摘要:
The present invention relates to electrode materials for charged electrical cells, comprising at least one polymer comprising polysulfide bridges, and carbon in a polymorph comprising at least 60% sp2-hybridized carbon atoms. The present invention further relates to electrical cells comprising the inventive electrode material, to specific polymers comprising polysulfide bridges, to processes for preparation thereof and to the use of the inventive cells.
摘要:
The present invention relates to electrode materials for charged electrical cells, comprising at least one polymer comprising polysulfide bridges, and carbon in a polymorph comprising at least 60% sp2-hybridized carbon atoms. The present invention further relates to electrical cells comprising the inventive electrode material, to specific polymers comprising polysulfide bridges, to processes for preparation thereof and to the use of the inventive cells.
摘要:
The present invention relates to electrode materials for electrical cells, containing, as component (A), at least one polymer including polymer chains formed from identical or different monomer units selected from substituted and unsubstituted vinyl units and substituted and unsubstituted C2-C10-alkylene glycol units and containing at least one monomer unit -M1- including at least one thiolate group —S− or at least one end of a disulfide or polysulfide bridge —(S)m— in which m is an integer from 2 to 8, the thiolate group or the one end of the disulfide or polysulfide bridge —(S)m— in each case being bonded directly to a carbon atom of the monomer unit -M1-, and, as component (B), carbon in a polymorph containing at least 60% sp2-hybridized carbon atoms. The present invention also relates to electrical cells containing the inventive electrode material, to specific polymers, to processes for preparation, and to uses of the inventive cells.
摘要:
Process for working up an exhaust gas from a system for producing hydroxylamine or hydroxylammonium salts by catalytic reduction of nitrogen monoxide with hydrogen, the exhaust gas containing nitrogen monoxide, hydrogen, dinitrogen monoxide, nitrogen and ammonia. At least some of the hydrogen present in the exhaust gas is separated off from the exhaust gas by means of a gas-tight membrane-electrode assembly which comprises at least one selectively proton-conducting membrane, a retentate side, a permeate side, and, on each side of the membrane, at least one electrode catalyst, wherein, on the retentate side of the membrane, at least some of the hydrogen is oxidized to protons at the anode catalyst and the protons, after crossing the membrane, are, on the permeate side, at the cathode catalyst according to (I) reduced to hydrogen and/or (II) reacted with oxygen to form water, the oxygen originating from an oxygen-containing stream which is contacted with the permeate side.
摘要:
The present invention relates to electrode materials for electrical cells, containing, as component (A), at least one polymer including polymer chains formed from identical or different monomer units selected from substituted and unsubstituted vinyl units and substituted and unsubstituted C2-C10-alkylene glycol units and containing at least one monomer unit -M1- including at least one thiolate group —S− or at least one end of a disulfide or polysulfide bridge —(S)m— in which m is an integer from 2 to 8, the thiolate group or the one end of the disulfide or polysulfide bridge —(S)m— in each case being bonded directly to a carbon atom of the monomer unit -M1-, and, as component (B), carbon in a polymorph containing at least 60% sp2-hybridized carbon atoms. The present invention also relates to electrical cells containing the inventive electrode material, to specific polymers, to processes for preparation, and to uses of the inventive cells.
摘要:
Electrodes, comprising (A) a solid medium through which gas can diffuse, (B) at least one electrically conductive, carbonaceous material, (C) at least one organic polymer, (D) at least one compound of the general formula (I) M1aM2bM3cM4dHeOf (I) in particulate form, where the variables are each defined as follows: M1 is selected from Mo, W, V, Nb and Sb, M2 is selected from Fe, Ag, Cu, Ni, Mn and lanthanoids, M3 is selected from B, C, N, Al, Si, P and Sn, M4 is selected from Li, Na, K, Rb, Cs, NH4, Mg, Ca and Sr, a is in the range from 1 to 3, b is in the range from 0.1 to 10, c is in the range from zero to one, d is in the range from zero to one, e is in the range from zero to 0.5, f is in the range from 1 to 28, and wherein compound of the general formula (I) has a BET surface area in the range from 1 to 300 m2/g.
摘要:
The present invention relates to an electrode material for an electrical cell comprising activated carbon fibers as component (A) which have been impregnated with elemental sulfur as component (B). The present invention further relates to rechargeable electrical cells comprising at least one electrode which has been produced from or using the inventive electrode material and to a process for producing said inventive electrode material.
摘要:
A process for working up an exhaust gas A from a system for producing hydroxylamine or hydroxylammonium salts by catalytic reduction of nitrogen monoxide with hydrogen, wherein the exhaust gas A comprises nitrogen monoxide, hydrogen, dinitrogen monoxide, nitrogen and ammonia, and at least some of the hydrogen present in the exhaust gas A is separated off from the exhaust gas A by means of a gas-tight membrane-electrode assembly which comprises at least one selectively proton-conducting membrane, a retentate side, a permeate side, and, on each side of the membrane, at least one electrode catalyst, wherein, on the retentate side of the membrane, at least some of the hydrogen is oxidized to protons at the anode catalyst and the protons, after crossing the membrane, are, on the permeate side, at the cathode catalyst according to I reduced to hydrogen and/or II reacted with oxygen to form water, wherein the oxygen originates from an oxygen-comprising stream O which is contacted with the permeate side.
摘要:
The present invention relates to composite materials comprising a reaction product of (A) at least one organic polymer, (B) sulfur, (C) carbon in a polymorph which comprises at least 60% sp2-hybridized carbon atoms, and (D) 2-20% by weight of a perfluorinated or partly fluorinated polymer, based on the total weight of components (A), (B) and (C) used before reaction, and also to a process for producing inventive composite materials and to the use of inventive composite materials.
摘要:
The present invention relates to composite materials comprising a reaction product of (A) at least one organic polymer, (B) sulfur, (C) carbon in a polymorph which comprises at least 60% sp2-hybridized carbon atoms, and (D) 2-20% by weight of a perfluorinated or partly fluorinated polymer, based on the total weight of components (A), (B) and (C) used before reaction, and also to a process for producing inventive composite materials and to the use of inventive composite materials.