TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I) comprises: preparing a first solution comprising salts of iron compounds, copper compounds, zinc compounds and aluminum compounds, preparing a second solution comprising an aqueous base solution, combining the first and second solutions with deionized water in a mix tank while maintaining the pH, holding the mixture for a predetermined time period, heating the mixture and holding the mixture at an elevated temperature until solids are formed, washing the solids, optionally adding potassium compounds, drying the washed solids, and calcining the dried solids. Preferred Process: The second solution is added to the deionized water before the first solution is added to the deionized water. The first solution is added to the deionized water before the second solution is added to the deionized water. Preferred Components: (I) comprises: copper oxide (1.5-10 (preferably 3.5-5) wt.%), zinc oxide (1.5-10 (preferably 3-5) wt.%), aluminum trioxide (2-8 (preferably 4-6) wt.%); and potassium oxide (0.1-2 (preferably 0.2-1) wt.%). The salts of iron compounds, copper compounds, zinc compounds and aluminum compounds are iron nitrates, iron sulfates, iron acetates, iron amines, iron chlorides, copper nitrates, copper sulfates, copper acetates, copper amines, copper chlorides, zinc nitrates, zinc sulfates, zinc acetates, zinc amines, zinc chlorides, aluminum nitrates, aluminum sulfates, aluminum acetates, aluminum chlorides, alumina oxide, alumina hydroxide and/or sodium aluminate. The aqueous base solution comprises water, and a base comprising sodium hydroxide, potassium oxide, sodium carbonate, potassium carbonate, ammonium hydroxide, ammonium carbonate, sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate or urea. EXAMPLE - Ferrous sulfate heptahydrate (145 g) was dissolved in deionized (DI) water (365 ml). Aluminum nitrate nonahydrate (10.5 g) was dissolved in DI water (40 ml). The ferrous sulfate heptahydrate solution and the aluminum nitrate nonahydrate solution were combined, and 15.5% copper (11.8 g) and 15.5% zinc nitrate solutions (5.2 g) were mixed with the ferrous sulfate and aluminum nitrate solutions. The mixed solution was then added into 10% sodium hydroxide solution (550 ml) over 30 minutes, with stirring. The solution was heated to 65 degrees C and maintained for at least two hours. The resulting suspension was filtered. The precipitate was washed 4 times with DI water followed by drying at 110 degrees C for four hours. The dried powder was calcined at 400 degrees C for approximately three hours and the powder was then mixed with graphite (1.5 g) to give the catalyst.