Catalytic performance of hydrotalcite-like-compound-derived Ni-metal alloy catalyst for toluene reforming with gasoline engine exhaust model gas as reforming agent

Betchaku, Mii; Nakagawa, Yoshinao; Tamura, Masazumi; Yabushita, Mizuho; Miura, Yasutomo; Iida, Shinya; Tomishige, Keiichi

doi:10.1016/j.fuproc.2021.106837

Cited by 16 publications

(8 citation statements)

References 77 publications

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“…This phenomenon was similar to the former observations of NiFe/Al 2 O 3 and NiFe/Mg/Al catalysts. 42–46 Therefore, it should be noted that the α-Fe 2 O 3 and NiO contained the calcined bimetallic catalysts were transformed into NiFe alloy, Fe, and Ni under a supply of H 2 gas at a reduction temperature of 500 °C.…”

Section: Resultsmentioning

confidence: 99%

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

Kalong

Srifa

Ratchahat

et al. 2023

Sustainable Energy Fuels

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Section: Resultsmentioning

confidence: 99%

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

Kalong

Srifa

Ratchahat

et al. 2023

Sustainable Energy Fuels

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“…The calculated Ni/Fe ratios (1.14–3.96) in the alloys were close to the measured values (1.1–3.7) in Table S3 , indicating that Ni and Fe could be reduced simultaneously, forming an alloy. 6 The higher Ni/Fe ratios in alloys compared to bulk catalysts indicate that Ni was reduced more than Fe. Additionally, NiFe alloys (especially in the Ni4Fe1-R catalyst) presented broader diffraction peaks with lower intensities than bare Ni, which may be attributed to the distortion of the lattice and the underlying peak of the amorphous surface.…”

Section: Resultsmentioning

confidence: 99%

“…composition. 6 Based on the above analysis, the structural evolution of the Ni−Fe−Mg−Al LDH precursor to periclaselike mixed oxides by calcination at 600 °C and then to NiFe alloy NPs anchored on periclase-phase (Mg, Al)O x nanosheets by H 2 reduction at 800 °C is illustrated in Scheme 1.…”

Section: Crystalline Phase and Element Compositionsmentioning

confidence: 99%

Plasma-Catalytic CO₂ Reforming of Toluene over Hydrotalcite-Derived NiFe/(Mg, Al)O_x Catalysts

Liu

Dai

Das

et al. 2023

JACS Au

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The removal of tar and CO2 in syngas from biomass gasification is crucial for the upgrading and utilization of syngas. CO2 reforming of tar (CRT) is a potential solution which simultaneously converts the undesirable tar and CO2 to syngas. In this study, a hybrid dielectric barrier discharge (DBD) plasma-catalytic system was developed for the CO2 reforming of toluene, a model tar compound, at a low temperature (∼200 °C) and ambient pressure. Periclase-phase (Mg, Al)O x nanosheet-supported NiFe alloy catalysts with various Ni/Fe ratios were synthesized from ultrathin Ni–Fe–Mg–Al hydrotalcite precursors and employed in the plasma-catalytic CRT reaction. The result demonstrated that the plasma-catalytic system is promising in promoting the low-temperature CRT reaction by generating synergy between DBD plasma and the catalyst. Among the various catalysts, Ni4Fe1-R exhibited superior activity and stability because of its highest specific surface area, which not only provided sufficient active sites for the adsorption of reactants and intermediates but also enhanced the electric field in the plasma. Furthermore, the stronger lattice distortion of Ni4Fe1-R provided more isolated O2– for CO2 adsorption, and having the most intensive interaction between Ni and Fe in Ni4Fe1-R restrained the catalyst deactivation induced by the segregation of Fe from the alloy to form FeO x . Finally, in situ Fourier transform infrared spectroscopy combined with comprehensive catalyst characterization was used to elucidate the reaction mechanism of the plasma-catalytic CRT reaction and gain new insights into the plasma-catalyst interfacial effect.

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“…, Pt, Rh) and transition metals ( e.g. , Fe, Ni), because of their high cleavage activity of the C–C/C–O bond. , However, such high temperatures render a high-energy-consuming thermal process, which is cost-prohibitive for commercialization. Therefore, enhancing the tar reduction ability under mild temperatures ( e.g.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Low-temperature Catalytic Decomposition Performance of Naphthalene over Hydrothermal Carbon-based Nanomaterials with a Hierarchical Heterostructure

Gai

Hong-xia

Liu

et al. 2022

ACS Appl. Energy Mater.

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A series of hydrothermal carbon-supported nickel catalysts with an Ageratum conyzoides L.-like superstructure derived from green and sustainable cellulose (Ni x /N y HC-SF z ) were fabricated by a facile soft template/nitrogen co-directed hydrothermal assembly strategy. The soft template and nitrogen doping into the hydrothermal carbon framework not only dictated specific morphological evolution for creating the architecture with a mesoporous texture but also significantly tuned the electronic properties of the composites with strong metal−support interactions. Benefiting from these unique characteristics as well as systematic control of the experimental conditions, the hierarchical structured Ni x /N y HC-SF z composites served as promising catalysts with desirable low-temperature tar reforming activity and long-term durability. In particular, the N 0.2 /N 2 HC-SF 3 composite exhibited a maximum naphthalene conversion of 87.6%, while the N 0.2 / N 4 HC-SF 3 composite demonstrated an optimum H 2 selectivity of 81.2% at a mild temperature of 600 °C. For the Ni 0.2 /N 2 HC-SF 3 composite, more than 92.8% of the initial naphthalene conversion and 86.5% of initial H 2 selectivity were still retained after 10 consecutive cycles. Given the chemical tunability of both active metal species and precursory carbon sources in this fabrication system, we envisioned that the general design principle of low-cost yet high-performance nonprecious nickel catalysts in this work could be extended to the construction of other biochar-based nanomaterials for specific catalytic applications.

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Catalytic performance of hydrotalcite-like-compound-derived Ni-metal alloy catalyst for toluene reforming with gasoline engine exhaust model gas as reforming agent

Cited by 16 publications

References 77 publications

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

Plasma-Catalytic CO₂ Reforming of Toluene over Hydrotalcite-Derived NiFe/(Mg, Al)O_x Catalysts

Enhanced Low-temperature Catalytic Decomposition Performance of Naphthalene over Hydrothermal Carbon-based Nanomaterials with a Hierarchical Heterostructure

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Catalytic performance of hydrotalcite-like-compound-derived Ni-metal alloy catalyst for toluene reforming with gasoline engine exhaust model gas as reforming agent

Cited by 16 publications

References 77 publications

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

Plasma-Catalytic CO2 Reforming of Toluene over Hydrotalcite-Derived NiFe/(Mg, Al)Ox Catalysts

Enhanced Low-temperature Catalytic Decomposition Performance of Naphthalene over Hydrothermal Carbon-based Nanomaterials with a Hierarchical Heterostructure

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Plasma-Catalytic CO₂ Reforming of Toluene over Hydrotalcite-Derived NiFe/(Mg, Al)O_x Catalysts