Selective hydrogenation of levulinic acid to 1,4-pentanediol in water using a hydroxyapatite-supported Pt–Mo bimetallic catalyst

2015 ◽  
Vol 17 (12) ◽  
pp. 5136-5139 ◽  
Author(s):  
T. Mizugaki ◽  
Y. Nagatsu ◽  
K. Togo ◽  
Z. Maeno ◽  
T. Mitsudome ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Levulinic Acid ◽  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Selective Transformation ◽  
Aqueous Conditions

Hydroxyapatite-supported Pt–Mo bimetallic nanoparticles (Pt–Mo/HAP) catalyze the selective transformation of levulinic acid to 1,4-pentanediol under aqueous conditions.

scholarly journals Highly efficient selective hydrogenation of levulinic acid to γ-valerolactone over Cu–Re/TiO2 bimetallic catalysts

RSC Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 602-610
Author(s):  
Yingxin Liu ◽  
Kai Liu ◽  
Meihua Zhang ◽  
Kaiyue Zhang ◽  
Jiao Ma ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Selective Hydrogenation ◽  
Bimetallic Catalysts ◽  
Levulinic Acid ◽  
Bimetallic Catalyst ◽  
Highly Efficient ◽  
Liquid Phase Hydrogenation

Herein, we report a highly efficient and recyclable Cu–Re(1 : 1)/TiO2 bimetallic catalyst for liquid phase hydrogenation of levulinic acid to γ-valerolactone.

NiFe2O4@SiO2@ZrO2/SO42−/Cu/Co nanoparticles: a novel, efficient, magnetically recyclable and bimetallic catalyst for Pd-free Suzuki, Heck and C–N cross-coupling reactions in aqueous media

2021 ◽  
Author(s):  
Seyyedeh Ameneh Alavi G. ◽  
Mohammad Ali Nasseri ◽  
Milad Kazemnejadi ◽  
Ali Allahresani ◽  
Mahdi HussainZadeh
Keyword(s):  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Aqueous Media ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
The Novel ◽  
Cross Coupling Reactions ◽  
Co Nanoparticles

The novel heterogeneous bimetallic nanoparticles of Cu–Co were synthesized and successfully applied as a recyclable magnetically catalyst in Heck, Suzuki, and C–N cross-coupling via a quick, easy, efficacious and environmentally protocol.

Carbon Nanotunes Supported Pt and Pt-Ru Catalysts for Selective Hydrogenation of Citral: Effect of Promoters and Thermal Activation of Catalysts

2012 ◽  
Vol 584 ◽  
pp. 229-233 ◽  
Author(s):  
Sakunthala Angamuthu Ananthan ◽  
Narayanan Vengidusamy ◽  
Krishnamoorthy Giribabu ◽  
Ranganathan Suresh
Keyword(s):  
Selective Hydrogenation ◽  
Bimetallic Catalyst ◽  
Surface Group ◽  
Inert Atmosphere ◽  
Area Measurement ◽  
Bet Surface Area ◽  
Metallic State ◽  
Environment Friendly ◽  
Ru Catalysts ◽  
Different Temperatures

MWCNT supported Pt, Ru, and Pt–Ru catalysts were prepared and reduced at two different temperatures, 375°C (LTR) and 675°C (HTR) for the selective hydrogenation of citral to the corresponding unsaturated alcohols (geraniol and nerol). The catalysts were characterized by BET Surface area measurement, TPD, SEM, EDAX, TEM, XRD and XPS. It was found that the XRD of Pt and Ru shows fcc and hcp crystalline structure respectively, which is uniformly dispersed with an average particles size of 3.5 nm and zero valence metallic state. The removal of acidic oxygen surface group is observed when heat- treatments in a inert atmosphere at 675°C were performed. The bimetallic catalyst of Pt-Ru/MWCNT (HTR) was found to afford remarkably high conversion levels (85%) and high selectivity (95%) provided that a thermal pretreatment was performed on the catalyst. These results can be rationalized in terms of electron transfer from the support to the metal. The catalysts are environment friendly and can be recycled for more than eight times.

scholarly journals Pd–Ni Bimetallic Nanoparticles Supported on Zro2 as an Efficient Catalyst for Suzuki–Miyaura Reactions

2018 ◽  
Vol 42 (8) ◽  
pp. 419-423
Author(s):  
Li-Jie Zhang ◽  
Xian Yao ◽  
Ying-xin Sun ◽  
Jia-wei Zhang ◽  
Chun Cai
Keyword(s):  
Reduction Method ◽  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Excellent Catalytic Performance

Pd–Ni bimetallic nanoparticles (BMNPs) supported on ZrO2 were prepared by an impregnation–reduction method. The BMNPs showed excellent catalytic performance in Suzuki carbon–carbon cross-coupling reactions and almost quantitative conversion of the substrates was obtained under mild conditions in the absence of ligand. The excellent catalytic performance of the bimetallic catalyst could be a result of the synergistic effect between the two metal components. The catalyst showed outstanding recyclability during the reaction process; no obvious decrease in catalytic performance was observed after five cycles.

Novel Cu/AlO-ZrO composite for selective hydrogenation of levulinic acid to -valerolactone

2019 ◽  
Vol 125 ◽  
pp. 82-86 ◽  
Author(s):  
Daiping He ◽  
Qingqing He ◽  
Ping Jiang ◽  
Gongbing Zhou ◽  
Rongqi Hu ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Levulinic Acid

scholarly journals Selective hydrogenation of levulinic acid to γ-valerolactone using in situ generated ruthenium nanoparticles derived from Ru–NHC complexes

2016 ◽  
Vol 45 (8) ◽  
pp. 3558-3563 ◽  
Author(s):  
Boon Ying Tay ◽  
Cun Wang ◽  
Pim Huat Phua ◽  
Ludger Paul Stubbs ◽  
Han Vinh Huynh
Keyword(s):  
Selective Hydrogenation ◽  
Levulinic Acid ◽  
Ruthenium Nanoparticles ◽  
Highly Active

Ruthenium(ii) NHC complexes give rise to highly active and selective ruthenium nanoparticles for the conversion of levulinic acid to γ-valerolactone in water.

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