Hydrogen generation by methanol steam reforming process by delafossite-type CuYO2 nanopowder catalyst

Yu, Chung‐Lun; Sakthinathan, Subramanian; Chen, Shengyu; Yu, Biao; Chiu, Te‐Wei; Dong, Chaofang

doi:10.1016/j.micromeso.2021.111305

Cited by 12 publications

(7 citation statements)

References 49 publications

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“…Figure 12 presents the H 2 production rates of the GNP-prepared ZnO-ZnFe 2 O 4 and ZnFe 2 O 4 powders; the CuCrO 2 bulk powder; the GNP0prepared CuCrO 2 , CuFeO 2 , and CuFeO 2 -CeO 2 nanopowders; and the commercial catalyst. According to the results, the catalytic performance of the ZnO-ZnFe 2 O 4 catalyst powders was higher than those of the aforementioned catalysts [48][49][50]. Due to the flammability and instability of hydrogen, SRM might entail some risks at high temperatures.…”

Section: H 2 Production By the Steam Reforming Of Methanol (Srm)mentioning

confidence: 95%

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ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

Hsu

Sakthinathan

et al. 2023

Catalysts

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In this study, ZnFe2O4 and ZnO-ZnFe2O4 catalysts were prepared using the glycine–nitrate process (GNP). The prepared ZnFe2O4 and ZnO-ZnFe2O4 catalyst powders were characterized using a scanning electron microscope, transmission electron microscope, XRD diffraction studies, and selected area diffraction pattern studies. In addition, the specific surface area was measured using a Brunauer–Emmett–Teller specific surface area analysis. The hydrogen reduction in different temperature ranges was analyzed using the H2 temperature-programmed reduction technique. The specific surface area of the ZnFe2O4 was 5.66 m2/g, and the specific surface area of the ZnO-ZnFe2O4 was 8.20 m2/g at a G/N ratio of 1.5 and at a G/N ratio of 1.7, respectively. The specific surface area of the ZnFe2O4 was 6.03 m2/g, and the specific surface area of the ZnO-ZnFe2O4 was 11.67 m2/g. The ZnFe2O4 and ZnO-ZnFe2O4 were found to have the best catalytic effect at 500 °C. In particular, the highest H2 generation rate of the ZnO-ZnFe2O4 (GN = 1.7) at 500 °C was 7745 mL STP min−1 g-cat−1. Moreover, the ZnO-ZnFe2 O4 catalyst demonstrated good H2 selectivity and stability during the process of steam reforming methanol. Therefore, the ZnO-ZnFe2O4 catalyst powder exhibited high catalytic activity due to the good dispersibility of the ZnO, which increased the specific surface area of the catalyst. In the future, the catalyst can be applied to the steam reforming of methanol for industrial purposes.

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Section: H 2 Production By the Steam Reforming Of Methanol (Srm)mentioning

confidence: 95%

“…Figure12. The H2 production rates of the ZnFe2O4 and ZnO-ZnFe2O4 catalyst powders prepared b the GNP at a N2 flow rate of 30 sccm in the SRM process and the H2 production rates of CuCrO bulk powder; the CuCrO2, CuFeO2, and CuFeO2-CeO2 nanopowders prepared by the GNP; and commercial catalyst[48][49][50].…”

mentioning

confidence: 99%

ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

Hsu

Sakthinathan

et al. 2023

Catalysts

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“…Kinetic analysis suggests that the selectivity to CO can be lowered by increasing contact time. Chiu et al studied a series of Cu-containing delafossite materials, including CuCrO 2 , 190,191 CuCr x Fe 1− x O 2 , 192 CuFeO 2 –CeO 2 , 193 and CuYO 2 194 in MSR. The promotion effect of In 2 O 3 on Cu/SiO 2 was studied by Santo et al 195 The CO selectivity drops from 0.37% to 0.08% at 260 °C while the H 2 formation rate increases from 237 mmol h −1 g cat −1 to 301 mmol h −1 g cat −1 with the addition of 1 wt% In.…”

Section: Methanolmentioning

confidence: 99%

Catalytic hydrogen storage in liquid hydrogen carriers

Han

Chai

et al. 2023

EES. Catal.

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“…However, it uses a lot of energy, and this is a serious concern [ 11 ]. Photocatalytic water splitting [ 12 ] and photocatalytic reforming of bio-alcohols [ 13 ] are two promising methods for the sustainable production of H 2 , and the second process combines simultaneous H 2 production [ 14 ]. H 2 can be produced on a large scale through numerous technical processes.…”

Section: Introductionmentioning

confidence: 99%

Noble Metals Deposited LaMnO3 Nanocomposites for Photocatalytic H2 Production

et al. 2022

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Due to the growing demand for hydrogen, the photocatalytic hydrogen production from alcohols present an intriguing prospect as a potential source of low-cost renewable energy. The noble metals (Ag, Au, Pd and Pt) deposited LaMnO3 nanocomposites were synthesized by a non-conventional green bio-reduction method using aqueous lemon peel extract, which acts as both reducing and capping agent. The successful deposition of the noble metals on the surface of LaMnO3 was verified by using powder XRD, FTIR, TEM, N2-physisorption, DR UV-vis spectroscopy, and XPS techniques. The photocatalytic activity of the synthesized nanocomposites was tested for photocatalytic H2 production under visible light irradiation. Different photocatalytic reaction parameters such as reaction time, pH, catalyst mass and reaction temperature were investigated to optimize the reaction conditions for synthesized nanocomposites. Among the synthesized noble metal deposited LaMnO3 nanocomposites, the Pt-LaMnO3 nanocomposite offered superior activity for H2 production. The enhanced photocatalytic activity of the Pt-LaMnO3 was found as a result from low bandgap energy, high photoelectrons generation and enhanced charge separation due to deposition of Pt nanoparticles. The effective noble metal deposition delivers a new route for the development of plasmonic noble metal-LaMnO3 nanocomposites for photocatalytic reforming of aqueous methanol to hydrogen.

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Hydrogen generation by methanol steam reforming process by delafossite-type CuYO2 nanopowder catalyst

Cited by 12 publications

References 49 publications

ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

Catalytic hydrogen storage in liquid hydrogen carriers

Noble Metals Deposited LaMnO3 Nanocomposites for Photocatalytic H2 Production

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