Journal
NANOSCALE
Volume 7, Issue 7, Pages 3035-3042Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr05343e
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Funding
- 973 programs of China [2011CB013000, 2011CBA00701]
- NSFC [21103010, 21373027, 21325415, 21174019, 51161120361]
- Fok Ying Tong Education Foundation [131043]
- Beijing Nova Program
- Beijing Natural Science Foundation [2152028]
- 111 Project [807012]
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Atomically thick two-dimensional materials have been increasingly attracting research interest not only due to their promising applications in a range of functional devices but also to their theoretical value to unraveling the catalytic electron transfer process within a simplified scenario. In this work, the monoatomic-thick dot-sized graphitic carbon nitride (g-C3N4) has been synthesized and intimately contacted to the basal plane of the graphene sheet to form the monolayer g-C3N4 dots@graphene (MTCG). The electrocatalytic activity of the MTCG in the oxygen reduction reaction is found to rival that of the commercial Pt/C catalyst in terms of the catalytic current density and half-wave potential. The density functional theory calculations confirm the catalytic improvement of the MTCG originates from a higher efficiency for the reduction of OOH-than that of the g-C3N4 alone; therefore, the current work is expected to provide new insights in developing next-generation, highly efficient catalysts for the oxygen reduction reaction.
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