Achieving complete electrooxidation of ethanol by single atomic Rh decoration of Pt nanocubes
[1];
[3];
[6];
[4];
[7];
[9]
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, Department of Chemical Engineering, Columbia University, New York, NY 10027
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
- Department of Chemical Engineering, Columbia University, New York, NY 10027, School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
- Department of Physics, Florida A&,M University, Tallahassee, FL 32307
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973
- Department of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, Program of Chemical Engineering, University of California San Diego, La Jolla, CA 92093
- Department of Chemical Engineering, Columbia University, New York, NY 10027, Chemistry Division, Brookhaven National Laboratory, Upton, NY 11973
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea, Department of Hydrogen and Renewable Energy, Kyungpook National University, Daegu 41566, Republic of Korea
Significance Direct ethanol fuel cells are attracting growing attention as portable power sources due to their advantages such as higher mass-energy density than hydrogen and less toxicity than methanol. However, it is challenging to achieve the complete electrooxidation to generate 12 electrons per ethanol, resulting in a low fuel utilization efficiency. This manuscript reports the complete ethanol electrooxidation by engineering efficient catalysts via single-atom modification. The combined electrochemical measurements, in situ characterization, and density functional theory calculations unravel synergistic effects of single Rh atoms and Pt nanocubes and identify reaction pathways leading to the selective C–C bond cleavage to oxidize ethanol to CO 2 . This study provides a unique single-atom approach to tune the activity and selectivity toward complicated electrocatalytic reactions.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- ACS Petroleum Research Fund; National Research Foundation of Korea (NRF); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-05CH11231; AC02-06CH11357; SC0009476; SC0012653; SC0012704
- OSTI ID:
- 1854052
- Report Number(s):
- BNL--222925-2022-JAAM; BNL-222923-2022-JAAM; e2112109119
- Journal Information:
- Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 11 Vol. 119; ISSN 0027-8424
- Publisher:
- Proceedings of the National Academy of SciencesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
CO electrooxidation on well-characterized Pt-Ru alloys
One step electrochemical synthesis of bimetallic PdAu supported on nafion–graphene ribbon film for ethanol electrooxidation