Biologically bound nickel as a sustainable catalyst for the selective hydrogenation of cinnamaldehyde

Johar, Parul; McElroy, Con Robert; Rylott, Elizabeth L.; Matharu, Avtar S.; Clark, James H.

doi:10.1016/j.apcatb.2022.121105

Cited by 20 publications

(8 citation statements)

References 47 publications

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“…The metallic nickel was found after reduction, as shown by the diffraction peak at 44.3°. 44 Meanwhile, the particle size of Ni metal was estimated by the Scherrer equation, as shown in Table 1; the NM1C catalyst presented the smallest Ni particle size (20.6 nm), while larger particle sizes were observed near 26.2 and 29.7 nm for NM3C and NM6C, respectively. Besides, as compared to the calcined catalysts, the diffraction peaks of hydrogen atmosphere.…”

Section: Characterization Of Reduced Ni-mg-cr Catalystsmentioning

confidence: 99%

“…Characterization of Reduced Ni-Mg-Cr Catalysts.To investigate the actual status of the reaction interface in catalysts, these Ni-Mg-Cr catalysts were reduced in hydrogen at 700 °C and characterized by XRD, as shown in Figure1D. The metallic nickel was found after reduction, as shown by the diffraction peak at 44.3° 44. Meanwhile, the particle size of Ni metal was estimated by the Scherrer equation, as shown in Table1; the NM1C catalyst presented the smallest Ni particle size (20.6 nm), while larger particle sizes were observed near 26.2 and 29.7 nm for NM3C and NM6C, respectively.…”

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confidence: 99%

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Interface of Ni-MgCr₂O₄ Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Ding

Sun

et al. 2023

ACS Catal.

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Autothermal reforming (ATR) is an effective route for hydrogen production from acetic acid (HAc) derived from biomass. Ni-based catalysts are promising candidates for ATR due to their high activity, but coke formation hinders their practical application. To tackle this issue, a series of Ni-Mg-Cr catalysts with supports of Cr 2 O 3 or MgCr 2 O 4 were prepared by the sol−gel method and evaluated in ATR. The results indicated that as compared to the Ni-Cr 2 O 3 catalyst, the Ni 0.25 Mg 0.75 CrO 3.5±δ catalyst with MgCr 2 O 4 support presented higher catalytic performance: the conversion rate of acetic acid was stable near 100%, with hydrogen yield reaching 2.64 mol-H 2 /mol-HAc during a 40 h ATR test, while there was no obvious coking. It was found that Mg modification was prone to constituting a stable MgCr 2 O 4 spinel support with a high specific surface area for adsorption and transformation of HAc; however, for catalysts with excessive Mg addition, namely, Ni 0.43 Mg 2.56 CrO 4.5±δ and Ni 0.69 Mg 5.31 CrO 7.5±δ , low reactivity was found and was linked to constraining of Ni from the solid solution of Mg(Ni)O. Density functional theory (DFT) calculations reveal that during the ATR process, Ni 4 -MgCr 2 O 4 presents a low energy barrier for the overall transformation path and a high stabilization of reaction intermediates; furthermore, as compared to Ni 4 -Cr 2 O 3 , oxidation of C* species by O* and OH* is significantly accelerated on Ni 4 -MgCr 2 O 4 due to the considerably decreased energy barriers, thus eliminating carbon deposition and improving catalytic activity.

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Section: Characterization Of Reduced Ni-mg-cr Catalystsmentioning

confidence: 99%

mentioning

confidence: 99%

Interface of Ni-MgCr₂O₄ Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Ding

Sun

et al. 2023

ACS Catal.

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“…93 Metal-laden biochar can be used as a supercapacitor or catalyst. [94][95][96] A broad range of reactions can be catalyzed with metal-laden biochar, including transesterification for biodiesel production, biomass hydrogenation and biomass hydrolysis. [96][97][98][99] Developing an integrative process entailing metal sorption from real matrices and applying the resultant biochar might be a sustainable metal recovery methodology.…”

Section: Bioremediation and Metal Recoverymentioning

confidence: 99%

Metal biosorption onto non-living algae: a critical review on metal recovery from wastewater

2023

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“…[16] Ni-based catalyst is the best substitute for palladium-based catalysts [16][17] for breaking the saturation of C=C in the selective hydrogenation of α, β-unsaturated aldehydes. HCAL is usually formed preferentially during the hydrogenation of CAL over the Ni-based catalysts, [18] because the saturation of C=C is thermodynamically more favorable than C=O. [19] However, based on the difference from the Ni content in the catalyst, the size and shape of Ni nanoparticles, and the metal-support interaction, a variety of products can be produced on Ni-based catalysts.…”

Section: Introductionmentioning

confidence: 99%

Ni‐Ti Intercalated and Supported Bentonite for Selective Hydrogenation of Cinnamaldehyde

Luo

et al. 2023

ChemPhysChem

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Ni-Ti intercalated bentonite catalysts (Ni-Ti-bentonite) and Ni-TiO 2 supported bentonite catalysts (Ni-TiO 2 /bentonite) were prepared, and the effects of Ni-Ti supported and intercalated bentonite on the selective hydrogenation of cinnamaldehyde were investigated. Ni-Ti intercalated bentonite enhanced the Brønsted acid sites strength, decreased the acid amount and Lewis's acid sites strength, which inhibited the activation of the C=O bond and contributed to selective hydrogenation of the C=C bond. When Ni-TiO 2 was supported on bentonite, the acid amount and Lewis's acid strength of the catalyst increased, providing additional adsorption sites and increased the acetals byproducts. Due to the higher surface area, mesoporous volume, and suitable acidity, compared with Ni-TiO 2 /bentonite in methanol solvent, 2 MPa, 120 °C for 1 h, Ni-Ti-bentonite exhibited a higher cinnamaldehyde (CAL) conversion of 98.8 %, as well as a higher hydrocinnamaldehyde (HCAL) selectivity of 95 %, and no acetals were found in the product.

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Biologically bound nickel as a sustainable catalyst for the selective hydrogenation of cinnamaldehyde

Cited by 20 publications

References 47 publications

Interface of Ni-MgCr₂O₄ Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Interface of Ni-MgCr₂O₄ Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Metal biosorption onto non-living algae: a critical review on metal recovery from wastewater

Ni‐Ti Intercalated and Supported Bentonite for Selective Hydrogenation of Cinnamaldehyde

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Biologically bound nickel as a sustainable catalyst for the selective hydrogenation of cinnamaldehyde

Cited by 20 publications

References 47 publications

Interface of Ni-MgCr2O4 Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Interface of Ni-MgCr2O4 Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Metal biosorption onto non-living algae: a critical review on metal recovery from wastewater

Ni‐Ti Intercalated and Supported Bentonite for Selective Hydrogenation of Cinnamaldehyde

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Product

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Interface of Ni-MgCr₂O₄ Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species

Interface of Ni-MgCr₂O₄ Spinel Promotes the Autothermal Reforming of Acetic Acid through Accelerated Oxidation of Carbon-Containing Intermediate Species