A Novel LaAlO3 Perovskite with Large Surface Area Supported Ni-Based Catalyst for Methane Dry Reforming

Ma, Yujie; Su, Peng; Ge, Yizhao; Wang, Fangwai; Xue, Ruixue; Wang, Zijun; Li, Yongsheng

doi:10.1007/s10562-021-03910-3

Cited by 17 publications

(9 citation statements)

References 41 publications

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“…As shown in Figure 3, in all samples, the adsorption‐desorption curves have typical type IV isotherms with N 2 hysteresis loops, indicating that all materials are mesoporous materials [17] . Due to the addition of oleic acid, the Ni active components are more uniformly dispersed in the mesoporous material.…”

Section: Resultsmentioning

confidence: 80%

“…As shown in Figure 3, in all samples, the adsorption-desorption curves have typical type IV isotherms with N 2 hysteresis loops, indicating that all materials are mesoporous materials. [17] Due to the addition of oleic acid, the Ni active components are more uniformly dispersed in the mesoporous material. Since the VSiO 2 has a layered mesoporous structure, some Ni nanoparticles are attached in the catalyst pores and interlayer spacing, which will increase the interaction between the support and the active components.…”

Section: Brunauer-emmett-teller Analysis Of the Catalystmentioning

confidence: 99%

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Preparation of Vermiculite‐based Molecular Sieve‐Supported Ni‐Co Alloy Catalyst Assisted by Oleic Acid and Application in Dry Reforming of Methane

et al. 2022

ChemistrySelect

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In this work, microporous vermiculite-based molecular sieves were etched into mesoporous vermiculite-based molecular sieves by alkaline solution, and the mesoporous vermiculitebased molecular sieves were supported by Ni or Ni-Co alloy active components by oleic acid-assisted method and impregnation method, respectively. And prepared catalysts were applied to the dry reforming of methane (DRM) reaction. Under the reaction conditions of T = 750 °C and GHSV = 30000 mL/ (h g cat ), the conversion rate of CO 2 and CH 4 of the Ni-Co-oa/ VSiO 2 bimetallic catalyst reached 84.7 % and 71.9 %, respectively. According to the analysis of the relevant characterization results, the Ni-Co-oa/VSiO 2 catalyst has more nickel active sites and stronger interaction between metal and support due to the addition of oleic acid. Therefore, Ni-Co-oa/VSiO 2 has better catalytic reactivity and stability.

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Section: Resultsmentioning

confidence: 80%

Section: Brunauer-emmett-teller Analysis Of the Catalystmentioning

confidence: 99%

Preparation of Vermiculite‐based Molecular Sieve‐Supported Ni‐Co Alloy Catalyst Assisted by Oleic Acid and Application in Dry Reforming of Methane

et al. 2022

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“…LaAl 0.95 Cr 0.05 O 3 is a red pigment . Owing to its thermal stability, LMA is found in catalyst support materials designed for methane combustion, pyrolysis, reforming reactions, − and automotive exhaust catalysis. ,, On its own, it is a catalyst for oxidation, oxidative methane coupling, ,− and photocatalytic degradation of methylene blue . A perovskite of nominal composition LaAl 0.5 Mn 0.5 O 2.75 holds promise as an electrocatalytic anode in a solid-oxide fuel cell for the oxidative coupling of methane.…”

Section: Lanthanum Monoaluminate (Lma)mentioning

confidence: 99%

“…A range of alternative methods was attempted. These also aimed at avoiding excessive calcination temperatures and at improving the characteristics of the product. , , ,, Procedures used include chelating of the precursor ions (e.g., with citric acid), polymerized-chelate methods (Pechini method), ,, hard-, soft-, and biotemplating, ,, combustion synthesis, coprecipitation, sol–gel processing, synthesis in microemulsions, sonochemistry, and solvo/hydrothermal treatment. Comparative details on these methods can be found elsewhere. ,, , , A relatively new technique applied to the production of perovskites is the molten-salt process (see further below) .…”

Section: Lanthanum Monoaluminate (Lma)mentioning

confidence: 99%

La-Doped Alumina, Lanthanum Aluminate, Lanthanum Hexaaluminate, and Related Compounds: A Review Covering Synthesis, Structure, and Practical Importance

Heveling

2023

Ind. Eng. Chem. Res.

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Advanced materials based on lanthanum–aluminum oxides are useful for many practical applications, not the least in catalysis, energy conversion and energy storage systems designed for a sustainable world economy. The three main La–Al–O (LAO) combinations of commercial interest are La-doped aluminas (LDA), lanthanum monoaluminate (LMA, a perovskite), and lanthanum hexaaluminate (LHA). Usually, the literature treats doped aluminas, perovskites, and hexaaluminates separately. The current review tries to identify common trends and features with respect to structure, synthesis, and applications of LAOs, which should lead to a more holistic understanding of their chemistry. This, in turn, should trigger innovative ideas with respect to new or improved applications. Apart from a variety of uses at low temperatures, the main advantages of LDA, LMA, LHA, and related compounds are their high-temperature stability and the extended applicability that comes with it.

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“…For example, Joo et al used atomic layer deposition (ALD)-combined topotactic exsolution method to obtain Ni-Fe alloy (Joo et al, 2020), in which raw materials are La 0.6 Sr 0.2 Ti 0.85 Ni 0.15 O 3-δ and Fe 2 O 3 . The lower Ni-Fe alloy formation energy (-0.43 eV) enhanced the catalytic activity of DRM, prolonging its stability to 410 h (Joo et al, 2020;Ma et al, 2022). Figure 10 shows the process of conventional and topotactic exsolution via ALD.…”

Section: Co 2 Reforming Of Chmentioning

confidence: 99%

Emerging natural and tailored perovskite-type mixed oxides–based catalysts for CO2 conversions

et al. 2022

Front. Chem.

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The rapid economic and societal development have led to unprecedented energy demand and consumption resulting in the harmful emission of pollutants. Hence, the conversion of greenhouse gases into valuable chemicals and fuels has become an urgent challenge for the scientific community. In recent decades, perovskite-type mixed oxide-based catalysts have attracted significant attention as efficient CO2 conversion catalysts due to the characteristics of both reversible oxygen storage capacity and stable structure compared to traditional oxide-supported catalysts. In this review, we hand over a comprehensive overview of the research for CO2 conversion by these emerging perovskite-type mixed oxide-based catalysts. Three main CO2 conversions, namely reverse water gas shift reaction, CO2 methanation, and CO2 reforming of methane have been introduced over perovskite-type mixed oxide-based catalysts and their reaction mechanisms. Different approaches for promoting activity and resisting carbon deposition have also been discussed, involving increased oxygen vacancies, enhanced dispersion of active metal, and fine-tuning strong metal-support interactions. Finally, the current challenges are mooted, and we have proposed future research prospects in this field to inspire more sensational breakthroughs in the material and environment fields.

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A Novel LaAlO3 Perovskite with Large Surface Area Supported Ni-Based Catalyst for Methane Dry Reforming

Cited by 17 publications

References 41 publications

Preparation of Vermiculite‐based Molecular Sieve‐Supported Ni‐Co Alloy Catalyst Assisted by Oleic Acid and Application in Dry Reforming of Methane

Preparation of Vermiculite‐based Molecular Sieve‐Supported Ni‐Co Alloy Catalyst Assisted by Oleic Acid and Application in Dry Reforming of Methane

La-Doped Alumina, Lanthanum Aluminate, Lanthanum Hexaaluminate, and Related Compounds: A Review Covering Synthesis, Structure, and Practical Importance

Emerging natural and tailored perovskite-type mixed oxides–based catalysts for CO2 conversions

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