title: Seaweed-Derived Route to Fe2O3 Hollow Nanoparticles/N-Doped Graphene Aerogels with High Lithium Ion Storage Performance.
abstract: We developed a nanoscale Kirkendall effect assisted method for simple and scalable synthesis of three-dimensional (3D) Fe2O3 hollow nanoparticles (NPs)/graphene aerogel through the use of waste seaweed biomass as new precursors. The Fe2O3 hollow nanoparticles with an average shell thickness of ∼6 nm are distributed on 3D graphene aerogel, and also act as spacers to make the separation of the neighboring graphene nanosheets. The graphene-Fe2O3 aerogels exhibit high rate capability (550 mA h g(-1) at 5 A g(-1)) and excellent cyclic stability (729 mA h g(-1) at 0.1 A g(-1) for 300 cycles), outperforming all of the reported Fe2O3/graphene hybrid electrodes, due to the hollow structure of the active Fe2O3 NPs and the unique structure of the 3D graphene aerogel framework. The present work represents an important step toward high-level control of high-performance 3D graphene-Fe-based NPs aerogels for maximizing lithium storage with new horizons for important fundamental and technological applications.
authors.affiliation: Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, School of Environmental Science and Engineering, Qingdao University , Qingdao 266071, China.
authors.forename: Long
authors.initials: L
authors.lastname: Liu
authors.affiliation: Analytical and Testing Center, South China University of Technology , Guangzhou 510640, China.
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Yang
authors.affiliation: Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, School of Environmental Science and Engineering, Qingdao University , Qingdao 266071, China.
authors.forename: Chunxiao
authors.initials: C
authors.lastname: Lv
authors.affiliation: Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, School of Environmental Science and Engineering, Qingdao University , Qingdao 266071, China.
authors.forename: Aimei
authors.initials: A
authors.lastname: Zhu
authors.affiliation: Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, School of Environmental Science and Engineering, Qingdao University , Qingdao 266071, China.
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Department of Materials Science and Engineering and Department of Energy and Resources Engineering, College of Engineering, Peking University , Beijing 100871, China.
authors.forename: Shaojun
authors.initials: S
authors.lastname: Guo
authors.affiliation: Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan 030001, China.
authors.forename: Chengmeng
authors.initials: C
authors.lastname: Chen
authors.affiliation: Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, School of Environmental Science and Engineering, Qingdao University , Qingdao 266071, China.|Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University , Nathan, Brisbane, Queensland 4111, Australia.
authors.forename: Dongjiang
authors.initials: D
authors.lastname: Yang
keywords: Kirkendall effect; egg box; hollow nanoparticles; lithium ion batteries; seaweed