摘要:
This invention relates to a process for the preparation of 1,1-difluoroolefins, e.g., difluorovinyl cycloaliphatic compounds such as difluorovinylcyclohexane and derivatives by the dehydrofluorination of a trifluoromethyl-substituted cycloaliphatic compound and the resulting compositions. This method utilizes a “sterically hindered super-base” system represented by the formula M+−NRR−; where M is Na or K and R is a secondary, or tertiary alkyl or cycloalkyl group of amines for effecting dehydrofluorination of the trifluoromethyl group leading to the difluorovinyl based cycloaliphatic compounds. The sterically hindered super base can be formed by the, in situ, reaction of a sodium or potassium alkoxide, e.g., KtBuO with a lithium dialkylamide where the lithium is bonded to nitrogen atom of an amine bearing secondary or tertiary aliphatic groups.
摘要:
The present invention relates to an improvement in lithium secondary batteries comprised of a negative electrode, a positive electrode, a separator, and a lithium-based electrolyte carried in an aprotic solvent and to the electrolyte compositions. The improvement resides in the use of a lithium salt of the formula: Li2B12FxZ12−x wherein x greater than or equal to 4 and Z represents H, Cl, and Br.
摘要翻译:本发明涉及由在非质子传递溶剂中负载的负极,正极,隔膜和锂基电解质组成的锂二次电池的改进。 改进在于使用下式的锂盐:<?in-line-formula description =“In-line formula”end =“lead”?> Li 2 B 12 β-in-line-formula description =“In-line Formulas”end =“tail”?>其中x大于 或等于4,Z表示H,Cl和Br。
摘要:
The invention relates to electrolyte salts for electrochemical devices of improved physical, chemical and electrochemical stability. The improvement resides in the use of anions of salts of the formula comprising: i) (B12FxZ12-x)2− wherein Z comprises at least one of H, Cl, Br or OR; R comprises at least one of H, alkyl or fluoroalkyl, or at least one polymer and x is at least 3 on an average basis but not more than 12; ii) ((R′R″R′″)NB12FxZ(11-x))−, wherein N is bonded to B and each of R′, R″, R′″ comprise a member independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl and a polymer; Z comprises H, Cl, Br, or OR, where R comprises H, alkyl or perfluoroalkyl or a polymer, and x is an integer from 0 to 11; or iii) (R″″CB11FxZ(11-x))−, wherein R″″ is bonded to C and comprises a member selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, and a polymer, Z comprises H, Cl, Br, or OR, wherein R comprises H, alkyl or perfluoroalkyl or a polymer, and x is an integer from 0 to 11.
摘要翻译:本发明涉及具有改进的物理,化学和电化学稳定性的电化学装置的电解质盐。 改进之处在于使用下式的盐阴离子,其包含:i)(B 12 R x Z 12-x N) 其中Z包括H,Cl,Br或OR中的至少一个; R包含H,烷基或氟烷基或至少一种聚合物中的至少一种,x平均为至少3,但不超过12; ii)((R'R''R“')NB 12 F x(11-x)) - 其中N与B键合,R',R“,R”'中的每一个包含独立地选自氢,烷基,环烷基,芳基和聚合物的成员; Z包括H,Cl,Br或OR,其中R包括H,烷基或全氟烷基或聚合物,x是0至11的整数; 或iii)(R“'CB 11)X Z(11-x)) - - - - 其中R“'键合到C并且包含选自氢,烷基,环烷基,芳基和聚合物的成员,Z包括H,Cl,Br或OR,其中R包括H,烷基或 全氟烷基或聚合物,x为0至11的整数。
摘要:
The present invention relates to an improvement in lithium secondary batteries comprised of a negative electrode, a positive electrode, a separator, and a lithium-based electrolyte carried in an aprotic solvent and to the electrolyte compositions. The improvement resides in the use of a lithium salt of the formula: Li2B12FxZ12-x wherein x greater than or equal to 4 and Z represents H, Cl, and Br.
摘要:
An electrochemical energy conversion and storage system includes an electrochemical energy conversion device, such as a fuel cell that is in fluid communication with a hydrogen or electrically regenerable organic liquid fuel and an oxidant, for receiving, catalyzing and electrochemically oxidizing at least a portion of the fuel to generate electricity, a thus partially oxidized liquid fuel, and water. The liquid fuel includes six-membered ring cyclic hydrocarbons with functional group substituents, wherein the ring hydrogens may undergo an electrochemical oxidative dehydrogenation to the corresponding aromatic molecules. Comprising ring-substituent functional groups may also be electrochemically oxidized now with a potential incorporation of oxygen thus providing an additional capacity for energy storage. The partially oxidized spent liquid fuel may be electrically regenerated in with now an input of electricity and water to the device, generating oxygen as a by-product. Alternatively, the recovered spent fuel may be conveyed to a facility where it is reconstituted by catalytic hydrogenation or electrochemical hydrogenation processes.
摘要:
A material for the storage of hydrogen is provided comprising single wall carbon nanotubes (SWNT), wherein the majority of the diameters of the single wall carbon nanotubes of the assembly range from 0.4 to 1.0 nanometers (nm), and the average length is less than or equal to 1000 nm, or the diameters of the single wall carbon nanotubes of the assembly range from 0.4 to 1.0 nanometers (nm), and the heat (−ΔH) of hydrogen adsorption of the material is within the range from 4 kcal/mole H2 to 8 kcal/mole H2. Processes for the storage and release of hydrogen using the materials are disclosed.
摘要翻译:提供了用于储存氢的材料,其包括单壁碳纳米管(SWNT),其中组合物的单壁碳纳米管的大部分直径范围为0.4至1.0纳米(nm),平均长度小于 或者等于1000nm,或组合物的单壁碳纳米管的直径范围为0.4至1.0纳米(nm),并且材料的氢吸附的热(-DeltaH)在4kcal /摩尔的范围内 H 2〜8kcal / mole H 2。 公开了使用该材料储存和释放氢的方法。
摘要:
Disclosed is a dispenser useful for dispensing a first liquid and retrieving a second liquid comprising a first conduit having an orifice for dispensing the first liquid, and a second conduit having an orifice for retrieving a second liquid in direction countercurrent to the first liquid. Also disclosed are methods for using a dispenser of the invention comprising placing a dispenser in communication with a first compartment and a second compartment, the dispenser comprising a first conduit having an orifice for dispensing the first liquid and a second conduit having an orifice for retrieving a second liquid in direction countercurrent to the first liquid; transferring the first liquid through the first conduit into the first compartment; and transferring the second liquid situated in the second compartment into the second conduit. The invention also relates to the use of the dispenser in a fueling process.
摘要:
A process is described for producing partially crystalline polyacetylene in the cis or trans configurations utilizing.mu.-(.eta..sup.1 :.eta..sup.5 -cyclopentadienyl)-tris(.eta.-cyclopentadienyl)dititanium(Ti-Ti) catalyst. The resulting polyacetylene when "doped" with halogen additives is useful as an electrical conductor or semiconductor. Also described are polyacetylene "gels," consisting essentially of a solid polyacetylene and gel-forming liquid therefor, also containing up to about 10 percent by weight of catalyst, per weight of acetylene, which is used for production of the polyacetylene. The gels are stable to phase separation at room temperature in a closed system, and are useful in preparing randomly and partially chain-aligned polyacetylene films and articles.
摘要:
Process for producing hydrogen comprising reacting at least one hydrocarbon and steam in the presence of a complex metal oxide and a steam-hydrocarbon reforming catalyst in a production step under reaction conditions sufficient to form hydrogen gas and a spent complex metal oxide, wherein the complex metal oxide is represented by the formula AxByOn wherein A represents at least one metallic element having an oxidation state ranging from +1 to +3, inclusive, wherein the metallic element is capable of forming a metal carbonate; x is a number from 1 to 10, inclusive; B represents at least one metallic element having an oxidation state ranging from +1 to +7, inclusive; y is a number from 1 to 10, inclusive; and n represents a value such that the complex metal oxide is rendered electrically neutral.
摘要翻译:包括在生产步骤中在复合金属氧化物和蒸汽 - 烃重整催化剂存在下使至少一种烃和蒸汽与足以形成氢气的反应条件和废复合金属氧化物反应的方法,其中复合金属 氧化物由公式<?in-line-formula description =“In-line Formulas”end =“lead”?> A sub> B sub> 其中A表示至少一种具有+1至+3的氧化态的金属元素,包括端值在内,其中, 金属元素能够形成金属碳酸盐; x是1到10的数字,包括1和10; B表示至少一种具有+1至+7的氧化态的金属元素,包括端值; y是从1到10的数字,包括; n表示使复合金属氧化物呈电中性的值。
摘要:
A process for producing hydrogen comprising reacting at least one hydrocarbon and steam in the presence of a complex metal oxide and a steam-hydrocarbon reforming catalyst in a production step under reaction conditions sufficient to form hydrogen and a spent complex metal oxide, wherein the complex metal oxide is represented by the formula (A′xCax′Mgx″)x(B′yMny′Fey″)yOn where A′ represents at least one element selected from the group consisting of Sr, Ba, a Group 1 element, and an element of the Lanthanide series according to the IUPAC Periodic Table of the Elements; B′ represents at least one element selected from the group consisting of Cu, Ni, Co, Cr, and V; 0≦x≦1, 0≦x′≦1, 0≦x″≦1 wherein x+x′+x″=x; 0≦y≦1, 0≦y′≦1, 0≦y″≦1 wherein y+y′+y″=y; 1≦x≦10; 1≦y≦10; and n represents a value such that the complex metal oxide is rendered electrically neutral.