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Journal articles on the topic 'Gold/silicon catalysis'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Coulthard, I., S. Degen, Y. J. Zhu, and T. K. Sham. "Gold nanoclusters reductively deposited on porous silicon: morphology and electronic structures." Canadian Journal of Chemistry 76, no. 11 (1998): 1707–16. http://dx.doi.org/10.1139/v98-146.

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Utilizing porous silicon as a reducing agent and a substrate, gold complex ions [AuCl4]- were reduced from aqueous solution to produce nanoparticles of gold upon the surface of porous silicon. Scanning electron microscopy (SEM) was utilized to study the morphology of the porous silicon layers and the deposits of gold nanoparticles. It is found that preparation conditions have a profound effect on the morphology of the deposits, especially on porous silicon prepared from a p-type wafer. The gold nanoparticles, varying from micrometric aggregates of clusters of the order of 10 nm, to a distribut

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2

Hashmi, A. Stephen K., Tanuja Dondeti Ramamurthi, Matthew H. Todd, Althea S. K. Tsang, and Katharina Graf. "Gold-Catalysis: Reactions of Organogold Compounds with Electrophiles." Australian Journal of Chemistry 63, no. 12 (2010): 1619. http://dx.doi.org/10.1071/ch10342.

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Different arylgold(i), one alkynylgold(i), and one vinylgold(i) triphenylphosphane complexes were subjected to electrophilic halogenation reagents. With N-chlorosuccinimid, N-bromosuccinimid, and N-iodosuccinimid as well as the Barluenga reagent, selectively halogenated compounds were obtained. Trifluoroacetic acid, as a source of protons, leads to a clean protodeauration. With N-fluorobenzenesulfonimide or Selectfluor, exclusively a homocoupling was observed. For the precursor of the vinylgold(i) complex, a similar oxidative coupling could be induced by gold(iii) chloride. Reactions with sili

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3

Süzer, Sefik, and Ömer Dag. "Reductive deposition of Au3+(aq) on oxidized silicon surfaces." Canadian Journal of Chemistry 78, no. 4 (2000): 516–19. http://dx.doi.org/10.1139/v00-039.

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X-ray photoelectron spectroscopy (XPS) is used to determine the oxidation state of gold deposited from an aqueous solution of AuCl4- on to various oxidized surfaces of silicon. Although the observed Au4f signal decreased with the thickness of the oxide layer, the oxidation state of Au was determined as 0 for all the samples analyzed. From the angular dependence of the Si2p and Au4f signals it was determined that Au is deposited on top of the oxidized surfaces of metallic silicon. It is postulated that from an aqueous solution of AuCl4-, gold would deposit in its zerovalent form on to any surfa

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4

Pastre, Aymeric, Odile Cristini, Alexandre Boe, et al. "Porous Gold Films Fabricated by Wet-Chemistry Processes." Journal of Nanomaterials 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/3536153.

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Porous gold films presented in this paper are formed by combining gold electroless deposition and polystyrene beads templating methods. This original approach allows the formation of conductive films (2 × 106 (Ω·cm)−1) with tailored and interconnected porosity. The porous gold film was deposited up to 1.2 μm on the silicon substrate without delamination. An original zirconia gel matrix containing gold nanoparticles deposited on the substrate acts both as an adhesion layer through the creation of covalent bonds and as a seed layer for the metallic gold film growth. Dip-coating parameters and go

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5

Zhang, Peng, Andy Yuan-Chi Chu, Tsun-Kong Sham, Yun Yao, and Shuit-Tong Lee. "Chemical synthesis and structural studies of thiol-capped gold nanoparticles." Canadian Journal of Chemistry 87, no. 1 (2009): 335–40. http://dx.doi.org/10.1139/v08-135.

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We report the chemical synthesis and structural studies of thiol-capped Au nanoparticles (NPs) using extended X-ray absorption fine structures (EXAFS) and high-resolution transmission electron microscopy (HRTEM). Synthesis of Au NPs was conducted in one case in a toluene/water two-phase system using alkanethiols with varied hydrocarbon chain length (C6, C12, and C18), resulting in NPs of sizes ranging from 1.6 nm to 5.4 nm. Au L3-edge EXAFS reveals a systematical trend of the local structure of Au in the NPs when the Au/S ratio and chain-length of thiols are varied. In another synthesis, thiol

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6

Lewis, James, and David J. Smith. "Structural rearrangements in small gold particles." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 640–41. http://dx.doi.org/10.1017/s0424820100155177.

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A knowledge of the structure of small metal particles is fundamental to understanding their role in heterogeneous catalysis. It is therefore of much topical interest that structural rearrangements have been found to take place as a result of intense electron irradiation within the electron microscope. Initial observations were of gold particles on supports of carbon and silica-covered silicon, but further studies confirmed that qualitatively similar behaviour also took place for particles of Pt, Ru and Rh. Some of the factors which influence the motion have been noted, including the particle s

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7

Liu, Yuelong, Merlin L. Bruening, David E. Bergbreiter, and Richard M. Crooks. "Multilayer Dendrimer–Polyanhydride Composite Films on Glass, Silicon, and Gold Wafers." Angewandte Chemie International Edition in English 36, no. 19 (1997): 2114–16. http://dx.doi.org/10.1002/anie.199721141.

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8

Platnich, Casey M., Abhinandan Banerjee, Vinayaraj Ozhukil Kollath, Kunal Karan, and Simon Trudel. "Thiol-ene click microcontact printing of gold nanoparticles onto silicon surfaces." Canadian Journal of Chemistry 96, no. 2 (2018): 190–95. http://dx.doi.org/10.1139/cjc-2017-0321.

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We report a novel process to selectively pattern nanomaterials, specifically gold nanoparticles, onto a silicon surface through “click” chemistry, to consistently and efficiently join together small units through a quick and simple reaction. We employed the UV-initiated thiol-ene reaction, which is used in tandem with microcontact printing. Dithiol-capped nanoparticles were used as a printing ink and were grafted onto ene-terminated Si(100) wafers by pressing a nanoparticle-impregnated poly(dimethylsiloxane) stamp, while irradiating with ultraviolet light to activate a radical initiator. The r

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9

Cai, Jiandong, Chen Li, Na Kong, et al. "Tailored multifunctional micellar brushes via crystallization-driven growth from a surface." Science 366, no. 6469 (2019): 1095–98. http://dx.doi.org/10.1126/science.aax9075.

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The creation of nanostructures with precise chemistries on material surfaces is of importance in a wide variety of areas such as lithography, superhydrophobicity, and cell adhesion. We describe a platform for surface functionalization that involves the fabrication of cylindrical micellar brushes on a silicon wafer through seeded growth of crystallizable block copolymers at the termini of immobilized, surface-confined crystallite seeds. The density, length, and coronal chemistry of the micellar brushes can be precisely tuned, and post-growth decoration with nanoparticles enables applications in

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10

Shtepliuk, Ivan, Ivan G. Ivanov, Nikolaos Pliatsikas, et al. "Clustering and Morphology Evolution of Gold on Nanostructured Surfaces of Silicon Carbide: Implications for Catalysis and Sensing." ACS Applied Nano Materials 4, no. 2 (2021): 1282–93. http://dx.doi.org/10.1021/acsanm.0c02867.

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11

Suárez-Pantiga, Samuel, and José M. González. "Electrophilic activation of unsaturated systems: Applications to selective organic synthesis." Pure and Applied Chemistry 85, no. 4 (2013): 721–39. http://dx.doi.org/10.1351/pac-con-12-10-24.

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Selected examples from previous work on iodonium-triggered approaches for the functionalization of unsaturated systems, which summarize innovative transformations, are presented. This section is mostly focused on C–C bond-forming processes from alkynes that are directly bonded to relevant heteroatoms, such as iodine, silicon, or sulfur. Besides, recent advances related to iodonium-promoted C–H functionalization reactions are briefly outlined. A second section shows representative examples of our current research activity on electrophilic reactions aimed at the activation of unsaturated systems

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12

Abulikemu, Mutalifu, Eman Husni Da'as, Hanna Haverinen, Dongkyu Cha, Mohammad Azad Malik, and Ghassan Elie Jabbour. "In Situ Synthesis of Self-Assembled Gold Nanoparticles on Glass or Silicon Substrates through Reactive Inkjet Printing." Angewandte Chemie International Edition 53, no. 2 (2013): 420–23. http://dx.doi.org/10.1002/anie.201308429.

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13

Nishioka, Kensuke, Susumu Horita, Keisuke Ohdaira, and Hideki Matsumura. "Antireflection subwavelength structure of silicon surface formed by wet process using catalysis of single nano-sized gold particle." Solar Energy Materials and Solar Cells 92, no. 8 (2008): 919–22. http://dx.doi.org/10.1016/j.solmat.2008.02.017.

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14

Stolle, Heike Lisa Kerstin Stephanie, Andrea Csáki, Jan Dellith, and Wolfgang Fritzsche. "Modification of Surface Bond Au Nanospheres by Chemically and Plasmonically Induced Pd Deposition." Nanomaterials 11, no. 1 (2021): 245. http://dx.doi.org/10.3390/nano11010245.

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In this work we investigated methods of modifying gold nanospheres bound to a silicon surface by depositing palladium onto the surfaces of single nanoparticles. Bimetallic Au-Pd nanoparticles can thus be gained for use in catalysis or sensor technology. For Pd deposition, two methods were chosen. The first method was the reduction of palladium acetate by ascorbic acid, in which the amounts of palladium acetate and ascorbic acid were varied. In the second method we utilized light-induced metal deposition by making use of the plasmonic effect. Through this method, the surface bond nanoparticles

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15

González, Jairo, Darío Allegue, Sergio Fernández, Miguel A. Rodríguez, Javier Santamaría, and Alfredo Ballesteros. "Divergent Gold‐Catalyzed Rearrangement of 1‐Alkenyl‐2‐alkynylcyclopropanes: Enyne Transformation Controlled by a Silicon Moiety." Advanced Synthesis & Catalysis 362, no. 18 (2020): 3912–18. http://dx.doi.org/10.1002/adsc.202000521.

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16

Ikramova, Saltanat B., Zhandos N. Utegulov, Kadyrjan K. Dikhanbayev, et al. "Surface-Enhanced Raman Scattering from Dye Molecules in Silicon Nanowire Structures Decorated by Gold Nanoparticles." International Journal of Molecular Sciences 23, no. 5 (2022): 2590. http://dx.doi.org/10.3390/ijms23052590.

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Silicon nanowires (SiNWs) prepared by metal-assisted chemical etching of crystalline silicon wafers followed by deposition of plasmonic gold (Au) nanoparticles (NPs) were explored as templates for surface-enhanced Raman scattering (SERS) from probe molecules of Methylene blue and Rhodamine B. The filling factor by pores (porosity) of SiNW arrays was found to control the SERS efficiency, and the maximal enhancement was observed for the samples with porosity of 55%, which corresponded to dense arrays of SiNWs. The obtained results are discussed in terms of the electromagnetic enhancement of SERS

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17

Ren, Yi, Thomas Linder, and Thomas Baumgartner. "Synthesis and properties of ladder-type 1,4-dihydro-1,4-phosphasilins." Canadian Journal of Chemistry 87, no. 9 (2009): 1222–29. http://dx.doi.org/10.1139/v09-108.

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The synthesis and advanced characterization of a series of extended dithieno[2,3-b:3′,2′-e][1,4-dihydro-1,4]phosphasilins is reported, and their suitability as new building blocks for organic electronics is evaluated. Synthesis of basic, as well as benzo-extended dithienophosphasilins, can be achieved using appropriate 2,3-dibromothiophene precursors in a two-step protocol introducing the silicon and phosphorus centers subsequently. Both ladder-type materials show the typical reactivity of trivalent phosphorus species and can quantitatively be converted into the corresponding oxides or gold co

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18

Nyembe, Sanele, Gebhu Ndlovu, Poslet Shumbula, Richard Harris, Nosipho Moloto, and Lucky Sikhwivhilu. "Laser Assisted Catalytic Growth of Silicon Nanowires Using Gold and Nickel Catalysts." Journal of Nanoscience and Nanotechnology 21, no. 10 (2021): 5260–65. http://dx.doi.org/10.1166/jnn.2021.19448.

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Laser assisted synthesis of silicon nanowires (SiNWs) was successfully achieved through the use of gold and nickel as catalysts. The diameter of the resulting SiNWs was found to be dependent on that of the catalyst in the case of gold catalyst. The gold catalysed silicon nanowires were unevenly curved and branched owing to the high kinetic energy possessed by gold nanoparticles (AuNPs) at relatively high processing temperature. The use of nickel as catalyst resulted in the formation of several SiNWs on a single nickel catalyst crystallite due to interconnection of the nickel metal crystallites

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19

Moreau, François, and Geoffrey C. Bond. "Oxidative dehydrogenation of 1-butene catalysed by silica-supported gold and silicon carbide, alone and in admixture." Catalysis Communications 8, no. 9 (2007): 1403–5. http://dx.doi.org/10.1016/j.catcom.2006.12.003.

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20

Peiris, Chandramalika R., Yan B. Vogel, Anton P. Le Brun, et al. "Metal–Single-Molecule–Semiconductor Junctions Formed by a Radical Reaction Bridging Gold and Silicon Electrodes." Journal of the American Chemical Society 141, no. 37 (2019): 14788–97. http://dx.doi.org/10.1021/jacs.9b07125.

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21

Svirshchevskaya, Elena V., Nina V. Sharonova, Rimma A. Poltavtseva, et al. "Silicon–Gold Nanoparticles Affect Wharton’s Jelly Phenotype and Secretome during Tri-Lineage Differentiation." International Journal of Molecular Sciences 23, no. 4 (2022): 2134. http://dx.doi.org/10.3390/ijms23042134.

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Multiple studies have demonstrated that various nanoparticles (NPs) stimulate osteogenic differentiation of mesenchymal stem cells (MSCs) and inhibit adipogenic ones. The mechanisms of these effects are not determined. The aim of this paper was to estimate Wharton’s Jelly MSCs phenotype and humoral factor production during tri-lineage differentiation per se and in the presence of silicon–gold NPs. Silicon (SiNPs), gold (AuNPs), and 10% Au-doped Si nanoparticles (SiAuNPs) were synthesized by laser ablation, characterized, and studied in MSC cultures before and during differentiation. Humoral fa

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22

Flimelová, Miroslava, Yury V. Ryabchikov, Jan Behrends, and Nadezhda M. Bulgakova. "Environmentally Friendly Improvement of Plasmonic Nanostructure Functionality towards Magnetic Resonance Applications." Nanomaterials 13, no. 4 (2023): 764. http://dx.doi.org/10.3390/nano13040764.

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Plasmonic nanostructures have attracted a broad research interest due to their application perspectives in various fields such as biosensing, catalysis, photovoltaics, and biomedicine. Their synthesis by pulsed laser ablation in pure water enables eliminating various side effects originating from chemical contamination. Another advantage of pulsed laser ablation in liquids (PLAL) is the possibility to controllably produce plasmonic nanoparticles (NPs) in combination with other plasmonic or magnetic materials, thus enhancing their functionality. However, the PLAL technique is still challenging

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23

Qiu, Jingjing, Timothy Lin, Kyra M. K. Yap, Thomas F. Jaramillo, and Adam C. Nielander. "Operando Electrochemical Raman Spectroscopy Studies of Working Electrodes in (photo)Electrocatalytic Water Splitting." ECS Meeting Abstracts MA2024-02, no. 60 (2024): 4073. https://doi.org/10.1149/ma2024-02604073mtgabs.

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Raman spectroscopy has been applied as a vibrational spectroscopic technique in the field of chemical, materials, and life sciences. Recently, the operando electrochemical Raman spectroscopy has received more research attention for the characterizations of working electrodes in (photo)electrochemical catalysis. This technique allows for the characterization of the fate of electrocatalysts on the surface of the working electrodes under electrochemical reaction conditions, which is crucial to determine the chemical identify of the electrocatalysts. We apply the operando electrochemical Raman spe

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24

Seregin, Ilya V., and Vladimir Gevorgyan. "Gold-Catalyzed 1,2-Migration of Silicon, Tin, and Germanium en Route to C-2 Substituted Fused Pyrrole-Containing Heterocycles." Journal of the American Chemical Society 128, no. 37 (2006): 12050–51. http://dx.doi.org/10.1021/ja063278l.

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25

Abulikemu, Mutalifu, Eman Husni Da'as, Hanna Haverinen, Dongkyu Cha, Mohammad Azad Malik, and Ghassan Elie Jabbour. "Inside Back Cover: In Situ Synthesis of Self-Assembled Gold Nanoparticles on Glass or Silicon Substrates through Reactive Inkjet Printing (Angew. Chem. Int. Ed. 2/2014)." Angewandte Chemie International Edition 53, no. 2 (2013): 599. http://dx.doi.org/10.1002/anie.201310429.

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26

Islam, Mohammad, Zineb Matouk, Nadir Ouldhamadouche, Jean-Jacques Pireaux, and Amine Achour. "Plasma Treatment of Polystyrene Films—Effect on Wettability and Surface Interactions with Au Nanoparticles." Plasma 6, no. 2 (2023): 322–33. http://dx.doi.org/10.3390/plasma6020022.

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Polystyrene (PS)/Gold (Au) is used for a wide range of applications, including composite nanofibers, catalysis, organic memory devices, and biosensing. In this work, PS films were deposited on silicon substrates via a spin coating technique followed by treatment with argon (Ar) plasma admixed with ammonia (NH3), oxygen (O2), or tetrafluoroethane (C2H2F4). X-Ray photoelectron spectroscopy (XPS) analysis revealed modified surface chemistry for Ar/O2, Ar/NH3, or Ar/C2H2F4 plasma treatment through the incorporation of oxygen, nitrogen, or fluorine groups, respectively. Size-controlled magnetron sp

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27

De Leo, Natascia, Luca Boarino, Matteo Fretto, et al. "Porous Silicon Nanowires: Evaluation of Thermal Properties By a Vamas Interlaboratory Comparison on Scanning Thermal Microscopy." ECS Meeting Abstracts MA2024-02, no. 13 (2024): 1581. https://doi.org/10.1149/ma2024-02131581mtgabs.

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The Versailles Project on Advanced Materials and Standards (VAMAS) has been established by G7 in 1982 and supports world trade in products dependent on advanced materials technologies, through International collaborative projects aimed at providing the technical basis for harmonized measurements, testing, specifications, and standards. It is composed by more than 15 Technical Working Areas devoted to the standardization and measurements of advanced materials. The participants are selected on a volunteering base and must represent at least the three international areas, Europe, Americas and Eas

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28

Cui, Linan, Pedro Oliveira, Ayse Turak, and Kyla Sask. "Quantification of Reverse Micelle Synthesized Gold Nanoparticles (AuNPs) for Biosensing." ECS Meeting Abstracts MA2025-01, no. 60 (2025): 2876. https://doi.org/10.1149/ma2025-01602876mtgabs.

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INTRODUCTION: Nanoparticles exhibit significantly different physical and chemical properties compared to their bulk counterparts, due to the large surface area-to-volume ratio. In recent years, there has been a growing interest in using these nano-systems in various applications, such as biosensing, drug delivery, imaging, catalysis, and environmental and energy-based applications. Reverse micelle deposition (RMD) is a polymer templating method that uses di-block copolymers to produce highly uniform, well-dispersed nanoparticles with controlled size and spacing [1]. In RMD, an amphiphilic di-b

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29

Nanev, Christo N., Emmanuel Saridakis, Lata Govada, and Naomi E. Chayen. "Protein Crystals Nucleated and Grown by Means of Porous Materials Display Improved X-ray Diffraction Quality." International Journal of Molecular Sciences 23, no. 18 (2022): 10676. http://dx.doi.org/10.3390/ijms231810676.

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Well-diffracting protein crystals are indispensable for X-ray diffraction analysis, which is still the most powerful method for structure-function studies of biomolecules. A promising approach to growing such crystals is the use of porous nucleation-inducing materials. However, while protein crystal nucleation in pores has been thoroughly considered, little attention has been paid to the subsequent growth of crystals. Although the nucleation stage is decisive, it is the subsequent growth of crystals outside the pore that determines their diffraction quality. The molecular-scale mechanism of gr

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30

Lo Faro, Maria Josè, Ileana Ielo, Dario Morganti, et al. "Alkoxysilane-Mediated Decoration of Si Nanowires Vertical Arrays with Au Nanoparticles as Improved SERS-Active Platforms." International Journal of Molecular Sciences 24, no. 23 (2023): 16685. http://dx.doi.org/10.3390/ijms242316685.

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The search for improved transducers to fabricate better-performing (bio)sensors is a challenging but rewarding endeavor aiming to better diagnose and treat diseases. In this paper, we report on the decoration of a dense vertical array of ultrathin silicon nanowires (Si NWs), produced by metal-assisted chemical etching, with 20 nm gold nanoparticles (Au NPs) for surface-enhanced Raman scattering (SERS) applications. To optimize the production of a uniform 3D SERS active platform, we tested different Si NW surface functionalizations with various alkoxysilanes before Au decoration. Scanning elect

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31

Baratto, C., G. Sberveglieri, E. Comini, et al. "Gold-catalysed porous silicon for NOx sensing." Sensors and Actuators B: Chemical 68, no. 1-3 (2000): 74–80. http://dx.doi.org/10.1016/s0925-4005(00)00464-0.

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32

Zhu, Renkang, and Zhifeng Ding. "Enhancing image quality of scanning electrochemical microscopy by improved probe fabrication and displacement." Canadian Journal of Chemistry 83, no. 10 (2005): 1779–91. http://dx.doi.org/10.1139/v05-189.

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Scanning electrochemical microscopy (SECM) is a powerful tool for its wide applications in determining charge transfer kinetics, imaging chemical reactions and topography, as well as fabricating microstructures at various interfaces and (or) surfaces. Imaging applications, in particular, rely on the natures of SECM probes and the scanning systems to move them in the vicinity of interfaces. While progress has been made in new approaches to tip fabrication, there are few reports on the improvement of the tip positioning system to enhance SECM image quality. We have recently built an advanced SEC

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33

Müller, Martin, Jan Kočka, Hassan G. El Gohary, et al. "Preparation and testing of silicon nanowires." Canadian Journal of Physics 92, no. 7/8 (2014): 819–21. http://dx.doi.org/10.1139/cjp-2013-0584.

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Here we present two ways of preparing lateral (in plane) silicon nanowires with the help of gold nanoislands catalysed plasma enhanced chemical vapour deposition. The role of the applied potential and eventual consecutive hydrogen plasma treatment is tested together with the thickness of the thin Au layer used for self-organised preparation of Au nanoislands.

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Yao, Yuan, Fanghua Li, and Shuit-Tong Lee. "Oriented silicon nanowires on silicon substrates from oxide-assisted growth and gold catalysts." Chemical Physics Letters 406, no. 4-6 (2005): 381–85. http://dx.doi.org/10.1016/j.cplett.2005.03.027.

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Mohammed, Yasir Hussein, Samsudi Bin Sakrani, and Md Supar Rohani. "Tunable morphological evolution of in situ gold catalysts mediated silicon nanoneedles." Materials Science in Semiconductor Processing 50 (August 2016): 36–42. http://dx.doi.org/10.1016/j.mssp.2016.04.014.

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36

Ko, Tsung-Shine, Tien-Chang Lu, Chia-Pu Chu, Hao-Chung Kuo, and Shing-Chung Wang. "Thermally Evaporated In2O3 Nanoloquats with Tunable Broad-Band Emissions." Journal of Nanoscience and Nanotechnology 8, no. 9 (2008): 4395–98. http://dx.doi.org/10.1166/jnn.2008.288.

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We describe synthesis of In2O3 nanoloquats grown by thermal evaporation under different oxygen flow rates and temperatures. Gold nanoparticles were used the catalysts and were dispersed on the silicon wafer to assist growth of In2O3 nanoloquats. The nanostructures of In2O3 nanoloquats were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The photoluminescence study reveals that In2O3 nanoloquats could emit different broad-band luminescence peaks in the range of 410∼620 nm by tuning different oxygen flow rates and temperatures. The wide tuni

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37

Suzuki, Hiroshi, Hiroshi Araki, Masahiro Tosa, and Tetsuji Noda. "Formation of Silicon Nanowires by CVD Using Gold Catalysts at Low Temperatures." MATERIALS TRANSACTIONS 48, no. 8 (2007): 2202–6. http://dx.doi.org/10.2320/matertrans.mra2007059.

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38

Parlevliet, David, and Philip Jennings. "Thin film silicon nanowire photovoltaic devices produced with gold and tin catalysts." Journal of Nanoparticle Research 13, no. 10 (2011): 4431–36. http://dx.doi.org/10.1007/s11051-011-0478-9.

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Wen, C. Y., M. C. Reuter, J. Bruley, et al. "Formation of Compositionally Abrupt Axial Heterojunctions in Silicon-Germanium Nanowires." Science 326, no. 5957 (2009): 1247–50. http://dx.doi.org/10.1126/science.1178606.

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We have formed compositionally abrupt interfaces in silicon-germanium (Si-Ge) and Si-SiGe heterostructure nanowires by using solid aluminum-gold alloy catalyst particles rather than the conventional liquid semiconductor–metal eutectic droplets. We demonstrated single interfaces that are defect-free and close to atomically abrupt, as well as quantum dots (i.e., Ge layers tens of atomic planes thick) embedded within Si wires. Real-time imaging of growth kinetics reveals that a low solubility of Si and Ge in the solid particle accounts for the interfacial abruptness. Solid catalysts that can form

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40

Matsumoto, Ayumu, Hikoyoshi Son, Makiho Eguchi, et al. "General corrosion during metal-assisted etching of n-type silicon using different metal catalysts of silver, gold, and platinum." RSC Advances 10, no. 1 (2020): 253–59. http://dx.doi.org/10.1039/c9ra08728a.

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41

Naef, Noah U., and Stefan Seeger. "Silicone Nanofilament Support Layers in an Open-Channel System for the Fast Reduction of Para-Nitrophenol." Nanomaterials 11, no. 7 (2021): 1663. http://dx.doi.org/10.3390/nano11071663.

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Chemical vapor phase deposition was used to create hydrophobic nanostructured surfaces on glass slides. Subsequently, hydrophilic channels were created by sputtering a metal catalyst on the channels while masking the outside. The surface tension gradient between the hydrophilic surface in the channels and the outside hydrophobicity formed the open-channel system. The reduction of para-nitrophenol (PNP) was studied on these devices. When compared to nanostructure-free reference systems, the created nanostructures, namely, silicone nanofilaments (SNFs) and nano-bagels, had superior catalytic per

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42

Yang, Yaoyao, Jiali Zhang, Fangwei Zhang, and Shouwu Guo. "Preparation of AuNPs/GQDs/SiO2 Composite and Its Catalytic Performance in Oxidation of Veratryl Alcohol." Journal of Nanomaterials 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/4130569.

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Composites of gold nanoparticles and graphene quantum dots (AuNPs/GQDs) exhibit excellent dispersibility in aqueous solutions. Thus, it is difficult to separate them from wet reaction systems when they are used as catalysts. To resolve this issue, in this study, an AuNPs/GQDs composite was immobilized on silicon dioxide through the hydrothermal method, which involved the formation of an amide bond between the surface GQDs of the AuNPs/GQDs composite and the amino group of the silane. The as-synthesized AuNPs/GQDs/SiO2 composite was found to be suitable for use as a heterogeneous catalyst for t

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Shanshan, WANG, YIN Shujing, LIANG Haifeng, and HAN Jun. "Research on controllable preparation and optical properties of gold catalysed silicon nanowi res." Journal of Applied Optics 40, no. 5 (2019): 738–45. http://dx.doi.org/10.5768/jao201940.0501004.

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Ernst, Owen C., Felix Lange, David Uebel, Thomas Teubner, and Torsten Boeck. "Analysis of catalyst surface wetting: the early stage of epitaxial germanium nanowire growth." Beilstein Journal of Nanotechnology 11 (September 9, 2020): 1371–80. http://dx.doi.org/10.3762/bjnano.11.121.

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The dewetting process is crucial for several applications in nanotechnology. Even though not all dewetting phenomena are fully understood yet, especially regarding metallic fluids, it is clear that the formation of nanometre-sized particles, droplets, and clusters as well as their movement are strongly linked to their wetting behaviour. For this reason, the thermodynamic stability of thin metal layers (0.1–100 nm) with respect to their free energy is examined here. The decisive factor for the theoretical considerations is the interfacial energy. In order to achieve a better understanding of th

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Forrer, Nicolas, Arianna Nigro, Gerard Gadea, and Ilaria Zardo. "Influence of Different Carrier Gases, Temperature, and Partial Pressure on Growth Dynamics of Ge and Si Nanowires." Nanomaterials 13, no. 21 (2023): 2879. http://dx.doi.org/10.3390/nano13212879.

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The broad and fascinating properties of nanowires and their synthesis have attracted great attention as building blocks for functional devices at the nanoscale. Silicon and germanium are highly interesting materials due to their compatibility with standard CMOS technology. Their combination provides optimal templates for quantum applications, for which nanowires need to be of high quality, with carefully designed dimensions, crystal phase, and orientation. In this work, we present a detailed study on the growth kinetics of silicon (length 0.1–1 μm, diameter 10–60 nm) and germanium (length 0.06

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Włodarczyk, Jakub, Julia Krajewska, Łukasz Szeleszczuk, et al. "A New Gold(III) Complex, TGS 703, Shows Potent Anti-Inflammatory Activity in Colitis via the Enzymatic and Non-Enzymatic Antioxidant System—An In Vitro, In Silico, and In Vivo Study." International Journal of Molecular Sciences 24, no. 8 (2023): 7025. http://dx.doi.org/10.3390/ijms24087025.

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Inflammatory bowel diseases (IBD) and their main representatives, Crohn’s disease and ulcerative colitis, are worldwide health-care problems with constantly increasing frequency and still not fully understood pathogenesis. IBD treatment involves drugs such as corticosteroids, derivatives of 5-aminosalicylic acid, thiopurines, and others, with the goal to achieve and maintain remission of the disease. Nowadays, as our knowledge about IBD is continually growing, more specific and effective therapies at the molecular level are wanted. In our study, we tested novel gold complexes and their potenti

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Hashiguchi, Tatsuki, Kyohei Azuma, Rin Nishinaka, Ayumu Matsumoto, and Shinji Yae. "General Corrosion and Electrode Potential in Metal-Nanoparticle-Assisted Etching of p-Type and n-Type Silicon Using Gold and Silver." ECS Meeting Abstracts MA2024-02, no. 67 (2024): 4567. https://doi.org/10.1149/ma2024-02674567mtgabs.

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Introduction When silicon (Si) modified with noble metal catalysts is immersed in a hydrofluoric acid (HF) aqueous solution containing an oxidizing agent, such as hydrogen peroxide (H2O2), a porous layer is formed on the Si surface [1]. This phenomenon is called metal-assisted etching, and it has attracted attention as a new method for producing porous Si. The etching reaction is explained by a local cell mechanism consisting of a cathodic reaction in which the oxidizing agent is reduced on the metal catalysts and an anodic reaction in which Si is oxidized. It is known that etching behavior va

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TAKASAKA, Yuichi, Ryo FUJII, Naoki YAMADA, et al. "Effects of Room Temperature Aging on Adhesion of Electroless Plating Film on Silicon Using Gold Nanoparticle Catalysts." Journal of The Surface Finishing Society of Japan 70, no. 3 (2019): 174–76. http://dx.doi.org/10.4139/sfj.70.174.

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Ng, I. K., K. Y. Kok, S. S. Zainal Abidin, et al. "Gold catalysed growth of silicon nanowires and core–shell heterostructures via solid–liquid–solid process and galvanic displacement." Materials Research Innovations 15, sup2 (2011): s55—s58. http://dx.doi.org/10.1179/143307511x13031890747732.

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Bajec, David, Matic Grom, Damjan Lašič Jurković, et al. "A Review of Methane Activation Reactions by Halogenation: Catalysis, Mechanism, Kinetics, Modeling, and Reactors." Processes 8, no. 4 (2020): 443. http://dx.doi.org/10.3390/pr8040443.

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Methane is the central component of natural gas, which is globally one of the most abundant feedstocks. Due to its strong C–H bond, methane activation is difficult, and its conversion into value-added chemicals and fuels has therefore been the pot of gold in the industry and academia for many years. Industrially, halogenation of methane is one of the most promising methane conversion routes, which is why this paper presents a comprehensive review of the literature on methane activation by halogenation. Homogeneous gas phase reactions and their pertinent reaction mechanisms and kinetics are pre

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