High-index facets of Pt Fe nanowires induce steric effect on selective hydrogenation of acetophenone

Wu, Wen‐Hong; Li, Jiawei; Chen, Ziyuan; Chen, Wenze; Pang, Hongsheng; Ma, Kai; Zeng, Jie

doi:10.1016/j.jcat.2019.04.001

Cited by 18 publications

(10 citation statements)

References 37 publications

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“…The main purpose of this review is to realize high activity, stability, and selectivity -d) Reproduced with permission. [114] Copyright 2019, Elsevier B.V. e-g) Reproduced with permission. [66] Copyright 2018, American Chemical Society.…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

“…[ 113 ] Recent studies revealed the potential of metallic Pt‐based UNWs in enhancing not only the activity, but also selectivity of hydrogenation due to the strong electronic and synergistic effects, as well as the high surface active areas. Take the selective hydrogenation of acetophenone for example, Zeng's group [ 114 ] demonstrated that the catalytic performance was enhanced significantly by employing HIFs‐enriched Pt–Fe UNWs ( Figure a,b). As shown in Figure 11, when the conversion of acetophenone reached to 99.3%, the selectivity for 1‐phenylethanol was as high as 91.7% (Figure 11c,d).…”

Section: Applications Of Pt‐based Unws For Advanced Catalysismentioning

confidence: 99%

Section: Applications Of Pt‐based Unws For Advanced Catalysismentioning

confidence: 99%

“…j) The schematic illustration for the mechanism of the downshift of Pt 5d orbital level by introducing Fe within the Pt 4 Fe UNWs. a-d) Reproduced with permission [114]. Copyright 2019, Elsevier B.V. e-g) Reproduced with permission [66].…”

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confidence: 99%

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Ultrafine Pt‐Based Nanowires for Advanced Catalysis

Shang

Wang

et al. 2020

Adv Funct Materials

226

151

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At the frontier of electrocatalysis and heterogeneous reactions, significant effort has been devoted to Pt-based nanomaterials owing to their advantages of tunable morphology and excellent catalytic properties. In contrast to Ptbased nanocatalysts with other morphologies, nanowire catalysts, especially 1D ultrafine nanowire (NW) structure, are garnering increased attention because of their advantages of high atomic efficiency, intrinsic isotropy, rich high-index facets, better conductivity, robust structure stability for prohibiting dissolution, ripening, and aggregation. Regardless of these advantages, it is still challenging to realize the precise control of ultrafine Pt-based NWs in terms of their size, crystal phase structure, and composition. Aiming to synthesize advanced ultrafine Pt-based NWs catalysts with higher activity, durability, and selectivity toward catalytic reactions, this review summarizes the recently available approaches for improving the catalytic performance of ultrafine Pt-based NWs with detailed guidance. A summary of recent progress in ultrafine Pt-based NWs catalysts for advanced catalysis and heterogeneous reactions is also provided. Furthermore, integrated experimental and theoretical studies are reviewed to explain the activity, stability, and selectivity enhancement mechanism. In the final section, the challenges and outlook are also discussed to provide guidance for the rational engineering of efficient ultrafine Pt-based NWs catalysts for applications in renewable-energy-related devices.

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Section: Conclusion and Prospectsmentioning

confidence: 99%

Section: Applications Of Pt‐based Unws For Advanced Catalysismentioning

confidence: 99%

Section: Applications Of Pt‐based Unws For Advanced Catalysismentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Ultrafine Pt‐Based Nanowires for Advanced Catalysis

Shang

Wang

et al. 2020

Adv Funct Materials

226

151

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“… 7 − 9 However, more than one type of active site may be coexisting in the catalyst due to the metal sizes, exposed facets, and metal–support interfaces. 10 − 12 To avoid multiple adsorption modes, thereby only activating one group, single-atom catalysts (SACs), featured by homogenizing the supported metal at atomic level, have been proved to be effective in recent years. 13 , 14 For example, in the selective hydrogenation of C–OH versus C=O, single-atom Pt on defective Nb 2 O 5 exhibited superior selectivity, but opposite to the Pt nanoparticles.…”

mentioning

confidence: 99%

Reversing the Catalytic Selectivity of Single-Atom Ru via Support Amorphization

Huang

et al. 2022

JACS Au

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Supported single-atom catalysts (SACs), with the extremely homogenized active sites could achieve high hydrogenation selectivity toward one of the functional groups coexisting in the reactant molecule. However, as to the target group, the control of selective recognition and activation by SACs still remains a challenge. Herein, the phase engineering of the support is adopted to control the chemo-recognition behavior of SACs in selective hydrogenation. Single-atom Ru on amorphous porous ultrathin TiO 2 nanosheets (Ru 1 /a-TiO 2 ) is constructed, in which Ru is more positively charged than that in the crystalline counterpart (Ru 1 /c-TiO 2 ). Moreover, in the nitro/vinyl selective hydrogenation process, Ru 1 /a-TiO 2 shows superior nitro selectivity, opposite to the vinyl selectivity of Ru 1 /c-TiO 2 . Density functional theory calculations for single-atom Ru of different charge states show that the reactant adsorption configuration could be inverted in the amorphous TiO 2 , accounting for the chemo-recognition behavior controlled by the phase of support.

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Surface Engineering of Noble Metal Nanocrystals for Selective Hydrogenation

Lai,

Liang,

Wang

et al. 2024

ChemCatChem

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The selective hydrogenation has attracted increasing attention to chemists for the production of value‐added products in chemical industry. Over the past several decades, substantial effort has been devoted to the design of catalyst for the selective hydrogenation of light alkynes and α, β‐unsaturated aldehydes, two classic cases for selective hydrogenation in chemical industry. Despite the great progress, it remains great challenges to achieve the selective hydrogenation because the desired products are generally thermodynamically unfavored. Here, we summarize the recent advances on selective hydrogenation using noble metal nanocrystals, with an emphasis on the surface engineering of noble metal nanocrystals for the selective hydrogenation of light alkynes and α, β‐unsaturated aldehydes. We will highlight the strategies for surface engineering, the advanced techniques for characterizations, as well as mechanism studies. We hope this review will promote chemists to develop efficient and robust catalysts for selective hydrogenation.

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High-index facets of Pt Fe nanowires induce steric effect on selective hydrogenation of acetophenone

Cited by 18 publications

References 37 publications

Ultrafine Pt‐Based Nanowires for Advanced Catalysis

Ultrafine Pt‐Based Nanowires for Advanced Catalysis

Reversing the Catalytic Selectivity of Single-Atom Ru via Support Amorphization

Surface Engineering of Noble Metal Nanocrystals for Selective Hydrogenation

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