Studies on ruthenium-tin boride catalysts I. Characterization

Deshpande, V. M.; Patterson, William R.; Narasimhan, C. S.

doi:10.1016/0021-9517(90)90226-a

Cited by 66 publications

(17 citation statements)

References 12 publications

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“…The addition of electropositive atom of Sn and B to Ru enhanced the dispersion of Ru and improved the electron density of Ru. The change of electron density Ru enhanced the affinity of Ru towards C=O bond of fatty acids which facilitated the reaction hydrogenation [12,13]. Similar results have been also reported on the hydrogenation of dodecanoic acid and palmitic acid at 300 ο C, 60 bar H2, within 4 h over Ru-Sn/Al2O3 and Rh-Sn/Al2O3 catalysts and produced lauryl alcohol and hexadecane-1-ol, respectively.…”

Section: Introductionsupporting

confidence: 81%

“…In previously published studies, several bimetallic alloy transition metal catalysts (e.g. Pd-M (M = Cu, Co, Ni) [10], Pd-Nb2O5 [11], RuSn [12] Rh-Sn [13], and Ru-Ge-B [14] have shown superior performance for the selective hydrogenation of fatty acids compared with their single metal counterpart. Huang et al [10] reported the catalytic performances of supported bimetallic Pd-M (M = Cu, Co, Ni) catalysts in hydrogenation of methyl palmitic in nheptane solvent at 270 o C, H2 55 bar within 7 h. Among these bimetallic catalysts, PdCu/diatomite with loading amount of 1 % (Pd/Cu = 3) displayed the highest catalytic performances in hydrogenation of palmitic acid (99 % conversion) giving 1-hexadecanol (83 % yield) [10].…”

Section: Introductionmentioning

confidence: 99%

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Selective Hydrogenation of Dodecanoic Acid to Dodecane-1-ol Catalyzed by Supported Bimetallic Ni-Sn Alloy

Rodiansono

Pratama

Astuti

et al. 2018

Bull. Chem. React. Eng. Catal.

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Selective hydrogenation of dodecanoic acid over supported bimetallic Ni-Sn alloy catalysts into dodecane-1-ol is demonstrated. Bimetallic nickel-tin supported on titanium oxide (Ni-Sn(1.5)/TiO2) and gamma-alumina (Ni-Sn(1.5)/-Al2O3); 1.5 = Ni/Sn molar ratio) were synthesized via hydrothermal method in a sealed-Teflon autoclave reactor at 150 o C for 24 h, then followed by reducing with hydrogen gas at 400 o C for 1.5 h. The synthesized catalysts were characterized by means of XRD, IC-AES, N2-adsorption (BET method), H2-chemisorption, and NH3-TPD. Bimetallic Ni-Sn(1.5)/TiO2 catalyst was found to be effective for hydrogenation of dodecanoic acid (>99 % conversion) to dodecane-1-ol (93% yield) at 160 o C, 30 bar H2, and 20 h and the highest dodecane-1-ol (97 % yield) was obtained at initial pressure of H2, 50 bar. An increase of reaction temperature slightly enhanced the degree of hydrodeoxygenation of dodecanoic acid to produce dodecane over both Ni-Sn(1.5)/TiO2 and Ni-Sn(1.5)/-Al2O3 catalysts.

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Section: Introductionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Selective Hydrogenation of Dodecanoic Acid to Dodecane-1-ol Catalyzed by Supported Bimetallic Ni-Sn Alloy

Rodiansono

Pratama

Astuti

et al. 2018

Bull. Chem. React. Eng. Catal.

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“…The highest selectivity for the catalyst reduced by NaBH 4 may be due to the presence of boron. Reduction by sodium borohydride causes formation of amorphous metallic phases and metal boride alloy;26–28 also B 3+ (PdB 2 O 3 ) on the surface. Chen and Wu29 and Liu et al 30 have confirmed the presence of B 3+ due to hydrolysis of borohydride from X‐ray photoelectron spectroscopic studies.…”

Section: Resultsmentioning

confidence: 99%

Vapor‐phase selective hydrogenation of citral over Pd/bentonite: effect of reduction method

Divakar

Manikandan

Thiripuranthagan

2008

J of Chemical Tech & Biotech

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BACKGROUND: Well-dispersed nanoparticles of palladium were synthesized by wet impregnation technique over bentonite followed by three different reduction methods (H 2 or NaBH 4 or ethanol) and characterized by transmission electron microscopy, X-ray diffraction, temperature-programmed reduction and atomic absorption spectroscopy. Hydrogenation of citral over Pd-supported bentonite catalysts was studied in vapor phase using a micro-reactor. The effect of reduction method and metal loading on the conversion of citral and selectivity towards nerol and geraniol were examined.

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“…Many kinds of Rubased catalysts have been studied [20][21][22][23], from which bimetallic supported Ru3Sn7 nanocluster catalyst showed the highest selectivity towards fatty alcohols (240 °C, 4.0 MPa H2, and 120 min) in coconut oil hydrogenation [24]. A maximum yield of fatty alcohol was 98.6%, which obtained using Ru3Sn7 nanocluster containing trace amount of SnO species [25,26]. Pt/TiO2 catalyst was reported to be effective for carboxylic acids hydrogenation, and enhanced hydrogenation activity could be achieved after modified catalyst with Re without the alcohol selectivity loss [27].…”

Section: Introductionmentioning

confidence: 99%

Selective Hydrogenation of Stearic Acid to 1-Octadecanol Using Bimetallic Palladium-Tin Supported on Carbon Catalysts at Mild Reaction Conditions

Rodiansono

Hayati

Azzahra

et al. 2021

Bull. Chem. React. Eng. Catal.

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Bimetallic palladium-tin catalysts supported on microporous carbon (denoted as Pd-Sn(x)/C, loading amount of Pd = 5 wt% and x = Pd/Sn molar ratio; c.a. 3.0; 1.5; and 1.0) showed high selectivity in the hydrogenation of stearic acid towards 1-octadecanol (stearyl alcohol) under mild reaction conditions. Pd-Sn(x)/C catalysts were synthesized via the hydrothermal method at temperature of 150 °C for 24 h, and reduced with H2 at 400 °C for 3 h. Pd-Sn(1.5)/C catalyst exhibited the highest yield of stearyl alcohol (1-octadecanol) (up to 73.2%) at 100% conversion of stearic acid at temperature 240 °C, initial H2 pressure of 3.0 MPa, a reaction time of 13 h, and in 2-propanol/water solvent. The high selectivity of alcohols over Pd-Sn(1.5)/C catalyst can be attributed to the formation of bimetallic Pd-Sn alloy phases (e.g. Pd3Sn and Pd3Sn2) as obviously depicted by XRD analysis. The presence of co-promotor Sn and the formation of bimetallic may play a pivotal role in the high selectivity of 1-octadecanol. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Studies on ruthenium-tin boride catalysts I. Characterization

Cited by 66 publications

References 12 publications

Selective Hydrogenation of Dodecanoic Acid to Dodecane-1-ol Catalyzed by Supported Bimetallic Ni-Sn Alloy

Selective Hydrogenation of Dodecanoic Acid to Dodecane-1-ol Catalyzed by Supported Bimetallic Ni-Sn Alloy

Vapor‐phase selective hydrogenation of citral over Pd/bentonite: effect of reduction method

Selective Hydrogenation of Stearic Acid to 1-Octadecanol Using Bimetallic Palladium-Tin Supported on Carbon Catalysts at Mild Reaction Conditions

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