Breaking Long-Range Order in Iridium Oxide by Alkali Ion for Efficient Water Oxidation.
Journal of the American Chemical Society, 2019 Oxygen electrochemistry plays a critical role in clean energy technologies such as fuel cells and electrolyzers, but the oxygen evolution reaction (OER) severely restricts the efficiency of these devices due to its slow kinetics.
Jiajian Gao +11 more
semanticscholar +1 more source
Angewandte Chemie International Edition, 2003 Electrons in chains: A novel metallic chain made up of six iridium atoms (see picture) with an average oxidation state of +1.33 has been found in the complex HH,HT,HH-[Ir6(μ-OPy)6(I)2(CO)12] (Opy=2-pyridonate, H=head, T=tail). This complex provides a new link in the electronic sequence connecting dinuclear IrI and IrII complexes.
Tejel, Cristina +5 more
openaire +4 more sources
Low-cost machine learning approach to the prediction of transition metal phosphor excited state properties [PDF]
arXiv, 2022 Photoactive iridium complexes are of broad interest due to their applications ranging from lighting to photocatalysis. However, the excited state property prediction of these complexes challenges ab initio methods such as time-dependent density functional theory (TDDFT) both from an accuracy and a computational cost perspective, complicating high ...
arxiv
Globally distributed iridium layer preserved within the Chicxulub impact structure
Science Advances, 2021 The preservation of the iridium-rich layer within the Chicxulub crater captures the timing of the K-Pg boundary events. The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity ...
S. Goderis +31 more
semanticscholar +1 more source
Superconductivity in Ca10(Ir4As8)(Fe2As2)5 with Square-Planar Coordination of Iridium [PDF]
Scientific Reports 3 (2013) 3101, 2013 We report the unprecedented square-planar coordination of iridium in the iron iridium arsenide Ca10(Ir4As8)(Fe2As2)5. This material experiences superconductivity at 16 K. X-ray photoemission spectroscopy and first- principles band calculation suggest Ir(II) oxidation state, which yields electrically conductive Ir4As8 layers. Such metallic spacer layers
arxiv +1 more source
Smartphone-Based pH Sensor for Home Monitoring of Pulmonary Exacerbations in Cystic Fibrosis. [PDF]
, 2017 Currently, Cystic Fibrosis (CF) patients lack the ability to track their lung health at home, relying instead on doctor checkups leading to delayed treatment and lung damage.
Conrad, Douglas +5 more
core +2 more sources
Nature CommunicationsAlthough the acidic oxygen evolution reaction (OER) plays a crucial role in proton-exchange membrane water electrolysis (PEMWE) devices, challenges remain owing to the lack of efficient and acid-stable electrocatalysts.
Hui Su +8 more
semanticscholar +1 more source
High-pressure formation and stabilization of iridium hydrides [PDF]
, 2013 A class of iridium hydrides, IrH_x (x=0.5, 1-4, 6), is calculated at ab-initio level using the DFT. A number of hydrides are predicted to stabilize in the excess hydrogen environment and upon compression. The threshold pressure for thermodynamical stabilization is calculated to ~5 and ~14 GPa at which, respectively, a trihydride (P6_3mc) and a ...
arxiv +1 more source
Substrate patterning using regular macroporous block copolymer monoliths as sacrificial templates and as capillary microstamps [PDF]
Small 2018, 14, 1801452, 2018 Polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) monoliths containing regular arrays of macropores (diameter ~1.1 microns, depth ~700 nm) at their surfaces are used to pattern substrates by patterning modes going beyond the functionality of classical solid elastomer stamps.
arxiv +1 more source
Identification of the byproducts of the oxygen evolution reaction on rutile-type oxides under dynamic conditions [PDF]
, 2014 Peer ...
Cuesta, A. +3 more
core +1 more source