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Topic: Synthesis of noble metals

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	Synthesis of noble metals - Wikipedia, the free encyclopedia
		Synthesis of noble metals refers to the realization of the age-old dream of alchemists—to artificially produce noble metals.
		Synthesis of noble metals is only possible with methods of nuclear physics, either using nuclear reactors or by particle accelerators.
		Rhodium and ruthenium are noble metals produced by nuclear fission, as a small percentage of the fission products.
	en.wikipedia.org /wiki/Gold_synthesis (676 words)

	Noble metal - Wikipedia, the free encyclopedia
		Noble metals are metals that are resistant to corrosion or oxidation, unlike most base metals.
		Alchemists were concerned with the transmutation of base metals into gold (a noble metal) for economic gain, or as a metaphor for more esoteric processes.
		In this sense of the word, graphite is more noble than silver (even though it is alchemically more base) and the relative nobility of many materials is highly dependent upon context, as for aluminium and stainless steel in conditions of varying pH.
	en.wikipedia.org /wiki/Noble_metal (387 words)

	Synthesis of noble metals: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-03)
		As Synthesis of noble metalls one calls the realization of the old dream of alchimests, EHandler: no quick summary.
		The synthesis of noble metalls is only possible with methods of nuclear physics, EHandler: no quick summary.
		These noble metals are not produced by nuclear fission.
	www.absoluteastronomy.com /encyclopedia/s/sy/synthesis_of_noble_metals.htm (570 words)

	Gold - Wikipedia, the free encyclopedia
		The metal occurs as nuggets or grains in rocks and in alluvial deposits and is one of the coinage metals.
		Gold is a metallic element with a characteristic yellow color, but can also be fl or ruby when finely divided, while colloidal solutions are intensely colored and often purple.
		A similar karat weight when alloyed with silvery metals will appear less warm in color, and some low karat white metal alloys may be sold as "white gold", silvery in appearance with a sightly yellow cast but far more resistant to corrosion than silver or sterling silver.
	en.wikipedia.org /wiki/Gold (3545 words)

	Inorganic-containing composites - Patent 5540981
		The efficiency of the impregnation of a catalyst support with a metal or metal oxide to form a catalyst is a function of the interactive nature of the catalyst support with the metal or metal oxide.
		Soluble metal compounds suitable for the present invention include metals, metal ions, metal complexes, and organometallic compounds which are at least partially soluble in the polymer matrix or in an aqueous polymer emulsion or dispersion.
		In the case of metal ions and metal complexes of gold, copper, silver, and metals of the platinum group, it is possible to reduce these metal ion and metal complexes to their corresponding metal.
	www.freepatentsonline.com /5540981.html (9138 words)

	Synthesis and characterization of a new class of metal nitrides
		New research shows that a novel class of nitrides made from "noble" metals can be synthesized under extreme conditions and are likely to have unusual or even unique properties that would be useful in semiconductor, superconductor and corrosion-resistant devices.
		Historically, transition metal nitrides are fundamentally and technologically important because of their strength and durability, and are useful for their optical, electronic and magnetic properties.
		Noble metals are those that do not form compounds with other elements very easily.
	www.eurekalert.org /pub_releases/2006-03/dlnl-sac030206.php (490 words)

	Notice 04-20
		Tailored nanostructures based on light metal hydrides, carbon-based nano-materials, and other non-traditional storage approaches need to be explored with the focus on understanding the unique surfaces and interfaces of nanostructured materials and how they affect the energetics, kinetics, and thermodynamics of hydrogen storage.
		Synthesis and characterization of radically new nanoscale and porous materials are required, including microporous oxides, metal-organic frameworks, and carbons that remove sulfur and carbon monoxide from hydrogen.
		Most fuel-cell and low-temperature reforming catalysts are based on expensive noble metals (e.g., platinum), and their limited reserves threaten the long-term sustainability of a hydrogen economy.
	www.science.doe.gov /grants/Fr04-20.html (4070 words)

	Gold
		A soft metal, gold is often alloyed with other metals to give it more strength.
		Gold will alloy with many other metals; alloys with copper yield a redder metal, alloys with iron are green, aluminium alloys are purple, alloys with platinum metals produce white, natural bismuth with silver alloys produce fl.
		Refining of the metal is frequently accomplished by chlorination or electrolysis.
	gold.ask.dyndns.dk (2598 words)

	Dehydrogenation of isobutane over a zeolitic catalyst - Patent 4727216
		Composites of Group VIII noble metals are multifunctional in that they have substantial and concurrent activity for isomerization, cracking and dehydrogenation reactions.
		wherein M represents a metal, particularly alkali and alkaline earth metals, n is the valence of M, and y may have any value up to about 8 depending on the identity of M and the degree of hydration of the crystalline zeolite.
		A possible element of the present invention is the presence of an alkaline earth metal in the catalyst.
	www.freepatentsonline.com /4727216.html (2919 words)

	Protein assemblies as templates for nanoparticle patterning
		The properties of metallic arrays critically depend on the size and shape of the colloidal metallic particles they are made from as well as on their one, two or three dimensional arrangement.
		Depending on the kind of reducing agent and the metal concentration used during synthesis, palladium nanoparticles with different sizes were synthesized.
		We have shown that microtubules are efficient bioorganic templates for the support of noble metal particles to form structurally defined nanoparticle arrays.
	www.foresight.org /Conferences/MNT10/Abstracts/Unger (553 words)

	Books Springer - Nanowires and Nanobelts - Materials, Properties and Devices
		Volume 1, Metal and Semiconductor Nanowires covers a wide range of materials systems, from noble metals (such as Au, Ag, Cu), single element semiconductors (such as Si and Ge), compound semiconductors (such as InP, CdS and GaAs as well as heterostructures), nitrides (such as GaN and Si3N4) to carbides (such as SiC).
		The objective of this volume is to cover the synthesis, properties and device applications of nanowires based on metal and semiconductor materials.
		The molecular nanowires, their quantized conductance, and metallic nanowires synthesized by chemical technique will be introduced next.
	www.azom.com /Sale.asp?SaleID=103 (320 words)

	The Mystery and Legacy of Joseph Papp's Noble Gas Engine
		The basic "problem" with cold fusion is, of course, that water in contact with metals with a bit of low voltage electrical excitation is not supposed to make nuclear reactions and release huge thermal excess energy per atom of presumed reactant.
		The problem with Papp's noble gas engine is that the noble gases employed— argon, helium, krypton, neon, and xenon— are essentially non-reactive chemical elements (except in certain exotic combinations known to modern chemists); that's why they are called noble.
		In full public view, just a few cubic centimeters of noble gas had been admitted with a hypodermic needle to the sparking chamber, and this made the thick steel-walled chamber peel back like a banana when the device was electrically triggered.
	www.infinite-energy.com /iemagazine/issue51/papp.html (3692 words)

	Particles 2005 - Surface Modification in Particle Technology
		Synthesis of nanoparticles in a continuous-flow microwave reactor
		Synthesis and inkjet-printing of spherical silica pigments with incorporated organic dye molecules
		Synthesis and electroresponsive characteristics of monodisperse polymeric microbeads with conducting polyaniline shell
	www.nanoparticles.org /Particles2005 (1430 words)

	National Mining Association -- 40 Common Minerals and Their Uses
		As a pure metal, molybdenum is used because of its high melting temperatures (4,730 F) as filament supports in light bulbs, metalworking dies and furnace parts.
		A refractory metal with unique electrical, chemical and physical properties used to produce electronic components, tantalum capacitor; for high-purity tantalum metals in products ranging from weapon systems to superconductors; high-speed tools; catalyst; sutures and body implants; electronic circuitry; thin-film components.
		Zinc dust used for primers, paints, precipitation of noble metals; removal of impurities from solution in zinc electrowinning.
	www.nma.org /about_us/publications/pub_minerals_uses.asp (1614 words)

	Personalities Noble (Site not responding. Last check: 2007-11-03)
		Despite this, he was regarded the Second Teacher in philosophy for centuries and his work, aimed at synthesis of philosophy and sufism, paved the way for Ibn Sina's work.
		In the field of chemistry, he did not believe in the possibility of chemical transmutation because, in his opinion, the metals differed in a fundamental sense.
		The nobility and sympathy inherent in his very nature soon endeared him to his countrymen so much so that they used to call him Rabban which implies "my leader".
	www.jamil.com /personalities (15221 words)

	ScienceDaily: Clusters Of Aluminum Atoms Found To Have Properties Of Other Elements Reveal A New Form Of Chemistry (Site not responding. Last check: 2007-11-03)
		Research Reveals Halogen Characteristics Of Cluster Of Metal Atoms (April 2, 2004) -- A stable cluster of aluminum atoms, Al13, acts as a single entity in chemical reactions, demonstrating properties similar to those of a halogen, reports a research team led by A Welford Castleman...
		New Noble Gas Chemical Compounds Created (March 23, 2005) -- Chemical compounds consisting of noble gases combined with hydrocarbon molecules -- a feat previously thought to be unattainable -- have been created as the result of the work of researchers at the...
		Metal -- A metal is an element that readily forms ions (cations) and has metallic bonds, and metals are sometimes described as a lattice of positive ions (cations) in a cloud of...
	www.sciencedaily.com /releases/2005/02/050205125336.htm (1940 words)

	Palladium -
		Palladium is a soft silver-white metal that resembles platinum.
		Palladium is the least dense and has the lowest melting point of the platinum group metals.
		However it is commercially produced from nickel-copper deposits found in South Africa and Ontario; the huge volume of ore processed makes this extraction profitable in spite of the low proportion of palladium in these ores.
	psychcentral.com /psypsych/Palladium (932 words)

	HPCAT Staff
		Synthesis and characterization of a binary noble metal nitride
		Although numerous metals react with nitrogen there are no known binary nitrides of the noble metals.
		We report the discovery and characterization of platinum nitride (PtN), the first binary nitride of the noble metals group.
	www.hpcat.aps.anl.gov /hl2.htm (207 words)

	Palladium (Site not responding. Last check: 2007-11-03)
		The compound palladium chloride was at one time prescribed as a tuberculosis treatment at the rate of 0.065g per day (approximately one milligram per kilogram of body weight).
		About the possibility of producing palladium in reactors or extracting it from spent nuclear fuel, see Synthesis of noble metals.
		Pd-107 versus Ag correlations observed in bodies, which have clearly been melted since accretion of the solar system, must reflect the presence of short-lived nuclides in the early solar system.
	palladium.ask.dyndns.dk (789 words)

	G.W.F HEGEL - Lectures on the History of Philosophy - G.W F Hegel (1805 - 1806) - Chapter II. — Transition Period C. ...
		e., it consists in a more simple synthesis of the phenomenal world; but these simpler elements, these instincts, impulses, and forces, are just as much a fixed present existence in self-consciousness, unspiritual, and without movement.
		Robinet here goes through the plants, the animals, and also the metals, the elements, air, fire, water, andc.; and seeks from them to demonstrate the existence of the germ in whatever has life, and also how metals are organised in themselves.
		For in the sign of the cross lying and deceit had been victorious, under this seal institutions had become fossilised, and had sunk into all manner of degradation, so that this sign came to be represented as the epitome and root of all evil.
	evans-experientialism.freewebspace.com /hegel30.htm (5202 words)

	SBF Glossary: AK to Alverno
		The alkali metals are the metals whose hydroxides are the
		Alkali metals are extremely electronegative, so their compounds are generally basic.
		In current usage, the alkaline earths are the metals in group IIA of the periodic table (Be, Mg, Ca, Sr, Ba, Ra).
	www.plexoft.com /SBF/A06.html (9993 words)

	Summary and Evaluation of China, Korea & Japan to 1875 by Sanderson Beck
		His attempts to control the economy while hoarding gold failed; as millions died from famine and the turmoil, peasants joined with Han nobles in a wide-spread rebellion that overthrew and killed Wang Mang in 23 CE.
		Jurchen nobles governed the Chinese majority and adopted their examination system.
		His grand synthesis of Confucian philosophy has been compared to the work of Thomas Aquinas.
	www.san.beck.org /3-13-Summary.html (16017 words)

	RC-200R Petrochemical Catalysts - Update (Site not responding. Last check: 2007-11-03)
		The total is expected to increase to $2.7 billion by year 2005 as it grows at an AAGR (average annual growth rate) of 3.9% during the forecast period.
		There are hundreds, if not thousands, of different catalysts, ranging from high-volume commodities like hydrogen fluoride and sulfuric acid to very expensive noble metals.
		The market for chemical catalysts is estimated at about $1,075 million in 2000, and is expected to grow at an AAGR of 4.1% to reach $1,312 million by 2005.
	www.bccresearch.com /editors/RC-200R.html (462 words)

	Fuel Cell Works Supplemental News Page
		This work is currently following two lines of investigation, depending on which fuel is used.
		The first, using hydrogen mini fuel cells (stored in a small metal hydride cartridge), while the current focus is on the use of direct methanol (DMFC).
		To date it has been possible to assemble and test a 1.5W hydrogen mini fuel cell prototype which, combined with supercondensers, has been able to power a mobile phone enabling calls to be made and received.
	www.fuelcellsworks.com /Supppage664.html (512 words)

	FINAL EXAM REVIEW GUIDE
		Use significant digits in your calculations when a problem requires you to.
		Binary (1 metal (cation) + 1 non metal (anion))
		non metal only has 1 atom, it doesn’t get a prefix, all other
	www.usd116.org /dmigut/enrchemjan05review.htm (243 words)

	Reprints
		Experimental Partitioning of Zirconium, Niobium, and Titanium between Platinum Group Metals and Silicate Liquid: Implications for the Origin of Refractory Metal Nuggets in Carbonaceous Chondrites.
		The Geochemical Behavior of Refractory Noble Metals and Lithophile Trace Elements in Refractory Inclusions in Carbonaceous Chondrites.
		Synthesis, Characterization and Processing of Monosized Ceramic Powders, in Better Ceramics Through Chemistry (eds.
	solarsystem.wustl.edu /reprints.htm (2429 words)

	Materials & Catalysis-Faculty-Department of Chemistry-University of Massachusetts Amherst
		We have had a number of international exchange students and scholars come to our campus to work in areas of polymer, materials, and catalysis science during the past decade.
		Catalysis is a vital part of molecular synthesis, and is often related to development of new heterogeneous material preparations, as well as new soluble systems.
		The range of catalytic interest in our department is broad, ranging from the study of enzymology, to the modeling of adsorption and reactivity in molecular pores and on surfaces, to the development of entirely new catalytic systems that aim to replace expensive noble metals with cheaper but still-effective ones.
	www.chem.umass.edu /Faculty/materialsCatalysis.htm (408 words)

	(WO 99/61550) IMPROVED FISCHER-TROPSCH ACTIVITY FOR "NON-PROMOTED" COBALT-ON-ALUMINA CATALYSTS (Site not responding. Last check: 2007-11-03)
		(57) Cobalt catalysts, and processes employing these inventive catalysts, for hydrocarbon synthesis.
		The inventive catalyst comprises cobalt on an alumina support and is not promoted with any noble or near noble metals.
		In another aspect of the invention, the cobalt catalyst is preferably reduced in the presence of hydrogen at a water vapor partial pressure effective to increase the activity of the cobalt catalyst for hydrocarbon synthesis.
	wipo.int /cgi-pct/guest/getbykey5?KEY=99/61550.991202&ELEMENT_SET=DECL (193 words)

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