Ag-ZnO Nanoflowers Enable Highly Selective Photocatalytic Conversion of CH to CHOH at Atmospheric Pressure: Unraveling Reactive Interfaces and Intermediate Control.

At atmospheric pressure, the main challenge in the photocatalytic oxidation of CH to CHOH is to absorb and activate the inert C─H bond while preventing excessive oxidation of CHOH. In this study, metal-supported ZnO nanoflowers (Ag-ZnO) are designed to produce abundant active interfacial oxygen sites for CH oxidation at atmospheric pressure, with a CHOH yield reaching 1300 µmol g  h and the selectivity is 94%. DFT calculation and in situ analysis show that the addition of Ag regulates the electron state density and band center of O, which is beneficial to the adsorption of CH, and decreases the dissociation energy barrier of C─H bond at O(Lattice oxygen) site.

Bismuth oxide nanoflakes grown on defective microporous carbon endows high-efficient CO reduction at ampere level.

Carbon dioxide electroreduction is a green technology for artificial carbon sequestration, which is being delayed from industrialization due to the lack of efficient catalysts at high current conditions. Herein, the BiO nanoflakes were uniformly grown on a defective porous carbon (PC). This self-assembling BiO/PC catalyst was applied to drive CO electroreduction at 1.

Sulfone-Decorated Conjugated Organic Polymers Activate Oxygen for Photocatalytic Methane Conversion.

Oxidizing CH into liquid products with O under mild conditions still mainly relies on metal catalysis. We prepared a series of sulfone-modified conjugated organic polymers and found that the catalyst with proper S content (0.10) could drive O →H O →⋅OH to oxidize CH into CH OH and HCOOH directly and efficiently at room temperature under light irradiation.