Solvothermal-induced self-assembly of Fe2O3/GS aerogels for high Li-storage and excellent stability.
作者： Ronghua Wang , Chaohe Xu , Meng Du , Jing Sun , Lian Gao
关键词:
摘要: A novel solvothermal-induced self-assembly approach, using colloid sol as precursor, is developed to construct monolithic 3D metal oxide/GS (graphene sheets) aerogels. During the solvothermal process, graphene oxide (GO) highly reduced GS and self-assembles into macroscopic hydrogels, accompanying with in situ transformation of oxides. As a proof concept, Fe2 O3 /GS aerogels are synthesized based on Fe(OH)3 sol, which self-assemble an interconnected macroporous framework nanocrystals (20-50 nm) uniformly deposit GS. Benefitting from integration structures, large surface area, high electrical conductivity, good electrode homogeneity, hybrid manifests superior rate capability (930, 660 520 mAh g(-1) at 500, 2000 4000 mA g(-1), respectively) excellent prolonged cycling stability rates (733 during 1000 charge/discharge cycles g(-1)), demonstrating its great potential for application performance lithium ion batteries. The work described here provides versatile pathway various graphene-based
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