The present invention relates to porous carbon spheres via one-step non-catalytic and activation-free chemical vapor deposition method possessing a large volume of ultra-micropores. The ultra-micropore structure allows for with good cyclic stability, easy regeneration, favorable selectivity, and rapid sorption kinetics resulting in high capacity of CO.sub.2 capture at atmospheric and low pressures.

The present invention provides an improved sorbent and corresponding device(s) and uses thereof for the capture and stabilization of volatile organic compounds (VOC) or semi-volatile organic compounds (SVOC) from a gaseous atmosphere. The sorbent is capable of rapid and high uptake of one or more compounds and provides quantitative release (recovery) of the compound(s) when exposed to elevated temperature and/or organic solvent. Uses of particular improved grades of mesoporous silica are disclosed.

A hybrid zeolitic imidazolate framework having an isolated purity of at least 95 wt. %, which is a coordination product formed between zinc(II) ions, a linker of formula (I), and a linker of formula (II);

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wherein each linker of formulae (I) and (II) links together adjacent zinc(II) ions, R.sup.1 and R.sup.2 are independently a hydrogen, an optionally substituted alkyl, an optionally substituted aryl, a halo, a nitro, or a cyano, and R.sup.3 and R.sup.4 are independently hydrogen, an optionally substituted alkyl, an optionally substituted aryl, or an optionally substituted arylalkyl. A method of making the hybrid zeolitic imidazolate framework and a method of capturing CO.sub.2 from a gas mixture with the hybrid zeolitic imidazolate framework.

The present invention relates to a process for preparing a magnesium formate based metal-organic framework. The process comprises (a) combining magnesium or magnesium oxide with formic acid; (b) heating the reaction mixture of step (a) at a temperature of between 70° C. and 200° C.; (c) combining formic acid with the reaction mixture of step (b); and (d) heating the reaction mixture of step (c) at a temperature of between 70° C. and 200° C. Steps (c) and (d) may be heated up to 5 times.

The invention relates to an apparatus (1) for catalytic decomposition of nitrous oxide in a gas stream derived from exhalation air from a patient. The apparatus (1) comprises an inlet arrangement (2) with a gas inlet (3) for the exhalation air, an outlet arrangement (11) with a gas outlet (12) for an outlet gas, and between these arrangements a through-flow decomposition chamber (9) containing a catalyst material. According to the invention the apparatus is provided with a nitrous oxide adsorption/desorption means (4) in the inlet arrangement (2) for level out variations in the concentration of nitrous oxide fed to the decomposition chamber (9).

The present invention generally relates to the field of gas and liquid phase desiccation. In particular, the present invention relates to methods for removing moisture (and hence oxygen precursors) from hydrazine, thereby providing a high purity source gas suitable for use in vapor deposition processes, such as but not limited to, chemical vapor deposition (CVD) or an atomic layer deposition (ALD).

Provided are porous polymeric materials, methods of making same, and methods of using same. The porous polymeric materials include crosslinked calixarene moieties. The porous polymeric materials can be added to a sample and absorb/adsorb pollutants present in the sample. The absorbed/adsorbed pollutant can further be isolated from the porous polymeric material. The porous polymeric materials can be recycled.

A porous aluminum-based metal-organic framework (MOF) comprises inorganic aluminum chains linked via carboxylate groups of 1H-pyrazole-3,5-dicarboxylate (HPDC) linkers, and of formula: [Al(OH)(C.sub.5H.sub.2O.sub.4N.sub.2)(H.sub.2O)].

The present description provides adsorbent compositions and materials, and systems comprising the same that provide low DBL bleed emission performance. The described materials provide unexpected production advantages as compared to currently available materials.

The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.