Relevant bibliographies by topics / Catalytic gold nanoparticles

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Catalytic gold nanoparticles'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Catalytic gold nanoparticles"

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Nuti, Silvia, Javier Fernández-Lodeiro, Jose M. Palomo, José-Luis Capelo-Martinez, Carlos Lodeiro, and Adrián Fernández-Lodeiro. "Synthesis, Structural Analysis, and Peroxidase-Mimicking Activity of AuPt Branched Nanoparticles." Nanomaterials 14, no. 13 (2024): 1166. http://dx.doi.org/10.3390/nano14131166.

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Bimetallic nanomaterials have generated significant interest across diverse scientific disciplines, due to their unique and tunable properties arising from the synergistic combination of two distinct metallic elements. This study presents a novel approach for synthesizing branched gold–platinum nanoparticles by utilizing poly(allylamine hydrochloride) (PAH)-stabilized branched gold nanoparticles, with a localized surface plasmon resonance (LSPR) response of around 1000 nm, as a template for platinum deposition. This approach allows precise control over nanoparticle size, the LSPR band, and the
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Wang, Yanwei, and Michael Seidel. "Integration of 3D Hydrodynamic Focused Microreactor with Microfluidic Chemiluminescence Sensing for Online Synthesis and Catalytical Characterization of Gold Nanoparticles." Sensors 21, no. 7 (2021): 2290. http://dx.doi.org/10.3390/s21072290.

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Chemiluminescence assays have shown great advantages compared with other optical techniques. Gold nanoparticles have drawn much attention in chemiluminescence analysis systems as an enzyme-free catalyst. The catalytic activity of gold nanoparticles for chemiluminescence sensing depends on size, shape and the surface charge property, which is hard to characterize in batches. As there is no positive or negative correlation between chemiluminescence signals and sizes of gold nanoparticles, the best way to get optimal gold nanoparticles is to control the reaction conditions via online chemilumines
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Abkhalimov, Evgeny V., and Boris G. Ershov. "Difference in the Catalytic Activity of Atoms in the Corners and at the Edges of Gold Nanoparticles: Hydrogen Isotope Exchange Reaction." International Journal of Molecular Sciences 25, no. 22 (2024): 12022. http://dx.doi.org/10.3390/ijms252212022.

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The goal of this work is to investigate the catalytic activities of low-coordination atoms located in gold nanoparticles. Gold nanoparticles with sizes from 0.7 to 40 nm deposited on γ-Al2O3 were used as a catalyst. Synthesized gold nanoparticles and prepared catalysts were characterized by HRTEM, SEM, XRD, DLS, and UV-Vis spectroscopy. The specific activity of gold nanoparticles towards the isotope exchange reaction at 77 K was studied as a function of nanoparticle size. The catalytic activity increases significantly when the particle size is less than 3 nm. The activities of low-coordination
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Stolle, Heike Lisa Kerstin Stephanie, Jonas Jakobus Kluitmann, Andrea Csáki, Johann Michael Köhler, and Wolfgang Fritzsche. "Shape-Dependent Catalytic Activity of Gold and Bimetallic Nanoparticles in the Reduction of Methylene Blue by Sodium Borohydride." Catalysts 11, no. 12 (2021): 1442. http://dx.doi.org/10.3390/catal11121442.

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In this study the catalytic activity of different gold and bimetallic nanoparticle solutions towards the reduction of methylene blue by sodium borohydride as a model reaction is investigated. By utilizing differently shaped gold nanoparticles, i.e., spheres, cubes, prisms and rods as well as bimetallic gold–palladium and gold–platinum core-shell nanorods, we evaluate the effect of the catalyst surface area as available gold surface area, the shape of the nanoparticles and the impact of added secondary metals in case of bimetallic nanorods. We track the reaction by UV/Vis measurements in the ra
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Lee, You Jeong, Song-Hyun Cha, Kyoung Jin Lee, Yeong Shik Kim, Seonho Cho, and Youmie Park. "Plant Extract (Bupleurum falcatum) as a Green Factory for Biofabrication of Gold Nanoparticles." Natural Product Communications 10, no. 9 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000927.

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This work describes a biofabrication process for gold nanoparticles in which the plant extract ( Bupleurum falcatum) is used as a reducing agent to convert gold ions to gold nanoparticles. Biofabricated gold nanoparticles with spherical shapes were observed with an average diameter of 10.5 ± 2.3 nm. The color of the gold nanoparticles was purple, with a surface plasmon resonance peak at 542 nm. The face-centered cubic structure of crystalline gold was confirmed by high-resolution X-ray diffraction patterns. The biofabricated gold nanoparticles demonstrated excellent catalytic activity towards
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Cui, Yanshuai, Shukai Li, Ning Yu, Xiaodong Yu, Xianbing Ji, and Longgang Wang. "Highly Biocompatible Hemoglobin-Stabilized Gold Nanoparticles for an Enhanced Catalytic Reduction of 4-Nitrophenol." Inorganics 12, no. 5 (2024): 136. http://dx.doi.org/10.3390/inorganics12050136.

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4-nitrophenol (4-NP) is a frequently encountered toxic phenolic organic pollutant in water. It is important to develop a simple method to treat 4-NP. Small and monodispersed gold nanoparticles often have good catalytic performance of 4-NP. Hemoglobin (Hb) is a kind of common and important protein in organisms. Herein, highly biocompatible bovine hemoglobin-stabilized gold nanoparticles (Aun-Hb NPs) were synthesized using hemoglobin as a biological template. Then, the size, zeta potential, and composition of Aun-Hb NPs were investigated by transmission electron microscopy, dynamic light scatter
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Lee, You Jeong, and Youmie Park. "Green Synthetic Nanoarchitectonics of Gold and Silver Nanoparticles Prepared Using Quercetin and Their Cytotoxicity and Catalytic Applications." Journal of Nanoscience and Nanotechnology 20, no. 5 (2020): 2781–90. http://dx.doi.org/10.1166/jnn.2020.17453.

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Quercetin is a flavonoid and is abundant in the plant kingdom. Green nanoparticles (gold and silver) were synthesized by using quercetin as a reductant via a green route for their potential nanoarchitechtonic applications. There were no toxic chemicals involved during the synthesis. The gold and silver nanoparticles exhibited surface plasmon resonance at 527 nm and 401 nm, respectively. Both nanoparticle solutions retained excellent colloidal shelf stability for 7 days and in cell culture medium. The crystal structure of the nanoparticles was observed by X-ray diffraction analysis. Field emiss
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Deshpande, Dipali Dinkar, Varsha Pandit, Dhananjay Gunawat, and Gauri Sanpurkar. "Nanoparticles revolution: The role of gold and chitosan in endodontics irrigation." Bioinformation 21, no. 05 (2025): 1239–44. https://doi.org/10.6026/973206300211239.

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The field of endodontic irrigation has seen nanoparticle innovations which offer improved disinfection together with better clinical treatment results. Nanoparticles composed of gold and chitosan show significant antibacterial properties as well as anti-inflammatory characteristics and biocompatibility potential. The photo thermal properties and catalytic properties are limited to gold nanoparticles whereas the natural antimicrobial capabilities and adhesive properties are limited to chitosan nanoparticles. Nanoparticles play an essential role in endodontic irrigation. However, more clinical w
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Dutta, Sutapa, Stefano Corni, and Giorgia Brancolini. "Molecular Dynamics Simulations of a Catalytic Multivalent Peptide–Nanoparticle Complex." International Journal of Molecular Sciences 22, no. 7 (2021): 3624. http://dx.doi.org/10.3390/ijms22073624.

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Molecular modeling of a supramolecular catalytic system is conducted resulting from the assembling between a small peptide and the surface of cationic self-assembled monolayers on gold nanoparticles, through a multiscale iterative approach including atomistic force field development, flexible docking with Brownian Dynamics and µs-long Molecular Dynamics simulations. Self-assembly is a prerequisite for the catalysis, since the catalytic peptides do not display any activity in the absence of the gold nanocluster. Atomistic simulations reveal details of the association dynamics as regulated by de
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Kudaibergenov, S., B. Selenova, G. A. Mun, N. Yesmurzayeva, and E. Nurgaziyeva. "Catalytic activity of poly(N-vinylpyrrolidone) protected gold nanoparticles deposited on ZnO." International Journal of Biology and Chemistry 7, no. 2 (2014): 65–68. http://dx.doi.org/10.26577/2218-7979-2014-7-2-65-68.

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Dissertations / Theses on the topic "Catalytic gold nanoparticles"

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Monti, Eleonora <1993&gt. "Supported gold nanoparticles for sustainable catalytic applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9758/4/Monti_Eleonora_tesi.pdf.

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The objectives of the present work are to investigate the influence of stabilizers in colloidal methods (sol-immobilization method) for the synthesis of preformed Au colloidal nanoparticles and the immobilization of the synthesized Au colloidal nanoparticles on supports, like activated carbon. By varying the nature of stabilizer (PVP, PEG, and PVA) and the weight ratio of stabilizer to metal, a number of Au based catalysts were prepared and the catalytic performance of the synthesized catalysts was tested for a range of model reactions. To determine the morphology of the unsupported and suppor
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Hathcock, David Jackson. "Dynamic and Catalytic Properties of Some Metallic Nanoparticles." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5134.

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Using a variety of techniques including femtosecond transient absorption spectroscopy, optical absorption, atomic force microscopy, the hot electron cooling dynamics of lithographically prepared gold nanoarrays, the effect of the surrounding environment, and the phonon oscillations of gold and silver nano-arrays were investigated. The cooling dynamics of gold nanoarrays on a glass substrate were found to be different from those of either colloidal nanodots in colloidal solution or films on glass substrate. The electron-phonon component of the electronic relaxation in the arrays was found to be
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Donoeva, Baira. "Study of catalytic and biological activity of gold-containing metal nanoparticles." Thesis, University of Canterbury. Chemistry, 2014. http://hdl.handle.net/10092/9761.

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Small particles of gold (< 100 nm) have attracted great interest among researchers due to the unique combination of their physicochemical properties. Among various research areas catalysis and bio-nanotechnology represent the largest areas of growth for gold nanoparticle research. Catalysts play a crucial role in the life of the modern society. More than 85 % of all chemical processes are catalytic, and this number is increasing every year. There is a constant demand to develop more efficient and durable catalysts in order to address increasing energy demands and environmental requirements. Th
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Kherde, Yogesh A. "Green Synthesis and Evaluation of Catalytic Activity of Sugar Capped Gold Nanoparticles." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1388.

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Owing to the importance of gold nanoparticles in catalysis, designing of them has become a major focus of the researchers. Most of the current methods available for the synthesis of gold nanoaprticles (GNPs) suffer from the challenges of polydispersity, stability and use of toxic and harmful chemicals. To overcome these limitations of conventional methods, in our present study, we made an attempt to design a method for the green synthesis of monodispersed and stable gold nanoparticles by sugars which act as reducing and stabilizing agent. Characterization of synthesized nanoparticles was done
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Kudaibergenov, S. E., E. K. Baigaziyeva, N. N. Yesmurzayeva, Zh A. Nurakhmetova, and B. S. Selenova. "Synthesis, Characterization and Catalytic Property of Polymer Protected Gold and Silver Nanoparticles." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35096.

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Gold (AuNPs) and silver (AgNPs) nanoparticles protected by hydrophilic polymers were prepared by “one-pot” synthetic protocol. Absorption spectra, size, morphology and structure of obtained nanoparticles were investigated by UV-Vis spectroscopy, dynamic light scattering (DLS), and transmission electron mi-croscopy (TEM). The catalytic activity of polymer-protected AuNPs and AgNPs supported on the surface of aluminum oxide was evaluated with respect to decomposition of hydrogen peroxide. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35096
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Kudaibergenov, S. E., G. S. Tatykhanova, and E. Baigaziyeva. "Preparation, Characterization and Catalytic Activity of Gold Nanoparticles Stabilized by Hydrophilic Polymers." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35034.

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Optical properties, structure, size and morphology of colloidal gold nanoparticles (AuNPs) stabilized by a series of hydrophilic polymers possessing nonionic, anionic, cationic and amphoteric nature were characterized by visible spectroscopy, dynamic light scattering (DLS), X-ray diffraction (XRD) and scanning electron microscopy (SEM), transmission electron microscopy (TEM). The polymer-protected AuNPs were prepared by “one-pot” synthetic protocol. The kinetics of formation of AuNPs was determined. The influence of the molecular weight (Mw) of polymers and concentration of AuNPs on the s
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Nurgaziyeva, E. K., G. S. Tatykhanova, G. A. Mun, V. V. Khutoryanskiy, and S. E. Kudaibergenov. "Catalytic Properties of Gel-Immobilized Gold Nanoparticles in Decomposition Of Hydrogen Peroxide." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42525.

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This paper reports the study of hydrogen peroxide decomposition catalyzed by polymer-protected gold nanoparticles (AuNPs) immobilized within polyacrylamide hydrogel. The stabilization of AuNPs was achieved using hydrophilic polymers. Embedding of AuNPs stabilized with various polymers into polyacrylamide hydrogels was carried out using three ways: “in situ” polymerization, sorption and boronhydride methods. Size, shape and morphology of AuNPs were characterized by various physicochemical methods.
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Ono, Luis. "IN-SITU GAS PHASE CATALYTIC PROPERTIES OF METAL NANOPARTICLES." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3277.

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Recent advances in surface science technology have opened new opportunities for atomic scale studies in the field of nanoparticle (NP) catalysis. The 2007 Nobel Prize of Chemistry awarded to Prof. G. Ertl, a pioneer in introducing surface science techniques to the field of heterogeneous catalysis, shows the importance of the field and revealed some of the fundamental processes of how chemical reactions take place at extended surfaces. However, after several decades of intense research, fundamental understanding on the factors that dominate the activity, selectivity, and stability (life-time) o
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Martelli, Francesca. "Supported metal nanoparticles for sustainable green catalytic processes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20699/.

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Preformed Au nanoparticles supported on activated carbon and TiO2 were synthesised by sol-immobilisation. Polyethylene glycol, polyvinyl pyrrolidone and polyvinyl alcohol were used as stabilisers for the gold nanoparticles at different polymer/Au wt/wt ratios for each polymer. The effect of polymer/Au wt/wt ratios was investigated on (i) the average nanoparticle size, (ii) catalytic activity for two reactions, 4-nitrophenol reduction and glucose oxidation to glucaric acid. 4-nitrophenol reduction is recognised as a model reaction for nanomaterial catalytic activity tests; glucose oxidation to
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Ngungeni, Yonela. "Antimicrobial, anticancer and catalytic activities of green synthesized Avocado seed extract-gold nanoparticles." University of the Western Cape, 2019. http://hdl.handle.net/11394/7809.

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>Magister Scientiae - MSc<br>Nature through billions of years of trial and error has produced an immeasurable amount of natural systems like plants, birds and animals. The intelligence of nature is hidden in these natural systems and researchers are turning towards “Nature’s intelligence” to find inspiration and advance novelty in the development of nanomaterials. Gold nanoparticles (AuNPs) have unique optical, electronic and physicochemical features which has gained them popularity and widespread exploitation in various applications. The conventional methods used for AuNPs synthesis emp
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Books on the topic "Catalytic gold nanoparticles"

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Metal Oxidesupported Gold Nanoparticles Sizedependence Of Catalytic Activities. LAP Lambert Academic Publishing, 2012.

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Book chapters on the topic "Catalytic gold nanoparticles"

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Hussain, Najrul, Gitashree Darabdhara, and Manash R. Das. "Gold Nanoparticles-Graphene Composites Material: Synthesis, Characterization and Catalytic Application." In Advanced Catalytic Materials. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118998939.ch4.

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Kapil, Nidhi. "Tailoring Gold Nanoparticles with Tunable Core Size and Their Catalytic Applications." In Stable Supported Gold Nanoparticle Catalyst for Environmentally Responsible Propylene Epoxidation. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15066-1_5.

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Al-Hatti, A., I. Shaikha, M. Al-Shamisi, T. Abdulrehman, and Y. Haik. "Catalytic Characterization of Size Based Gold Nanoparticles for Applications in Fuel Cells." In ICREGA’14 - Renewable Energy: Generation and Applications. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05708-8_9.

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Liu, Aijie, Mark V. de Ruiter, Stan J. Maassen, and Jeroen J. L. M. Cornelissen. "Nanoreactors via Encapsulation of Catalytic Gold Nanoparticles within Cowpea Chlorotic Mottle Virus Protein Cages." In Methods in Molecular Biology. Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-7893-9_1.

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Yadav, Divyansh, and Seema Nara. "Nanozymes for Neurodegenerative Diseases." In Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022). Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-020-6_9.

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AbstractNeurodegenerative diseases are incurable diseases that get worse as time passes. These diseases are very heterogeneous in nature but have common characteristics like abnormal deposition of protein, glycation, inflammation in particular areas of the brain, and progressive neuronal loss due to oxidative stress. Among these, oxidative stress alone causes a high level of degeneration of neurons. To reduce oxidative stress, natural antioxidants are used but they have some drawbacks like instability, high cost and low reusability. To overcome this, nanozymes are introduced and we have emphas
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Kraus, Katharina, Tamara Mielke, Tatjana Friedrich, and Bernd Tieke. "In-situ Generation of Gold, Platinum and Palladium Nanoparticles in N-isopropylacrylamide-surfmer Copolymer Hydrogels and Catalytic Activity of the Gels." In Intelligent Hydrogels. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01683-2_9.

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Ishida, Tamao, Ayako Taketoshi, and Masatake Haruta. "Gold Nanoparticles for Oxidation Reactions: Critical Role of Supports and Au Particle Size." In Nanoparticles in Catalysis. Springer International Publishing, 2020. http://dx.doi.org/10.1007/3418_2020_42.

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Ishida, Tamao, and Masatake Haruta. "Supported Gold Nanoparticles Leading to Green Chemistry." In Nanotechnology in Catalysis. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527699827.ch2.

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Destro, Priscila. "Synthesis of Gold-Copper Nanoparticles by Colloidal Method Varying the Compositions as a Function of the Synthesis Final Temperature." In Colloidal Nanoparticles for Heterogeneous Catalysis. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03550-1_2.

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Kumar, R., A. Ghosh, C. R. Patra, P. Mukherjee, and M. Sastry. "Gold Nanoparticles Formed within Ordered Mesoporous Silica and on Amorphous Silica." In Nanotechnology in Catalysis. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-9048-8_6.

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Conference papers on the topic "Catalytic gold nanoparticles"

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Wu, Chung-Shu, Chia-Tien Wu, Chieh Chen, et al. "Catalytic behaviors in modulating enzymatic activity through different-sized gold nanoparticles." In 2010 IEEE 3rd International Nanoelectronics Conference (INEC). IEEE, 2010. http://dx.doi.org/10.1109/inec.2010.5424727.

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Punnoose, Mamatha Susan, D. Bijimol, Thomas Abraham, Neena John Plathanam, and Beena Mathew. "Synthesis, characterization and catalytic activity of gold nanoparticles synthesized using a green route." In INTERNATIONAL CONFERENCE ON MULTIFUNCTIONAL MATERIALS (ICMM-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0019543.

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DŮBRAVOVÁ, Alžběta, Monika MUCHOVÁ, Lenka LOVECKÁ, Ivo KUŘITKA, Jan VÍCHA, and Lukáš MÜNSTER. "Preparation of gold nanoparticles using polysaccharide dialdehydes and study of their catalytic activity." In NANOCON 2023. TANGER Ltd., 2023. http://dx.doi.org/10.37904/nanocon.2023.4777.

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Klivenko, A., A. Yergaziyeva, and S. Kudaibergenov. "Gold nanoparticles stabilized by amphoteric cryogel-perspective flow-through catalytic reactor for oxidation and reduction processes." In 2016 International Conference on Nanomaterials: Application & Properties (NAP). IEEE, 2016. http://dx.doi.org/10.1109/nap.2016.7757304.

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Huang, Xiaohua, Ivan H. El-Sayed, and Mostafa A. El-Sayed. "The use of surface enhanced absorption, scattering and catalytic properties of gold nanoparticles in some bio- and biomedical applications." In Optics & Photonics 2005, edited by Clemens Burda and Randy J. Ellingson. SPIE, 2005. http://dx.doi.org/10.1117/12.625431.

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Parimala, L., L. Ramapriya, and J. Santhanalakshmi. "Aloe leaf extract and microwave assisted green synthesis of gold nanoparticles and its catalytic activity on reductive degradation of methyl red." In THE 8TH ANNUAL INTERNATIONAL SEMINAR ON TRENDS IN SCIENCE AND SCIENCE EDUCATION (AISTSSE) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0108582.

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Liu, Xiaolu, Yang Liu, Kai Ren, et al. "Clean Energy Generation by a Nanostructured Biophotofuel Cell." In ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 7th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fuelcell2013-18261.

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In this paper, clean energy generation from hazardous materials by a nanostructured biophotofuel cell was studied. Specifically, electrodeposition of polyaniline on TiO2 nanotube as photoelectrochemical anode for a sodium sulfide fuel cell was performed. The photoelectrochemical response of the TiO2 nanotube capped by polyaniline nanoparticles was studied in UV and visible light illumination using sodium sulfide as the electrolyte. The polyaniline was added onto the top end of the nanotube via electrochemical deposition from 0.1 M aniline (C6H7N) in 1 M HCl solution. Polyaniline nanoparticle/T
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Dahle, Sebastian, Lienhard Wegewitz, Fei Qi, Alfred P. Weber, and Wolfgang Maus-Friedrichs. "Silicon dioxide coating of titanium dioxide nano particles from dielectric barrier discharge in a gaseous mixture of silan and nitrogen." In 13th International Conference on Plasma Surface Engineering September 10 - 14, 2012, in Garmisch-Partenkirchen, Germany. Linköping University Electronic Press, 2013. http://dx.doi.org/10.3384/wcc2.116-117.

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Titanium dioxide nanoparticles are used commonly in various applications due to their high catalytic activity. Many of these applications require subsequent treatments after the deposition of the TiO2 particles. Some of these include thermal processing at high temperatures, e.g. roof tiles. For all of these applications, the crystal structures as well as the microscopic properties are essential. Thus, sintering severely affects the catalytic activity in most of the cases. During thermal processing, the nanoparticles transform from the catalytical highly active anatas structure to the substanti
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Takeyasu, Nobuyuki, Kenzo Yamaguchi, Ryusuke Kagawa, et al. "Blocking Hot Electron Emission by SiO2 Coating Plasmonic Nanostructures." In JSAP-OSA Joint Symposia. Optica Publishing Group, 2017. http://dx.doi.org/10.1364/jsap.2017.5a_a410_5.

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The transformation of para-aminothiophenol (PATP) to dimercaptoazobenzene (DMAB) is widely believed to be due to the emission of hot electrons from the plasmonic nanostructures,1 which are generated during the decay of the surface plasmons (LSPPs). Our aim here is to separate the catalytic activity of plasmonic nanostructures from their SERS activity by using a 5 nm thick silicon dioxide (SiO2) layer. This layer blocks hot electrons from reaching the PATP molecules but lets the electromagnetic field penetrate, allowing us to measure the SERS of the monomer without triggering a chemical reactio
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García-Duarte, H. A., M. C. Ruiz-Cañas, and R. A. Perez-Romero. "Combining Nanocatalyts with Solvent as a Strategy to Improve Steam-Based Hybrid Technology: Phase Behaviour Modelling and Thermal Simulation Approach." In SPE Improved Oil Recovery Conference. SPE, 2024. http://dx.doi.org/10.2118/218136-ms.

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Abstract As a strategy to optimize the recovery and energy efficiency in cyclic steam stimulation (CSS) processes, the alternative of combining steam - nanosolvents has been under study in Colombian heavy oil reservoirs. The use of oil-based nanocatalysts (nanosolvents) in combination with steam allows extending the effectiveness of the catalyst, transporting it better within the reservoir due to the solubility of naphtha in the crude oil. The interaction phenomena associate with this hybrid technology must be evaluated under a robust phase behavior study which represent oil - solvent interact
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Reports on the topic "Catalytic gold nanoparticles"

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Wongpakdeea, Thinnapong, Karin Crenshaw, Hery Figueroa Wong, Duangjai Nacapricha, and Bruce McCord. Advancements in Analytical Techniques for Rapid Identification of Gunshot Residue and Low Explosives through Electrochemical Detection and Surface-Enhanced Raman Spectroscopy. Florida International University, 2024. https://doi.org/10.25148/gfjcsr.2024.7.

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This research focuses on developing two analytical methods for forensic investigations using electrochemical detection and surface-enhanced Raman spectroscopy. For electrochemical analysis, screen-printed carbon electrodes are used to detect metals and nitrate/nitrite compounds commonly found in gunshot residue. Gold electrodeposition and copper modification enhance sensitivity and catalytic activity, respectively. Additionally, a screen-printed gold electrode modified with gold nanoparticles enables surface-enhanced Raman spectroscopy, requiring only a single drop of sample solution. Testing
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Harrison, Ian. Investigation of the Origin of Catalytic Activity in Oxide-Supported Nanoparticle Gold. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1358579.

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