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dc.contributor.authorRajabi, Zahra
dc.contributor.authorJones, Li
dc.contributor.authorMartinelli, Michela
dc.contributor.authorQian, Dali
dc.contributor.authorCronauer, Donald C.
dc.contributor.authorKropf, A. Jeremy
dc.contributor.authorWatson, Caleb D.
dc.contributor.authorJacobs, Gary
dc.date.accessioned2021-09-25T23:33:50Z
dc.date.available2021-09-25T23:33:50Z
dc.date.issued9/14/2021
dc.identifierdoi: 10.3390/catal11091104
dc.identifier.citationCatalysts 11 (9): 1104 (2021)
dc.identifier.urihttps://hdl.handle.net/20.500.12588/688
dc.description.abstractThe decarboxylation pathway in ethanol steam reforming ultimately favors higher selectivity to hydrogen over the decarbonylation mechanism. The addition of an optimized amount of Cs to Pt/m-ZrO<sub>2</sub> catalysts increases the basicity and promotes the decarboxylation route, converting ethanol to mainly H<sub>2</sub>, CO<sub>2</sub>, and CH<sub>4</sub> at low temperature with virtually no decarbonylation being detected. This offers the potential to feed the product stream into a conventional methane steam reformer for the production of hydrogen with higher selectivity. DRIFTS and the temperature-programmed reaction of ethanol steam reforming, as well as fixed bed catalyst testing, revealed that the addition of just 2.9% Cs was able to stave off decarbonylation almost completely by attenuating the metallic function. This occurs with a decrease in ethanol conversion of just 16% relative to the undoped catalyst. In comparison with our previous work with Na, this amount is—on an equivalent atomic basis—just 28% of the amount of Na that is required to achieve the same effect. Thus, Cs is a much more efficient promoter than Na in facilitating decarboxylation.
dc.titleInfluence of Cs Promoter on Ethanol Steam-Reforming Selectivity of Pt/m-ZrO2 Catalysts at Low Temperature
dc.date.updated2021-09-25T23:33:52Z
dc.description.departmentBiomedical and Chemical Engineering


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