Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Hironori, Tsunoyama"'
Enhanced oxygen reduction activity of size-selected platinum subnanocluster catalysts: Ptn (n = 3–9)
Autor:
Akira Ohnuma, Koki Takahashi, Hironori Tsunoyama, Tomoya Inoue, Pei Zhao, Archana Velloth, Masahiro Ehara, Nobuyuki Ichikuni, Masao Tabuchi, Atsushi Nakajima
Publikováno v:
Catalysis Science & Technology. 12:1400-1407
Ptn subnanoclusters (n = 3–9) on a carbon substrate exhibit 1.6–2.2 times higher activity than the standard Pt/C catalysts. EXAFS experiments and DFT calculations show plausible structures and energetics for reaction intermediates in the processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b075a320c2bcb3f8a2cde36a93f20da
https://doi.org/10.1039/d1cy00573a
https://doi.org/10.1039/d1cy00573a
Publikováno v:
AIP Advances, Vol 8, Iss 6, Pp 065002-065002-9 (2018)
The floating-gate memory characteristics of thiolate-protected gold (Au:SR) and palladium doped Au (AuPd:SR) nanoclusters, Au25(SR)18, Au24Pd(SR)18, and Au38(SR)24 (R = C12H25), were investigated by capacitance-voltage (C–V) measurements in vacuum.
Externí odkaz:
https://doaj.org/article/5eb09f9d4210467fb0ecaed71e4009ad
Autor:
Atsushi Nakajima, Yuichi Negishi, Naoyuki Hirata, Toyoaki Eguchi, Hironori Tsunoyama, Takaho Yokoyama
Publikováno v:
The Journal of Physical Chemistry C. 124:363-371
Vibrational spectra of thiolate-protected gold nanoclusters, prepared in a monolayer manner using the Langmuir–Blodgett method, were measured by means of infrared reflection absorption spectroscopy...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6ecfe330f75caed30086fe084b99ab8
https://doi.org/10.1021/acs.jpcc.9b07550
https://doi.org/10.1021/acs.jpcc.9b07550
Autor:
Archana Velloth, Masahiro Ehara, Koki Takahashi, Akira Ohnuma, Hironori Tsunoyama, Atsushi Nakajima, Masao Tabuchi, Nobuyuki Ichikuni
Publikováno v:
Chemical Communications. 55:12603-12606
Single-size platinum Pt6 subnanoclusters exhibit superior mass-specific and surface-specific activities for the oxygen reduction reaction. The enhanced activity is attributed to polarized electron distributions based on rigorous structure characteriz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a939832d4a5a418354d9b5ec4eb3b47
https://doi.org/10.1039/c9cc06327g
https://doi.org/10.1039/c9cc06327g
Publikováno v:
The Journal of Physical Chemistry C. 122:26080-26087
The formation and molecular structure of a self-assembled monolayer (SAM) of anthracene-substituted alkanethiol on Au(111) have been investigated by scanning tunneling microscopy and infrared reflection absorption spectroscopy. A clean and well-order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9b029e8f3ef52ea4a73a7613b586ec7
https://doi.org/10.1021/acs.jpcc.8b08907
https://doi.org/10.1021/acs.jpcc.8b08907
Publikováno v:
Accounts of Chemical Research. 51:1735-1745
ConspectusNanoclusters, aggregates of several to hundreds of atoms, have been one of the central issues of nanomaterials sciences owing to their unique structures and properties, which could be found neither in nanoparticles with several nanometer di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dedb4d926c431891d6edd0008dd384d
https://doi.org/10.1021/acs.accounts.8b00085
https://doi.org/10.1021/acs.accounts.8b00085
Autor:
Masafumi Komori, Atsushi Nakajima, Chuhang Zhang, Yohei Yamano, Hironori Tsunoyama, Toyoaki Eguchi
Publikováno v:
Topics in Catalysis. 61:126-135
Size-specific chemical properties of metal nanoclusters (NCs) have motivated their applications in catalysis, whose properties were found to be dramatically different from bulk materials. We have reported herein the size-dependent activity of platinu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f96309eac4e1b74f885bd3b348b492d8
https://doi.org/10.1007/s11244-018-0884-7
https://doi.org/10.1007/s11244-018-0884-7
Autor:
Masahiro Shibuta, Masafumi Komori, Toyoaki Eguchi, Atsushi Nakajima, Hironori Tsunoyama, Ryota Kobayashi, Haruchika Ito
Publikováno v:
Catalysis Science & Technology. 8:5827-5834
Metal nanoclusters comprising several to tens of atoms are strong candidates for advanced catalysis as they are highly size-specific, with unique chemical properties, which were revealed by gas-phase molecular beam experiments. The size-specificity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::018b441a16c5fa86ecf78d87321dda76
https://doi.org/10.1039/c8cy01645c
https://doi.org/10.1039/c8cy01645c
Publikováno v:
Physical Chemistry Chemical Physics. 20:26273-26279
The chemical reaction kinetics of an alkali-like superatom comprising a tantalum encapsulating Si16 cage nanocluster (Ta@Si16) deposited on an n-type organic substrate composed of overlayered C60 fullerene upon exposure to nitric oxide (NO) as a reac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64dda748bc6507c0c311e2147f7dc360
https://doi.org/10.1039/c8cp05580g
https://doi.org/10.1039/c8cp05580g
Autor:
Hironori Tsunoyama, Atsushi Nakajima
Publikováno v:
The Journal of Physical Chemistry C. 121:20680-20686
Rubrene (C42H28, RUB) has been seen to be attractive as a promising building block for organic semiconductors. By means of gas-phase anion photoelectron spectroscopy, the adiabatic electron affinity for RUB molecules is determined to be 1.48 ± 0.03
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::078ebc04e739af7574f54cc930d829ec
https://doi.org/10.1021/acs.jpcc.7b06900
https://doi.org/10.1021/acs.jpcc.7b06900