Surface plasmon mediates the visible light–responsive lithium–oxygen battery with Au nanoparticles on defective carbon nitride

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  • Zhuo Zhu
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China
  • Youxuan Ni
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China
  • Qingliang Lv
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China
  • Jiarun Geng
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China
  • Wei Xie
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China
  • Fujun Li
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China
  • Jun Chen
    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China

抄録

<jats:title>Significance</jats:title> <jats:p>Deployment of electric vehicles with long driving ranges demands new electrochemistry beyond the current Li-ion batteries. Aprotic lithium–oxygen batteries have gained considerable attention and promise to provide energy density of approximately three to five times that of state-of-the-art Li-ion batteries, but they are plagued by sluggish reaction kinetics at cathodes and induced large-voltage hysteresis. A photo-mediated strategy has been attempted to reduce the discharge/charge overvoltage, but it is obstructed by the limited ultraviolet light absorption and the inevitably high carrier recombination on semiconductor photocathodes. Here, a plasmonic heterojunction of gold nanoparticle-decorated carbon nitride with nitrogen vacancies is used as a bifunctional catalyst to accelerate the oxygen cathode reactions of the lithium–oxygen battery under visible light.</jats:p>

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