Communication
ChemComm
(22123 eV), D-RuNi (22121 eV), and D-Ru (22118 eV) (Fig. 2(B)). Prof. Kentaro Tanaka and Assoc. Prof. Yasuyuki Yamada
These results indicate that D-RuCu was the most oxidized (or (Nagoya Univ.) for ESI-TOF MS measurements.
the most positively charged) relative to D-RuZn, D-RuNi, and
D-Ru. The positive shift of the Ru 3p3/2 XPS peak of D-RuCu
Conflicts of interest
462.2 eV) compared with D-RuNi (461.5 eV) (Fig. 3(A) and
(
Table S6, ESI†) is in agreement with the Ru K-edge XANES
results. Thus, the Ru nanoparticles in D-RuCu were more
positively charged Ru species than those in other D-series.
The Cu, Ni and Zn K-edge XANES showed that Cu, Ni, and
Zn species were not reduced to zero-valent (Fig. S13–S15, ESI†),
and the Cu, Ni and Zn K-edge EXAFS Fourier transforms
suggested the existence of Cu–O, Ni–O, and Zn–O coordination
There are no conflicts to declare.
Notes and references
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2
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8
of acetophenone. The present study suggests the possibility of
the selective transformation of novel metal nanostructures
using single 3d transition metals, leading to improvements in
their catalytic performance.
This work was financially supported by the JSPS Funding
Program for Next-Generation World-Leading Researchers (GR090);
KAKENHI Grant No. 23750068 and 26620043 from JSPS, Japan; the
MEXT Project of Integrated Research on Chemical Synthesis; the
1
1
1
1
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Kao Foundation for Arts and Sciences; and the Noguchi Institute. 22 N. M. Barbosa Neto, L. De Boni, C. R. Mendonça, L. Misoguti, S. L. Queiroz,
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PF-PAC (No. 2014G060 and 2016G093). The XPS measurements
were conducted at the Nagoya University Nanofabrication Plat-
form, supported by the Nanotechnology Platform Program of
MEXT, Japan. HAADF-STEM measurements were conducted at
the High Voltage Electron Microscope Laboratory, IMSS, Nagoya
University, supported by the ‘‘Advanced Characterization Nano-
technology Platform’’ of MEXT, Japan. We thank Mr K. Higuchi
2
2
2
2
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(Nagoya Univ.) for HAADF-STEM measurements. We thank
Chem. Commun.
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