| 单词 | halide |
| 例句 | Bromide is an endocrine disruptor and part of the halide family which includes fluorine, chlorine and iodine. 5 awful things in the food you eat every day 2014-02-14T13:00:00Z Solar cell efficiency has soared in recent years due to light-harvesting materials like halide perovskites, but the ability to produce them reliably at scale continues to be a challenge. Breakthrough synthesis method improves solar cell stability 2023-10-26T04:00:00Z The researchers said the dual deposition technique could pave the way for the development of additional solar cells based on all inorganic perovskites or other halide perovskite compositions. Scientists develop new method to create stable, efficient next-gen solar cells 2023-10-24T04:00:00Z To overcome this hurdle, Yang and team then leveraged the unique qualities of a well-studied solar material that has intrigued researchers for many years: halide perovskites. Accelerating sustainable semiconductors with 'multielement ink' 2023-09-28T04:00:00Z The hydrogen halides are all acidic when dissolved in water. Chemistry 2019-02-14T00:00:00Z The halides are so named because the anions include the halogen elements chlorine, fluorine, bromine, etc. Physical Geology 2015-01-01T00:00:00Z Like the hydrogen and oxygen atoms in ice, the particles that make up halide perovskites can also form multiple lattice arrangements. Breakthrough synthesis method improves solar cell stability 2023-10-26T04:00:00Z Unfortunately, structural stability, high charge mobility and the ability to absorb light strongly don’t seem to coexist in perovskite halides. A structurally unstable semiconductor stabilized and enhanced by strain 2020-01-07T05:00:00Z Because of their ionic bonding nature, halide perovskite crystal structures require significantly lower energy to form as compared to other material systems, explained Yang. Accelerating sustainable semiconductors with 'multielement ink' 2023-09-28T04:00:00Z Halides of the metals vary from ionic to covalent; halides of nonmetals are covalent. Chemistry 2019-02-14T00:00:00Z There was greater trust in the power of ground lenses and silver halides to capture the world in a way that the eye cannot. 150 years of scientific illustration 2019-11-04T05:00:00Z The study authors included data involving dozens of lamp types, including kerosene lamps, LEDs, halides, fluorescent and sodium lights. These animals depend on darkness. But humans have ruined their nights. 2018-06-29T04:00:00Z By contrast, Chen and colleagues’ study provides an extremely accessible and practical avenue through which to explore and use the physical properties of strained halide perovskites. A structurally unstable semiconductor stabilized and enhanced by strain 2020-01-07T05:00:00Z The advance takes advantage of two unique families of semiconducting materials: hard alloys made of high-entropy semiconductors; and a soft, flexible material made of crystalline halide perovskites. Accelerating sustainable semiconductors with 'multielement ink' 2023-09-28T04:00:00Z These elements react with halogens to form a variety of halides ranging in oxidation state from 1+ to 6+. Chemistry 2019-02-14T00:00:00Z ‘These experimental results allow a glimpse into the complex dynamic response of metal halide perovskites upon absorption of photons.’ Molecular Movie Reveals Inner Workings of New Solar Cells 2017-08-03T04:00:00Z They are designed as energy efficient replacements for traditional 400W quartz metal halide lamps installed in magnetic ballasts and intended for use in high-ceiling industrial, retail and commercial applications. Recalls this week: spill-proof cups, water heaters 2016-05-27T04:00:00Z The replacement of the previous metal halide fixtures was completed this month and the new stadium lighting will be in use during the club’s annual FanFest this weekend. Mariners to have 1st major league stadium with LED lights 2015-01-20T05:00:00Z In addition to the improved experience for players and fans, LED fixtures are more efficient and have a longer lifespan than metal halide lamps. Mariners notes: Cano's winter league season ends, new lights, new alternate uniforms 2015-01-20T05:00:00Z All halides of the heavier d-block elements have significant covalent characteristics. Chemistry 2019-02-14T00:00:00Z Yet, unlike its silicon counterpart, surprisingly little is known about how the metal–organo–halide structure converts light into electricity. Molecular Movie Reveals Inner Workings of New Solar Cells 2017-08-03T04:00:00Z They double down on silver halide photography because they were concerned about Walmart becoming as large as they were with selling the single use camera, and they had a huge distribution system. John Sculley on His New Book "Moonshot" 2014-10-22T04:00:00Z Over the course of months or years the silver halides destabilize and the resulting mold obscures the portraits. These Very Weird Portraits Are Actually Alive 2014-10-22T04:00:00Z Metal halide lamps must be changed every 3,000 hours or so. Mariners notes: Cano's winter league season ends, new lights, new alternate uniforms 2015-01-20T05:00:00Z In general, it is possible to prepare the halides by the general techniques used to prepare other acids. Chemistry 2019-02-14T00:00:00Z Question 3: Which alcohol will most easily react with HCl to form an alkyl halide? 3 Challenging Sample MCAT Questions on Organic Chemistry 2014-09-23T04:00:00Z Each Ephesus LED light provides nearly double the illumination of traditional metal halide lights. Sunday night lights! Super Bowl to be lit by LEDs 2014-09-22T04:00:00Z In the parking lot, the LED fixtures will use about half the power that is required by the metal halide lights that are the conventional alternative. Walmart Store In Ohio Goes Entirely LED 2013-11-05T18:22:00Z And unlike metal halide lights, which need a 20 minute warm-up, LED lights respond instantly when switched on. Mariners notes: Cano's winter league season ends, new lights, new alternate uniforms 2015-01-20T05:00:00Z Fluorine, chlorine, and bromine react directly with hydrogen to form the respective hydrogen halide. Chemistry 2019-02-14T00:00:00Z D. All alcohols react equally to form alkyl halides, incorrect. 3 Challenging Sample MCAT Questions on Organic Chemistry 2014-09-23T04:00:00Z “Metal halide lights throw off a ton of heat.” Sunday night lights! Super Bowl to be lit by LEDs 2014-09-22T04:00:00Z Bromide belongs to the same group as chloride, and so there is always the risk of halide cracking of susceptible steels. Exclusive: Oil & gas industry fears more deep-sea leaks linked to drill fluid 2013-09-05T15:32:12Z One is existing modes of lighting: Edison’s screw-based socket, the office’s fluorescent ceiling tubes, and metal halide or sodium lights in parking lots are not going away anytime soon. New Technology Inspires a Rethinking of Light 2013-04-24T23:21:22Z The acid-base reaction between a nonvolatile strong acid and a metal halide will yield a hydrogen halide. Chemistry 2019-02-14T00:00:00Z Inside Kodak, this was known as the “silver halide” strategy — named after the chemical compounds in its film. How Success Killed Eastman Kodak 2011-10-01T14:54:49Z "This is hard work — you see me sweating," he adds, tending to his plants under the bluish glow of a metal halide light. Marijuana College: Oaksterdam Focuses on Higher Education 2011-03-28T09:45:00Z They may also be prepared by heating the alkyl halides with silver oxide. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" 2011-02-27T03:00:31.973Z The major types of lighting in Los Angeles are high-pressure sodium lights and metal halide lights. City lighting 'boosts pollution' 2010-12-14T12:45:13Z The escape of the gaseous hydrogen halide drives the reaction to completion. Chemistry 2019-02-14T00:00:00Z The majority of these halide compounds are decomposed by water, with the formation of basic salts. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" The binary halides are an important subclass of salts. Chemistry 2019-02-14T00:00:00Z In such a case the ester is best prepared by the action of an alkyl halide on the silver salt of the acid, and when once prepared, can only be hydrolysed with great difficulty. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" 2011-02-27T03:00:31.973Z We will illustrate the general types of reactions for preparing salts through reactions used to prepare binary halides. Chemistry 2019-02-14T00:00:00Z All of the hydrogen halides are very soluble in water, forming hydrohalic acids. Chemistry 2019-02-14T00:00:00Z The binary compounds of a metal with the halogens are the halides. Chemistry 2019-02-14T00:00:00Z If a metal can exhibit two oxidation states, it may be necessary to control the stoichiometry in order to obtain the halide with the lower oxidation state. Chemistry 2019-02-14T00:00:00Z The active representative metals also react with solutions of hydrogen halides to form hydrogen and solutions of the corresponding halides. Chemistry 2019-02-14T00:00:00Z Hydroxides, carbonates, and some oxides react with solutions of the hydrogen halides to form solutions of halide salts. Chemistry 2019-02-14T00:00:00Z Reactions of hydrohalic acids with metals, metal hydroxides, oxides, or carbonates produce salts of the halides. Chemistry 2019-02-14T00:00:00Z For example, they oxidize in air upon heating and react with elemental halogens to form halides. Chemistry 2019-02-14T00:00:00Z As an illustration of this technique, the next example exercise describes separation of a two halide ions via precipitation of one as a silver salt. Chemistry 2019-02-14T00:00:00Z Except for silicon tetrafluoride, silicon halides are extremely sensitive to water. Chemistry 2019-02-14T00:00:00Z It is the weakest oxidizing agent, and the iodide ion is the most easily oxidized halide ion. Chemistry 2019-02-14T00:00:00Z Another preparative method is the electrochemical oxidation of a hot solution of a metal halide to form the appropriate metal chlorates. Chemistry 2019-02-14T00:00:00Z The direct reaction of a metal and a halogen produce the halide of the metal. Chemistry 2019-02-14T00:00:00Z The active representative metals—those that are easier to oxidize than hydrogen—react with gaseous hydrogen halides to produce metal halides and hydrogen. Chemistry 2019-02-14T00:00:00Z A few halides and many of the other salts of the representative metals are insoluble. Chemistry 2019-02-14T00:00:00Z The ocean and underground brines contain many halides. Chemistry 2019-02-14T00:00:00Z The easier it is to oxidize the halide ion, the more difficult it is for the halogen to act as an oxidizing agent. Chemistry 2019-02-14T00:00:00Z The interhalogens react like their component halides; halogen fluorides, for example, are stronger oxidizing agents than are halogen chlorides. Chemistry 2019-02-14T00:00:00Z Transition metal halides with low oxidation numbers form more ionic bonds. Chemistry 2019-02-14T00:00:00Z It is possible to oxidize the halide ions to free diatomic halogen molecules by various methods, depending on the ease of oxidation of the halide ion. Chemistry 2019-02-14T00:00:00Z |
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