Solid Nanoparticles that Catalyze Biofuel Upgrade Reactions at the Water/Oil Interface

Crossley, Steven; Faria, Jimmy; Shen, Min; Resasco, Daniel E.

doi:10.1126/science.1180769

Cited by 750 publications

(636 citation statements)

References 25 publications

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“…In this approach, monodispersity of the beads was crucial since sandwich microcontact printing necessitated a bead monolayer of uniform height. This type of porous Janus particles may have totally different applications [223][224] compared to the isotropic counterparts.…”

Section: Examples Of Microfluidic Particle Productionmentioning

confidence: 99%

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Gökmen

Prez

2012

Progress in Polymer Science

451

309

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Section: Examples Of Microfluidic Particle Productionmentioning

confidence: 99%

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Gökmen

Prez

2012

Progress in Polymer Science

451

309

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“…Bifunctional catalysts with PGM have been tested on a variety of supports such as silicates [15], [27], aluminates [8], [28], [29], and carbon-based structures [30]- [32].…”

Section: Bifunctional Catalysis: Platinum Group Metals On Other Supportsmentioning

confidence: 99%

Hydropyrolysis of Lignin Using Pd/HZSM-5

Jan

Marchand

Anjos³

et al. 2015

Energy Fuels

107

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Hydropyrolysis of Lignin using Pd/HZSM-5 Oliver D. Jan Chair of the Supervisory Committee:Dr. Fernando Resende School of Environmental and Forest SciencesThe aim of this work was to study the formation of cycloalkanes from hydropyrolysis of lignin with HZSM-5 and Pd/HZSM-5 catalysts. We observed that palladium supported on HZSM-5 catalyzed hydrogenation and deoxygenation reactions that converted phenolic compounds into aromatic hydrocarbons and cycloalkanes. This study analyzed the effect of the catalyst-to-lignin ratio, H 2 partial pressure, and temperature on the yields of hydrocarbons with HZSM-5 and Pd/HZSM-5. Pd/HZSM-5 produced 44% more aromatic hydrocarbons than HZSM-5 at a catalyst-to-lignin ratio of 20:1, 650ºC, and a constant H 2 partial pressure of 1.7 MPa. The presence of palladium led to significant difference in yields only at 1.7 MPa H 2 partial pressure.In both the in-situ and ex-situ experiments conducted, hydropyrolysis temperature played a substantial role in the equilibrium conversion of hydrogenation reactions that led to cycloalkanes directly from lignin.iv Dedication This thesis is dedicated to my family for all their love and support v Acknowledgements

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“…1,2 More recently, plasmonic NPs at LLIs have been reported to possess novel "metal liquid like" properties 3 that have sparked a renewed interest. Driven by the growing need for cheap, fast and reproducible bottom-up assembly for nanotechnological applications, the unique optical, 4 magnetic, 5 electrical 6 and chemical 7 properties of such films has attracted intensive research in a rapidly growing field.…”

mentioning

confidence: 99%

Plasmonic Ruler at the Liquid–Liquid Interface

et al. 2012

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We report on a simple, fast, and inexpensive method to study adsorption and desorption of metallic nanoparticles at a liquid/liquid interface. These interfaces provide an ideal platform for the formation of two-dimensional monolayers of nanoparticles, as they form spontaneously, cannot be broken, and are defectcorrecting, acting as 2D 'nanoparticle traps'. Such two-dimensional self-assembled nanoparticle arrays have a vast range of potential applications in displays, catalysis, plasmonic rulers, optoelectronics, sensors and detectors. Here, we show that 16 nm diameter gold nanoparticles can be controllably adsorbed to a water/1,2-dichloroethane interface, and we can direct the average inter-particle spacing at the interface over the range 6-35 nm. The particle density and average inter-particle spacing are experimentally assessed by measuring the optical plasmonic response of the nanoparticles in the bulk and at the interface, and by comparing the experimental data with existing theoretical results.Keywords: liquid-liquid interface, Plasmonic Ruler, Nanoparticles, Self Assembly, Centrifugation. Nanoparticle (NP) adsorption at liquid-liquid interfaces (LLI) is a well established phenomenon that was first reported independently more than a century ago by Ramsden and Pickering. 1, 2 More recently, plasmonic NPs at LLIs have been reported to possess novel "metal liquid like" properties 3 that have sparked a renewed interest. Driven by the growing need for cheap, fast and reproducible bottom-up assembly for nanotechnological applications, the unique optical, 4 magnetic, 5 electrical 6 and chemical 7 properties of such films has attracted intensive research in a rapidly growing field.NP assemblies at LLIs hold great promise in diverse fields ranging from electrovariable optics 8 to templates for hierarchical self assembly, 9 and plasmonic rulers. 10 One of the main benefits of localising NPs at a LLI for these applications is the aforementioned self-assembly. 11 Currently, most technological applications of nanoassemblies are based around solid-state fabrication. Although the control that the solid interface offers is unparalleled, it does have several drawbacks when compared to a LLI. One such drawback is topological defects -these can be introduced either during or post-manufacturing and are extremely difficult to correct. In fact it is often easier to fabricate a new device rather than attempting to repair defects. Conversely, a LLI system has the ability to self-correct without any external manipulation. 12 An additional drawback of a solid state system becomes clear when introducing the exciting concept of a plasmonic ruler. [13][14][15] The coupling between excitations of localized plasmons in NPs can allow for precise spatial information. This concept has been demonstrated between 2D arrays, 10 particle dimers 14 at solid interfaces and tethered NPs in bulk solution. 16 It has even been recently demonstrated to provide 3-dimensional structural information. 17 The use of plasmonic particles at the LLI sh...

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Solid Nanoparticles that Catalyze Biofuel Upgrade Reactions at the Water/Oil Interface

Cited by 750 publications

References 25 publications

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Hydropyrolysis of Lignin Using Pd/HZSM-5

Plasmonic Ruler at the Liquid–Liquid Interface

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