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The effect of Fe2O3 crystal phases on CO2 hydrogenation.

ABSTRACT: The effect of Fe2O3 crystal phases on their performance in CO2 hydrogenation was studied. ?-Fe2O3 crystal was prepared by precipitation method from Fe(NO3)3·9H2O and (NH4)2CO3, and ?-Fe2O3 was prepared by grinding Fe(NO3)3·9H2O and L(+)-Tartaric acid in agate mortar completely. The crystal phases of Fe2O3 influence the distribution of promoter Zn, K and Cu on catalysts. The dispersity of K on ?-Fe2O3 surface is higher than ?-Fe2O3. On the contrary, Cu and Zn are more dispersive on ?-Fe2O3 surface than ?-Fe2O3. The catalyst in ?-Fe2O3 phase is easily reduced relative to the catalyst in ?-Fe2O3 phase. The former presents higher CO2 conversion and C2+ hydrocarbon selectivity than the latter in CO2 hydrogenation.

SUBMITTER: Ning W

PROVIDER: S-EPMC5555619 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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The effect of Fe2O3 crystal phases on CO2 hydrogenation.

Ning Wensheng W Wang Tianqi T Chen Hongxian H Yang Xiazhen X Jin Yangfu Y

PloS one 20170814 8

The effect of Fe2O3 crystal phases on their performance in CO2 hydrogenation was studied. α-Fe2O3 crystal was prepared by precipitation method from Fe(NO3)3·9H2O and (NH4)2CO3, and γ-Fe2O3 was prepared by grinding Fe(NO3)3·9H2O and L(+)-Tartaric acid in agate mortar completely. The crystal phases of Fe2O3 influence the distribution of promoter Zn, K and Cu on catalysts. The dispersity of K on γ-Fe2O3 surface is higher than α-Fe2O3. On the contrary, Cu and Zn are more dispersive on α-Fe2O3 surfac ...[more]

PMID: 28806421

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