Photoactivation of ambient oxygen via plasmon-coupled valence-band hybridization in AgPd nanoalloy for reaction pathway alteration

Han, Pengfei; Jin, Peng; Xu, Lan; Xu, Ya; Li, Kun; Wang, Shuangyin; Nie, Zhou

doi:10.1016/j.apcatb.2021.120598

Cited by 8 publications

(4 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The electronic effect can reveal the rehybridization of the d-band in the atomic range, which can enhance electron transfer and lower the d-band center of Pd and Cu, thus improving the electrocatalytic activity. 51,52…”

Section: Resultsmentioning

confidence: 99%

Ni-doped hyperbranched PdCu nanocrystals for efficient electrocatalytic borohydride oxidation

et al. 2022

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Ni-doped hyperbranched PdCu nanocrystals for efficient electrocatalytic borohydride oxidation

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Based on these observations, the authors proposed the scavenger-assisted permanent charge extraction between plasmonic metal and surface adsorbates, which otherwise will be a transient charge exchange in the absence of scavengers (Figure g) . As discussed above, bimetallic nanostructures (plasmonic metal and metallic sites) have been extensively studied in plasmonic photocatalysis. , However, the change in the work function of the hybrid brought about by the metallic sites should be taken care of, especially when analyzing the charge transfer process . In addition, an ultrathin shell is generally required for the efficient energy transfer between the plasmonic metal core and the active site shell.…”

Section: Synergy Between Active Sites and Plasmonic Nanostructures In...mentioning

confidence: 99%

“…241,242 However, the change in the work function of the hybrid brought about by the metallic sites should be taken care of, especially when analyzing the charge transfer process. 243 In addition, an ultrathin shell is generally required for the efficient energy transfer between the plasmonic metal core and the active site shell. In this case, the formation of surface alloys, which will lead to the coexposure of dual metal sites, should also be considered.…”

Section: Synergy Between Active Sites and Plasmonic Nanostructures In...mentioning

confidence: 99%

Active Site Engineering on Plasmonic Nanostructures for Efficient Photocatalysis

et al. 2023

View full text Add to dashboard Cite

Plasmonic nanostructures have shown immense potential in photocatalysis because of their distinct photochemical properties associated with tunable photoresponses and strong light−matter interactions. The introduction of highly active sites is essential to fully exploit the potential of plasmonic nanostructures in photocatalysis, considering the inferior intrinsic activities of typical plasmonic metals. This review focuses on active site-engineered plasmonic nanostructures with enhanced photocatalytic performance, wherein the active sites are classified into four types (i.e., metallic sites, defect sites, ligand-grafted sites, and interface sites). The synergy between active sites and plasmonic nanostructures in photocatalysis is discussed in detail after briefly introducing the material synthesis and characterization methods. Active sites can promote the coupling of solar energy harvested by plasmonic metal to catalytic reactions in the form of local electromagnetic fields, hot carriers, and photothermal heating. Moreover, efficient energy coupling potentially regulates the reaction pathway by facilitating the excited state formation of reactants, changing the status of active sites, and creating additional active sites using photoexcited plasmonic metals. Afterward, the application of active site-engineered plasmonic nanostructures in emerging photocatalytic reactions is summarized. Finally, a summary and perspective of the existing challenges and future opportunities are presented. This review aims to deliver some insights into plasmonic photocatalysis from the perspective of active sites, expediting the discovery of high-performance plasmonic photocatalysts.

show abstract

“…The synergy reflects the complex interdependence of plasmas and catalysts: the plasma affects the catalyst properties and vice versa-the catalyst affects the plasma properties. As reviewed by Neyts et al [29], on one hand, the effects of plasmas on catalysts include the variation in physical and chemical properties of the catalysts [30][31][32], the formation of hot spots [33], photon irradiation [34][35][36][37], reduction of the activation barrier [38,39], and change in the reaction pathways [40][41][42]. On the other hand, effects of catalysts on plasmas involve the electric field enhancement [43], the formation of microdischarges in holes [44,45], the variation of the discharge form [43,46], and adsorption of plasma species on the catalyst surface [47,48].…”

Section: Introductionmentioning

confidence: 99%

Surface-induced gas-phase redistribution effects in plasma-catalytic dry reforming of methane: numerical investigation by fluid modeling

Zhu¹,

Zhong²,

Dai³

et al. 2022

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Plasma catalysis is an emerging process electrification technology for industry decarbonization. Plasma-catalytic dry reforming of methane (DRM) relies on the mutual effects of the plasma and the catalyst leading to the higher chemical conversion efficiency. The effects of catalyst surfaces on the plasma are predicted to play a major role, yet they remain unexplored. Here, a 1D plasma fluid model combined with 0D surface kinetics is developed to reveal how the surface reactions on platinum (Pt) catalyst affect the redistribution of the gas-phase particles. Two contrasting models with and without the surface kinetics as well as the Spearman rank correlation coefficients are used to quantify the effect of the key species (H, CH, CH2) on the CO generation. Advancing the common knowledge that Pt catalyst can influence the plasma chemistry directly by changing the surface loss/production of particles, this study reveals that the catalyst can also affect the spatial distributions of active species, thereby influencing the plasma chemistry in an indirect way. This result goes beyond the existing state-of-the-art which commonly relies on over-simplified 0D models which cannot resolve the spatial distribution. Further analysis indicates that the species spatial redistribution is driven by the dynamic catalyst surface adsorption-desorption processes. This work enables the previously elusive account of active species redistribution and may open new opportunities for plasma-catalytic sustainable chemical processes.

show abstract

Photoactivation of ambient oxygen via plasmon-coupled valence-band hybridization in AgPd nanoalloy for reaction pathway alteration

Cited by 8 publications

References 54 publications

Ni-doped hyperbranched PdCu nanocrystals for efficient electrocatalytic borohydride oxidation

Ni-doped hyperbranched PdCu nanocrystals for efficient electrocatalytic borohydride oxidation

Active Site Engineering on Plasmonic Nanostructures for Efficient Photocatalysis

Surface-induced gas-phase redistribution effects in plasma-catalytic dry reforming of methane: numerical investigation by fluid modeling

Contact Info

Product

Resources

About