title: One-pot synthesis of uniform Fe₃O₄ nanospheres with carbon matrix support for improved lithium storage capabilities.
abstract: Poly(acrylic acid) (PAA)-entangled Fe(3)O(4) nanospheres are synthesized via a facile solvothermal method. In this system, ethylenediamine plays a very important role to control the uniformity of the nanospheres, and the PAA molecules serve as the carbon source that transforms into a carbon matrix after the heat treatment under an inert atmosphere. These uniform Fe(3)O(4) nanospheres with carbon matrix support manifest greatly enhanced lithium storage properties over prolonged cycling, with a reversible capacity of 712 mA h g(-1) retained after 60 charge/discharge cycles. However, the carbon-free counterpart can only deliver a much lower capacity of 328 mA h g(-1).
authors: School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457.
authors: Jun Song
authors: JS
authors: Chen
authors: Yumiao
authors: Y
authors: Zhang
authors: Xiong Wen David
authors: XW
authors: Lou
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D011211:Electric Power Supplies; D055664:Electrochemical Techniques; D005029:Ethylenediamines / Q000737:chemistry; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D054118:Nanospheres / Q000737:chemistry* / Q000648:ultrastructure
chemical_list: D000180:Acrylic Resins; D005029:Ethylenediamines; C006903:carbopol 940; C031234:ethylenediamine; D002244:Carbon; D008094:Lithium; D052203:Ferrosoferric Oxide