专利号:US-10450201-B2 优先权日:2017-10-04 标题 :Method for the synthesis of nanoparticles of heterometallic nanocomposite materials 发明人:SOHAIL MANZAR; SHARIF MUHAMMAD; KHAN SAFYAN A; SHER MUHAMMAD; JAGADEESH RAJENAHALLY V 权利人:UNIV KING FAHD PET & MINERALS 摘要:A simple one pot sol-gel method for the synthesis of bi-metal nanostructures is based on non-noble metals (Fe, Co and Sn) and titanium. The method involves the synthesis of mixed metal nanoscale composites using low cost precursors which allow for the synthesis of desired nanocomposite materials with self-scarifying titanium or silica supports. The procedure does not require any surfactant or any need for pH controlled step. Applicants' method involves the in-situ generation of precursors and their simultaneous entrapment in a gel. This simple one pot synthesis allows for the synthesis of homogenous size, shape and distribution of targeted nanostructures. Further, this method can be applied for the preparation of various nanocomposite materials using different choices of metals and self-scarifying supports. Applicants also show that Pd, the noble metal based nanocomposite is feasible.
专利号:US-8598046-B2 优先权日:2008-12-30 标 题 :Autosynthesizer for the controlled synthesis of nano- and sub-nanostructures 发明人:PACHAURI VIVEK; AHMAD ASHRAF; BALASUBRAMANIAN KANNAN; KERN KLAUS 权利人:PACHAURI VIVEK; AHMAD ASHRAF; BALASUBRAMANIAN KANNAN; KERN KLAUS; MAX PLANCK GESELLSCHAFT 摘要:The present invention relates to a method and apparatus for the synthesis of nanostructures using at least one solution providing at least one chemical element appropriate for the type of nanostructure, the method comprising the steps of: a) adding (admixing) a reducing agent to the at least one solution, b) bringing a suitable substrate into contact with the at least one solution before or after step a), c) forming nucleation growth sites on the substrate and d) maintaining the temperature at a suitable level for the growth of the nanostructures, characterized by the further steps of e) providing at least one space having at least one dimension in the micron range, e.g. in the range from 1 μm to 500 μm, adjacent a surface of the substrate, f) growing said nanostructures in said at least one space, g) periodically separating said nanostructures from the substrate and removing them.
专利号:WO-2024243127-A1 优先权日:2023-05-19 标题:Transformative synthesis of semiconductor nanoclusters with atomic precision via metal-ligand coordination exchange 发明人:ZENG CHENJIE; MA FUYAN 权利人:UNIV FLORIDA 摘要:Precision nanosynthesis is crucial for atomic engineering in nanostructures and mechanistic understanding of nanoscale reactions. But it is a daunting task due to emerging complexities in nanostructures and nanosynthesis. Here, we report the precision synthesis of semiconductor nanocluster via synergizing coordination, cluster, and colloidal chemistry at the nanoscale. In particular, by employing Cu26Se13(PEt2Ph)14 cluster and Cdl2(PPr3)2 coordination complex as precise precursors in colloidal cation exchange reaction, an atomically precise Cd26Se17I18(PPr3)10 cluster is produced at near- unity yield. X-ray crystallography reveals that the child CdSe cluster inherits its icosahedral-packed anion lattice and halide-phosphine-rich surface from parent cluster and complex respectively and further evolves into an enlarged structure. The hybridization of achiral precursors leads to chiral CdSe clusters co-crystallized as a 1:1 mixture of enantiomers. In-situ optical spectroscopy unveils that the reaction proceeds with well-defined pathways. Based on charge and coordination conservations, the structure of child cluster can be atomically linked to precursors via a series of transformations including surface coordination exchange, intra-cluster reorganization, and inter-cluster digestive ripening. The precision nanosynthesis with atomically defined precursors, pathways, and products is expected to further rationalize and diversify nanochemistry.
专利号:US-6603070-B2 优先权日:2000-07-21 标题 :Convergent synthesis of multiporphyrin light-harvesting rods 发明人:LINDSEY JONATHAN S; LOEWE ROBERT S 权利人:UNIV NORTH CAROLINA STATE 摘要:The present invention provides a convergent method for the synthesis of light harvesting rods. The rods are oligomers of the formula A 1 (A b+1 ) b , wherein b is at least 1, A 1 through A b+1 are covalently coupled rod segments, and each rod segment A 1 through A 1+b comprises a compound of the formula X 1 (X m+1 ) m wherein m is at least 1 and X 1 through X m+1 are covalently coupled porphyrinic macrocycles. Light harvesting arrays and solar cells containing such light harvesting rods are also described, along with intermediates useful in such methods and rods produced by such methods.
专利号:US-7998271-B2 优先权日:2003-11-19 标题 :Solvents and new method for the synthesis of CdSe semiconductor nanocrystals 发明人:ALKHAWALDEH AMMAR S; PASQUALI MATTEO; WONG MICHAEL S 权利人:William Marsh Rice Universtiy 摘要:New methods for the synthesis of nanocrystals/quantum dots are disclosed. The methods comprise use of reasonably-priced and commercially available heat transfer fluids (such as Dowtherm® A) as solvents to synthesize CdSe nanocrystals. Separation of nucleation and growth is achieved by quenching the reaction solution with relatively cold (room temperature) solvent to lower the solution temperature. Quenching may be followed by raising the solution temperature, to allow controlled growth to take place.
专利号:US-8088740-B2 优先权日:2009-05-04 标题:Gold binding peptides and shape-and size-tunable synthesis of gold nanostructures 发明人:HUR HOR GIL; KIM JUNG OK; KIM DAE HEE; MYUNG NO SANG 权利人:HUR HOR GIL; KIM JUNG OK; KIM DAE HEE; MYUNG NO SANG; KWANGJU INST SCI & TECH 摘要:The present invention relates to gold binding peptides and shape- and size-tunable synthesis of gold nanostructures. The present inventions are very useful for the production of well-designed, gold-based architectures. The size- and shape-specific gold nanostructure materials prepared by the present invention may find use as: highly conductive interconnections for single-electron transistors, catalysts for the oxidation of carbon monoxide; biological and chemical sensors; and as contrasting agents for electron microscopic and medical imaging applications.
参考标题:Synthesis And Spectral Studies On Cd(II) Dithiocarbamate Complexes And Their Use As Precursors For Cds Nanoparticles 作者:Ethiraj Sathiyaraj,Krishnaraj Padmavathy,Chandran Udhaya Kumar,Kannan Gokula Krishnan,Chennan Ramalingan |发布日期:2017.11 摘要:Experimental Results. The Complexes 1 And 2 Have Been Used As Single Source Precursors For The Synthesis Of Ethyleneglycol Capped Cds 1 And Cds 2 Nanoparticles, Respectively. Cds 1 And Cds 2 Nanoparticles Have Been Synthesized By Solvothermal Method. Pxrd, Sem, Elemental Colour Mapping, Edax, Tem And Uv-Vis Spectroscopy Have Been Used To Characterize The As-Prepared Cds Nanoparticles. The X-Ray Diffraction
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摘要:Bellanger, C.; Chelli, S.; Lakhdar, S., Science of Synthesis, (2021) , 253. 摘要:American Conference of Governmental Industrial Hygienists; 2011 Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices . Cincinnati, OH 2011, p. 16 摘要:USEPA/Office of Water; Federal-State Toxicology and Risk Analysis Committee (FSTRAC). Summary of State and Federal Drinking Water Standards and Guidelines (11/93) To Present 摘要: 摘要:U.S. Department of Transportation. 2008 Emergency Response Guidebook. Washington, D.C. 2008254-5