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- W2562255965 endingPage "1021" @default.
- W2562255965 startingPage "1014" @default.
- W2562255965 abstract "A highly active, durable, and low-cost hydrogen evolution reaction (HER) catalyst is desirable for energy storage through water splitting but its fabrication presents great challenges. Herein, mediated by dynamically self-assembled graphene quantum dots (GQDs), small, uniform, high-density, and well-dispersed CoP nanoparticles were grown in situ on pristine graphene for the first time. This hybrid nanostructure was then employed as HER electrocatalyst, showing an onset potential of 7 mV, an overpotential of 91.3 mV to achieve 10 mA cm-2 , a Tafel slope of 42.6 mV dec-1 , and an exchange current density of 0.1225 mA cm-2 , all of which compare favorably to those of most reported non-noble-metal catalysts. The developed catalyst also exhibits excellent durability with negligible current loss after 2000 cyclic voltammetry cycles (+0.01 to -0.17 V vs. RHE) or 34 h of chronoamperometric measurement at an overpotential of 91.3 mV. This work not only develops a new strategy for the fabrication of high-performance and inexpensive electrocatalysts for HER but also provides scientific insight into the mechanism of the dynamically self-assembled GQDsmediated synthesis process." @default.
- W2562255965 created "2017-01-06" @default.
- W2562255965 creator A5026775646 @default.
- W2562255965 creator A5039832836 @default.
- W2562255965 creator A5046867711 @default.
- W2562255965 creator A5067084153 @default.
- W2562255965 date "2017-01-31" @default.
- W2562255965 modified "2023-09-24" @default.
- W2562255965 title "Synthesis of Cobalt Phosphide Nanoparticles Supported on Pristine Graphene by Dynamically Self-Assembled Graphene Quantum Dots for Hydrogen Evolution" @default.
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- W2562255965 doi "https://doi.org/10.1002/cssc.201601761" @default.
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- W2562255965 hasPublicationYear "2017" @default.
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