Boosting electrocatalytic oxidation of formic acid on SnO2-decorated Pd nanosheets
journal contributionposted on 2021-05-05, 10:34 authored by Ya-Wei Zhou, Yafeng Chen, Xianxian Qin, Kun Jiang, Wen-Feng LinWen-Feng Lin, Wen-Bin Cai
Formic acid (HCOOH), as a natural biomass, is a promising feedstock for low temperature fuel cells, and rational development of efficient catalysts for electrochemical dehydrogenation of HCOOH plays a key role toward its full chemical energy utilization. Herein, Pd nanosheets decorated with SnO2 nanoflakes (denoted hereafter as Pd@SnO2-NSs) are designed as a composite catalyst, showing superior performance for formic acid electro-oxidation, as compared to pristine Pd nanosheets (Pd-NSs). In situ attenuated total reflection infrared (ATR-IR) spectroscopic results suggest a promoted formate pathway on the Pd@SnO2-NSs with a suppressed accumulation of CO poisoning species. DFT calculations further indicate that the Pd (111) surface modified with SnO2 has lower energy barriers for the bidentate formate formation, the bidentate to monodentate formate transformation and the C-H bond scission.
National Natural Science Foundation of China (NSFC, Nos. 21733004 and 22002088)
International Cooperation Program of STCSM (No. 17520711200)
Shanghai Sailing Program (No. 20YF1420500)
Low Cost High Performance Novel Catalysts for Direct Alcohol Alkaline Fuel Cells using anion exchange membrane and bio-fuels
Engineering and Physical Sciences Research CouncilFind out more...
Newton Fund (NAF¥R1¥191294)
- Aeronautical, Automotive, Chemical and Materials Engineering
- Chemical Engineering