Direct conversion of cellulose to sorbitol over ruthenium catalysts: Influence of the support

Ribeiro, Lucília S.; Delgado, Juan J.; Órfão, J.J.M.; Pereira, M.F.R.

doi:10.1016/j.cattod.2016.05.028

Cited by 50 publications

(22 citation statements)

References 32 publications

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“…Ru can also convert cellulose directly into sugar alcohols. Sousa Ribeiro et al . reported high cellulose conversion of cellulose (75 %) in 5 h to sorbitol.…”

Section: Catalytic Production Of Platform Chemicals From Lignocellulomentioning

confidence: 99%

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

et al. 2019

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This Review discusses novel catalytic pathways of lignocellulosic biomass to value‐added chemicals including biomass‐derived sugar alcohols, organic acids, furans and biohydrocarbons. These production approaches are undertaken by biological, chemical and thermochemical transformations or a combination of them. Nevertheless, the majority of research in this area is focused on the design of heterogeneous catalysts to convert value‐added products from holocellulosic biomass. Biorefineries represent the peak of biomass processes in order to produce valuable chemicals and liquid fuels avoiding the utilization of corroding and toxic elements. The aim of the present Review is to offer the readers a broad overview of recent holocellulosic‐based chemical and fuels production technologies via heterogeneous catalysis. There is also an overview of the economic aspects to efficiently produce these platform chemicals at industrial scale. To summarize this Review, an outlook and conclusions of the reported processes to date is provided.

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“…Ru can also convert cellulose directly into sugar alcohols. Sousa Ribeiro et al . reported high cellulose conversion of cellulose (75 %) in 5 h to sorbitol.…”

Section: Catalytic Production Of Platform Chemicals From Lignocellulomentioning

confidence: 99%

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

et al. 2019

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“…Due to its high porosity and adsorptive nature, AC is utilized as one of the support materials among various ones available for biomass conversion. Althougth the development of advanced materials such as graphene and CNT have enhanced the adsorption capability by many folds, the maiden role of activated carbon in fine chemical and pharmaceutical industries cannot be ignored. Activated carbon has microspores, large surface areas, and better physico‐chemical properties, under acidic, basic or even high temperature conditions .…”

Section: Activated Carbon As Support For Heterogeneous Catalysismentioning

confidence: 99%

Carbon‐Support‐Based Heterogeneous Nanocatalysts: Synthesis and Applications in Organic Reactions

2019

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Carbon-based-materials, owing to their wide availability and low cost, have been utilized for a variety of applications including heterogeneous catalysis. Various carbonaceous materials have been used as supports for transition metals or other materials. These support materials have shown their potential for development of green and sustainable approaches to heterogeneous catalysis. In this review, we discuss the utilization of carbon-based materials as supports for heterogeneous catalysts, especially in organic transformations. We have focused our discussions predominantly on four categories of carbonaceous supports, namely graphene (including, graphene oxide (GO) and reduced graphene oxide (RGO)), graphitic carbon nitride (GCN), carbon nanotubes (CNT) and activated carbon (AC) for various organic transformation reactions. Several approaches for the synthesis of these materials along with their application as heterogeneous catalysts for organic transformation reactions have been elaborated in detail. In addition, different aspects of organic synthesis, including hydrogenation, oxidation, reduction, condensation, and multi-component reactions, catalyzed by these materials have been discussed. Furthermore, organic transformations leading to the sustainable synthesis of valuable products from biomass have also been discussed. Finally, after a brief summary, the future perspectives of this very interesting class of materials are provided. Figure 1. Different types of carbon-support-based materials used as heterogeneous catalysts for organic transformations.

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“…Catalyst Ru-TSu leads to a high yield of sugar alcohols (39%) with a 69% cellulose conversion in 3 h, and it is reusable. The comparison with other reported results for similar catalysts [14,15,[20][21][22]35,42] is not straightforward because the reaction conditions are not the same, but catalyst Ru-TSu can be considered among the best-performing ones, considering that the high conversion and yield were obtained in only 3 h, and a relatively high cellulose/Ru weight ratio (80) was used.…”

Section: Hydrolytic Hydrogenation Of Cellulosementioning

confidence: 99%

“…For example, Ru/CNT (1 wt % Ru, supported on carbon nanotubes (CNT)) showed a good performance, attributed to its stronger H 2 adsorption ability [14], and Ru nanoparticles (10 wt % Ru) supported on sulfonated activated carbon was also a good-performing catalyst thanks to the dual-functionalized character arising from acidic groups and metal active sites [15]. Other interesting examples are Ru and Pt catalysts supported on activated carbon treated with sulfuric acid [20], mono-and bimetallic catalysts supported on carbon nanotubes and activated carbon [13,21], and several noble metals supported on different carbon materials [22].…”

Section: Introductionmentioning

confidence: 99%

Carbon-Black-Supported Ru Catalysts for the Valorization of Cellulose through Hydrolytic Hydrogenation

et al. 2018

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The one-pot hydrolytic hydrogenation of cellulose (HHC) with heterogeneous catalysts is an interesting method for the synthesis of fuels and chemicals from a renewable resource like lignocellulosic biomass. Supported metal catalysts are interesting for this application because they can contain the required active sites for the two catalytic steps of the HHC reaction (hydrolysis and hydrogenation). In this work, Ru catalysts have been prepared using a commercial carbon black that has been modified by sulfonation and oxidation treatments with H 2 SO 4 and (NH 4 )S 2 O 8 , respectively, in order to create acidic surface sites. The correlation between the catalysts' properties and catalytic activity has been addressed after detailed catalyst characterization. The prepared catalysts are active for cellulose conversion, being that prepared with the carbon black treated with sulfuric acid the most selective to sorbitol (above 40%). This good behavior can be mainly explained by the suitable porous structure and surface chemistry of the carbon support together with the low content of residual chlorine.

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Direct conversion of cellulose to sorbitol over ruthenium catalysts: Influence of the support

Cited by 50 publications

References 32 publications

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

Carbon‐Support‐Based Heterogeneous Nanocatalysts: Synthesis and Applications in Organic Reactions

Carbon-Black-Supported Ru Catalysts for the Valorization of Cellulose through Hydrolytic Hydrogenation

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