| 单词 | hydride |
| 例句 | Since then, researchers have made hydride superconductors that push closer and closer to operating at room temperature, but all of them work only under extreme pressures. Nature Retracts Controversial Room-Temperature Superconductor Study 2023-11-08T05:00:00Z Many candidates have been considered as possible hydrogen energy carries such as ammonia, formic acid, and metal hydrides. A potentially cheaper and 'cooler' way for hydrogen transport 2023-10-26T04:00:00Z Compounds such as metal hydrides or ammonia can store hydrogen chemically. Chemical cages could store hydrogen, expand use of clean-burning fuel 2023-09-27T04:00:00Z In recent years, materials known as hydrides have proved promising in the search for superconductors that work at warmer temperatures, although so far they all require crushing pressures. New Study Bolsters Room-Temperature Superconductor Claim 2023-06-23T04:00:00Z Hydrogen is key to the new material’s superconducting ability and to that of any hydride. Controversy Surrounds Blockbuster Superconductivity Claim 2023-03-10T05:00:00Z “This is the most detailed study of a hydride ever,” says Ashkan Salamat, a physicist at the University of Nevada, Las Vegas, and one of the study’s senior authors. ‘Revolutionary’ blue crystal resurrects hope of room temperature superconductivity 2023-03-08T05:00:00Z “Doping nitrogen into lutetium hydride is not that easy,” Dr. Dias said. A Room-Temperature Superconductor Discovery Aims to Overcome Resistance 2023-03-08T05:00:00Z Adding other elements to the hydrogen—creating a hydride structure—can increase the “chemical pressure,” reducing the need for external pressure and making superconductivity reachable in small laboratory vises called diamond anvil cells. ‘Something is seriously wrong’: Room-temperature superconductivity study retracted 2022-09-26T04:00:00Z However, Dr. Boeri said that while other hydrides fit with the standard theory of superconductivity, Dr. Dias’s substance does not. New Study Bolsters Room-Temperature Superconductor Claim 2023-06-23T04:00:00Z The material, described in a Nature paper published this week, could raise hopes for other hydrides that lower the pressure requirements still further. Controversy Surrounds Blockbuster Superconductivity Claim 2023-03-10T05:00:00Z Dias says Unearthly Materials, a company he and Salamat founded, is trying to commercialize the new hydride. ‘Revolutionary’ blue crystal resurrects hope of room temperature superconductivity 2023-03-08T05:00:00Z The boiling points of the heaviest three hydrides for each group are plotted in Figure 10.11. Chemistry 2019-02-14T00:00:00Z Measuring that effect in a diamond anvil cell is impractical, so experimentalists working with hydrides often measure a related quantity called “magnetic susceptibility.” ‘Something is seriously wrong’: Room-temperature superconductivity study retracted 2022-09-26T04:00:00Z Dr. Dias said it was hydrides that led him to the lutetium-hydrogen-nitrogen mixture. New Study Bolsters Room-Temperature Superconductor Claim 2023-06-23T04:00:00Z Because this measurement must be made while the superconducting hydride is in a diamond anvil cell, results contain background noise. Controversy Surrounds Blockbuster Superconductivity Claim 2023-03-10T05:00:00Z Once out of service, their nickel metal hydride batteries can be recycled and materials such as nickel and copper reintroduced into the battery supply chain, where they can supplement raw materials from mines. Redwood Materials welcomes Toyota to its EV battery recycling initiative 2022-06-21T04:00:00Z Metal hydrides are expensive but convenient sources of hydrogen, especially where space and weight are important factors. Chemistry 2019-02-14T00:00:00Z Hirsch, a firebrand who has criticized other hydride superconductivity claims, has made stronger accusations. ‘Something is seriously wrong’: Room-temperature superconductivity study retracted 2022-09-26T04:00:00Z So, hydride researchers have instead evaluated a property known as AC susceptibility, a measure of how much a material becomes magnetized in an applied magnetic field. Breakthrough or bust? Claim of room-temperature superconductivity draws fire 2021-10-21T04:00:00Z The new paper also provides a “recipe” for other researchers who want to synthesize the new hydride and test it themselves, but the authors have not shared existing samples of the material. Controversy Surrounds Blockbuster Superconductivity Claim 2023-03-10T05:00:00Z At the March meeting of the American Physical Society, he said he had preliminary evidence for a room-temperature hydride superconductor that is stable down to 20 GPa, less than one-tenth the pressure CSH required. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z The compounds formed are crystalline, ionic hydrides that contain the hydride anion, H−, a strong reducing agent and a strong base, which reacts vigorously with water and other acids to form hydrogen gas. Chemistry 2019-02-14T00:00:00Z At conferences this summer, Dias has presented claims of superconductivity in new hydride compounds. ‘Something is seriously wrong’: Room-temperature superconductivity study retracted 2022-09-26T04:00:00Z Hirsch, meanwhile, is mounting a broader attack: on claims for superconductivity in any hydride. Breakthrough or bust? Claim of room-temperature superconductivity draws fire 2021-10-21T04:00:00Z The material also contains relatively little hydrogen, even though this is the substance that theoretically gives hydrides their superconducting ability. Controversy Surrounds Blockbuster Superconductivity Claim 2023-03-10T05:00:00Z The first order of business will be to find other hydrides that superconduct at room temperature. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z Nitrogen oxides and nitrogen hydrides are also important substances. Chemistry 2019-02-14T00:00:00Z But he is confident that patient work of science, underpinned by painstaking replication, will sort the real promise of hydrides from the questionable claims. ‘Something is seriously wrong’: Room-temperature superconductivity study retracted 2022-09-26T04:00:00Z The result: the first ever evidence of the Meissner effect in hydrides, which the team calls “unambiguous evidence” that superconductivity in hydrides is real. Breakthrough or bust? Claim of room-temperature superconductivity draws fire 2021-10-21T04:00:00Z It could point to alternate theories for how superconductivity arises in hydride materials. Controversy Surrounds Blockbuster Superconductivity Claim 2023-03-10T05:00:00Z Over the next 3 years, Eremets and others boosted the Tc as high as 250 K in hydrides containing the heavy metal lanthanum. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z If the mass of the hydride was 0.0861 g, what is its molecular mass? Chemistry 2019-02-14T00:00:00Z Finally, the muons passed through an energy-absorbing medium made of lithium hydride or liquid hydrogen that reduced this spread by a process called ionization cooling. Muon colliders come a step closer 2020-02-04T05:00:00Z The team used the approach to calculate basic properties of the molecules hydrogen and lithium hydride, such as how their energy states vary with interatomic distance. Beyond quantum supremacy: the hunt for useful quantum computers 2019-10-01T04:00:00Z The chemical composition of the material also needs to be verified, because unwanted hydrides or hydroxides might have formed. Superconductivity seen in a non-magnetic nickel oxide 2019-08-27T04:00:00Z Dias adds that in some hydrides, the resistance may not behave as expected because the tiny samples in the diamond cell may be highly purified. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z What is the molecular formula for the hydride? Chemistry 2019-02-14T00:00:00Z The idea of using lithium hydride as a radiation shield in space is not entirely new; it was discussed back in the 1970s. Deep-Space Shielding 2019-06-08T04:00:00Z The common features of these hydrogen sulfide and lanthanum hydride superconductors are that they are rich in hydrogen and that superconductivity emerges only under pressures above about one million times atmospheric pressure. Superconductivity near room temperature 2019-05-21T04:00:00Z Crucially, these instruments offer a very high resolution, allowing light from helium hydride to be distinguished from signatures of other molecules at very similar wavelengths. Most ancient type of molecule in universe detected in space 2019-04-17T04:00:00Z The hydrides, he says, “show this is not true.” Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z The space agency used to rely on older battery types, like nickel-metal hydride or nickel hydrogen — the main type of battery used for storing energy on the ISS. NASA is prepared if a battery ever explodes in space 2018-08-17T04:00:00Z Lithium hydride shields might help you get to Mars in one piece, and set up a fledgling society when you get there. Deep-Space Shielding 2019-06-08T04:00:00Z The sample is squeezed between two diamonds and transforms into lanthanum hydride at high pressure. Superconductivity near room temperature 2019-05-21T04:00:00Z X-ray diffraction and Mössbauer spectroscopy study of fcc iron hydride FeH at high pressures and implications for the composition of the Earth’s core. Hydrogen-bearing iron peroxide and the origin of ultralow-velocity zones 2017-11-21T05:00:00Z But Dias and fellow hydride researchers are confident in their observations. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z As molecules go, beryllium hydride is puny—just two hydrogen atoms tacked onto a single beryllium atom. Quantum computer simulates largest molecule yet, sparking hope of future drug discoveries 2017-09-13T04:00:00Z Little, if any, space is taken up by the nickel metal hydride battery under the midrow chairs. Video Review: Toyota Highlander Hybrid Offers Room and Fuel Economy 2015-10-07T04:00:00Z The authors overcame these experimental challenges and uncovered crucial evidence that confirms the high-temperature superconductivity in lanthanum hydride compounds. Superconductivity near room temperature 2019-05-21T04:00:00Z Lithium-ion chemistry, which has largely replaced the earlier nickel metal hydride, which itself replaced nickel cadmium, is almost certain to be supplanted by something else. Nevada a Winner in Tesla’s Battery Contest 2014-09-04T04:00:00Z Researchers have reported success with both strategies, leading to two classes of hydrides with very different 3D structures. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z Other Toyota executives have told me over the years how the experience with the first all-electric RAV 4, which was powered by nickel hydride batteries, was also painful. Toyota Phasing Out Battery Deal With Tesla In Its Long Running Beef With Batteries 2014-05-19T04:00:00Z The catalytic mechanism is elucidated by the spectroscopic detection of iron hydride and amide intermediates. [Report] Amine(imine)diphosphine Iron Catalysts for Asymmetric Transfer Hydrogenation of Ketones and Imines 2013-12-04T22:56:21.447Z Drozdov et al. observed this isotope effect and found that, compared with the lanthanum hydride samples, the critical temperature in lanthanum deuteride samples is lower by almost exactly the amount predicted by the theory. Superconductivity near room temperature 2019-05-21T04:00:00Z The firm specialises in manufacturing the nickel-metal hydride batteries he designed, which are still used in hybrid vehicles, and also produces large thin, flexible sheets of solar panelling also invented by Mr Ovshinsky. Battery inventor Ovshinsky dies 2012-10-19T11:06:07Z Other theorists have predicted that hydrides such as calcium hydride or actinium hydride should superconduct at close to room temperature—and at a pressure considerably less than that needed for CSH. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z Of or containing acryl, the hypothetical radical of which acrolein is the hydride; as, acrylic acid. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z Toyota Motor Corp's Prius, which dominates the hybrid vehicle market, is powered by older nickel metal hydride battery technology. U.S. opening formal probe into GM Volt fire risk 2011-11-26T00:03:06Z But the hydrogen sulfide and lanthanum hydride experiments were motivated by computational results that anticipated both the necessary pressures and the resulting critical temperatures9,12. Superconductivity near room temperature 2019-05-21T04:00:00Z Toyota Motor Corp's Prius, which dominates the hybrid market, is powered by older nickel metal hydride battery technology. Regulators probe EV batteries after Chevy Volt fire 2011-11-12T01:34:02Z He recently formed a company called Unearthly Materials to manufacture and commercialize hydride superconductors, if any can be found to work near ambient pressures. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z Conventional lithium-ion or nickel metal hydride rechargeable batteries contain active material that is placed into a thin film. New Structure Allows Lithium-Ion Batteries to Get a Quicker Charge 2011-03-22T17:15:00.317Z We only bring in nickel metal hydride batteries, which are relatively benign environmentally. Selling to the poor 2011-03-08T00:27:01Z Instead, those measurements might be explained by a smaller population of red dwarfs that happen to be richer in sodium and iron hydride than red dwarfs in the Milky Way. It's Really Full of Stars 2010-12-01T21:17:00Z Today's hybrid car batteries are often made with nickel metal hydride. How and Why: Graphene seems valuable for computers, batteries and other uses 2010-10-25T19:56:00Z That’s why proving superconductivity in hydrides—which show promise for superconductivity at lower pressures—is a much more important challenge. Thanks to a bit of diamond smashing, practical superconductivity could be close to reality 2021-08-26T04:00:00Z By contrast, an auto lead-acid battery produces a wimpy 25 to 40 Wh/kg, and nickel-metal hydride of the sort commonly used in hybrid cars is about 40 to 90. Talk about battery life! Old device, new tricks. 2009-10-20T04:00:00Z Storing hydrogen as a gas or liquid in a vessel containing “reversible” crystalline metal hydrides is one way to carry it around. Tech.view: Hydrogen tries again 2010-04-23T07:52:00Z The nickel-metal hydride battery packs used in most hybrids costs thousands of dollars alone, adding a hefty premium onto any sedan. Reasons Not To Buy A Hybrid 2010-03-31T21:00:00Z Compounds.—Arsenic forms two hydrides:—The dihydride, As2H2, is a brown velvety powder formed when sodium or potassium arsenide is decomposed by water. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" Now and then he looked through the thick glass ports, and he saw the green mist of boron hydride as fuel throbbed slowly into the rocket's tanks. The Scarlet Lake Mystery In the same year Berzelius discovered selenium in a deposit from sulphuric acid chambers, his masterly investigation including a study of the hydride, oxides and other compounds. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" One gram of lithium hydride would give nearly fifty-eight kilowatt-hours of energy in one blast. Unwise Child It forms a hydride, BH3, and combines directly with the elements of the chlorine family. An Elementary Study of Chemistry Compounds.—Calcium hydride, obtained by heating electrolytic calcium in a current of hydrogen, appears in commerce under the name hydrolite. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Horrified, Rick saw a fireman, clumsy in his protective suit, trip and fall before the oncoming flood of flaming boron hydride. The Scarlet Lake Mystery Similarly magnesium and hydrogen combine as magnesium hydride and calcium and hydrogen form calcium hydride. The New Heavens Now, suppose a man had a pair of tweezers small enough to pick up a single molecule of lithium hydride and pinch the two nuclei together. Unwise Child Or let it be hydride of amyl, of the same length, and at a pressure of 6.6 inches. Scientific American Supplement, No. 365, December 30, 1882 Another source of hydrogen originating with the electric furnace is "hydrolith," which consists of calcium hydride. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries With an unstable fuel like boron hydride, that made the difference. The Scarlet Lake Mystery The arsenic was evolved as hydride and recognized by the usual reactions, while the antimony was mainly deposited as metal upon the cathode. Scientific American Supplement, No. 810, July 11, 1891 The presence of free hydrogen is nearly always accompanied by silicon hydride formed by the combination of the nascent hydrogen with the silicon in the carbide. The Project Gutenberg Encyclopedia Volume 1 of 28 The same was found true of hydride of amyl. Scientific American Supplement, No. 365, December 30, 1882 The phosphoretted hydrogen and silicon hydride are self-inflammable gases when exposed to the air, but their quantity is so very small that this possibility may be dismissed. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon He could almost picture the stream of boron hydride blending with the oxidizer and flowing in an ever-increasing stream toward the combustion chamber. The Scarlet Lake Mystery The experiments have been made with the vapors of two very volatile liquids, namely, sulphuric ether and hydride of amyl. Scientific American Supplement, No. 365, December 30, 1882 |
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