The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
Tailoring the Edge Structure of Molybdenum Disulfide toward Electrocatalytic Reduction of Carbon Dioxide
Abstract
Electrocatalytic conversion of carbon dioxide (CO 2 ) into energy-rich fuels is considered to be the most efficient approach to achieve a carbon neutral cycle. Transition-metal dichalcogenides (TMDCs) have recently shown a very promising catalytic performance for CO 2 reduction reaction in an ionic liquid electrolyte. Here, we report that the catalytic performance of molybdenum disulfide (MoS 2 ), a member of TMDCs, can be significantly improved by using an appropriate dopant. Our electrochemical results indicate that 5% niobium (Nb)-doped vertically aligned MoS 2 in ionic liquid exhibits 1 order of magnitude higher CO formation turnover frequency (TOF) than pristine MoS 2 at an overpotential range of 50–150 mV. The TOF of this catalyst is also 2 orders of magnitude higher than that of Ag nanoparticles over the entire range of studied overpotentials (100–650 mV). Moreover, the in situ differential electrochemical mass spectrometry experiment shows the onset overpotential of 31 mV for this catalyst, which is the lowest onset potential for CO 2 reduction reaction reported so far. Our density functional theory calculations reveal that low concentrations of Nb near the Mo edge atoms can enhance the TOF of CO formation by modifying the binding energies of intermediates to MoS 2 edge atoms.
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Metadata
- Authors
- Abbasi, P., Asadi, M., Liu, C., Sharifi-Asl, S., Sayahpour, B., Behranginia, A., Zapol, P., Shahbazian-Yassar, R., Curtiss, L. A., & Salehi-Khojin, A.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-12-19
- Volume
- 11
- Issue
- 1
- Pages
- 453-460
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2559960727
- Cited by
- 263
- References
- 30
- FWCI
- 5.45
- Type
- journal article
- Language
- en
- Open access
- closed
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