SciELO - Scientific Electronic Library Online

vol.25 issue2Chemical durability of the Li2O-ZrO2-BaO-SiO2 glass-ceramic treated with acidic and basic solution author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Química Nova

Print version ISSN 0100-4042On-line version ISSN 1678-7064


ARAUJO, Genira Carneiro de; SOUZA, Alexilda Oliveira de; RANGEL, Maria do Carmo  and  PINHEIRO, Eduardo Antônio. The effect of temperature on the catalytic performance of iron oxide with copper and aluminum. Quím. Nova [online]. 2002, vol.25, n.2, pp.181-185. ISSN 0100-4042.

Aluminum and copper doped hematite was evaluated in the high temperature shift (HTS) reaction at several temperatures in order to find catalysts that can work in different operational conditions. It was found that the catalysts work in kinetic regime in the range of 300-400 oC. Both copper and aluminum increases the activity and selectivity. Aluminum acts as textural promoter whereas copper acts as structural one. The most promising catalyst is that with both copper and aluminum which showed higher activity and selectivity than a commercial sample. This catalyst has the advantages of being non toxic and can work at low temperatures.

Keywords : hydrogen production; iron oxides; CO conversion.

        · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License