AUTHOR=Yan Yang , Chen Changlei , Zou Shihui , Liu Juanjuan , Xiao Liping , Fan Jie 

TITLE=High H2O2 Utilization Promotes Selective Oxidation of Methane to Methanol at Low Temperature

JOURNAL=Frontiers in Chemistry

VOLUME=8

YEAR=2020

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.00252

DOI=10.3389/fchem.2020.00252

ISSN=2296-2646

ABSTRACT=<p>Selective oxidation of methane to methanol has been often considered as a “holy grail” reaction in catalysis. Herein, we systematically investigate the effect of solution pH and Pd-to-Au ratio of AuPd<sub><italic>x</italic></sub> colloid on the catalytic performance of methane oxidation. It is revealed that these two parameters can determine the amount of H<sub>2</sub>O<sub>2</sub> participated in the reaction, which is linearly related to the productivity of oxygenates. A high catalytic performance in methane activation requires a high utilization of H<sub>2</sub>O<sub>2</sub> to generate more ·OH. The optimal pH is 3.0 and the optimal Pd-to-Au ratio is between 0.1 to 0.7.</p>