Effect of Cobalt Particle Size on Acetone Steam Reforming

Sun, Junming; Zhang, He; Yu, Ning; Davidson, Stephen; Wang, Yong

doi:10.1002/cctc.201500336

Title: Effect of Cobalt Particle Size on Acetone Steam Reforming

Journal Article · Thu Jun 11 00:00:00 EDT 2015 · ChemCatChem

DOI:https://doi.org/10.1002/cctc.201500336· OSTI ID:1785751

Sun, Junming; Zhang, He; Yu, Ning; Davidson, Stephen; Wang, Yong

Abstract Carbon‐supported cobalt nanoparticles with different particle sizes were synthesized and characterized by complementary characterization techniques such as X‐ray diffraction, N ₂ sorption, acetone temperature‐programmed desorption, transmission electron microscopy, and CO chemisorption. Using acetone steam reforming reaction as a probe reaction, we revealed a volcano‐shape curve of the intrinsic activity (turnover frequency of acetone) and the CO ₂ selectivity as a function of the cobalt particle size with the highest activity and selectivity observed at a particle size of approximately 12.8 nm. Our results indicate that the overall performance of acetone steam reforming is related to a combination of particle‐size‐dependent acetone decomposition, water dissociation, and the oxidation state of the cobalt nanoparticles.

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Sponsoring Organization:: USDOE

OSTI ID:: 1785751

Journal Information:: ChemCatChem, Journal Name: ChemCatChem Vol. 7 Journal Issue: 18; ISSN 1867-3880

Publisher:: Wiley Blackwell (John Wiley & Sons)Copyright Statement

Country of Publication:: Germany

Language:: English

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Cited by: 11 works

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References (25)

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