentially, crystalline g-CN has also been a prospective candidate due to its improved electron transport and extended π-conjugated system.