Abstract: Disclosed is a catalyst system for the reduction of NOx. The catalyst system comprises a catalyst in a first zone comprising a catalyst support, a catalytic metal comprising gallium, and at least one promoting metal selected from the group consisting of silver, gold, vanadium, zinc, tin, bismuth, cobalt, molybdenum, tungsten, indium and mixtures thereof; a catalyst in the second zone following the first zone; the catalyst comprising a second catalyst support, a second catalytic metal selected from the group consisting of indium, copper, manganese, tungsten, molybdenum, titanium, vanadium, iron, cerium and mixtures thereof. The catalyst system further comprises a gas stream comprising an organic reductant comprising oxygen or nitrogen. The catalyst system may further optionally comprise a catalyst in a third zone following the second zone; the catalyst comprising a third catalyst support and a third catalytic metal selected from the group consisting of platinum, palladium, and mixtures thereof.

Abstract: A material for storage and retrieval of hydrogen is provided. The material comprises a matrix material and a metallic catalyst disposed within the matrix material, the catalyst comprising at least one metal component and at least one Group 13 element, wherein the catalyst comprises a disordered phase. The hydrogen storage material has a hydrogen desorption rate of at least about 3 weight percent per hour at a temperature of about 150° C. A method for making the material is also provided. The method comprises The method comprises providing a metallic catalyst comprising at least one metal component and at least one Group 13 element, wherein the catalyst comprises a disordered phase; providing a matrix material; and homogenizing the catalyst with the matrix material to form a material comprising (i) 43the matrix material and (ii) the catalyst disposed within the matrix material.

Abstract: Disclosed herein is a method for the storage of hydrogen comprising contacting a hydrogen storage composition with a gaseous mixture comprising hydrogen; and irradiating the hydrogen storage composition with radio frequency radiation or microwave radiation in an amount effective to facilitate the absorption, adsorption and/or chemisorption of hydrogen into the hydrogen storage composition.