Ultrathin zirconium-porphyrin based nanobelts as photo-coupled electrocatalysis for CH4 oxidation to CO
Haoming Guo, Liang Wu, Siyang Nie, Deren Yang, Xun Wang
Abstract
The development of novel and effective methods for the activation of methane is fascinating, which offers a promising potential for the sustainable development of chemical industry and the mitigation of greenhouse effect. Here we successfully synthesize two-dimensional (2D) Zr/5,10,15,20-tetrakis (4-carboxyphenyl) porphyrin (TCPP) ultrathin nanobelts (UNBs) as a high efficiency catalyst for methane (CH 4 ) oxidation to carbon monoxide (CO). The Co-UNBs show well photo-coupled electrocatalytic performances for CH 4 activation (CO production rates are 0.171 and 8.416 mmol·g −1 ·h −1 under dark/visible light, respectively). Density functional theory (DFT) calculations were performed to illustrate the mechanism of photoelectrocatalytic process and the high efficiency oxidation of CH 4 to CO. Based on the ultrathin structure and highly efficient catalytic properties, this work provides a prospecting avenue for the design and synthesis of methane oxidation catalyst.