Size-Dependent Electrocatalytic Reduction of CO 2 over Pd Nanoparticles
Chinese Academy of Sciences · Dalian Institute of Chemical Physics · +2 more institutions
Abstract
Size effect has been regularly utilized to tune the catalytic activity and selectivity of metal nanoparticles (NPs). Yet, there is a lack of understanding of the size effect in the electrocatalytic reduction of CO2, an important reaction that couples with intermittent renewable energy storage and carbon cycle utilization. We report here a prominent size-dependent activity/selectivity in the electrocatalytic reduction of CO2 over differently sized Pd NPs, ranging from 2.4 to 10.3 nm. The Faradaic efficiency for CO production varies from 5.8% at -0.89 V (vs reversible hydrogen electrode) over 10.3 nm NPs to 91.2% over 3.7 nm NPs, along with an 18.4-fold increase in current density. Based on the Gibbs free energy…
Citation impact
- FWCI
- 31.06
- Percentile
- 100%
- References
- 24
Authors
8- DGDunfeng GaoCorresponding
Chinese Academy of Sciences, Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences
- HZHu Zhou
Zhejiang University of Technology
- JWJing Wang
Chinese Academy of Sciences, Zhejiang University of Technology, Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences
- SMShu Miao
Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- FYFan Yang
Chinese Academy of Sciences, Dalian Institute of Chemical Physics
Topics & keywords
- Chemistry
- Nanoparticle
- Catalysis
- Selectivity
- Adsorption
- Faraday efficiency
- Density functional theory
- Gibbs free energy
- Affordable and clean energy