Pt-Ir
Mechanical Properties of Ti–50(Pt,Ir) High Temperature Shape Memory Alloys
... To develop high-temperature shape memory alloys, Ti–50(Pt,Ir)mol% compounds are noted because of their martensitic transformation from B2 to B19(2H) or 4H(4O) structures above 1273 K. A thermal expansion ...
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Effect of Hf Addition on Oxidation Properties of Pt Ir Modified Aluminide Coating
... of Pt-Ir modified aluminide coatings was investigated. Pt-15 at%Ir and Pt-15 at%Ir with trace amount of Hf films with 78 mm thick were deposited on a Ni-based single crystal ...
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ABSTRACTS: April 1993108-118
... Teflon bonded Pt-Ir bimetal catalyst-based porous electrodes were prepared for use in H,-Cl, fuel cells. An accumulation of the platinum group metals occurred on the surface of[r] ...
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Unsupported PtxRuyIrz and PtxIry as Bi-functional Catalyst for Oxygen Reduction and Oxygen Evolution Reactions in Acid Media, for Unitized Regenerative Fuel Cell
... and Ir) using combinatorial ...the Pt-Ir electrode increase the reaction rate by stabilizing the surface atom/oxygen bonds ...[16]. Pt-Ru-Ir supported in Carbon black and Vulcan has ...
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SELECTION OF MIGRATION VMS AND DESTINATION PMS USING AN OPTIMIZATION ALGORITHM IN PCA-TA-IRIAL APPROACH FOR GREEN AND LOAD BALANCED CLOUD COMPUTING
... in PT-IRIAL, optimization algorithms such as Genetic Algorithm (GA), Particle Swarm Optimization (PSO) and Artificial Plant Optimization (APO) algorithms are introduced in this ...
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Biocompatibility and magnetic resonance imaging characteristics of carbon nanotube yarn neural electrodes in a rat model
... cell layers adjacent to the control electrodes were significantly thicker at 1 week on HE staining, indicative of inflammation and acute tissue injury (Fig. 2a, e). By 12 weeks, the margins were more similar, indicative ...
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Investigations of Nanoscale Variations in Spin and Charge Transport in Manganites and Organic Semiconductors Using Spin Polarized Scanning Tunneling Spectroscopy
... polarized Pt/Ir tip show variations on the scale of a few hundred nanometers in size in the bulk ferromagnetic state, which are believed to be the result of intrinsic inhomogeneity of the manganites due to ...
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Electrochemical Stability of Cu, Ni, Co, Pt and Ir Metals Sheet and Their Composite Electrodes in Potassium Hydroxide Solution
... Co, Pt, Ir metals sheet and their respective composite electrodes in potassium hydroxide (KOH) solution has been studied using cyclic voltammetry ...
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Effect of Addition of Different Promoters on the Performance of Pt-Sn-K/Al2O3 Catalyst in the Propane Dehydrogenation
... trimetallic Pt/Sn/K and tetrametallic catalysts Pt/La/Sn/K, Pt/Ir/Sn/K, Pt/Re/Sn/K and Pt/Sn/Cs/K were prepared by sequential impregnation of γ-alumina ...The Pt/Sn/Cs/K ...
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Evaluation of Pt-Ru-Ir as Bifunctional Electrocatalysts for the Oxygen Electrode in a Unitized Regenerative Fuel Cell
... A key issue on URFC development is the synthesis of efficient electrocatalysts for oxygen reduction and water electrolysis. Besides, they should be economic and corrosion resistant during electrolysis. Nowadays, platinum ...
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Glycerol Oxidation on Pd Electrodes Modified with Pt
... pseudomorphic Pt monolayer on Pd substrates, the effect of the d–band filling of the substrate is expected to be slight since the fractional filling of the d–bands of Pd and Pt is the same, and due to a ...
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Construction of Highly Active Pt/Ni-Fe Layered Double Hydroxide Electrocatalyst towards Methanol Oxidation in Alkaline Medium
... novel Pt/Ni-Fe layered double hydroxide (Pt/Ni-Fe LDH) electrocatalyst was fabricated by a two-step facile process for oxidation of methanol in alkaline ...that Pt/Ni-Fe LDH electrocatalyst exhibits ...
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Synthesis and Characterization of Electrochemically Platinum- Polyaniline Modified Carbon Textile Electrodes
... of Pt/C and Pt/PANI/C in the presence of amaranth dye was also observed in voltammetric experiments focused on characterization of azo dyes using Pt and dispersed Pt/PANI/Pt electrodes ...
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Synthetic routes towards spin probe-grafted copolymers
... SPECTRA Figure 1 : IR 4-Maleimido-TEMP0 of Figure 2: IR of the Copolymer izat ion Figure 3: IR IR Figure 5: IR Using 6: IR Figure 7: IR 8: IR IR Using Purification Tetrahydrofuran for Pu[r] ...
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Co-electrodeposition of Platinum and Rhodium in Poly(3,4-ethylenedioxythiophene)-Poly(styrene sulfonic acid) as Electrocatalyst for Methanol Oxidation
... Among the CPs that have found favor for use as host matrices for the development of such systems are mainly polyaniline (PANI) [59,60], polypyrrole (PPy) [61,62], and polythiophene (PT) [63] based conducting ...
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The Wnt and Delta Notch signalling pathways interact to direct pair rule gene expression via caudal during segment addition in the spider Parasteatoda tepidariorum
... Parasteatoda, Pt-eve and Pt-run-1 are expressed in the SAZ and subsequently in stripes associated with the formation of all of the segments that are generated from this tissue ...
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The Science and Fiction of Pertussis Vaccines
... know a subjects’ antibody values to multiple anti- gens at the time of exposure. These data were avail- able in only the 2 trials that we were involved with. The serologic correlates of immunity findings in these 2 ...
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Facile Fabrication of Pt-Cu Nanoclusters-Decorated Porous Poly(5-cyanoindole) with High Electrocatalytic Activity
... sized Pt-Cu nanoclusters on a glassy carbon (GC) electrode by electrochemical ...The Pt-Cu nanoclusters-decorated P5CN (Pt-Cu/P5CN/GC) shows remarkable electrocatalytic activity toward methanol and ...
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NEW PATENTS: July 1968115-120
... Electrolytic production of oxides of Pt and/or Pd or oxides of Pt and/or Pd mixed with oxides of other metals not harmful to the catalytic properties of the Pt and/or [r] ...
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IR & UV.pdf
... basic IR spectrum is essentially a graph of infrared light absorbance (or transmittance) on the vertical axis ...in IR spectra are reciprocal ...of IR wavelength are commonly given ...
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