...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >One dimensional hierarchical nanoflakes with nickel-immobilization for high performance catalysis and histidine-rich protein adsorption
【24h】

One dimensional hierarchical nanoflakes with nickel-immobilization for high performance catalysis and histidine-rich protein adsorption

机译：具有镍固定化的一维分层纳米薄膜，用于高性能催化和富含组氨酸富含蛋白质的蛋白质吸附

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

Complex hierarchical structures are closely associated with their performance in catalysts and protein adsorbents. However, it still remains a great challenge to develop a facile strategy to engineer their structural traits. Herein, we describe a facile strategy combining a hydrothermal reaction and mussel chemistry with a subsequent thermal treatment process for the controllable synthesis of three dimensional hierarchical nickel based composites, which are constructed from MnO nanowire (NW) cores and thin Al2O3@C shells anchored with ultrasmall metallic Ni nanoparticles (NPs). During the processing, MnO2 NWs were utilized as templates for the cores, while the two dimensional NiAl nanosheets were directly adopted as the shell to form three dimensional hierarchical MnO2@NiAl nanowires. After coating with polydopamine-Ni2+ (PDA-Ni2+) and subsequent carbonization under a nitrogen atmosphere, high coverage of metallic Ni NPs and the transformation from MnO2 to MnO cores were all observed in the final product. The size of outer Ni NPs and the morphology of the carbonized product can be tailored by varying the temperature of carbonization, which is also in close association with the performance of catalysis and protein adsorption. Notably, the N-doped carbon layer from polydopamine can act as an electron conductor and facilitate the prevention of the migration and aggregation of the Ni nanoparticles, while the ultrafine Ni nanoparticles can achieve maximum material utilization for catalysis and protein adsorption. In addition, the unique structures can expose more active catalytic or adsorption sites while enabling free diffusion of mass/electron transfer. As a result, the MnO@Al2O3@C/Ni composite exhibited excellent performance in catalysis and protein adsorption.
机译：复杂的层次结构与它们在催化剂和吸附剂的蛋白质表现密切相关。然而，它仍然是制定一个浅显的策略来设计他们的结构特点一个巨大的挑战。在此，我们描述了一种容易的策略相结合的水热反应和贻贝化学与随后的热处理过程的三维基于分层镍复合材料，这是从MnO的纳米线（NW）内核和薄氧化铝@ C shell的锚定带构造的可控合成超小型金属Ni纳米颗粒（NP）。在处理期间，二氧化锰纳米线被用作芯模板，而二维的NiAl纳米片直接采用为壳，以形成三维分层的MnO 2 @ NiAl金属纳米线。在氮气氛下与聚多巴胺-Ni2 +的（PDA-Ni2 +的）和随后的碳化涂覆之后，金属Ni NP的覆盖率高，从二氧化锰MnO的至核心变换都在最终产品中观察到。外的Ni NP的尺寸和碳化产物的形态可通过改变碳化的温度，这也与催化和蛋白质吸附的性能密切相关来定制。值得注意的是，从聚多巴胺N掺杂碳层可充当电子导体和促进预防镍纳米颗粒的迁移和聚集，而超细镍纳米颗粒可实现用于催化和吸附的蛋白质最大材料利用率。此外，该独特结构可暴露更多的活性催化或吸附位点，同时使质量/电子转移的自由扩散。其结果是，所述的MnO @氧化铝@ C / Ni复合表现出催化和蛋白质吸附性能优良。

著录项

  • 来源
  • 作者

    Wang Na; Wen Qiong; Liu Libin; Xu Jingli; Zheng Jing; Yue Mingbo; Asiri Abdullah M.; Marwani Hadi M.; Zhang Min;

  • 作者单位

    Shanghai Univ Engn Sci Coll Chem &

    Chem Engn Shanghai 201620 Peoples R China;

    Shanghai Univ Engn Sci Coll Chem &

    Chem Engn Shanghai 201620 Peoples R China;

    Qilu Univ Technol Sch Chem &

    Pharmaceut Engn Shandong Acad Sci Jinan 250353 Shandong Peoples R China;

    Shanghai Univ Engn Sci Coll Chem &

    Chem Engn Shanghai 201620 Peoples R China;

    Shanghai Univ Engn Sci Coll Chem &

    Chem Engn Shanghai 201620 Peoples R China;

    Qufu Normal Univ Sch Chem &

    Chem Engn Jining Shandong Peoples R China;

    King Abdulaziz Univ Chem Dept Fac Sci Jeddah 21589 Saudi Arabia;

    King Abdulaziz Univ Chem Dept Fac Sci Jeddah 21589 Saudi Arabia;

    Shanghai Univ Engn Sci Coll Chem &

    Chem Engn Shanghai 201620 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;无机化学;
  • 关键词

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