青岛科技大学  English 
陈英杰
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教师拼音名称:chenyingjie

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毕业院校:中国科学院海洋研究所

学科:

材料学

曾获荣誉:

2018-10-09 我最喜爱的老师

2019-09-13 校级优秀班主任

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Molten salt-assisted carbonization and unfolding of Fe, Co-codoped ZIF-8 to engineer ultrathin graphite flakes for bifunctional oxygen electrocatalysis

关键字:REDUCED GRAPHENE; PHOTOCATALYSTS; RESONANCE

摘要:Plasmonic Ag nanoparticles have strong spectral absorption in ultraviolet and visible light due to unique localized surface plasmon resonance effects. Meanwhile, nitrogen-doped graphene (NG) incorporates nitrogen (N) atoms into graphene lattice through a hydrothermal process, thereby providing active oxygen reduction reaction (ORR) sites. Herein, N-doped graphene decorated with plasmonic Ag nanoparticles (Ag/NG) is synthesized and utilized as ORR catalyst. The ORR performance of Ag/NG greatly exceeds that of pure NG. Its half-wave potential is 0.86 V, exceeding that of commercial Pt/C (0.83 V). Under the AM 1.5G simulated sunlight, Ag/NG demonstrates photo-enhanced electrocatalytic performance with right shifting of onset potential and half-wave potential. In this case, the half-wave potential increases by 10 mV, while the current density also rises significantly. Therefore, the Ag/NG composite provides a potential strategy for the development of solar-enhanced electrocatalysts for fuel cells and metal-air batteries.

卷号:9

期号:8

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