Amorphous to crystalline transformation of ultrafine Fe62B38 particles
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2022, Journal of Industrial and Engineering ChemistryCitation Excerpt :This method is based on a reduction of the salt of the transition metal by borohydride ions. According to [9] this method was for the first time described by Wonterghem et al., in 1986 [17] and later advanced by Linderoth and Morup et al., [18,19]. This reaction is usually conducted in a water or alcohol solution in anaerobic atmosphere, at 273 K or at room temperature, upon intense stirring.
Fe–B nanomaterials by mechanochemical synthesis: A Mössbauer study
2019, Journal of Magnetism and Magnetic MaterialsCitation Excerpt :Hence in our system the contribution with B4 = 22.9 T arises due to the embedding of four B atoms into the nearest coordination spheres of iron. The field B5 = 20.3 T is typical of Fe62B38 amorphous alloy [21], meanwhile in [3] similar contribution is ascribed to the insertion of five B atoms into the nearest surrounding of Fe atoms. The contribution with B6 = 17.5 T have not been reported for the Fe–B system so far.
Quasi in situ Mössbauer and XAS studies on FeB nanoalloy for heterogeneous catalytic dehydrogenation of ammonia borane
2011, Catalysis TodayCitation Excerpt :However, the Fourier transformed (Fig. 10) pattern of the post-dehydrogenated Fe-doped AB is different from that of the Fe foil. Since ferric or ferrous salts are easy to be reduced by BH4− and alloy with B to form amorphous Fe–B alloys in solution [40,42], FeCl2 in the sample may be reduced and alloy with B in AB during sample preparation and dehydrogenation treatment, which is confirmed by previous report [1] and Mössbauer characterization as mentioned above. The post-dehydrogenated sample shows a much broadened peak with the absence of high-order coordination peaks indicating an amorphous state of Fe species consistent with XRD results.
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