Heterostructured Ni/NiO composite as a robust catalyst for the hydrogenation of levulinic acid to γ-valerolactone

Song, Song; Yao, Sikai; Cao, Jiahui; Lu, Da-Yong; Wu, Guangjun; Guan, Naijia; Li, Landong

doi:10.1016/j.apcatb.2017.05.073

Cited by 200 publications

(94 citation statements)

References 86 publications

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“…Heterostructured nanocatalysts also show promising performances. For example, Song and colleagues prepared Ni/NiO heterojunctions, which exhibit 18‐fold enhancement in levulinic acid conversion to GVL . They partially reduced NiO precursor at 200–300 °C to achieve heterojuncted structures.…”

Section: Figurementioning

confidence: 99%

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Jin

Fang

Wang

et al. 2018

The Chemical Record

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Conversion of biomass to chemicals provides essential products to human society from renewable resources. In this context, achieving atom‐economical and energy‐efficient conversion with high selectivity towards target products remains a key challenge. Recent developments in nanostructured catalysts address this challenge reporting remarkable performances in shape and morphology dependent catalysis by metals on nano scale in energy and environmental applications. In this review, most recent advances in synthesis of heterogeneous nanomaterials, surface characterization and catalytic performances for hydrogenation and oxidation for biorenewables with plausible mechanism have been discussed. The perspectives obtained from this review paper will provide insights into rational design of active, selective and stable catalytic materials for sustainable production of value‐added chemicals from biomass resources.

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Section: Figurementioning

confidence: 99%

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Jin

Fang

Wang

et al. 2018

The Chemical Record

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“…Levulinic acid (LA) is a platform chemical, the production of which has been paid increasing attention due to its extensive applications as a raw material/additive in cosmetic, medical, and fuel industries . Furthermore, LA can be upgraded to other valuable chemicals such as γ‐valerolactone, levulinic esters, 1,4‐pentanediol, and other value‐added chemicals that can be used in agricultural and cosmetic sectors . LA can be produced from hydrolysis of C6 or C5 sugars, the intermediate products from the hydrolysis of cellulose or hemicellulose in biomass .…”

Section: Introductionmentioning

confidence: 99%

Sulfated Zirconia with Different Crystal Phases for the Production of Ethyl Levulinate and 5‐Hydroxymethylfurfural

Shao

Sun

et al. 2019

Energy Tech

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Distinct crystal phases of an oxide affect the configuration of surface atoms, which might further affect coordination with sulfate during sulfonation for the preparation of SO42−/MxOy type of acid catalyst. Herein, such an effect is investigated with zirconia of the tetragonal or monoclinic phase as the model catalysts. The results show that sulfonation inhibits the transformation of zirconia from the tetragonal phase to the monoclinic phase, whereas the varied phase of zirconia also affects the bonding patterns of sulfate species with zirconia in sulfonation. The sulfated zirconia of monoclinic phase contains more abundant acidic sites and more Brønsted acid sites than that of sulfated zirconia of tetragonal phase. Consequently, the sulfated zirconia of monoclinic phase is more active than the sulfated zirconia of tetragonal phase for the conversion of furfuryl alcohol in ethanol and conversion of fructose in dimethyl sulfoxide, achieving the yield of ethyl levulinate of 96.4% and a high yield of 5‐hydroxymethylfurfural. The sulfated zirconia is not stable in protic solvent due to the leaching of sulfur species and the change in configurations of the sulfate species and the zirconium species, but in the aprotic solvent, they show good stability and recyclability.

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“…The s and p group metal oxides and the zeolites fall into this category. Alkali and alkaline earth metal oxides act as a base catalyst, and these are active and selective for dehydrogenation and isomerization reactions . The p ‐block metal oxides are mainly acid catalysts like alumina, silica, and silica‐alumina in their various modified forms and have been evaluated as a catalyst for alkylation, acylation, and cyclization reactions.…”

Section: Introductionmentioning

confidence: 99%

“…A semiconductor is a material that has electrical conductivity between those of a conductor and an insulator. Transition metal oxides have metal ion with a variable oxidation state …”

Section: Introductionmentioning

confidence: 99%

The Development of Mesoporous Ni‐Based Catalysts and Evaluation of Their Catalytic and Photocatalytic Applications

Kour¹,

Mishra

Sinha

et al. 2020

ChemistrySelect

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Porous Ni‐based catalysts have attracted extensive attention for a wide range of applications in energy production and environmental remediation due to controllable morphology, high dispersion. These properties are mainly governed by a number of parameters such as compositions, synthesis methods, their structural morphology, and surface area. Various efforts have made to develop unsupported template‐assisted catalysts with specific nanostructures and surface properties, a new approach in supramolecular chemistry. This review reports a detailed overview of the development of mesoporous nickel‐based catalysts for energy and environmental applications. This review also looks at recent advancements, synthesis routes for porous nickel‐based catalysts, and comparative study with the reported Ni‐based catalysts. This review addresses numerous characteristic reactions and processes in the utilization of organic wastes, highlighting the significance of developing porous, proficient, and stable Ni‐based catalysts.

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Heterostructured Ni/NiO composite as a robust catalyst for the hydrogenation of levulinic acid to γ-valerolactone

Cited by 200 publications

References 86 publications

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Sulfated Zirconia with Different Crystal Phases for the Production of Ethyl Levulinate and 5‐Hydroxymethylfurfural

The Development of Mesoporous Ni‐Based Catalysts and Evaluation of Their Catalytic and Photocatalytic Applications

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