Atomically thin Pt shells on Au nanoparticle cores: facile synthesis and efficient synergetic catalysis

Engelbrekt, Christian; Šešelj, Nedjeljko; Poreddy, Raju; Riisager, Anders; Ulstrup, Jens; Zhang, Jingdong

doi:10.1039/c5ta08922k

Cited by 48 publications

(32 citation statements)

References 49 publications

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“… Schematic description of synthesis of (a) AuPt (core‐shell) (request permission from ref), (b) Ru‐MOF‐CNF (request permission from ref) and (c) OMC supported Ru catalysts (request permission from ref).…”

Section: Figurementioning

confidence: 93%

“…Engelbrekt et al synthesized bimetallic AuÀPt catalysts with core-shell structures using two-step coating method. [60] The nanostructure has an 8 AE 2 nm morphology consisting of a spherical Au core and a 0.3 nm atomically thin Pt shell [see schematic description in Figure 5(a), entry#16 in Table 3]. Such well-defined structure induces dramatic broadening of local surface plasmon resonance (LSPR) peak of Au NPs.…”

Section: (Ii) Hydrogenation Of Lactic Acidmentioning

confidence: 99%

“…Kinetic modeling shows that activation barriers for levulinic acid hydrogenation Figure 5. Schematic description of synthesis of (a) AuPt (core-shell) (request permission from ref [60] ), (b) Ru-MOF-CNF (request permission from ref [61] ) and (c) OMC supported Ru catalysts (request permission from ref [19] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 is as low as 39 kJ/mol due to strong intermolecular esterification effect on sulfurized surface. [67] Hybrid Materials Metal-support interaction is critical for enhancing hydrogenation activity and selectivity of metal catalysts during levulinic acid conversion.…”

Section: (Ii) Hydrogenation Of Lactic Acidmentioning

confidence: 99%

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Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Jin

Fang

Wang

et al. 2018

The Chemical Record

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Conversion of biomass to chemicals provides essential products to human society from renewable resources. In this context, achieving atom‐economical and energy‐efficient conversion with high selectivity towards target products remains a key challenge. Recent developments in nanostructured catalysts address this challenge reporting remarkable performances in shape and morphology dependent catalysis by metals on nano scale in energy and environmental applications. In this review, most recent advances in synthesis of heterogeneous nanomaterials, surface characterization and catalytic performances for hydrogenation and oxidation for biorenewables with plausible mechanism have been discussed. The perspectives obtained from this review paper will provide insights into rational design of active, selective and stable catalytic materials for sustainable production of value‐added chemicals from biomass resources.

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Section: Figurementioning

confidence: 93%

Section: (Ii) Hydrogenation Of Lactic Acidmentioning

confidence: 99%

Section: (Ii) Hydrogenation Of Lactic Acidmentioning

confidence: 99%

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Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Jin

Fang

Wang

et al. 2018

The Chemical Record

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“…28, 34 Thus, the reactions were performed at 120°C under 20 bar of H 2 for 20 h in water as a solvent.…”

Section: Selective Hydrogenation Of Arenes With Rhnps/pvpmentioning

confidence: 99%

Chemoselective hydrogenation of arenes by PVP supported Rh nanoparticles

et al. 2016

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Polyvinyl pyrrolidone-stabilized Rh nanoparticles (RhNPs/PVP) of ca. 2.2 nm in size were prepared by the hydrogenation of an organometallic complex [Rh(η 3 -C 3 H 5 ) 3 ] in the presence of PVP and evaluated as a catalyst in the hydrogenation of a series of arene substrates as well as levulinic acid and methyl levulinate Q3 .Please check this proof carefully. Our staff will not read it in detail after you have returned it.Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with electronic notes attached -do not change the text within the PDF file or send a revised manuscript. Corrections at this stage should be minor and not involve extensive changes. All corrections must be sent at the same time.Please bear in mind that minor layout improvements, e.g. in line breaking, table widths and graphic placement, are routinely applied to the final version.We will publish articles on the web as soon as possible after receiving your corrections; no late corrections will be made.Please return your final corrections, where possible within 48 hours of receipt, by e-mail to: dalton@rsc.orgQueries for the attention of the authors

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“…In biological fluids, DA, UA, and AA co-exist and, due to the similarity of their oxidation potentials, it is difficult to conduct a simultaneous determination. Various analytical methods such as spectrophotometry 15 , electrochemical 16 , enzymatic-colorimetric 17,18 , fluorescence 16,19 , high-performance liquid chromatography (HPLC) 20 , and chemiluminescence 16 were used to determine these three bioactive molecules together. However, the applicability of these techniques relatively difficult and requires high cost in most cases; for these reasons, it is required to develop new methods to achieve easy utilization, cost-effective, and reusable.…”

mentioning

confidence: 99%

Palladium supported on polypyrrole/reduced graphene oxide nanoparticles for simultaneous biosensing application of ascorbic acid, dopamine, and uric acid

Demirkan

Bozkurt

Cellat

et al. 2020

Sci Rep

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In this study, we report a facile and effective production process of palladium nanoparticles supported on polypyrrole/reduced graphene oxide (rGo/pd@ppy nps). A novel electrochemical sensor was fabricated by incorporation of the prepared nps onto glassy carbon electrode (Gce) for the simultaneous detection of ascorbic acid (AA), dopamine (DA) and uric acid (UA). the electrodes modified with rGO/Pd@PPy NPs were well decorated on the GCE and exhibited superior catalytic activity and conductivity for the detection of these molecules with higher current and oxidation peak intensities. Simultaneous detection of these molecules was achieved due to the high selectivity and sensitivity of rGo/pd@ppy nps. for each biomolecule, well-separated voltammetric peaks were obtained at the modified electrode in cyclic voltammetry (CV) and differential pulse voltammetry (DPV) measurements. Additionally, the detection of these molecules was performed in blood serum samples with satisfying results. the detection limits and calibration curves for AA, DA, and UA were found to be 4.9 × 10 −8 , 5.6 × 10 −8 , 4.7 × 10 −8 M (S/n = 3) and ranging from 1 × 10 −3 to 1.5 × 10 −2 M (in 0.1 M PBS, pH 3.0), respectively. Hereby, the fabricated rGO/Pd@PPy NPs can be used with high reproducibility, selectivity, and catalytic activity for the development of electrochemical applications for the simultaneous detection of these biomolecules.

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Atomically thin Pt shells on Au nanoparticle cores: facile synthesis and efficient synergetic catalysis

Cited by 48 publications

References 49 publications

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Chemoselective hydrogenation of arenes by PVP supported Rh nanoparticles

Palladium supported on polypyrrole/reduced graphene oxide nanoparticles for simultaneous biosensing application of ascorbic acid, dopamine, and uric acid

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