Academic literature on the topic 'Single atom silver catalyst'

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Journal articles on the topic "Single atom silver catalyst"

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Pagliaro, Mario, Cristina Della Pina, Francesco Mauriello, and Rosaria Ciriminna. "Catalysis with Silver: From Complexes and Nanoparticles to MORALs and Single-Atom Catalysts." Catalysts 10, no. 11 (2020): 1343. http://dx.doi.org/10.3390/catal10111343.

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Silver catalysis has a rich and versatile chemistry now expanding from processes mediated by silver complexes and silver nanoparticles to transformations catalyzed by silver metal organic alloys and single-atom catalysts. Focusing on selected recent advances, we identify the key advantages offered by these highly selective heterogeneous catalysts. We conclude by offering seven research and educational guidelines aimed at further progressing the field of new generation silver-based catalytic materials.
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Ding, Xun-Lei, Dan Wang, Rui-Jie Li, Heng-Lu Liao, Yan Zhang, and Hua-Yong Zhang. "Adsorption of a single gold or silver atom on vanadium oxide clusters." Physical Chemistry Chemical Physics 18, no. 14 (2016): 9497–503. http://dx.doi.org/10.1039/c6cp00808a.

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Karim, Nabila A., Nor Shahirah Shamsul, and Siti Kartom Kamarudin. "Catalytic Activity of Silver Metal Supported on Doped Graphene in Alkaline Medium for Oxygen Reduction Reaction." Advanced Materials Research 1155 (August 2019): 55–69. http://dx.doi.org/10.4028/www.scientific.net/amr.1155.55.

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The platinum (Pt) degradation, poisoning and carbon corrosion in acidic fuel cell has led to explore the research in alkaline fuel cell. However, the high cost of Pt has brought a lot of studies to find replacement for Pt catalyst. Due to that, silver metal is selected as non-Pt catalyst and supported by the nitrogen and phosphorus-doped on graphene for oxygen reduction reaction in alkaline medium. The adsorption energy and mechanism of the oxygen reduction reaction is studied by using density functional theory (DFT) calculation. The support catalyst of graphene is doped with three atom nitrog
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Jiang, Xun‐Heng, Long‐Shuai Zhang, Hai‐Yan Liu, et al. "Silver Single Atom in Carbon Nitride Catalyst for Highly Efficient Photocatalytic Hydrogen Evolution." Angewandte Chemie 132, no. 51 (2020): 23312–16. http://dx.doi.org/10.1002/ange.202011495.

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Jiang, Xun‐Heng, Long‐Shuai Zhang, Hai‐Yan Liu, et al. "Silver Single Atom in Carbon Nitride Catalyst for Highly Efficient Photocatalytic Hydrogen Evolution." Angewandte Chemie International Edition 59, no. 51 (2020): 23112–16. http://dx.doi.org/10.1002/anie.202011495.

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Hulva, Jan, Matthias Meier, Roland Bliem, et al. "Unraveling CO adsorption on model single-atom catalysts." Science 371, no. 6527 (2021): 375–79. http://dx.doi.org/10.1126/science.abe5757.

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Understanding how the local environment of a “single-atom” catalyst affects stability and reactivity remains a challenge. We present an in-depth study of copper1, silver1, gold1, nickel1, palladium1, platinum1, rhodium1, and iridium1 species on Fe3O4(001), a model support in which all metals occupy the same twofold-coordinated adsorption site upon deposition at room temperature. Surface science techniques revealed that CO adsorption strength at single metal sites differs from the respective metal surfaces and supported clusters. Charge transfer into the support modifies the d-states of the met
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Ding, Jie, Xuefang Liu, Mengge Shi, et al. "Single-atom silver–manganese catalysts for photocatalytic CO2 reduction with H2O to CH4." Solar Energy Materials and Solar Cells 195 (June 2019): 34–42. http://dx.doi.org/10.1016/j.solmat.2019.02.009.

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Xia, Mingyu, Jie Ding, Xiaowei Du, Ruilin Shang, and Qin Zhong. "Ambient hydrogenation of CO2 to methane with highly efficient and stable single-atom silver-manganese catalysts." Journal of Alloys and Compounds 777 (March 2019): 406–14. http://dx.doi.org/10.1016/j.jallcom.2018.10.352.

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Bowmaker, Graham A., Narongsak Chaichit, Chaveng Pakawatchai, Brian W. Skelton, and Allan H. White. "Structural and spectroscopic studies of some adducts of silver(I) salts with ethylenethiourea." Canadian Journal of Chemistry 87, no. 1 (2009): 161–70. http://dx.doi.org/10.1139/v08-112.

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Syntheses, single crystal X-ray structural and spectroscopic characterizations are described for a variety of adducts of silver salts with ethylenethiourea (etu). Ag2SO4/etu (1:6) is isomorphous with its previously studied copper(I) counterpart, the [Ag(S-etu)3]+ species disposed with their silver atoms on crystallographic 3-axes, one of the two independent cations being slightly perturbed by a distant O-sulfate approach along that axis. In AgCl/etu (1:3), the silver atom is in a four-coordinate ClAgS3 environment, while AgNO3/etu (1:3) takes the form [(etu)2Ag(µ-S-etu)2Ag(etu)2](NO3)2. AgBr/e
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Chen, Shuai, Zhe‐Ning Chen, Wei‐Hui Fang, Wei Zhuang, Lei Zhang, and Jian Zhang. "Ag 10 Ti 28 ‐Oxo Cluster Containing Single‐Atom Silver Sites: Atomic Structure and Synergistic Electronic Properties." Angewandte Chemie International Edition 58, no. 32 (2019): 10932–35. http://dx.doi.org/10.1002/anie.201904680.

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Dissertations / Theses on the topic "Single atom silver catalyst"

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Yu, Bin. "Development of silver nanocatalyst for propylene selective oxidation reaction." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:0f3f0556-bff1-4af1-bfe0-0e62b0425bff.

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Propylene is the second most important starting chemical in the petrochemical industry after ethylene. Unlike ethylene, propylene readily undergoes substitution reactions including polymerisation, oxidation, halogenation, hydrohalogenation, alkylation, hydration, oligomerization and hydroformylation, which lead to a wide variety of important downstream products. One of the principal uses of propylene is to produce key chemicals from selective oxidation. In 2016, the world annual production of propylene is about 94 million tonnes, and the global proportion used to produce selective oxidation pr
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Hjelm, Vivien. "Optimizing a Single Atom Catalyst for theOxygen Evolution Reaction using DensityFunctional Theory." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259703.

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The growing interest of renewable fuel and energy sources has steadily increased over time due to climate changes. Research is being made around the world to find solutions for the different problems; one possible solution is to produce hydrogen gas to help phase out the usage of fossil fuels. So far, the technology for the hydrogen gas production is expensive for various reasons, one of the challenges is to minimize the energy usage for the production. Hydrogen could be used in fuel cells which can be used to fuel an electric car. In a fuel cell, hydrogen and oxygen gas are mixed to produce e
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Hung, Hsin Ting, and 洪薪婷. "Using Surface Complexation Modeling on Preparation of Single-Atom Catalyst on Hematite Photoelectrodes." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/72062468942159281449.

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碩士<br>國立清華大學<br>生醫工程與環境科學系<br>103<br>Surface complexation modeling (SCM) has been wildly applied in the field of environmental science to simulate and explain the interaction between particulate surfaces and pollutant ions via a stoichiometric reaction based on the thermodynamics. We report herein the application of SCM to manipulate the dispersion of cocatalysts on the surface of hematite. In the preliminary trial in a backer system, observations from TEM images confirm that the pH and loaded Co2+ concentrations lead to either homogeneous distribution or coarse clusters of cobalt cocatalysts
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Alarawi, Abeer A. "Molybdenum Disulfide as an Efficient Catalyst for Hydrogen Evolution Reaction." Diss., 2018. http://hdl.handle.net/10754/630133.

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Hydrogen is a carrier energy gas that can be utilized as a clean energy source instead of oil and natural gas. Splitting the water into hydrogen and oxygen is one of the most favorable methods to generate hydrogen. The catalytic properties of molybdenum disulfide (MoS2) could be valuable in this role, particularly due to its unique structure and ability to be chemically modified, enabling its catalytic activity to be further enhanced or made comparable to that of Pt-based materials. In general, these modification strategies may involve either structural engineering of MoS2 or enhancing the kin
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(11150073), Abhijit D. Talpade. "Pyrolysis based processing of biomass and shale gas resources to fuels and chemicals." Thesis, 2021.

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<div>Thermochemical processing using fast-pyrolysis technology has been used to upgrade feedstocks like biomass and natural gas and more recently studied for plastic recycling. This work aims to improve the selectivity to desired products from a pyrolysis process through better catalysts and reactor design.</div><div>Fast-pyrolysis of biomass to fuels is considered a promising technology due to the higher yields to liquid fuel products. However, the process suffers from low carbon efficiency to hydrocarbon products due to carbon losses to biochar, accounting for 25-40 wt.% of the product strea
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Book chapters on the topic "Single atom silver catalyst"

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Dong, L., S. Wang, W. Wang, et al. "Transition Metals Trigger On-Surface Ullmann Coupling Reaction: Intermediate, Catalyst and Template." In Advances in Atom and Single Molecule Machines. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26600-8_2.

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Blamo, B. J., and Z. J. Wang. "From nanoparticle to single-atom catalyst; electrocatalytic reduction of carbon dioxide." In Nanomaterials for CO2 Capture, Storage, Conversion and Utilization. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-822894-4.00016-2.

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Singh, Baljeet, Surender Kumar, and Archana Singh. "Cobalt Single Atom Heterogeneous Catalyst: Method of Preparation, Characterization, Catalysis, and Mechanism." In Cobalt Compounds and Applications. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.85773.

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Awais Rouf, Syed, Zahid Usman, Hafiz Tariq Masood, Abdul Mannan Majeed, Mudassira Sarwar, and Waseem Abbas. "Synthesis and Purification of Carbon Nanotubes." In Carbon Nanotubes - Redefining the World of Electronics [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98221.

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In this chapter, we will evaluate the synthesis and purification of carbon nanotubes. Carbon nanotubes are cylindrical molecules that consists of graphene (rolled up of a single-layer carbon atom). A wide variety of synthesis techniques such as arc discharge synthesis, laser ablation of graphite/laser vaporization synthesis method, chemical vapor deposition (CVD), high pressure carbon monoxide synthesis and flame synthesis techniques, have been implemented to grow single and multi-walled carbon nanotubes for technological applications. All of the above methods exploit transition metals, like iron, cobalt, and nickel, as a catalyst. There are number of methods (filtering, chromatography and centrifugation) used to purify the carbon nanotubes, but the degree of purity remained questionable in these methods. In order to enhance the purification extent, alternate techniques such as Gas phase purification, Liquid phase purification and Purification by Intercalation are introduced. Here we will discuss the advantages and disadvantages of these purification routes. It will help researchers in selecting appropriate and effective method for synthesis and purification of carbon nanotubes.
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Taber, Douglass F. "Arrays of Stereogenic Centers: The Barker Synthesis of (+)-Galbelgin." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0043.

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Gang Zhao of the Shanghai Institute of Organic Chemistry and Gang Zou of the East China University of Science and Technology devised (Adv. Synth. Catal. 2011, 353, 3129) an elegant catalyst for the direct enantioselective epoxidation of a simple acyclic enone 1. Ismail Ibrahem and Armando Córdova of Mid Sweden University and Stockholm University prepared (Adv. Synth. Catal. 2011, 353, 3114) 6 by combining three catalysts to effect the enantioselective addition of 5 to 4. Giovanni Casiraghi and Franca Zanardi of the Università degli Studi di Parma used (J. Org. Chem. 2011, 76, 10291) a silver catalyst to mediate the addition of 8 to 7 to give 9. Keiji Maruoka of Kyoto University condensed (Nature Chem. 2011, 3, 642) the diazo ester 10 with an aldehyde 4, leading, after reduction of the initial adduct and protection, to the diamine 11. Christoph Schneider of the Universität Leipzig effected (Synthesis 2011, 4050) the vinylogous addition of 13 to an imine 12, setting both stereogenic centers of 14. In the course of the coupling of 16 with the diol 15, Michael J. Krische of the University of Texas established (J. Am. Chem. Soc. 2011, 133, 12795) four new stereogenic centers. By adding (Chem. Commun. 2011, 47, 10557) an α-nitro ester 18 to the maleimide 19, Professor Maruoka established both the alkylated secondary center and the N-substituted quaternary center of 20. Srinivas Hotha of the Indian Institute of Science Education &amp; Research and Torsten Linker of the University of Potsdam showed (Chem. Commun. 2011, 47, 10434) that the readily prepared lactone 21 could be opened to 23 without disturbing the stereogenic center adjacent to the carbonyls. Allan D. Headley and Bukuo Ni of Texas A&amp;M University-Commerce devised (Synthesis 2011, 1993) a recyclable catalyst for the addition of an aldehyde 7 to a nitroalkene 24 in water to give 25. Alexandre Alexakis of the University of Geneva effected (Chem. Commun. 2011, 47, 7212) the triply convergent coupling of 26, 27, and 28 to give 29 as a single dominant diastereomer.
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Taber, Douglass. "Stereocontrolled Construction of C-N Rings: The Vanderwal Synthesis of Norfluorocurarine." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0056.

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Forrest E. Michael of the University of Washington described (Organic Lett. 2009, 11, 1147) the Pd-catalyzed aminative cyclization of 1 to the differentially-protected diamine 3. Peter Somfai of KTH Chemical Science and Engineering observed (Organic Lett. 2009, 11, 919) that [1,2]-rearrangement of 4 proceeded to deliver 5 with near-perfect maintenance of enantiomeric excess. Tushar Kanti Chakraborty of the Central Drug Research Institute, Lucknow applied (Tetrahedron Lett. 2009, 50, 3306) the Ti(III) reduction of epoxides to the Sharpless-derived ether 6, leading to the pyrrolidine 7. Chun-Jiang Wang of Wuhan University devised (Chem. Commun. 2009, 2905) a silver catalyst that directed the absolute sense of the dipolar addition of 9 to 8 to give 10. Homoallyic azides such as 11 are readily prepared in high enantiomeric excess from the corresponding alcohol. Bernhard Breit of Albert-Ludwigs-Universität, Freiburg and André Mann of the Faculté de Pharmacie, Illkirch showed (Organic Lett. 2009, 11, 261) that Rh-mediated hydroformylation could be effected in the presence of the azide. Subsequent reduction delivered the piperidine 12. Jan-E. Bäckvall of Stockholm University applied (J. Org. Chem. 2009, 74, 1988) the protocol for dynamic kinetic asymmetric transformation (DYKAT) that he had developed to the cyanodiol 13. Remarkably, a single enantiomerically- pure diasteromer emerged, which he carried on to 14. Xiaodong Shi of West Virginia University found (Organic Lett. 2009, 11, 2333) that the stereogenic center of 17, even though it ended up outside the ring, directed the absolute configuration of the other centers of 18 as they formed. Jan Vesely of Charles University and Albert Moyano and Ramon Rios of the Universitat de Barcelona established (Tetrahedron Lett. 2009, 50, 1943) that an organocatayst directed the absolute configuration in the addition of 19 to 20 to give 21. Osamu Tamura of Showa Pharmaceutical University effected (Organic Lett. 2009, 11, 1179) cyclization of the malic acid-derived amide 22 to give 23 with high diastereocontrol.
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Benkoski, Léa, and Tristan H. Lambert. "Construction of Multiple Stereocenters." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0039.

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Erick M. Carreira at ETH Zürich reported (Science 2013, 340, 1065) the enantiose­lective α-allylation of aldehyde 1 with alcohol 2 to produce 3 using a dual catalytic system involving a chiral iridium complex and amine 5. This stereodivergent method allows access to all of the possible stereoisomers of 3. In a conceptually related proc­ess, John F. Hartwig at the University of California, Berkeley reported (J. Am. Chem. Soc. 2013, 135, 2068) the highly stereoselective allylic alkylation of azlactone 6 with allylic carbonate 7 catalyzed by a combination of Ir(cod)Cl₂, ligand 9, and racemic silver phosphate 10. An enantioselective three-component Mannich-type reaction of tert-butyl diazo­acetate, aniline, and imine 11 to produce α,β-bis(arylamino) acid derivative 13 under dual catalysis with Rh₂(OAc)₄ and acid 12 was developed (Synthesis 2013, 45, 452) by Wenhao Hu at the Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development. Keiji Maruoka at Kyoto University reported (Chem. Commun. 2013, 49, 1118) a one-pot cross double-Mannich reaction of acetylalde­hyde 14, and imines 16 and 17 using axially chiral amino sulfonamide 15 to obtain densely functionalized 1,3-diamine 18 as a single stereoisomer. Jeffrey S. Johnson at the University of North Carolina at Chapel Hill reported (Org. Lett. 2013, 15, 2446) the asymmetric synthesis of enantioenriched anti-α-hydroxy-β-amino acid derivative 21 from 19 by treatment with oxone followed by catalytic hydrogenation using Ru(II) complex 20. Naoya Kumagai and Masakatsu Shibasaki at the Institute of Microbial Chemistry found (Org. Lett. 2013, 15, 2632) that a sil­ver complex of bisphosphine 24 effected a syn-selective and highly enantioselective Mannich-type reaction of aldimine 22 and α-sulfanyl lactone 23 to furnish the stereo­diad 25 with very high ee. The enantioselective homocrotylation of octanal 26 with cyclopropylcarbinylbo­ronate 27 to produce alcohol 28 with high ee was disclosed (J. Am. Chem. Soc. 2013, 135, 82) by Isaac J. Krauss at Brandeis University with computational studies pro­vided by Kendall N. Houk at UCLA. Benjamin List at the Max-Planck-Institut für Kohlenforschung reported (J. Am. Chem. Soc. 2013, 135, 6677) the enantioselective epoxidation of cyclohexenone 29 utilizing cinchona alkaloid- derived catalyst 30.
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Conference papers on the topic "Single atom silver catalyst"

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Sarrouf, Rodolphe, Virginie Souza, Thomas Badr, Guibao Xu, and Jean-Jacques Zondy. "Watt-Level Single-Frequency Tunable Nd:YLF/PPKTP Red Laser for Silver Atom Cooling." In CLEO 2007. IEEE, 2007. http://dx.doi.org/10.1109/cleo.2007.4452948.

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Zondy, Jean-Jacques, Rodolphe Sarrouf, Thomas Badr, et al. "All-solid State, Single-frequency Tunable Nd:YLiF[sub 4]∕ppKTP Red Laser Source for Silver and Calcium Atom Spectroscopy." In RIAO∕OPTILAS 2007: 6th Ibero-American Conference on Optics (RIAO); 9th Latin-American Meeting on Optics, Lasers and Applications (OPTILAS). AIP, 2008. http://dx.doi.org/10.1063/1.2926898.

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Wu, Quanwen, Wenhua Luo, Daqiao Meng, Jinchun Bao, and Jingwen Ba. "High Efficient Detritiation Catalysts for Fusion Safety." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81269.

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Tritium is indispensable to the fusion reactor engineering, and it must be seriously defended because of its radioactivity and permeability. The method of catalytic oxidation and absorption is the most widely used process for tritium cleanup so far, in which detritiation catalyst is of great importance. The poor stability caused by the agglomeration of noble metal limits the life of detritiation catalysts. Here, Anti–Ostwald Ripening is used to prepare single-atom detritiation catalysts S-Pt/Ce0.7Zr0.3O2 for tritium (HT, DT and T2) oxidation. Single-atom dispersed Pt ensures the catalytic acti
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