Will Dysprosium do fine in just a vial or will it oxidize right now it’s in a vacuum sealed bag so I was wondering if I could take it out and put it in a vial without oil.
Microwave assisted synthesis is applied to prepare a dysprosium 2D‐MOF with simple carboxylato ligands, [Dy(MeCOO)(PhCOO)2] n (1). The Dy(3+) ions are arranged into nanosheets in a hexagonal pattern, stacked by van der Waals forces similar to those of graphene. The magnetically diluted MOF 1 d is a bifunctional 2D luminescent material with SIM properties.
Abstract
We report the microwave assisted synthesis of a bidimensional (2D) MOF of formula [Dy(MeCOO)(PhCOO)2] n (1) and its magnetically diluted analogue [La0.9Dy0.1(MeCOO)(PhCOO)2] (1 d). 1 is a 2D material with single‐ion‐magnet (SIM) behaviour and 1 d is a multifunctional, magnetic and luminescent 2D material. 1 can be exfoliated into stable nanosheets by sonication.
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Fully owned and operated by Northern Minerals (NOURF), with a small section also held with Australian uranium mining company, Toro Energy (TOEYF).
There are so far seven known deposits at the Browns Range Project; due to the Project's size, several areas are yet to be explored. The main focus of the project is dysprosium: a rare earth element that is an essential ingredient in long-lasting magnets that are effective under extreme conditions. They are crucial in the production of EV's and wind turbines, radiation detection equipment, and refractive glass material (used in AR/smart glasses and for automotive heads up displays).
The project began producing heavy rare earth carbonate in 2018 as part of a pilot project that is scheduled to continue until late 2021, at which time the project will reach full production. At this point, Northern Minerals will be providing mixed rare earth carbonate, individual RE oxides, and DyFe metals to the market. The MREC will be produced at the project while the other two products will be produced via agreements with other companies. NM has reached an agreement with thyssenkrupp Materials Trading GmbH (TYEKF), a German steel and materials company, for the mixed carbonates. Note, as far as I can tell, this will be thyssenkrupp's first foray into REE's.
A one-dimensional arrangement of single-molecule magnets (SMMs), which are a partially oxidized dysprosium(III) phthalocyaninato double-decker complexes, [DyPc2]Ix, was synthesized in the Communication by Keiichi Katoh, Masahiro Yamashita et al. (DOI: 10.1002/anie.202102666) by using electro-oxidation and chemical oxidation. The results of spectrophotometric analysis on [DyPc2]Ix are consistent with the Drude model, which theoretically explains the optical response of the metal. Since conductivity was observed at temperatures lower than the spin blocking temperature (TB), magnetoresistance (MR) effects observed as magnetic hysteresis were observed for the SMM. Our strategy may pave the way for the construction of electro-conductive SMM as spin valves.
https://ift.tt/2RXIJMK
The first f‐block ‐[1]ruthenocenophane complexes are reported and their dynamic magnetic properties are compared to those of their ferrocenophane congeners, which can be considered axially compressed analogues. Axial elongation affects the barrier of magnetization reversal for Dy3+ (increase) and Tb3+ (decrease) differently. These opposing trends are rationalized by ab initio computations.
Abstract
We report the first f‐block‐ruthenocenophane complexes 1 (Dy) and 2 (Tb) and provide a comparative discussion of their magnetic structure with respect to earlier reported ferrocenophane analogues. While axial elongation of the rare trigonal‐prismatic geometry stabilizes the magnetic ground state in the case of Dy3+ and results in a larger barrier to magnetization reversal (U ), a decrease in U is observed for the case of Tb3+.
https://ift.tt/35z4CVh
Journal of the American Chemical SocietyDOI: 10.1021/jacs.9b10584
https://ift.tt/2ttwQl9
The single‐molecule magnets (SMMs) [Cp′2Dy(μ ‐X)]2 (Cp′=cyclopentadienyltrimethylsilane anion; X=CH3−, Cl−, Br−, =I−) are investigated. For the first time, the magnetic easy axes of dysprosium metallocene SMMs are experimentally determined, confirming that they are oriented perpendicular to the equatorial plane which is made up of dysprosium and bridging atoms.
Abstract
We investigate a family of dinuclear dysprosium metallocene single‐molecule magnets (SMMs) bridged by methyl and halogen groups [Cp′2Dy(μ ‐X)]2 (Cp′=cyclopentadienyltrimethylsilane anion; 1 : X=CH3−; 2 : X=Cl−; 3 : X=Br−; 4 : X=I−). For the first time, the magnetic easy axes of dysprosium metallocene SMMs are experimentally determined, confirming that the orientation of them are perpendicular to the equatorial plane which is made up of dysprosium and bridging atoms. The orientation of the magnetic easy axis for 1 deviates from the normal direction (by 10.3°) due to the stronger equatorial interactions between DyIII and methyl groups. Moreover, its magnetic axes show a temperature‐dependent shifting, which is caused by the competition between exchange interactions and Zeeman interactions. Studies of fluorescence and specific heat as well as ab initio calculations reveal the significant influences of the bridging ligands on their low‐lying exchange‐based energy levels and, consequently, low‐temperature magnetic properties.
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Translate it ;)
Closest match I could find
Disclaimers:
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There is no such thing as zero emissions energy.
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There is no such thing as negative zero emissions energy aka BECCS.
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Solar and wind energy products only last 30 years.
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Solar and wind are very very difficult to recycle.
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To close 1 gigawatts of fossil energy, we need 10 gigawatts of solar/wind power.
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That's 10 to 1 rated energy output.
link: http://www.nature.com/nclimate/journal/v2/n6/full/nclimate1451.html?WT.ec_id=NCLIMATE-201206
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Stefan Rahmstorf says we need 0% emissions by 2060 for 2° C.
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BeezelyBillyBub says there is no zero carbon energy.
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Kevin Anderson says we have a 5% chance of success.
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BeezelyBillyBub says we have a 95% chance of failure.
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James Hansen says 2° C is a disaster.
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BeezelyBillyBub says 2° C = billions dead.
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The IEA projects 100% increased energy demand by 2060.
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We need 10X more rated solar/wind power to close 1 fossil plant says Nature magazine.
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We have to double energy production, cut emissions 100% and convert 80% of our energy use to electricity at 10X its rated power output.
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100% renewable energy takes 70 years says Vaclav Smil.
That means double energy, zero emissions, convert 80% of power use, at 10 times the rated power, at double the time allowed, for a 5% chance of success, where success = disaster.
- And we have to do that while drought storm fire and flood destroy economic equity, and several planetary boundaries are exceeded.
link: https://www.reddit.com/r/collapse/comments/311m7d/collapse_data_cheat_sheet/
Boundaries
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The US will see a 15-40% more regional rain/snows, with up to 80% more volumes.
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Yet 25% of land is predicted to be drier.
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The world emits 40 gigatons of carbon per year.
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James Hansen says with 0% reductions, we have to remove 32 gigatons per year up to 2100.
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Faulty climate models and inaction means climate change will be worse than thought.
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The Amazon has had 3 super extreme droughts in 12 years, with the last one the worst.
link: http://www.truth-out.org/news/item/43067-climate-change-2017-what-happened-and-what-it-means
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When you look at a chart of all the energy used in all the world, the solar/wind segment of the chart is not clearly visible and is 1-3% of total world energy use.
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Lithium batteries are 95% nickel and iron. Battery sales projections are through the roof.
link: https://www.bing.com/images/search?q=renewable%20energy%20battery%20sales%20projections&qs=n&form=QBIR&sp=-1&pq=re
... keep reading on reddit ➡We report the first f‐block‐ruthenocenophane complexes 1 (Dy) and 2 (Tb) and provide a comparative discussion of their magnetic structure with respect to earlier reported ferrocenophane analogues. While axial elongation of the rare trigonal‐prismatic geometry stabilizes the magnetic ground state in the case of Dy 3+ and results in a larger barrier to magnetization reversal ( U ), a decrease in U is observed for the case of Tb 3+ .
https://ift.tt/35z4CVh
Uniaxial magnetic anisotropy is an essential property that governs the performance of dysprosium metallocene single‐molecule magnets (SMMs). Determining this property using experimental methods is necessary and important as it provides direct information vital to the understanding of the magneto‐structural correlation and a valuable reference for theoretical analysis, but has been proved extremely challenging. Herein, we investigate a family of dinuclear dysprosium metallocene SMMs bridged by the methyl and halogen groups [Cp’ 2 Dy( μ ‐X)] 2 (Cp’ = cyclopentadienyltrimethylsilane anion; 1 : X = CH 3 − ; 2 : X = Cl − ; 3 : X = Br − ; 4 : X = I − ). For the first time, the magnetic easy axes of dysprosium metallocene SMMs are experimentally determined, confirming that the orientation of them are perpendicular to the equatorial plane. While the orientation of magnetic easy axis for 1 deviates from the normal direction (10.3°), due to the stronger equatorial interactions between Dy III and methyl groups. Moreover, its magnetic axes show a temperature‐dependent shifting, which is caused by the competition between the exchange interactions and Zeeman interactions. The fluorescence, specific heat studies and ab initi o calculations reveal the significant influences of the bridging ligands on their low‐lying exchange‐based levels and consequently low‐temperature magnetic properties. This work proves the role of equatorial interactions on the magnetic anisotropy and provides insights to design high‐performance dysprosium metallocene SMMs.
https://ift.tt/2ycmSre
