Production of supported gold and gold–silver nanoparticles by supercritical fluid reactive deposition: Effect of substrate properties

Müller, Sabrina; Türk, Michael

doi:10.1016/j.supflu.2014.09.035

Cited by 34 publications

(15 citation statements)

References 33 publications

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“…From a more general perspective and based on the numerous experimental results published in literature one can conclude: 1) The average particle size and size distribution can be affected by the type and amount of the precursor, the reduction method, and the conditions and properties of the substrate ,. 2) The SFRD process, especially, enables the formation of uniform mono‐ and bimetallic nanoparticles . 3) Catalysts prepared via SFRD exhibit an activity higher than reference samples prepared by conventional methods such as wet impregnation …”

Section: Preparation Of Sophisticated Materials: Challenges and Recenmentioning

confidence: 99%

Exploiting Synergies in Catalysis and Gas Sensing using Noble Metal‐Loaded Oxide Composites

et al. 2018

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Noble metal/metal oxide nanocomposites are very important in various fields of catalysis and play an evenly important role in gas sensing. Although there are many similarities regarding the choice of materials, the synthesis and the fundamental mechanisms, both research fields have been mostly treated independently up to now. In both fields, open questions regarding the elementary steps in the interaction of the gases with the active species and the role of the noble metal, the semiconducting metal oxide support and the interface remain. In this concept article, we first outline the importance of such composites in catalysis and gas sensing focussing on Pt/Pd, as well as CeO2 and SnO2 as transition metal oxides. Next, the state of art of both fundamental and relevant surface reactions and electronic mechanisms are described. Finally, we highlight the synergy of jointly exploring catalysis and gas sensing of noble metal/metal oxide nanocomposite materials and the benefit for both research fields if they are dealt with simultaneously using advanced characterization and operando methods, sophisticated preparation techniques, testing of the performance, and predictive theoretical modelling.

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Section: Preparation Of Sophisticated Materials: Challenges and Recenmentioning

confidence: 99%

Exploiting Synergies in Catalysis and Gas Sensing using Noble Metal‐Loaded Oxide Composites

et al. 2018

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“…Müller and Türk have successfully deposited AuAg core-shell structures following this methodology [23]. Prof. Erkey and coworkers have also studied the impregnation of both metal precursors on the support followed by thermal decomposition at ambient pressure and proposed the sequential deposition of both metals [14].…”

Section: Introductionmentioning

confidence: 99%

Green preparation of PtRu and PtCu/SBA-15 catalysts using supercritical CO 2

Sánchez-Miguel

Tenorio

Morère

et al. 2017

Journal of CO2 Utilization

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“…The mean particle size varied between 4 and 28 nm depending on the support used (mean particle size on BP2000 < γ-Al2O3 < TiO2 < β-CD; BP = Black Pearls; CD = cyclodextrin), as characterized by TEM ( Figure 7). Notably, EDX analysis of single particles showed both monometallic and bimetallic Au-Ag core/shell NPs featuring a gold core covered by an intermetallic shell made of Ag1Au3 [118]. Erkey et al, have described a supercritical deposition method to prepare aerogel-Cu nanocomposites.…”

Section: Synthesis Of Bmnps In Supercritical Fluidsmentioning

confidence: 99%

Bimetallic Nanoparticles in Alternative Solvents for Catalytic Purposes

et al. 2017

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Bimetallic nanoparticles represent attractive catalytic systems thanks to the synergy between both partners at the atomic level, mainly induced by electronic effects which in turn are associated with the corresponding structures (alloy, core-shell, hetero-dimer). This type of engineered material can trigger changes in the kinetics of catalyzed processes by variations on the electrophilicity/nucleophilicity of the metal centers involved and also promote cooperative effects to foster organic transformations, including multi-component and multi-step processes. Solvents become a crucial factor in the conception of catalytic processes, not only due to their environmental impact, but also because they can preserve the bimetallic structure during the catalytic reaction and therefore increase the catalyst lifetime. In this frame, the present review focuses on the recent works described in the literature concerning the synthesis of bimetallic nanoparticles in non-conventional solvents, i.e., other than common volatile compounds, for catalytic applications.

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Production of supported gold and gold–silver nanoparticles by supercritical fluid reactive deposition: Effect of substrate properties

Cited by 34 publications

References 33 publications

Exploiting Synergies in Catalysis and Gas Sensing using Noble Metal‐Loaded Oxide Composites

Exploiting Synergies in Catalysis and Gas Sensing using Noble Metal‐Loaded Oxide Composites

Green preparation of PtRu and PtCu/SBA-15 catalysts using supercritical CO 2

Bimetallic Nanoparticles in Alternative Solvents for Catalytic Purposes

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