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- W2008573944 abstract "Abstract Highly porous N-doped carbons for the electrocatalytic production of H 2 O 2 via oxygen reduction were synthesized from paraformaldehyde cross-linked collagen through heating in vacuum at different temperatures (400–800 °C). SEM images and N 2 adsorption/desorption isotherms of such collagen-derived carbons reveal the formation of a sheet-like porous structure with increasing the carbonization temperature. A higher carbonization temperature favors the formation of a quaternary-N structure and the removal of oxygen-containing functional groups and therefore enhances the graphitic crystallinity, which were confirmed by X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The collagen-derived carbon synthesized at 800 °C for 6 h shows a good electrocatalytic activity for the four-electron oxygen reduction reaction (ORR). On the other hand, the carbons prepared at 400–800 °C for 4 h possess a high selectivity for the H 2 O 2 production at potentials more negative than 0.6 V. The H 2 O 2 production percentage for the carbon synthesized at 400 °C even reached 93%. In comparison with undoped carbons, the much more positive onset potentials and the nearly two-electron process of the ORR on these collagen-derived porous carbons reveal their unique electrocatalytic activity for H 2 O 2 production." @default.
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- W2008573944 date "2012-09-01" @default.
- W2008573944 modified "2023-10-16" @default.
- W2008573944 title "Novel synthesis of N-doped porous carbons from collagen for electrocatalytic production of H2O2" @default.
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- W2008573944 doi "https://doi.org/10.1016/j.apcatb.2012.06.031" @default.
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