Single-layer graphdiyne-covered Pt(111) surface: improved catalysis confined under two-dimensional overlayer

Chen, Xi; Lin, Zheng‐Zhe

doi:10.1007/s11051-018-4236-0

Cited by 10 publications

(6 citation statements)

References 69 publications

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“…746 It should be also noted that the presence of defects 752 or hetero-atom dopants 720 in the CNT structure can deeply affect the adsorption energy (Eb(in) and Eb(out)) of reactant during catalysis. Besides CNT, it was also reported that the binding energy of various molecule (CO was particularly studied) is reduced when adsorption occurs on a metallic surface covered by graphene, [753][754][755][756][757] graphdiyne, 758 or graphitic carbon nitride. 759 All these results converge towards the fact that the confinement of a metallic active phase in a carbon material induces hard effects on the adsorption of molecules (potential reactants) and therefore on their potential reactivity.…”

Section: Electronic or "Hard" Effectsmentioning

confidence: 99%

“…It should also be noted that the presence of defects or heteroatom dopants in the CNT structure can deeply affect the adsorption energy ( E b(in) and E b(out) ) of reactant during catalysis. Besides CNT, it was also reported that the binding energy of various molecules (CO was particularly studied) is reduced when adsorption occurs on a metallic surface covered by graphene, − GDY, or graphitic carbon nitride …”

Section: Why Anchoring Metal Nanoparticles Clusters or Metal Single A...mentioning

confidence: 99%

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A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts

2019

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Fermi level in vii) are shown in purple in ii)-vi) with an iso-value of ±0.003 a.u. Reprinted with permission from ref 57 . Copyright 2014 from the Royal Society of Chemistry; b) Molecular model of a corannulene-like element functionalized with three carboxylic groups from two different perspectives in the cpk representation (on the left). The final structure (190 elements in a cubic cell of 60 Å in size) obtained from random packing of the individual elements (on the right). Cyan: carbon, red: oxygen, white: hydrogen. Reprinted with permission from ref 59 Copyright 2017 from Elsevier; c) Side-views of Ru13 adsorbed on Gr-DV-2COOH site before (on left panel) and after a proton jump (right panel). C atoms are in black, O in red, H in with white and Ru in mocha. Reprinted with permission from ref 60 Copyright 2014 from Elsevier; and d) Spin-density projection in µB/a.u. 2 on the graphene plane around i) the hydrogen chemisorption defect (∆) and ii) the vacancy defect in the a sublattice. Carbon atoms corresponding to the a sublattice (o) and to the b sublattice (•) are distinguished. Simulated STM images of the defects are shown in iii) and iv), respectively. Reprinted with permission from ref 61 .

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Section: Electronic or "Hard" Effectsmentioning

confidence: 99%

Section: Why Anchoring Metal Nanoparticles Clusters or Metal Single A...mentioning

confidence: 99%

A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts

2019

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“…Improving catalysis can be seen the other way around: instead of decorating graphene sheets, they could be the decoration. For instance, when placed on the Pt(111) surface, a graphdiyne layer gives better results at increasing the latter two-dimensional confined catalysis performance compared with graphene or hexagonal boron nitride [ 103 ].…”

Section: Adsorption Of Molecules On Pristine or Nonmetal Functionalized Systemsmentioning

confidence: 99%

Carbon Nanostructures Doped with Transition Metals for Pollutant Gas Adsorption Systems

2021

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The adsorption of molecules usually increases capacity and/or strength with the doping of surfaces with transition metals; furthermore, carbon nanostructures, i.e., graphene, carbon nanotubes, fullerenes, graphdiyne, etc., have a large specific area for gas adsorption. This review focuses on the reports (experimental or theoretical) of systems using these structures decorated with transition metals for mainly pollutant molecules’ adsorption. Furthermore, we aim to present the expanding application of nanomaterials on environmental problems, mainly over the last 10 years. We found a wide range of pollutant molecules investigated for adsorption in carbon nanostructures, including greenhouse gases, anticancer drugs, and chemical warfare agents, among many more.

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“…[3] The presence of a capping ligand has been found essential for their increased efficiency, since small size particles with high stability are obtained this way. Pt NPs are active catalysts in oxidation of glucose [4] or carbon monoxide [5][6][7] and enhance the photocatalytic efficiency of TiO 2 in hydrogen production. [8] Monodisperse subnanometer Pt clusters of controlled size have been prepared and tested as catalysts in hydrogenation of styrene, [9] while Pt NPs stabilized with polyphenols were found efficient in biphasic hydrogenation of a series of unsaturated compounds.…”

Section: Introductionmentioning

confidence: 99%

Three Reactions, One Catalyst: A Multi‐Purpose Platinum(IV) Complex and its Silica‐Supported Homologue for Environmentally Friendly Processes

Racleş¹,

Zaltariov²,

Damoc³

et al. 2019

Applied Organom Chemis

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Although platinum nanoparticles and complexes ‐especially of Pt(0) and Pt(II)‐ are well known catalysts, siloxane‐based platinum complexes are rarely reported. Herein, a Platinum(IV) complex of 4‐aminopyridinium‐modified disiloxane was prepared and characterized by medium and far infrared spectroscopy, NMR and EDX. The formation of the complex was monitored by UV–Vis spectroscopy, which showed the high affinity and selectivity of this ligand for Pt, with a stability constant of 7.53·103 M−1. The catalytic activity of the siloxane‐based complex was tested in three types of reactions: reduction of p‐nitrophenol, oxidation of glucose and starch, and hydrosilylation. The hydrophobic behavior of the permethylated disiloxane moiety ensures good hydrolytic stability, while the N‐donor ligand stabilizes the in‐situ formed Pt nanoparticles. The generation of Pt nanoparticles during p‐nitrophenol reduction was confirmed by TEM and SEM. Contrary to most reports, the aerobic oxidation of mono‐ and polysaccharides occurred without oxidation agents or mediators added, in mild conditions, at room temperature and pH ~9. The same metal complex was found active in hydrosilylation of vinyl‐siloxanes with temperature‐modulated rate, thus being useful in silicone cross‐linking systems without the need of inhibitors. The method was adapted to one‐pot synthesis of silica‐supported Pt(IV) complex, which acted as efficient and reusable heterogeneous hydrosilylation catalyst, limiting the contamination of the product with Pt. This approach is promising for superior valorization of scarcely available and expensive platinum metal. By the same method, multifunctional soluble complexes and mesoporous silica may be obtained, with tunable catalytic performance.

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Single-layer graphdiyne-covered Pt(111) surface: improved catalysis confined under two-dimensional overlayer

Cited by 10 publications

References 69 publications

A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts

A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts

Carbon Nanostructures Doped with Transition Metals for Pollutant Gas Adsorption Systems

Three Reactions, One Catalyst: A Multi‐Purpose Platinum(IV) Complex and its Silica‐Supported Homologue for Environmentally Friendly Processes

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