摘要:
One exemplary embodiment includes a materials and devices comprising a multi-element filled skutterudite type body-centered cubic crystal structure including GyM4X12, wherein G is at least two elements. The material may include n-type or p-type doping.
摘要:
The invention is directed to a menstruum prepositioned type sterile drug-mixing syringe and a menstruum separately positioned type sterile drug-mixing syringe including a shell, a needle, a piston and a push-pull rod assembly. The syringe further includes a menstruum bottle, a solute bottle, a sliding sleeve and a needle loading assembly. The menstruum bottle may be fixed to the inner wall of a sliding sheath, and the solute bottle may be fixed to the inner of the shell. Piston may be disposed within the solute bottle. The sliding sleeve may be socketed to the front end of the shell in advance or disposed by other ways. The mouth of the menstruum bottle may be opposite to the mouth of the solute bottle and may be connected by a needle, which has two piercing tips, wherein the needle punctures and is securely connected to the needle loading assembly.
摘要:
A thermoelectric material includes a filled skutterudite crystal structure having the formula GyM4X12, where i) G includes at least two rare earth elements and an alkaline earth element, ii) M is cobalt, rhodium, or iridium, and iii) X is antimony, phosphorus, or arsenic. The subscript “y” refers to a crystal structure filling fraction ranging from about 0.001 to about 0.5.
摘要:
A composite material comprises a filled skutterudite matrix of formula (I) IyCo4Sb12 in which (I) represents at least one of Yb, Eu, Ce, La, Nd, Ba and Sr, 0.05≦y
摘要翻译:复合材料包括式(I)IyCo4Sb12的填充方钴矿基质,其中(I)表示Yb,Eu,Ce,La,Nd,Ba和Sr中的至少一种,0.05和nlE; y <1; 和填充的方钴矿基体内的GaSb颗粒,其中复合材料包含0.05-5mol%的GaSb颗粒。 与常规材料相比,复合材料表现出显着增加的塞贝克系数,总热导率略有降低,以及从低温端到高温端的整个温度区的热电性能指数显着增加, 增强热电效率。
摘要:
The disclosure relates to a p-type skutterudite material and a method of making the same, comprising providing a p-type skutterudite material having a general formula: IyFe4-xMxSb12/z(J) wherein I represents one or more filling atoms in a skutterudite phase, the total filling amount y satisfying 0.01≦y≦1; M represents one or more dopant atoms with the doping amount x satisfying 0≦x≦4; J represents one or more second phases with the molar ratio z satisfying 0≦z≦0.5; wherein second phase precipitates are dispersed throughout the skutterudite phase.
摘要翻译:本发明涉及一种p型方钴矿材料及其制备方法,包括提供具有以下通式的p型方钴矿材料:IyFe4-xMxSb12 / z(J)其中I表示方钴矿中的一个或多个填充原子 总填充量y满足0.01 @ y @ 1; M表示掺杂量x满足0 @ x @ 4的一个或多个掺杂剂原子; J表示摩尔比z满足0 @ z @ 0.5的一个或多个第二相; 其中第二相沉淀分散在整个方钴矿相中。
摘要:
Provided are a fluorination catalyst for preparing 2,3,3,3-tetrafluoropropene and a method using the catalyst for preparing 2,3,3,3-tetrafluoropropene. The catalyst has the following structural formula: Crx(Y,Z)0.005-0.5O0.1-1.0F1.0-3.0, where Y is one or a combination of two or more among Al, Zn, and Mg, and where Z is a rare earth element having an oxygen-storing/releasing function. The catalyst has in preparing 2,3,3,3-tetrafluoropropene the advantages of increased raw material conversion rate, great product selectivity, and extended catalyst service life.
摘要:
Provided are a fluorination catalyst for preparing 2,3,3,3-tetrafluoropropene and a method using the catalyst for preparing 2,3,3,3-tetrafluoropropene. The catalyst has the following structural formula: Crx(Y,Z)0.005-0.5O0.1-10F1.0-3.0, where Y is one or a combination of two or more among Al, Zn, and Mg, and where Z is a rare earth element having an oxygen-storing/releasing function. The catalyst has in preparing 2,3,3,3-tetrafluoropropene the advantages of increased raw material conversion rate, great product selectivity, and extended catalyst service life.
摘要:
A composite material comprises a filled skutterudite matrix of formula (I) IyCo4Sb12 in which (I) represents at least one of Yb, Eu, Ce, La, Nd, Ba and Sr, 0.05≦y
摘要翻译:复合材料包括式(I)IyCo4Sb12的填充方钴矿基质,其中(I)表示Yb,Eu,Ce,La,Nd,Ba和Sr中的至少一种,0.05和nlE; y <1; 和填充的方钴矿基体内的GaSb颗粒,其中复合材料包含0.05-5mol%的GaSb颗粒。 与常规材料相比,复合材料表现出显着增加的塞贝克系数,总热导率略有降低,以及从低温端到高温端的整个温度区的热电性能指数显着增加, 增强热电效率。
摘要:
A thermoelectric material includes a multiple transition metal-doped type I clathrate crystal structure having the formula A8TMy11TMy22 . . . TMynnMzX46-y1-y2- . . . -yn-z. In the formula, A is selected from the group consisting of barium, strontium, and europium; X is selected from the group consisting of silicon, germanium, and tin; M is selected from the group consisting of aluminum, gallium, and indium; TM1, TM2, and TMn are independently selected from the group consisting of 3d, 4d, and 5d transition metals; and y1, y2, yn and Z are actual compositions of TM1, TM2, TMn, and M, respectively. The actual compositions are based upon nominal compositions derived from the following equation: z=8·qA−|Δq1|y1−|Δq2|y2− . . . −|Δqn|yn, wherein qA is a charge state of A, and wherein Δq1, Δq2, Δqn are, respectively, the nominal charge state of the first, second, and n-th TM.