Results 71 to 80 of about 12,760 (267)

Strain‐Directed Ru Redistribution to Form RuO2/Pt Mosaic Heterointerfaces for Acid‐Stable Water Oxidation

Advanced Energy Materials, EarlyView.
Strain‐driven Ru inward migration creates confined RuO2/Pt mosaic heterointerfaces within a PtNi multiframe. These interfaces enable redox‐asymmetric Pt–Ru coupling that stabilizes Ru4+, suppresses lattice oxygen participation, and promotes highly durable acidic oxygen evolution.
Yeji Park, Doyeop Kim, Jungho Kim, Ho Yeon Jang, Minseon Cha, Subeen Lee, Tae Kyung Lee, Taekyung Kim, Hionsuck Baik, Jinwon Choi, Taehyun Kwon, Seoin Back, Sung Jong Yoo, Kwangyeol Lee   +13 more
wiley   +1 more source

Pseudorutile-leucoxene-quartz ores of Timan ‒ a new genetic type of titanium raw materials: prospects for industrial development

Georesursy
The two largest deposits of Russia – Yaregskoye and Pizhemskoye belong to the same genetic type; hydrothermal-metamorphic indigenous deposits. They are located in the same Timan structure at a distance of no more than 230 km from each other. According to
A. B. Makeyev, S. G. Skublov, O. L. Galankina, E. A. Vasiliev, A. O. Krasotkina   +4 more
doaj   +1 more source

Complex Iridium Oxides Converge In Structure And Reactivity During Acidic Oxygen Evolution Electrocatalysis

Advanced Energy Materials, EarlyView.
Ir‐based double perovskites restructure during acidic oxygen evolution electrocatalysis through dissolution of non‐Ir cations and convergence toward IrOx active‐site motifs with similar structure and intrinsic activity across compositions. The identity of the dissolving cations controls dissolution and surface reconstruction kinetics, clarifying how ...
Harrison H. Lippie, Xun Zhan, Kevin C. Matthews, Arya M. Balasubramanian, Jamie H. Warner, Joaquin Resasco   +5 more
wiley   +1 more source

Atomic-resolution imaging of rutile TiO2(110)-(1 × 2) reconstructed surface by non-contact atomic force microscopy

Beilstein Journal of Nanotechnology, 2020
The structure of the rutile TiO2(110)-(1 × 2) reconstructed surface is a phase induced by oxygen reduction. There is ongoing debate about the (1 × 2) reconstruction, because it cannot be clarified whether the (1 × 2) structure is formed over a wide area ...
Daiki Katsube, Shoki Ojima, Eiichi Inami, Masayuki Abe   +3 more
doaj   +1 more source

Implantation‐On‐Chip: An AI‐Based Platform for Monitoring the Embryo Trophoblast–Endometrial Stroma Cross Talk With Xenobiotics Interference

Advanced Intelligent Systems, EarlyView.
We present a novel AI‐integrated implantation‐on‐chip platform that enables mimicking and monitoring the maternal–fetal interactions at the early phases of human embryo implantation with high spatiotemporal resolution. The complexity of the trophoblast invasion process was addressed by conducting the analysis at global (rate of invasion) and local ...
Joanna Filippi, Valentina Lacconi, Arianna Mencattini, Micol Massimiani, Dolores Lobresca, Gaia Posanzini, Alessia Riccardi, Paola Casti, Michele D’Orazio, Gianni Antonelli, Giorgia Curci, Luisa Campagnolo, Eugenio Martinelli   +12 more
wiley   +1 more source

Ecological and Health Risks from Trace Elements Contamination in Soils at the Rutile Bearing Area of Akonolinga, Cameroon

Applied Sciences
This study evaluates the concentrations of trace elements (TEs) in soils from the rutile deposit area of Akonolinga, Cameroon, and analyzes the associated health risks. A total of 25 samples were analyzed using flame atomic absorption spectrometry (FAAS).
Fayette Kitcha Sime, Dieu Souffit Gondji, Ilsa Rosianna, Eka Djatnika Nugraha, Oumar Bobbo Modibo, Chutima Kranrod, Yasutaka Omori, Naofumi Akata, Masahiro Hosoda, Saïdou, Shinji Tokonami   +10 more
doaj   +1 more source

Zur Rolle von Wasser bei der CO2‐Reduktion an defektreichem TiO2 bei niedrigen Temperaturen

Angewandte Chemie, EarlyView.
Unsere Ergebnisse unterstreichen das Potenzial von reduziertem Titandioxid als edelmetallfreiem Katalysator zur Aktivierung von CO2 und zeigen in situ die Reaktion von CO2 auf defektreichem TiO2 unter Verwendung von synchrotronbasiertem NAP‐XPS von Raumtemperatur bis 700 K.
Justin Klimek, Filip Hallböök, Niko Kruse, Fangliang Li, Sara Blomberg, Katharina Al‐Shamery, Lars Mohrhusen   +6 more
wiley   +1 more source

A Density Functional Tight Binding Study of Acetic Acid Adsorption on Crystalline and Amorphous Surfaces of Titania

Molecules, 2015
We present a comparative density functional tight binding study of an organic molecule attachment to TiO2 via a carboxylic group, with the example of acetic acid.
Sergei Manzhos, Giacomo Giorgi, Koichi Yamashita   +2 more
doaj   +1 more source

Role of Water in Low‐Temperature CO2 Reduction at Defect‐Rich TiO2

Angewandte Chemie International Edition, EarlyView.
Our results highlight the potential of reduced titania as a noble metal‐free CO2 activation catalyst and show the activation of CO2 on highly defective TiO2 using in situ synchrotron‐based NAP‐XPS from room temperature to 700 K. The distribution of surface intermediates can be decoded as a simultaneous population of reaction routes, revealing water (OH)
Justin Klimek, Filip Hallböök, Niko Kruse, Fangliang Li, Sara Blomberg, Katharina Al‐Shamery, Lars Mohrhusen   +6 more
wiley   +1 more source

Synthesis of bio-active titanium oxide coatings stimulated by electron-beam plasma

Open Chemistry, 2014
Advantages of the electron-beam plasma (EBP) for production of bioactive titanium oxide coatings were experimentally studied. The coatings were synthesized in EBP of oxygen on the surface of plane titanium substrates.
Vasilieva Tatiana, Sokolov Igor, Sigarev Andrey, Tun Win Aung   +3 more
doaj   +1 more source