2018-1-31 · The comparative study using nanometric Rh overlayer catalysts deposited on a Fe−Cr−Al metal foil via two different dry processes, pulsed AP and r.f. magnetron sputtering, was performed. As-prepared metal foil samples showed similar Rh overlayers with 7 nm-thickness and full coverage on the surface of the metal foils.
2016-7-8 · The number of surface Rh sites for the foil samples was calculated using geometric areas. For the pure Rh metal foil, the edge areas accounted for 9.6% of the total area. The number of surface Rh sites for the powder catalyst was determined by CO chemisorption measurement at 50 °C based on 2:1 stoichiometry between chemisorbed CO and surface Rh.
For a clean metal surface, the values are well established and should depend only on orientation, but in practice Φ may vary about 1 eV, depending on surface conditions. In the metal bulk structure, because electronic conductivity is large, the electron density is homogeneously distributed throughout space to cancel the positive charge of ions ...
Enhanced Rh-anchoring on the composite metal phosphate Y0.33Zr2(PO4)(3) in three-way catalysis All of the authors contributed to the writing of this manuscript. All of the authors have approved the final version of the manuscript.Electronic supplementary information (ESI) available: Light-off characteristics in a simulated TWC reaction, FT-IR for adsorbed CO, and XRD.
[ハイライト]  [・・]  2019 Dynamics of the Lattice Oxygen in a Ruddlesden-Popper-type Sr 3 Fe 2 O 7-δ Catalyst during NO Oxidation, Kazuki Tamai, Saburo Hosokawa, Kenya Onishi, Chikara Watanabe, Kazuo Kato, Hiroyuki Asakura, Kentaro Teramura, Tsunehiro Tanaka, ACS Catal., 10, 2528-2537 (2020).
2021-5-16 · A nanometric Rh overlayer on a metal foil surface as a highly efficient three-way catalyst Satoshi Misumi, Hiroshi Yoshida, Satoshi Hinokuma et al. Pulsed arc-plasma (AP) deposition of an Rh overlayer on an Fe–Cr–Al foil produced a composite material that exhibited high activity for automotive three-way .
2021-5-20 · Fig. 1 Apex of a curved Rh crystal as a single catalytic particle. (A) SEM micrograph of the Rh specimen with a crystallographic net as overlayer (radius of the hemispherical apex 650 nm).The inset shows the corresponding FEM micrograph with nanofacets indicated. (B) schematics of the experiment: electrons, field-emitted from the sample surface, create a projection image on the screen.
Download tmpEFC7.tmp... The 9th Asia-Pacific Microscopy Conference(APMC9) in conjunction with the 39th Annual Meeting of the Korean Society of Microscopy November 02(SUN) ~ 07(FRI), 2008 Jeju, Korea Organized by The Korean Society of Microscopy (KSM) Under the auspices of The International Federation of Societies for Microscopy (IFSM) The Committee of Asia Pacific Societies for Microscopy ...
A tip induced cleaning of the surface in the course of continuous scanning results in a very clean surface accompanied with a reduction of the friction force by a factor of up to 4. The contamination is adhering stronger to hydrogenated regions, but once cleaned, the frictional behavior is the same on pristine and hydrogenated graphene.
Thickness dramatically affects the functionality of coatings. Accordingly, the techniques in use to determine the thickness are of utmost importance for coatings research and technology. In this review, we analyse some of the most appropriate methods for .