61Ni synchrotron-radiation-based M?ssbauer absorption spectroscopy of Ni nanoparticle composites
61Ni synchrotron-radiation-based M?ssbauer absorption spectroscopy of Ni nanoparticle composites
复制标题
基于 61Ni 同步辐射的 Ni 纳米粒子复合材料穆斯堡尔吸收光谱
DOI：
10.1007/s10751-018-1488-0
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发表时间：
2018
影响因子：
--
通讯作者：
Seto Makoto
中科院分区：
文献类型：
--
作者：
Masuda Ryo;Kobayashi Hirokazu;Aoyama Yoshimasa;Saito Makina;Kitao Shinji;Ishibashi Hiroki;Hosokawa Shuichi;Mitsui Takaya;Yoda Yoshitaka;Kitagawa Hiroshi;Seto Makoto
我们获得了与纳米颗粒相关的三种材料的能量域61 Ni同步辐射穆斯堡尔吸收光谱：Ni 2（C8 O 6 H2）金属有机骨架（MOFs）、由MOFs完全热分解合成的Ni纳米颗粒以及由MOFs部分热分解合成的Ni纳米颗粒和MOFs的复合物。所有样品的61 Ni丰度没有被富集，但我们成功地能够在1天或更短的时间内获得它们的光谱，通过使用高效的测量系统，其中来自能量标准61 Ni 86 V 14箔的内转换电子被检测到。虽然复合材料中的纳米颗粒组分和MOF组分都包含Ni原子，但可以评估Ni纳米颗粒组分的穆斯堡尔参数;复合材料中的Ni纳米颗粒组分的磁超精细场不同于完全热分解获得的Ni纳米颗粒。这种差异意味着纳米颗粒组分的3d和/或4selectron构型受到复合材料中MOF组分的影响。
We obtained energy-domain61Ni synchrotron-radiation-based Mössbauer absorption spectra of three materials that relate to nanoparticles: Ni2(C8O6H2) metal-organic frameworks (MOFs), Ni nanoparticles synthesized by complete heat decomposition of the MOFs, and the composites of Ni nanoparticles and the MOFs synthesized by partial decomposition of the MOFs. The61Ni abundance of all the samples was not enriched but we were successfully able to obtain their spectra in 1 day or less, by using a highly efficient measurement system where the internal conversion electrons from energy standard61Ni86V14foil were detected. Although both nanoparticle constituent and MOF constituent in the composites included Ni atoms, the Mössbauer parameters of the Ni nanoparticle constituent could be evaluated; the magnetic hyperfine field of the Ni nanoparticle constituent in the composites was different from that of the Ni nanoparticles obtained by the complete heat decomposition. This difference implied that the 3dand/or 4selectron configuration of the nanoparticle constituent were affected by the MOF constituent in the composites.