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- W2286939478 abstract "Despite being technically possible, the hydrogen production by means of electrocatalytic water splitting is still practically unreachable mainly because of the lack of inexpensive and high active catalysts. Herein, a novel and facile approach by melamine polymerization, exfoliation and Co(2+)-assisted thermal annealing is developed to fabricate Co nanoparticles embedded in bamboo-like and nitrogen-rich carbonitride nanotubes (Co@NCN). The electronic interaction between the embedded Co nanoparticles and N-rich carbonitride nanotubes could strongly promote the HER performance. The optimized Co@NCN-800 exhibits outstanding HER activity with an onset potential of -89 mV (vs RHE), a large exchange current density of 62.2 μA cm(-2), and small Tafel slope of 82 mV dec(-1), as well as excellent stability (5000 cycles) in acid media, demonstrating the potential for the replacement of Pt-based catalysts. Control experiments reveal that the superior performance should be ascribed to the synergistic effects between embedded Co nanoparticles and N-rich carbonitride nanotubes, which originate from the high pyridinic N content, fast charge transfer rate from Co particles to electrodes via electronic coupling, and porous and bamboo-like carbonitride nanotubes for more active sites in HER." @default.
- W2286939478 created "2016-06-24" @default.
- W2286939478 creator A5006651636 @default.
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- W2286939478 date "2016-03-04" @default.
- W2286939478 modified "2023-10-15" @default.
- W2286939478 title "Metallic Cobalt Encapsulated in Bamboo-Like and Nitrogen-Rich Carbonitride Nanotubes for Hydrogen Evolution Reaction" @default.
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- W2286939478 doi "https://doi.org/10.1021/acsami.5b11717" @default.
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