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One‐Step Formation of 3D Alternating‐Layer Structures Composed of Plates of Nanocrystalline Bismuth Oxide and Spherical Particles of Metallic Bismuth
Author(s) -
Bokhonov Boris B.,
Yukhin Yurii M.
Publication year - 2017
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201700099
Subject(s) - bismuth , nanocrystalline material , materials science , oxide , phase (matter) , metal , layer (electronics) , benzyl alcohol , nanotechnology , chemical engineering , chemistry , organic chemistry , metallurgy , engineering , catalysis
Three‐dimensional (3D) objects with a periodic structure composed of particles differing in composition and/or morphology have attracted a lot of attention due to their high potential for achieving new sets of properties nonexistent in single‐phase materials and materials lacking a periodic structure. In this work, we have demonstrated a possibility of synthesizing a periodic heterostructure consisting of layers of nanocrystalline β‐bismuth oxide and layers of spherical particles of metallic bismuth in a single step by conducting partial reduction of [Bi 6 O 5 (OH) 3 ](NO 3 ) 5 ·3H 2 O in benzyl alcohol. The synthesis method of micrometer‐sized particles of nanocrystalline β‐Bi 2 O 3 /spherical Bi with a 3D periodic structure is proposed in this work for the first time. The mechanisms governing the interface formation during the synthesis of the β‐Bi 2 O 3 /spherical Bi alternating‐layer structure are discussed. The structural evolution of [Bi 6 O 5 (OH) 3 ](NO 3 ) 5 ·3H 2 O during its partial reduction in benzyl alcohol shows an example of the strong interrelation between the phase composition, morphology and architecture of the reaction products derived from a single‐phase precursor. The proposed synthesis method of the β‐Bi 2 O 3 /spherical Bi alternating‐layer 3D materials is easily scalable, shows good reproducibility and is based on simple experimental procedures.