𝔖 Bobbio Scriptorium
✦   LIBER   ✦

ChemInform Abstract: Oxidation Kinetics of Calcium-Doped Palladium Powders.

✍ Scribed by S. JAIN; T. T. KODAS; M. HAMPDEN-SMITH

Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
28
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

✦ Synopsis

1997 reactions reactions (including homogeneous catalysis) H 1000

32 -010

Oxidation Kinetics of Calcium-Doped Palladium Powders. -With regard to a detection of mechanisms through which Ca improves the oxidation behavior of Pd powders, the oxidation kinetics of Ca-containing Pd powders, prepared by spray pyrolysis, are studied in the temp. range 600 to 675 β€’ C using TGA. As shown by TEM images, the conversion of Pd to PdO seems to proceed from the particle surface to the interior. A mechanism is suggested in which the oxidation of pure Pd proceeds by chemisorption and diffusion of oxygen, formation of substoichiometric oxide and its conversion to Pd(II)O and is limited by the diffusion of oxygen through substoichiometric PdO and/ or Pd(II)O. According to the kinetic data Ca improves the oxidation resistance of Pd powders probably by inhibiting oxygen diffusion through metal oxide layers around Pd. -(JAIN, S.; KODAS, T. T.; HAMPDEN-SMITH, M.; J.

πŸ“œ SIMILAR VOLUMES

Kinetics of high-pressure removal of hyd
Kinetics of high-pressure removal of hydrogen sulfide using calcium oxide powder
✍ Shriniwas S. Chauk; Rajeev Agnihotri; Raja A. Jadhav; Santhosh K. Misro; Liang-S πŸ“‚ Article πŸ“… 2000 πŸ› American Institute of Chemical Engineers 🌐 English βš– 228 KB πŸ‘ 1 views

## Abstract Sulfidation reaction of CaO at high pressure (up to 2 MPa) and high temperature (up to 900Β°C) to remove H~2~S in a coal‐fired gasifier was studied in a high‐pressure and temperature differential‐bed flow‐through reactor. Experimental conditions selected are typical for pressurized gasif

ChemInform Abstract: Palladium-Catalyzed
ChemInform Abstract: Palladium-Catalyzed Oxidative Kinetic Resolution of Secondary Alcohols
✍ Kenneth M. Nicholas; E. M. Ferreira; B. M. Stoltz; D. R. Jensen; J. S. Pugsley; πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 25 KB πŸ‘ 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a β€œFull Text” option. The original article is trackable v

ChemInform Abstract: Low-Temperature Hyd
ChemInform Abstract: Low-Temperature Hydrothermal Synthesis of Yttrium-Doped Zirconia Powders.
✍ Takayuki Tsukada; Sridhar Venigalla; Augusto A. Morrone; James H. Adair πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 32 KB πŸ‘ 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a β€œFull Text” option. The original article is trackable v