A Derivative of ZnIn2S4 Nanosheet Supported Pd Boosts Selective CO2 Hydrogenation

Abstract CO 2 hydrogenation to value‐added chemicals has been considered as a promising way to reduce CO 2 emission and alleviate energy crisis. However, the high‐efficiency CO 2 hydrogenation process is driven by the current drawbacks of low activity and/or selectivity. Herein, it is demonstrated that 2D S‐doped ZnInO x , which evolves from the calcination of ZnIn 2 S 4 nanosheets (ZIS NSs), can serve as a functional support for Pd nanoparticles (NPs) to promote the selective CO 2 hydrogenation to CH 3 OH. Detailed investigations show that ZnIn 2 S 4 will evolve into In 2 O 3 and amorphous S‐doped ZnO, on which Pd NPs are preferentially located due to the strong electrophilicity of S. Consequently, the strong interaction between Pd NPs and amorphous S‐doped ZnO prevents Pd NPs from sintering and facilitates the selective CO 2 hydrogenation to produce CH 3 OH. The optimal catalyst shows a CO 2 conversion of 12.7% with a CH 3 OH selectivity of 87.4% at 280 °C. This study provides a facile route to regulate catalytic supports and controllably load active species, which may attract great research interests in the fields of heterogeneous catalysis.