TY - JOUR
T1 - Selective deposition of platinum hemispheres on the {100} facets of synthetic diamond
AU - Bokhonov, Boris B.
AU - Dudina, Dina V.
AU - Kato, Hidemi
AU - Wada, Takeshi
N1 - Funding Information:
GIMRT program (proposal number 18GK0003), Institute for Materials Research, Tohoku University, Japan
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/1
Y1 - 2020/1
N2 - In this work, a two-step preparation method of diamond-metal heterostructures, in which platinum particles are attached to the {100} facets of diamond microcrystals, was elaborated. At the first step, silver particles are deposited on the {100} facets of the synthetic diamond crystals by the powder annealing method. At the second step, the microcrystals having silver particles deposited on their surface are treated by aqueous solution of hexachloroplatinic acid H2PtCl6. The treatment results in the formation of hollow platinum hemispheres on the {100} facets of the diamond crystals. Detailed morphological studies of the synthesized heterostructures have been conducted to reveal a nanocrystalline structure of the hollow platinum hemispheres. Diamond-noble metal heterostructures of these morphology and composition have been synthesized and investigated for the first time.
AB - In this work, a two-step preparation method of diamond-metal heterostructures, in which platinum particles are attached to the {100} facets of diamond microcrystals, was elaborated. At the first step, silver particles are deposited on the {100} facets of the synthetic diamond crystals by the powder annealing method. At the second step, the microcrystals having silver particles deposited on their surface are treated by aqueous solution of hexachloroplatinic acid H2PtCl6. The treatment results in the formation of hollow platinum hemispheres on the {100} facets of the diamond crystals. Detailed morphological studies of the synthesized heterostructures have been conducted to reveal a nanocrystalline structure of the hollow platinum hemispheres. Diamond-noble metal heterostructures of these morphology and composition have been synthesized and investigated for the first time.
KW - Diamond microcrystals
KW - Facet-selective deposition
KW - Galvanic replacement
KW - Hollow hemisphere
KW - Platinum
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U2 - 10.1016/j.diamond.2019.107620
DO - 10.1016/j.diamond.2019.107620
M3 - Article
AN - SCOPUS:85074635889
SN - 0925-9635
VL - 101
JO - Diamond and Related Materials
JF - Diamond and Related Materials
M1 - 107620
ER -