Dependence of the CeO2 morphology in CuO/CeO2 catalysts for the oxidative steam reforming of methanol

Eaimsumang, Srisin; Petchakan, Sivinee; Luengnaruemitchai, Apanee

doi:10.1007/s11144-019-01570-4

Cited by 7 publications

(1 citation statement)

References 58 publications

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“…The POM reaction can lead to several products, such as H 2 , CO, CO 2 and CH 4 etc., depending on the catalyst composition, reaction temperature and conversion degree. A variety of heterogeneous catalysts with transition metal such as Cu and precious metal Au as active components have been recently reported for oxy-steam reforming of methanol [11][12][13]. Iron and copper oxides catalysts have already been commercialized for hydrogen production via POM reaction [14,15].…”

Section: Introductionmentioning

confidence: 99%

Au/Ce0.5Zr0.5O2 catalysts for hydrogen production via partial oxidation of methanol

Hernández

Wang

Valenzuela

et al. 2020

Reac Kinet Mech Cat

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Effects of ZrO 2 addition to the Au/CeO 2 and the pretreatment methods of the catalysts on the partial oxidation of methanol (POM) were investigated. ZrO 2 addition to Au/CeO 2 catalyst led to (i) formation of a Ce 0.5 Zr 0.5 O 2 solid solution; (ii) enhancement of lattice oxygen reducibility of the Ce 0.5 Zr 0.5 O 2 support; and (iii) formation of surface Au δ+ (δ = 1 or 3) species coexisting with Au 0 nanoparticles. Catalytic evaluation showed that the highest hydrogen selectivity was achieved over Au/Ce 0.5 Zr 0.5 O 2 at 270 °C. The reductive pretreatment could improve the hydrogen selectivity and methanol conversion as well. At higher reaction temperature Au δ+ clusters in Au/ Ce 0.5 Zr 0.5 O 2 catalyst activated the O-H bond in the adsorbed CH 3 -O δ− -H δ+ due to the interaction between Au δ+ and O δ− -H δ+ of methanol that favors the release of H + proton, and thus benefits the H 2 selectivity enhancement. Some oxygen vacancies in the catalysts evidenced by XPS analysis participated in the formation of active surface oxygen species that promoted CO oxidation to CO 2 on Au 0 nanoparticles A reaction mechanism of POM involving in the methanol surface adsorption on Au δ+ species, O-H bond activation, and CO oxidation on Au 0 nanoparticles and oxygen defects was proposed.

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Section: Introductionmentioning

confidence: 99%

Au/Ce0.5Zr0.5O2 catalysts for hydrogen production via partial oxidation of methanol

Hernández

Wang

Valenzuela

et al. 2020

Reac Kinet Mech Cat

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Hydrogen generation from methanol reforming for fuel cell applications: A review

Sun

2020

J. Cent. South Univ.

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An efficient catalyst of Cu/MIL-101 modified with CeO2 for the conversion of biomass-derived glycerol with aniline to 3-methylindole

Ren

et al. 2020

Catalysis Communications

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Dependence of the CeO2 morphology in CuO/CeO2 catalysts for the oxidative steam reforming of methanol

Cited by 7 publications

References 58 publications

Au/Ce0.5Zr0.5O2 catalysts for hydrogen production via partial oxidation of methanol

Au/Ce0.5Zr0.5O2 catalysts for hydrogen production via partial oxidation of methanol

Hydrogen generation from methanol reforming for fuel cell applications: A review

An efficient catalyst of Cu/MIL-101 modified with CeO2 for the conversion of biomass-derived glycerol with aniline to 3-methylindole

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