これは、希土類元素に関する英語の世界中の出版物と特許の最新のセレクションです。多くの科学オンラインジャーナルの中から、希土類元素、スカンジウム、イットリウム、ランタン、セリウム、プラセオジム、ネオジム、プロメチウム、サマリウム、ユーロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、ツリウム、イッテルビウム、ルテチウム、希土類、希土類元素に分類され、焦点を絞っています。
Glass sheet with a cerium-containing crystalline phase
Patent published on the 2026-05-28 in WO under Ref WO2026111892 by CORNING INCORPORATED [US] (Lezzi Peter Joseph [us])
Abstract: A glass sheet including a glass phase including a glass composition; and a primary crystalline phase dispersed within the glass phase, the primary crystalline phase including cerium atoms, a majority of which have a +3 oxidation state. The primary crystalline phase can be aeschynite. A photovoltaic module including one or more photovoltaic cells; and a cover sheet including the glass sheet disposed between the one or more photovoltaic cells and an external environment. An architectural window in[...]
Our summary: The content describes a glass sheet with a cerium-containing crystalline phase. It outlines the integration of this glass sheet in photovoltaic modules and architectural windows. The primary crystalline phase can form during a heat treatment process.
cerium, crystalline phase, photovoltaic module, glass sheet
Patent
Scr catalysts
Patent published on the 2026-05-28 in WO under Ref WO2026109904 by JOHNSON MATTHEY PUBLIC LIMITED CO [GB] (Harris Matthew Eben [gb], Iacono Carmelo [gb])
Abstract: According to the present invention, there is provided a method for reducing N2O in the selective catalytic reduction (SCR) of NOX, in a gas mixture, comprising contacting the gas mixture with a source of ammonia, over a selective catalytic reduction catalyst comprising a zeolite comprising copper (Cu), cerium (Ce) and yttrium (Y), wherein the Cu to Ce to Y weight percentage ratio, based on the weight of the zeolite, is in the range of 1.0:1.0:0.5 to 5.0:5.0:3.0. There is also provided an SCR cat[...]
Our summary: A method for reducing N2O in SCR of NOX involves using a catalyst with a specific Cu, Ce, and Y ratio. The catalyst contains a zeolite structure. The invention includes the catalyst s use and an associated exhaust system.
SCR catalysts, N2O reduction, zeolite, ammonia
Patent
R-t-b based permanent magnet and method of manufacturing the same
Patent published on the 2026-05-28 in US under Ref US20260148884 by TDK CORP [JP] (Hayakawa Takuma [jp], Kondo Shingo [jp])
Abstract: An R-T-B based permanent magnet contains a rare earth element, Fe, Zr, Cu, B, C, O, and N. The magnet contains 28.50 mass % or more and 32.00 mass % or less rare earth element, 0.01 mass % or more and 0.50 mass % or less Zr, 0.04 mass % or more and 0.50 mass % or less Cu, 0 mass % or more and 0.60 mass % or less Al, 0 mass % or more and 0.80 mass % or less Ga, 0 mass % or more and 3.50 mass % or less Co, 0.88 mass % or more and 1.00 mass % or less B, 0.05 mass % or more and 0.12 mass % or less C[...]
Our summary: An R-T-B based permanent magnet includes specific mass percentages of rare earth elements and other materials. It specifies the composition limits for elements like Zr, Cu, Al, Ga, Co, B, C, O, and N. The manufacturing method focuses on achieving optimal magnetic properties through precise material ratios.
R-T-B, permanent magnet, rare earth element, manufacturing method
Patent
Systems and methods including electrochemically regenerated, oxidative leaching of target materials from sulfide minerals with nitrates
Patent published on the 2026-05-28 in WO under Ref WO2026112272 by DONOVAN JR BRIAN CHRISTOPHER [US] (West Alan [us], Yang Yilin [us], Xu Tongwei [us], Wang Zeyu [us], Chen Yu [us], Donovan Jr Brian Christopher [us])
Abstract: An electrochemically mediated, hydrometallurgical method is provided for extraction of nickel, zinc, lead, silver, molybdenum, and/or copper from sulfide minerals. These metal concentrates, such as pentlandite, pyrrhotite, pyrite, sphalerite, galena, Ag2S, MoS2, etc., are contacted with nitric acid and cerium(IV) nitrates, cerium(IV) methanesulfonate, and/or cerium(IV) sulfate, as oxidative leaching agents to preferentially leach the target metals contained therein. The strong oxidizing capacity[...]
Our summary: This method utilizes electrochemically regenerated cerium(IV) for oxidative leaching of metals from sulfide minerals. Target metals include nickel, zinc, lead, silver, molybdenum, and copper. The process allows for efficient recovery and recycling of cerium(IV) for further treatments.
electrochemical leaching, oxidative leaching, sulfide minerals, metal extraction
Patent
All-solid-state battery
Patent published on the 2026-05-28 in WO under Ref WO2026111067 by SAMSUNG ELECTRO MECH CO LTD [KR] (Kim Dongwon [kr], Kim Taehoon [kr], Keum Donghoon [kr], Kim Junhyeon [kr], Kim Han [kr])
Abstract: Provided is an all-solid-state battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer. The positive electrode layer includes a positive electrode active material comprising a core containing a lithium metal oxide and a surface layer formed on at least part of the core surface. The surface layer includes a first material containing at least one transition metal selected [...]
Our summary: The all-solid-state battery consists of a positive electrode layer, a negative electrode layer, and a solid electrolyte layer. The positive electrode includes a core of lithium metal oxide and a surface layer with transition metals. The surface layer also contains metals such as magnesium, aluminum, and titanium.
all-solid-state battery, solid electrolyte, positive electrode, lithium metal oxide
Patent
Aircraft component coating system
Patent published on the 2026-05-27 in EP under Ref EP4748970 by PRATT & WHITNEY CANADA [CA] (Saeed Ata [ca])
Abstract: A coating system for an aircraft component is described herein. The component includes a substrate having a surface for the application of the coating system. The coating system includes a diffusion barrier coating layer disposed on the substrate surface. A bond coating layer may be disposed on the diffusion barrier coating layer. The diffusion barrier coating layer may be formed from a first MCrAlX alloy, where M includes, for example, cobalt and X includes, for example, yttrium. The bond coati[...]
Our summary: A coating system for aircraft components includes a substrate with a diffusion barrier coating layer. The diffusion barrier is formed from a first MCrAlX alloy, while a bond coating layer may use a second MCrAlX alloy. Both layers can exhibit a microstructure containing gamma and beta phases.
coating system, aircraft component, diffusion barrier, MCrAlX alloy
Patent
Optical investigation of ultra-slow spin relaxation in 171Yb3+:Y2SiO5 single crystals
Published on 2026-03-10 by F Chiossi, A Tiranov, L Nicolas, D Serrano, F Montjovet-Basset, E Lafitte-Houssat, A Ferrier, S Welinski, L Morvan, P Berger, A Tallaire, M Afzelius and P Goldner @IOP SCIENCE
Abstract: We report a detailed investigation of spin relaxation dynamics in the rare-earth-doped crystal 171Yb:Y2SiO5, a promising platform for quantum memory based on atomic frequency combs. The population dynamics among the four ground-state hyperfine levels were studied in the 50 mK–6 K temperature range by optically modifying the spin populations and monitoring their return to thermal equilibrium via absorption spectroscopy. Below 1 K, population rethermalization occurs on timescales of several ho[...]
Our summary: The study investigates spin relaxation dynamics in 171Yb:Y2SiO5 single crystals for quantum memory applications. It reveals that population rethermalization occurs over hours below 1 K, influenced by spin-phonon interactions. The findings suggest optimal doping and temperature conditions for achieving long atomic frequency comb lifetimes.
spin relaxation, quantum memory, absorption spectroscopy, rare-earth-doped crystals
Publication
Methodologies, Challenges, and the Integration of Machine Learning (ML)
Published on 2026-02-03 by Rehan Ullah, Jason Daza, Asma Wederni, Lluisa Escoda, Joan Saurina, Joan-Josep Suol @MDPI
Abstract: The increasing demand and production of neodymium-iron-boron-based permanent magnets (NdFeB-PMs) for the electronics, energy sector, and automobile industries led to disposal consequences. The NdFeB-PMs contain a substantial amount of rare earth elements (REEs). Although China is the largest exporter of REEs to the world, it has applied some restrictive policies in terms of supply chain and taxes. To address such issues, this review systematically examines current recycling techniques, including[...]
Our summary: This review analyzes recycling techniques for neodymium-iron-boron permanent magnets and their environmental impact. It discusses the integration of Machine Learning to enhance leaching processes and addresses challenges in large-scale implementation. The findings highlight the need for technological innovation and policy initiatives to achieve sustainable recycling solutions.
Recycling, Machine Learning, Neodymium-Iron-Boron, Rare Earth Elements
Publication











