Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over BN-supported Pt catalysts at room temperature

Cao, Zhang; Bu, Jiahao; Zhong, Zeqin; Sun, C. P.; Zhang, Qingsong; Wang, Jiandian; Chen, Shihong; Xie, Xiaobing

doi:10.1016/j.apcata.2019.04.006

Cited by 54 publications

(19 citation statements)

References 38 publications

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“…As shown by HRTEM images (Figure 2c–2f), the average size of Pd NPs on Pd/MWCNTs was 4.21±0.66 nm, which was smaller than that on Pd/SWCNTs (4.63±0.56 nm). On the surface of larger metal particles, the activation of C=O bonds will be facilitated compared with the hydrogenation of C=C bonds [21] …”

Section: Resultsmentioning

confidence: 99%

Tunable Selective Hydrogenation of Cinnamaldehyde by Capped Pt/Pd Nanoparticles Supported on Carbon Nanotubes

et al. 2022

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A series of catalysts containing Pt or Pd nanoparticles (NPs) jointly regulated by cytidine (Cs) and polyvinylpyrrolidone (PVP) have been prepared for selective hydrogenation of cinnamaldehyde (CAL). The Pt/Pd NPs were supported on carbon nanotubes (CNTs) with different structures for promoting catalytic activity and tuning product selectivity. The synergistic effect of Cs and PVP on Pt/Pd surface promotes hydrogenation activity. The synergy between Pd NPs and multi‐walled CNTs with the diameter of <8 nm greatly promoted the hydrogenation of C=C bond in CAL. The synergy between Pt NPs and single‐walled CNTs with the diameter of <2 nm effectively enhanced the hydrogenation of C=O bond in CAL. These synergistic effects are attributed to the suitable size and exposed (111) facets of metal NPs, the transfer of electrons and the interaction between metal and support.

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Section: Resultsmentioning

confidence: 99%

Tunable Selective Hydrogenation of Cinnamaldehyde by Capped Pt/Pd Nanoparticles Supported on Carbon Nanotubes

et al. 2022

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“…To solve this challenge, various catalyst supports have been designed and developed for dispersing and anchoring metallic nanocatalysts. [5][6][7][8][9][10][11][12] Besides, as suggested by previous studies, [1] catalyst support may also play essential roles in tuning the size and intrinsic activity of catalyst. Thus, an ideal catalyst support should have large specific surface area, high electrical conductivity, strong cohesion to catalyst, and good resistance toward severe reaction condition.…”

Section: Introductionmentioning

confidence: 99%

Dual Modification of Carbon Support Enables Robust Anchoring of Ruthenium Nanoclusters for Efficient Hydrogen Evolution and Aromatic Nitroreduction

Wang

Qin

Zhu

et al. 2021

Adv Materials Inter

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Graphite carbons have been widely used as catalyst support due to their low‐cost, tunable porous structure, high electrical conductivity, and good resistance to harsh conditions. To date, various defect engineerings have been adopted to enhance the cohesion between graphite carbons and metallic nanocatalysts. Nevertheless, the modification of carbon basal plane has been less explored. In this work, a dual modification strategy is developed to achieve novel carbon support (denoted as NCf) incorporating both C60 units and trace N‐defects. Benefiting from the dual anchoring modes (Ru–C and Ru–N–C), ultrafine ruthenium (Ru) nanoclusters (average size: 2.26 ± 0.38 nm) can be well‐dispersed and robustly anchored on the NCf support. The optimal Ru0.013@NCf catalyst exhibits decent catalytic activities and long‐term stabilities toward both alkaline hydrogen evolution reaction (HER) and aromatic nitroreduction (ANR), outperforming the individually modified counterparts. Computational studies suggest that introducing both C60 and N‐defects into carbon support leads to electron‐deficient Ru nanocluster, which is critical for not only HER but also ANR. This work thus provides a new guideline for rational design of advanced carbon supported nanocatalysts for multipurpose applications.

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“…Nevertheless, the composites of noble metal have a higher performance than single noble metal due to the special interaction between them. Hence, so many noble metal composite catalysts have been focused on, such as Pt‐based catalysts,, , Ru/GO‐PNIPAM, Pd‐Ag alloy, Au compounds,, etc. For achieving a high catalytic performance, most of these catalysts have been nanosized to obtain a higher surface area, thus resulting in the increase of catalytic sites, which might induce difficulty in their recycle and cause agglomeration.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the important position in the flavoring, perfume and pharmaceutical industries, cinnamyl alcohol (COL) has been widely investigated through selective hydrogenation of cinnamaldehyde (CAL) However, selective hydrogenation of C=O bond is not thermodynamically and kinetically favored . Previous works indicate that noble metal displays slightly higher selective for the unsaturated alcohol , . Nevertheless, the composites of noble metal have a higher performance than single noble metal due to the special interaction between them.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Hierarchically Porous Amorphous Alloy Hollow Sphere with High Surface Area as Effective and Selective Catalysts for Cinnamaldehyde Hydrogenation

et al. 2020

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The exploitation of cheap, stable, and efficient catalysts is highly significant and greatly valuable for hydrogenation reactions. A novel amorphous alloy hollow sphere with hierarchical pores was synthesized by using in situ generated H2 bubble as a soft template with the chemical reduction method, in which the co‐deposited calcium carbonate acts as a hard template for fabricating the porous structure. The optimized amorphous Co‐Fe‐1 %Zn‐B alloy shows excellent catalytic performance with 97.7 % of cinnamaldehyde (CAL) conversion and 100 % of cinnamyl alcohol (COL) selectivity, which is superior to the reported results catalyzed by Co‐based catalysts, and even to those of noble metal catalysts for the selective CAL hydrogenation to COL. The enhanced catalytic activity of the prepared amorphous alloy is ascribed to the large active surface area, hierarchically porous and hollow structure, and the synergistic effect of Fe and Zn in the materials. The synthesized amorphous alloy also shows good stability and can be recycled for more than five runs. A possible fabrication mechanism for the hollow amorphous alloy porous spheres was also proposed and discussed.

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Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over BN-supported Pt catalysts at room temperature

Cited by 54 publications

References 38 publications

Tunable Selective Hydrogenation of Cinnamaldehyde by Capped Pt/Pd Nanoparticles Supported on Carbon Nanotubes

Tunable Selective Hydrogenation of Cinnamaldehyde by Capped Pt/Pd Nanoparticles Supported on Carbon Nanotubes

Dual Modification of Carbon Support Enables Robust Anchoring of Ruthenium Nanoclusters for Efficient Hydrogen Evolution and Aromatic Nitroreduction

Synthesis of Hierarchically Porous Amorphous Alloy Hollow Sphere with High Surface Area as Effective and Selective Catalysts for Cinnamaldehyde Hydrogenation

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