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Journal article
Electrocatalytic CO2 reduction on earth abundant 2D Mo2C and Ti3C2 MXenes
Chemical communications (Cambridge, England), v 57(13), pp 1675-1678
14 Feb 2021
PMID: 33465209
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Mo2C and Ti3C2 MXenes were investigated as earth-abundant electrocatalyts for the CO2 reduction reaction (CO2RR). Mo2C and Ti3C2 exhibited faradaic efficiencies of 90% (250 mV overpotential) and 65% (650 mV overpotential), respectively, for the reduction of CO2 to CO in acetonitrile using an ionic liquid electrolyte. The use of ionic liquid 1-ethyl-2-methylimidazolium tetrafluoroborate as an electrolyte in organic solvent suppressed the competing hydrogen evolution reaction. Density functional theory (DFT) calculations suggested that the catalytic active sites are oxygen vacancy sites on both MXene surfaces. Also, a spontaneous dissociation of adsorbed COOH species to a water molecule and adsorbed CO on Mo2C promote the CO2RR.
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Details
- Title
- Electrocatalytic CO2 reduction on earth abundant 2D Mo2C and Ti3C2 MXenes
- Creators
- Nuwan H. Attanayake - Temple UniversityHuta R. Banjade - Temple UniversityAkila C. Thenuwara - Temple UniversityBabak Anasori - Drexel UniversityQimin Yan - Temple UniversityDaniel R. Strongin - Temple University
- Publication Details
- Chemical communications (Cambridge, England), v 57(13), pp 1675-1678
- Publisher
- Royal Soc Chemistry
- Number of pages
- 4
- Grant note
- DE-SC0012575 / Center for the Computational Design of Functional Layered Materials, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Basic Energy Sciences; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000618825200023
- Scopus ID
- 2-s2.0-85100939906
- Other Identifier
- 991019167831104721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary