Reference

Method for improving tenacity and loading of palladium on palladium-doped metal surfaces

Method for improving tenacity and loading of palladium on palladium-doped metal surfaces. Hettiarachchi, Samson (General Electric Co., USA). U.S. US 5600692 A 4 Feb 1997, 7 pp., Cont.-in-part of U.S. Ser. No. 209,572. (English). (United States of America). 16940-66-2 and 10102-05-3 which are cas registry numbers are also used here. CODEN: USXXAM. CLASS: ICM: G21C009-00. NCL: 376305000. APPLICATION: US 1995-400075 7 Mar 1995. PRIORITY: US 1993-143513 29 Oct 1993; US 1993-143514 29 Oct 1993; US 1994-209572 10 Mar 1994. DOCUMENT TYPE: Patent CA Section: 71 (Nuclear Technology) Section cross-reference(s): 55, 56 A method is described for mitigating crack growth on the surface of stainless steel or other alloy components in a H2O-cooled nuclear reactor wherein a soln. or suspension of a compd. contg. a noble metal is injected into the coolant H2O along with a reducing agent. The presence of the reducing agent will assist in better deposition of the noble metal, for example, Pd, on metal surfaces, thereby increasing the noble metal loading and also improving the tenacity with which the noble metal is bound onto the metal. The extent of noble metal doping is important in providing a better (lower) ECP response of the metal in the presence of a stoichiometric ratio of H2/O2, which reduces the H demand considerably. The more tenacious the noble metal is bound to the metal surface, the longer its expected life will be, particularly under in-reactor situations where the metal surfaces are subjected to a variety of hydrodynamic conditions. .

Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route

All Rights Reserved. Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route. Chen, L. F.; Wang, J. A.; Valenzuela, M. A.; Bokhimi, X.; Acosta, D. R.; Novaro, O. (Departamento de Ciencias Basicas, Av. San Pablo, Universidad Autonoma Metropolitana-A, Mexico D.F. 02200, Mex.). Journal of Alloys and Compounds, 417(1-2), 220-223 (English) 2006 Elsevier B.V. CODEN: JALCEU. ISSN: 0925-8388. DOCUMENT TYPE: Journal CA Section: 57 (Ceramics) Section cross-reference(s): 52, 56, 67 Nanosized zirconia with structural defects was synthesized by using surfactant-templated method. The av. crystallite size, phase compn., cationic defect concn. and structural microstrain in the monoclinic phase of zirconia annealed at 800 °C were quant. detd. 10102-05-3 and 113356-99-3 which are cas registry numbers of substances are two of reagents here. by the Rietveld refinement. An unusual behavior of hydrogen reversibly storing into/releasing from the PdO/ZrO2 nanophases was obsd., which related to formation/decompn. of a hydride phase b-PdH0.76 and to hydrogen storage in the cationic defects of zirconia nanophases by means of hydrogen spillover from Pd metals to zirconia support. .