Red Phosphorus Nanoparticle@3D Interconnected Carbon Nanosheet Framework Composite for Potassium-Ion Battery Anodes

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Peixun XiongYunhua Xu

Abstract

Red phosphorus (P) has been recognized as a promising storage material for Li and Na. However, it has not been reported for K storage and the reaction mechanism remains unknown. Herein, a novel nanocomposite anode material is designed and synthesized by anchoring red P nanoparticles on a 3D carbon nanosheet framework for K-ion batteries (KIBs). The red P@CN composite demonstrates a superior electrochemical performance with a high reversible capacity of 655 mA h g-1 at 100 mA g-1 and a good rate capability remaining 323.7 mA h g-1 at 2000 mA g-1 , which outperform reported anode materials for KIBs. The transmission electron microscopy and theoretical calculation results suggest a one-electron reaction mechanism ofP + K+ + e- → KP, corresponding to a theoretical capacity of 843 mA h g-1 ,which is the highest value for anode materials investigated for KIBs. The study not only sheds light on the rational design of high performance red P anodes for KIBs but also offers a fundamental understanding of the potassium storage mechanism of red P.

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Citations

Jan 11, 2020·Chemical Communications : Chem Comm·Roman R KapaevPavel A Troshin
Apr 15, 2020·Chemistry, an Asian Journal·Yanan XuDan Li
Jul 29, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Li SunYihe Zhang
May 9, 2019·Advanced Science·Wei-Chung ChangHsing-Yu Tuan
Jun 4, 2019·Advanced Materials·Jia DingDavid Mitlin
May 24, 2019·Chemical Communications : Chem Comm·Yang LiYitai Qian
Jun 9, 2020·Chemistry : a European Journal·Bo WangCheng Chao Li
Jan 16, 2021·Small·Xianglong HuangZhiming M Wang
Feb 16, 2021·ACS Applied Materials & Interfaces·Jinhui CaoBingan Lu
Apr 23, 2021·Chemical Communications : Chem Comm·Haipeng WangJie Sun
Jan 31, 2020·ACS Applied Materials & Interfaces·Yuchuan ZhangYujie Zhu
Jun 30, 2019·ACS Applied Materials & Interfaces·Rakesh VermaChan-Jin Park
Aug 29, 2019·ACS Omega·Vincent GabaudanLaure Monconduit
Dec 10, 2019·ACS Applied Materials & Interfaces·Jihui LangYongbing Tang
Jan 16, 2020·Chemical Reviews·Tomooki HosakaShinichi Komaba

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