Accelerating CO2 Electroreduction to CO Over Pd Single-Atom Catalyst
- Columbia Univ., New York, NY (United States); Univ. of Science and Technology of China, Hefei (China)
- Columbia Univ., New York, NY (United States)
- Nanyang Technological Univ. (Singapore)
- Department of Chemical EngineeringColumbia University New York NY 10027 USA
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
- Florida A & M University, Tallahassee, FL (United States)
- Univ. of Science and Technology of China, Hefei (China)
- Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
The electrochemical conversion of carbon dioxide (CO2) into value-added chemicals is regarded as one of the promising routes to mitigate CO2 emission. A nitrogen-doped carbon-supported palladium (Pd) single-atom catalyst that can catalyze CO2 into CO with far higher mass activity than its Pd nanoparticle counterpart, for example, 373.0 and 28.5 mA mg–1Pd, respectively, at –0.8 V versus reversible hydrogen electrode, is reported herein. A combination of in situ X-ray characterization and density functional theory (DFT) calculation reveals that the Pd–N4 site is the most likely active center for CO production without the formation of palladium hydride (PdH), which is essential for typical Pd nanoparticle catalysts. Furthermore, the well-dispersed Pd–N4 single-atom site facilitates the stabilization of the adsorbed CO2 intermediate, thereby enhancing electrocatalytic CO2 reduction capability at low overpotentials. This work provides important insights into the structure-activity relationship for single-atom based electrocatalysts.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II) and Center for Functional Nanomaterials (CFN); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Key Research and Development Program of China; China Scholarship Council (CSC)
- Grant/Contract Number:
- SC0012704; FG02-13ER16381; ACI-1548562; AC02-05CH11231
- OSTI ID:
- 1604621
- Alternate ID(s):
- OSTI ID: 1602349
- Report Number(s):
- BNL-213730-2020-JAAM
- Journal Information:
- Advanced Functional Materials, Vol. 30, Issue 17; ISSN 1616-301X
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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