Active and regioselective rhodium catalyst supported on reduced graphene oxide for 1-hexene hydroformylation

Tan, Min‐Yu; Yang, Guohui; Wang, Zhihui; Vitidsant, Tharapong; Li, Jie; Wei, Qinhong; Ai, Peipei; Wu, Mingbo; Zheng, Jingtang; Tsubaki, Noritatsu

doi:10.1039/c5cy01355k

Cited by 49 publications

(27 citation statements)

References 46 publications

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“…The peak area associated with Rh is 3.1 times higher in the case of Rh/C in comparison with Rh/SiO 2 , while the specific surface area is 7 times higher for Rh/C. Results in this work show an agreement with the literature, where CO was reported to desorb from the Rh on graphene oxide at 80 • C [24] and at 247 • C from Rh(111) [25].…”

Section: Catalyst Characterizationsupporting

confidence: 88%

Aqueous Dehydration, Hydrogenation, and Hydrodeoxygenation Reactions of Bio-Based Mucic Acid over Ni, NiMo, Pt, Rh, and Ru on Neutral or Acidic Catalyst Supports

2019

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Hydrotreatment of mucic acid (also known as galactaric acid, an glucaric acid enantiomer), one of the most promising bio-based platform chemicals, was systematically investigated in aqueous media over alumina, silica, or carbon-supported transition (nickel and nickel-molybdenum) or noble (platinum, ruthenium and rhodium) metals. Mucic acid was only converted into mucic-1,4-lactone under non-catalytic reaction conditions in N2 atmosphere, while the 5 MPa gaseous H2 addition triggers hydrogenation in the bulk phase, resulting in formation of galacturonic and galactonic acid. However, dehydroxylation, hydrogenation, decarbonylation, decarboxylation, and cyclization occurred during catalytic hydrotreatment, forming various partially and completely deoxygenated products with a chain length of 3–6 C atoms. Characterization results of tested catalysts were correlated with their activity and selectivity. Insufficient pore diameter of microporous supports completely hindered the mass transfer of reactants to the active sites, resulting in negligible conversion of mucic acid. A comprehensive reaction pathway network was proposed and several industrially interesting compounds were formed, including levulinic acid, furoic acid, and adipic acid. However, selectivity towards adipic acid, a bio-based nylon 6,6 precursor, was low (up to 5 mol%) in aqueous media and elevated temperatures.

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Section: Catalyst Characterizationsupporting

confidence: 88%

Aqueous Dehydration, Hydrogenation, and Hydrodeoxygenation Reactions of Bio-Based Mucic Acid over Ni, NiMo, Pt, Rh, and Ru on Neutral or Acidic Catalyst Supports

2019

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“…The former is ascribed to the defects or imperfections of disordered amorphous carbon (such as graphite and graphite oxide), whereas the latter is ascribed to the first-order spectrum resulting from the bond stretching of all sp 2 atom pairs in the rings andc hains of carbon materials. [18] In general, the intensity ratio of the D band to Gb and (I D /I G )i se mployed to characterize the degree of disorder and defects in carbon materials. In this work, the I D /I G ratio is clearly boosted from 0.79 for the Co@C catalyst to 0.95 for the Co@NC one.…”

Section: Chemical Statementioning

confidence: 99%

Functionalized Natural Carbon‐Supported Nanoparticles as Excellent Catalysts for Hydrocarbon Production

Sun

Guo

et al. 2017

Chemistry An Asian Journal

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We report a one-pot and eco-friendly synthesis of carbon-supported cobalt nanoparticles, achieved by carbonization of waste biomass (rice bran) with a cobalt source. The functionalized biomass provides carbon microspheres as excellent catalyst support, forming a unique interface between hydrophobic and hydrophilic groups. The latter, involving hydroxyl and amino groups, can catch much more active cobalt nanoparticles on surface for Fischer-Tropsch synthesis than chemical carbon. The loading amount of cobalt on the final catalyst is much higher than that prepared with a chemical carbon source, such as glucose. The proposed concept of using a functionalized natural carbon source shows great potential compared with conventional carbon sources, and will be meaningful for other fields concerning carbon support, such as heterogeneous catalysis or electrochemical fields.

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“…Rh NPs derived from RhĲNO 3 ) 3 and supported on rGO have been used to catalyze the hydroformylation of 1-hexene. 24 Microwave induced thermal decomposition of metal precursors in ionic liquid (IL) media represents a promising variation of this approach, 25,26 as ILs efficiently absorb microwaves due to their high dielectric constants. 27,28 The microwave-assisted IL method combines the advantages of traditional microwave synthesis (fast and energy efficient) and IL solvents (microwave absorbers and structure-directing agents).…”

Section: Introductionmentioning

confidence: 99%

Chemoselective reduction of heteroarenes with a reduced graphene oxide supported rhodium nanoparticle catalyst

Karakulina

Gopakumar

Fei

et al. 2018

Catal. Sci. Technol.

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Active and regioselective rhodium catalyst supported on reduced graphene oxide for 1-hexene hydroformylation

Abstract: An active and regioselective rhodium catalyst supported on reduced graphene oxide for 1-hexene hydroformylation was prepared by a one-pot liquid-phase reduction method.

Cited by 49 publications

References 46 publications

Aqueous Dehydration, Hydrogenation, and Hydrodeoxygenation Reactions of Bio-Based Mucic Acid over Ni, NiMo, Pt, Rh, and Ru on Neutral or Acidic Catalyst Supports

Aqueous Dehydration, Hydrogenation, and Hydrodeoxygenation Reactions of Bio-Based Mucic Acid over Ni, NiMo, Pt, Rh, and Ru on Neutral or Acidic Catalyst Supports

Functionalized Natural Carbon‐Supported Nanoparticles as Excellent Catalysts for Hydrocarbon Production

Chemoselective reduction of heteroarenes with a reduced graphene oxide supported rhodium nanoparticle catalyst

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