Abstract
Improving the CO2 selectivity of ethanol oxidation reaction (EOR) is a crucial research topic right now. Rh could effectively break the CC bond of ethanol, nevertheless, pristine Rh still exhibit negligible EOR activity due to the poisoning effect of C1 intermediates. To solve it, here we fabricate modified Rh interfaces with highly-dispersive Bi(OH)3 species as directed by the Langmuir-Hinshelwood Mechanism, the strong interaction between Rh and Bi(OH)3 could provide the so-called electronic effect and bifunctional effect. Thus it facilitates the CC bond cleavage at Rh sites and the electrooxidation of as-generated C1 intermediates even at low overpotentials. Eventually, the optimal Rh-Bi(OH)3 catalysts show an apparent C1 pathway faraday efficiency of 26.2% at 0.67 V vs. RHE, the EOR mass activity of ca. 3500 mA mg−1 Rhand 10-hour-long durability. This work could provide an insightful and promising route in promoting the CO2 selectivity of EOR with high activity and long stability.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
