More recently, rare-earth (RE)-based SACs have emerged as a new frontier in photo/electrocatalysis owing to their unique electronic structure arising from the spin-orbit coupling of the 4f and valence orbitals, unsaturated coordination environment, and unique behavior as charge-transport bridges. However, a systematic review on the role of the ...
Single-atom catalysts (SACs) provide well-defined active sites with atom utilization, and can be prepared using a wide range of support materials. Therefore, they are attracting global attention, especially in the fields of energy conversion and storage. To date, research has focused on transition-metal and precious-metal-based SACs.
Recent advances for the growth of incongruent RIG single crystals are summarized. The strategies for the modulation of optical and magneto-optical properties are analyzed. Ongoing challenges and prospects for RIG single crystals are proposed. R 3 Fe 5 O 12 (RIG) crystals are the most desirable elements for magneto-optical isolators in …
Rare earth metals are strategic resources with potential applications in optics, metallurgy and catalysis. In recent years, single-atom site catalysts (SASCs) have attracted increasing attention owing to their atom efficiency and unique catalytic performances.
The decreased adsorption energy of TiO 2 decorated with rare-earth single atoms enhanced the adsorption capability to O-xylene.. Improved charge separation was ascribed to charge transfer channel between rare-earth atom and O atom. • TiO 2 decorated with rare-earth single-atom exhibited an enhanced photocatalytic …
Rare earth elements play an important role in various fields, which has attracted increasing interest from the scientific community. Meanwhile, single-atom catalysts show huge advantages in many aspects compared with traditional nanomaterials due to their atomic utilization efficiency. Thus, the combina Nanoscale Horizons, Nanoscale, and …
INTRODUCTION. Rare-earth (RE) elements possess intriguing chemical and physical properties because of their unique electron structures [].The shielded nature of 4f electrons in RE atoms leads to highly coherent 4f-4f optical and spin transitions [4, 5], which makes rare-earth composites excellent candidates in the fields of luminescent [], …
Therefore, high entropy rare earth zirconate ceramics show lower thermal conductivity than single component rare earth zirconate. In addition, the dual-phase structure is at the critical point of ordered-disordered phase transition, and there are obvious lattice distortion and lattice relaxation, which also reduces the thermal conductivity of ...
The single-phase formation possibility was theoretically analyzed from the aspects of size-effect parameter δ of the designed compositions. All as-obtained ceramics possessed single face-centered …
Single-atom catalysts (SACs) provide well-defined active sites with atom utilization, and can be prepared using a wide range of support materials. …
Sun C T, Xue D F. Pulling growth technique towards rare earth single crystals. Sci China Tech Sci, 2018, 61: 1295–1300. Xue D, Sun C, Chen X. Hybridized valence electrons of 4f 0-14 5d 0-1 6s 2: The chemical bonding nature of rare earth elements. J Rare Earths, 2017, 35: 837–843.
The introduced rare-earth single-atom, as a Lewis acid site, boosts the migration of OH − inside the alkaline environment and gives rise to an increased local OH − concentration around the Pt-Ln sites, thereby improving the hydrogen oxidation ability of metallic Pt.
Liu, J. et al. Rare Earth single-atom catalysts for nitrogen and carbon dioxide reduction. ACS Nano 14, 1093–1101 (2020). Article CAS PubMed Google Scholar
Extracting rare earth elements (REEs) from wastewater is essential for the growth and an eco-friendly sustainable economy. However, it is a daunting challenge to separate individual rare earth ...
Abstract. Rare-earth (RE) scandate single crystals ranging from NdScO 3 to DyScO 3 were grown by the conventional Czochralski technique. The crystals were found to have a non-stoichiometric composition caused by RE-deficiency on the A-site of the distorted perovskite structure.
Rainbow Rare Earths. Just before the Covid-19 pandemic took hold, South African mining veteran George Bennett was offered the opportunity to bid for two waste piles of gypsum, left over from ...
rare-earth element, any member of the group of chemical elements consisting of three elements in Group 3 (scandium [Sc], yttrium [Y], and lanthanum [La]) and the first extended row of elements below …
To announce the formation of Motown's rock label, Rare Earth Records released Rare Earth's Get Ready album in a promotional box set alongside four other albums which included Pretty Things' S. F. Sorrow, as well as albums by Love Sculpture, Rustix and the Messengers. The new recording of "Get Ready" was edited down to 2:46 for a single, …
Individually addressed rare earth atoms in solid crystals are an emerging platform for quantum information processing. Here the authors demonstrate a key requirement, by realizing single-shot ...
The La-N charge bridges are found to function as the key active center for CO2 activation, rapid COOH* formation, and CO desorption and a mechanistic understanding into the utilization of rare-earth single-atoms in photocatalysis for solar energy conversion is provided.
A catalyst with a high density of rare-earth single Er atoms supported on a carbon nitride nanotube (HD-Er 1 /CN-NT) is synthesized by an atom-confinement and coordination strategy (ACC). Experimental …
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To date, research has focused on transition-metal and precious-metal-based SACs. More recently, rare-earth (RE)-based SACs have emerged as a new frontier in photo/electrocatalysis owing to their ...
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Single-atom catalysts (SACs) have attracted much attention owning to their high catalytic properties. Herein, yttrium and scandium rare earth SACs are successfully …
Single-molecule magnets (SMMs) have attracted much attention due to their potential applications in molecular spintronic devices. Rare earth SMMs are considered to be the most promising for application owing to their large magnetic moment and strong magnetic anisotropy. In this review, the recent progress in rare earth SMMs represented …
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