The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Catalytic Mechanisms of Sulfur-Doped Graphene as Efficient Oxygen Reduction Reaction Catalysts for Fuel Cells
Abstract
Density functional theory (DFT) was applied to study sulfur-doped graphene clusters as oxygen reduction reaction (ORR) cathode catalysts for fuel cells. Several sulfur-doped graphene clusters with/without Stone–Wales defects were investigated and their electronic structures, reaction free energy, transition states, and energy barriers were calculated to predict their catalytic properties. The results show that sulfur atoms could be adsorbed on the graphene surface, substitute carbon atoms at the graphene edges in the form of sulfur/sulfur oxide, or connect two graphene sheets by forming a sulfur cluster ring. These sulfur-doped graphene clusters with sulfur or sulfur oxide locating at graphene edges show electrocatalytic activity for ORR. Catalytic active sites distribute at the zigzag edge or the neighboring carbon atoms of doped sulfur oxide atoms, which possess large spin or charge density. For those being the active catalytic sites, sulfur atoms with the highest charge density take a two-electron transfer pathway while the carbon atoms with high spin or charge density follow a four-electron transfer pathway. It was predicted from the reaction energy barriers that the sulfur-doped graphene could show ORR catalytic properties comparable to platinum. The prediction is consistent with the experimental results on S-doped graphene.
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Cites
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Self-citationHigh-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
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Cited by
Metal‐Free Carbon Materials for CO2 Electrochemical Reduction
Duan, X., Xu, J., Wei, Z., Ma, J., Guo, S., Wang, S., Liu, H., & Dou, S. (2017) · Advanced Materials · doi:10.1002/adma.201701784 · Cited by 754
Heteroatom doped graphene engineering for energy storage and conversion
Kumar, R., Sahoo, S., Joanni, E., Singh, R. K., Maegawa, K., Tan, W. K., Kawamura, G., Kar, K. K., & Matsuda, A. (2020) · Materials Today · doi:10.1016/j.mattod.2020.04.010 · Cited by 681
Efficient Metal‐Free Electrocatalysts from N‐Doped Carbon Nanomaterials: Mono‐Doping and Co‐Doping
Gao, K., Wang, B., Tao, L., Cunning, B. V., Zhang, Z., Wang, S., Ruoff, R. S., & Qu, L. (2019) · Advanced Materials · doi:10.1002/adma.201805121 · Cited by 486
Emerging new generation electrocatalysts for the oxygen reduction reaction
Raj, C. R., Samanta, A., Noh, S. H., Mondal, S., Okajima, T., & Ohsaka, T. (2016) · Journal of Materials Chemistry A · doi:10.1039/c6ta03300h · Cited by 201
Zhou, H., Zhang, J., Amiinu, I. S., Zhang, C., Liu, X., Tu, W., Pan, M., & Mu, S. (2016) · Physical Chemistry Chemical Physics · doi:10.1039/c6cp00174b · Cited by 128
Metadata
- Authors
- Zhang, L., Niu, J., Li, M., & Xia, Z.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-02-07
- Volume
- 118
- Issue
- 7
- Pages
- 3545-3553
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2334028345
- Cited by
- 432
- References
- 45
- FWCI
- 14.63
- Type
- journal article
- Language
- en
- Open access
- closed
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