TY - JOUR
T1 - High-precision charge analysis in a catalytic nanoparticle by electron holography
AU - Aso, Ryotaro
AU - Midoh, Yoshihiro
AU - Tanigaki, Toshiaki
AU - Murakami, Yasukazu
N1 - Publisher Copyright:
© 2024 Oxford University Press. All rights reserved.
PY - 2024/8/1
Y1 - 2024/8/1
N2 - The charge state of supported metal catalysts is the key to understand the elementary processes involved in catalytic reactions. However, high-precision charge analysis of the metal catalysts at the atomic level is experimentally challenging.To address this critical challenge, high-sensitivity electron holography has recently been successfully applied for precisely measuring the elementary charges on individual platinum nanoparticles supported on a titanium dioxide surface. In this review, we introduce the latest advancements in high-precision charge analysis and discuss the mechanisms of charge transfer at the metal–support interface. The development of charge measurements is entering a new era, and charge analyses under conditions closer to practical working environments, such as real-time, real-space, and reactive gas environments, are expected to be realized in the near future.
AB - The charge state of supported metal catalysts is the key to understand the elementary processes involved in catalytic reactions. However, high-precision charge analysis of the metal catalysts at the atomic level is experimentally challenging.To address this critical challenge, high-sensitivity electron holography has recently been successfully applied for precisely measuring the elementary charges on individual platinum nanoparticles supported on a titanium dioxide surface. In this review, we introduce the latest advancements in high-precision charge analysis and discuss the mechanisms of charge transfer at the metal–support interface. The development of charge measurements is entering a new era, and charge analyses under conditions closer to practical working environments, such as real-time, real-space, and reactive gas environments, are expected to be realized in the near future.
KW - catalytic nanoparticle
KW - charge analysis
KW - charge transfer
KW - electron holography
KW - metal–support interface
KW - noise reduction
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U2 - 10.1093/jmicro/dfae018
DO - 10.1093/jmicro/dfae018
M3 - Review article
C2 - 38549513
AN - SCOPUS:85200130251
SN - 2050-5698
VL - 73
SP - 301
EP - 307
JO - Microscopy
JF - Microscopy
IS - 4
ER -