• catalytic
  • In this way, it is possible for the individual catalytic centres made of iron atoms to be separated from each other by aluminium atoms. (fz-juelich.de)
  • A series of palladium( II ) complexes incorporating di-NHC- amine ligands has been prepared and their structural, dynamic and catalytic behaviour investigated. (rsc.org)
  • He was trying to make nanocrystals of palladium - a silvery metal that's used to promote chemical reactions in catalytic converters and many industrial processes - by heating a solution containing palladium atoms to more than 230 degrees Celsius. (lightsources.org)
  • More than half the supply of palladium and its congener platinum is used in catalytic converters, which convert as much as 90% of the harmful gases in automobile exhaust (hydrocarbons, carbon monoxide, and nitrogen dioxide) into less noxious substances (nitrogen, carbon dioxide and water vapor). (wikipedia.org)
  • molecule
  • The structure helped explain puzzles about ferrocene's conformers, the molecule features an iron atom sandwiched between two parallel cyclopentadienyl rings. (wikipedia.org)
  • The boron atom in this molecule is a key substructure because through it certain proteasomes are blocked that would otherwise degrade proteins. (wikipedia.org)
  • The F2 molecule is commonly described as having exactly one bond (in other words, a bond order of 1) provided by one p electron per atom, as are other halogen X2 molecules. (wikipedia.org)
  • nitrogen
  • The complexes [ trans -(κ 2 - tBu C N(Bn) C tBu )PdCl 2 ] ( 12 ) and [ trans -(κ 2 - Mes C N(H) C Mes )PdCl 2 ] ( 13 ) do not exhibit interaction between the amine nitrogen and palladium atom respectively. (rsc.org)
  • unusual
  • This transition metal dichalcogenide has an unusual monoclinic structure, with pairs of selenium atoms existing as dimers forming layers between palladium atom sheets. (wikipedia.org)
  • The aurophilic interaction is thought to result from electron correlation of the closed-shell components, which is unusual because closed-shell atoms generally have negligible interaction with one another at distances on the scale of the Au-Au bond. (wikipedia.org)
  • hydrogenation
  • The cluster size of an ensemble of palladium nanoclusters was found to increase on hydrogenation. (esrf.eu)
  • The structural and electronic changes of bulk palladium upon hydrogenation are well documented . (esrf.eu)
  • As hydrogen in a metal can decrease the strength of the host metal bonding, this raises the question of how an ensemble of palladium nanoclusters will interact during and after hydrogenation. (esrf.eu)
  • spectroscopy
  • The high frequency of molecular vibration is a consequence of the small mass of the hydrogen atom as compared to the mass of the oxygen atom and this makes detection of hydroxyl groups by infrared spectroscopy relatively easy. (wikipedia.org)
  • Defects
  • clarification needed] Palladium films with defects produced by alpha particle bombardment at low temperature exhibit superconductivity having Tc=3.2 K. Naturally occurring palladium is composed of seven isotopes, six of which are stable. (wikipedia.org)
  • crystalline
  • 2D Materials, sometimes referred to as single layer materials, are crystalline materials consisting of a single layer of atoms. (wikipedia.org)
  • hypothesis
  • Additional physics knowledge would have been especially helpful in this case because the hypothesis about fusion occurring in palladium was so unconventional. (berkeley.edu)
  • single
  • It is well known that palladium only delivers the desired product when active centres that are as small as possible are present, approximately in the shape of single palladium atoms in an otherwise inactive matrix. (fz-juelich.de)
  • This is how the idea came about, to "fix" the active centres, initially single palladium atoms in a crystal lattice made from gallium. (fz-juelich.de)
  • phases
  • The absorption of hydrogen produces two different phases, both of which contain palladium metal atoms in a face centered cubic (fcc, rocksalt) lattice, which is the same structure as pure palladium metal. (wikipedia.org)
  • E = E 0 + R T F ln ⁡ a H + ( p H 2 p 0 ) 1 / 2 {\displaystyle E=E^{0}+{RT \over F}\ln {a_{\mathrm {H} ^{+}} \over ({\frac {p_{\mathrm {H} 2}}{p^{0}}})^{1/2}}} When palladium is electrochemically charged by hydrogen, the existence of two phases is manifested by a constant potential of approximately +50 mV compared to the reversible hydrogen electrode. (wikipedia.org)
  • wherein
  • 12 . A method of claim 9 wherein said biomolecule target is labeled with a heavy atom. (google.com)
  • 13 . A method of claim 12 wherein said heavy atom is a colloidal gold. (google.com)
  • 14 . A method of claim 13 wherein said heavy atom is detected using a backscattered electron detector. (google.com)
  • coordination
  • The average grain size was derived both from the width of the XRD Bragg peaks and the coordination number around Pd atoms obtained from EXAFS, whereas the (lateral) diameter of the nanoclusters at the sample surface was measured directly by STM. (esrf.eu)
  • absorption
  • Palladium is one of the most widely studied metals with respect to hydrogen absorption. (esrf.eu)
  • We investigated the effect of hydrogen exposure on a palladium cluster assembled film produced with a dual-target dual-laser vaporisation source with three different techniques: X-ray diffraction (XRD), Extended X-ray absorption fine structure (EXAFS) and scanning tunnelling microscopy (STM). (esrf.eu)
  • The absorption of hydrogen gas by palladium was first noted by T. Graham in 1866 and absorption of electrolytically produced hydrogen, where hydrogen was absorbed into a palladium cathode, was first documented in 1939. (wikipedia.org)
  • structure
  • In the early 1990s, researchers started using nanocrystals to build superlattices, which have the ordered structure of regular crystals, but with small particles in place of individual atoms. (lightsources.org)
  • known
  • Menlo Park, Calif. - Some of the world's tiniest crystals are known as "artificial atoms" because they can organize themselves into structures that look like molecules, including "superlattices" that are potential building blocks for novel materials. (lightsources.org)