Method for generating hydrogen

Claim 1

IN THE METHOD FOR GENERATING HYDROGEN WHICH COMPRISES REACTING A BOROHYDRIDE WITH WATER IN THE PRESENCE OF A HYDROLYSIS CATALYST, THE IMPROVEMENT WHEREIN THE CATALYTIC ACTIVITY OF THE CATALYST IS VARIED TO CONTROL THE RATE OF HYDROGEN EVOLUTION BY VARYING THE AREA OF THE SURFACE OF THE CATALYST IN SOLID FORM IN CONTACT WITH THE REACTION MIXTURE, SAID CATALYST BEING DEPOSITED IN AN ADHERENT FORM ON AN INERT POROUS SUPPORT BY IMMERSING SAID SUPPORT IN A SOLUTION OF A BOROHYDRIDE FOLLOWED BY IMMERSION IN A SOLUTION OF A SALT OF A HEAVY METAL, THE AREA OF THE SURFACE OF THE CATALYST IN CONTACT WITH THE REACTION MIXTURE BEING VARIED BY VARYING THE DEPTH OF IMMERSION OF THE CATALYST-CARRYING SUPPORT IN THE REACTION MIXTURE, SAID BOROHYDRIDE BEING HYDROLYZED AND SAID BOROHYDRIDE USED IN FORMING THE CATALYST BEING SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE ALKALI METAL BOROHYDRIDES, WATER SOLUBLE ALKALINE EARTH METAL BOROHYDRIDES, AND WATER SOLUBLE AMINE BORANES.