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Frontispiece: Nanoscopic Porous Iridium/Iridium Dioxide Superstructures (15 nm): Synthesis and Thermal Conversion by In Situ Transmission Electron Microscopy
Author(s) -
Pappert Kevin,
Loza Kateryna,
Shviro Meital,
Hagemann Ulrich,
Heggen Marc,
DuninBorkowski Rafal E.,
Schierholz Roland,
Maeda Takuya,
Kaneko Kenji,
Epple Matthias
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201984763
Subject(s) - iridium , transmission electron microscopy , nanoporous , porosity , materials science , nanoscopic scale , chemical engineering , in situ , scanning electron microscope , scanning transmission electron microscopy , nanotechnology , catalysis , chemistry , composite material , biochemistry , organic chemistry , engineering
Nanoparticulate nanoporous superstructures consisting of iridium and iridium dioxide were prepared by an easy reduction reaction in water. Electron tomography confirmed their internal porosity, and in situ transmission electron microscopy up to 1000 °C at ambient pressure showed that the superstructures are retained at up to 500 °C. The internal porosity is clearly advantageous for the high efficiency for the oxygen evolution reaction. For more detail see the Full Paper by M. Epple et al. on page 11048 ff.