• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Co(salen) supported on graphene oxide for oxidation of lignin
【24h】

Co(salen) supported on graphene oxide for oxidation of lignin

机译：Co（salen）负载在氧化石墨烯上以氧化木质素

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Co(salen) was supported on graphene oxide (GO) (Co-GO) by covalently grafting. Spectroscopy analyses confirmed its successful synthesis. Co-GO demonstrated a high activity in the cleavage of beta-O-4 linkage in lignin model compounds. The catalyst was also effective in depolymerizing an organosolv lignin polymer. The polymer residues were separated, and extensively analyzed by FTIR and NMR in order to understand the various structural changes of the polymer occurring versus catalyst. In catalytic oxidation, the beta-O-4 ether linkages were cleaved and the side-chains were oxidized occurring in the polymer. The polymer was thus converted into smaller monomers called degradation products which were detected by GC-MS. The evolution of the polymer found that Co-GO exhibited a significant catalytic effect as compared with Co-NaY, Co-MCM-48, Co-SSZ-13. (C) 2016 Wiley Periodicals, Inc.
机译：通过共价接枝将Co（salen）负载在氧化石墨烯（GO）（Co-GO）上。光谱分析证实了其成功的合成。 Co-GO在木质素模型化合物中的β-O-4键合裂解中表现出高活性。该催化剂还有效地解聚了有机溶剂木质素聚合物。分离聚合物残余物，并通过FTIR和NMR进行广泛分析，以了解发生的聚合物与催化剂相比的各种结构变化。在催化氧化中，β-O-4醚键被裂解，侧链被氧化，发生在聚合物中。聚合物因此转化为较小的单体，称为降解产物，通过GC-MS检测。聚合物的演变发现，与Co-NaY，Co-MCM-48，Co-SSZ-13相比，Co-GO表现出显着的催化作用。 （C）2016威利期刊公司

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号