Rare earth orthoniobate photochromics with self-activated upconversion emissions for high-performance optical storage applications

2021 ◽  
Vol 9 (39) ◽  
pp. 13841-13850
Author(s):  
Zhen Zhang ◽  
Lingju Guo ◽  
Haiqin Sun ◽  
Dengfeng Peng ◽  
Hua Zou ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Performance ◽  
Optical Storage ◽  
Upconversion Emissions ◽  
Storage Properties

Novel self-activated upconversion photochromics exhibit high-performance optical storage properties.

scholarly journals Intrinsically weak magnetic anisotropy of cerium in potential hard-magnetic intermetallics

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Anna Galler ◽  
Semih Ener ◽  
Fernando Maccari ◽  
Imants Dirba ◽  
Konstantin P. Skokov ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Magnetic Anisotropy ◽  
High Performance ◽  
Kondo Effect ◽  
Quantitative Description ◽  
Many Body ◽  
Heavy Rare Earth Elements ◽  
Fe Intermetallics ◽  
Full Temperature

AbstractCerium-based intermetallics are currently attracting much interest as a possible alternative to existing high-performance magnets containing scarce heavy rare-earth elements. However, the intrinsic magnetic properties of Ce in these systems are poorly understood due to the difficulty of a quantitative description of the Kondo effect, a many-body phenomenon where conduction electrons screen out the Ce-4f moment. Here, we show that the Ce-4f shell in Ce–Fe intermetallics is partially Kondo screened. The Kondo scale is dramatically enhanced by nitrogen interstitials suppressing the Ce-4f contribution to the magnetic anisotropy, in striking contrast to the effect of nitrogenation in isostructural intermetallics containing other rare-earth elements. We determine the full temperature dependence of the Ce-4f single-ion anisotropy and show that even unscreened Ce-4f moments contribute little to the room-temperature intrinsic magnetic hardness. Our study thus establishes fundamental constraints on the potential of cerium-based permanent magnet intermetallics.

A novel metal–organic framework derived carbon nanoflower with effective electromagnetic microwave absorption and high-performance electrochemical energy storage properties

2021 ◽  
Author(s):  
Liwei Zhu ◽  
Ning Liu ◽  
Xincheng Lv ◽  
Ziqiu Zhang ◽  
Liangmin Yu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Microwave Absorption ◽  
High Performance ◽  
Metal Organic Framework ◽  
Electrochemical Energy Storage ◽  
Carbon Nanomaterial ◽  
Energy Storage Properties ◽  
Metal Organic ◽  
Storage Properties ◽  
Electrochemical Energy

A novel carbon nanomaterial with unique morphology was prepared and proven to be an effective material for EMWA and electrochemical energy storage.

Nitrogen storage properties based on nitrogenation and hydrogenation of rare earth–iron intermetallic compounds R2Fe17 (R=Y, Ce, Sm)

1999 ◽  
Vol 288 (1-2) ◽  
pp. 141-146 ◽  
Author(s):  
Masahiro Itoh ◽  
Ken-ichi Machida ◽  
Hiroharu Nakajima ◽  
Kazuhiro Hirose ◽  
Gin-ya Adachi
Keyword(s):  
Rare Earth ◽  
Intermetallic Compounds ◽  
Nitrogen Storage ◽  
Iron Intermetallic ◽  
Storage Properties

HDDR Process for the Production of High Performance Rare-Earth Magnets

ChemInform ◽  
2006 ◽  
Vol 37 (15) ◽  
Author(s):  
Satoshi Sugimoto ◽  
David Book
Keyword(s):  
Rare Earth ◽  
High Performance

Extraordinary energy storage performance and thermal stability in sodium niobate-based ceramics modified by the ion disorder and stabilized antiferroelectric orthorhombic R phase

2021 ◽  
Author(s):  
Ruirui Kang ◽  
Zepeng Wang ◽  
Weijie Yang ◽  
Xiaopei Zhu ◽  
Peng Shi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electric Vehicles ◽  
High Performance ◽  
Hybrid Electric Vehicles ◽  
Sodium Niobate ◽  
Storage Efficiency ◽  
Storage Performance ◽  
Energy Storage Properties ◽  
Energy Storage Efficiency ◽  
Storage Properties

Developing high-performance dielectric capacitors is essential to meet the growing demands of hybrid electric vehicles and high-power applications. The energy storage efficiency and the temperature-variant energy storage properties should be...

Critical minerals demand will boost Canadian mining

2021 ◽  
Keyword(s):  
Supply Chain ◽  
Rare Earth ◽  
Electric Vehicle ◽  
Carbon Emissions ◽  
High Performance ◽  
Commodity Prices ◽  
Alternative Source ◽  
Content Type ◽  
The Us ◽  
Critical Minerals

Significance Although low commodity prices deterred investment in recent years, this is changing as the market rallies. The creation of a regional electric vehicle (EV) supply chain straddling the Canada-US border has the potential to transform the Canadian mining sector while loosening China’s grip on the minerals used in high-performance batteries. Impacts Canada is the world’s eighth-largest cobalt producer and has significant copper, graphite and rare earth deposits. Fortune Minerals, which is developing a cobalt mine in Northwest Territories, has held funding talks with the US Export/Import Bank. First Cobalt is building North America’s only cobalt refinery to give battery makers an alternative source to the DRC. Several of the country’s mines are using cutting-edge technologies to reduce their carbon emissions.

Sign in / Sign up

Export Citation Format

Share Document