Abstract
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Urchin-like Fe3BO5@carbon core-shell structures (defined as "FBOC") have been fabricated by a one-step co-pyrolysis method using boric acid and ferrocene as raw materials. This complex architecture is composed of high-density Fe3BO5@carbon nanocables that stand on Fe3BO5@carbon structure. After removing the Fe3BO5, hollow urchin-like carbon material was obtained. In the reaction process, B2O3 and H 2O that decomposed from H3BO3 have synergistic effect on the formation of urchin-like structures. It is found that urchin-like structures can also be obtained when other materials that can release H 2O and B2O3 react with ferrocene. The influences of the reaction conditions on the preparation of FBOC have been discussed in detail. © 2011 Elsevier B.V. All rights reserved.