Key Laboratory of Automobile Materials (Jilin University), Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China.
Dalton Trans. 2013 Jun 14;42(22):8070-7. doi: 10.1039/c3dt50333j. Epub 2013 Apr 10.
We report a facile approach to prepare a cobalt hybrid/graphene (Co/G) nanocomposite via a general one-pot hydrothermal synthesis. NaBH4 is used as the reducing agent. Co/G nanocomposite possesses narrow size-distribution and good dispersion, providing tremendous potential for energy and environment applications. As a proof of concept, we demonstrate the use of the Co/G nanocomposite in a lithium-ion battery and an adsorbent for Congo red (CR), respectively. More importantly, more than 97% of capacity retention (605 mAh g(-1)) is retained after 50 cycles, indicative of high charge/discharge reversibility of the Co/G nanocomposite electrode. Furthermore the CR removal ability of the Co/G nanocomposite can reach 934.9 mg g(-1).
我们报告了一种通过通用的一步水热合成制备钴杂化/石墨烯（Co/G）纳米复合材料的简便方法。NaBH4 用作还原剂。Co/G 纳米复合材料具有窄的尺寸分布和良好的分散性，为能源和环境应用提供了巨大的潜力。作为概念验证，我们分别将 Co/G 纳米复合材料用于锂离子电池和刚果红（CR）的吸附剂。更重要的是，在 50 次循环后保留了超过 97%的容量保持率（605 mAh g(-1)），表明 Co/G 纳米复合材料电极具有高的充/放电可逆性。此外，Co/G 纳米复合材料对 CR 的去除能力可达到 934.9 mg g(-1)。
