Preparation of Metallic Palladium Catalysts with Thermally Stable Surface Areas and Activities

1996 ◽  
Vol 69 (8) ◽  
pp. 2383-2386 ◽  
Author(s):  
Satoru Yada ◽  
Tomoaki Sasaki ◽  
Makoto Hiyamizu ◽  
Yuzuru Takagi
2020 ◽  
Vol 7 (2) ◽  
pp. 541-550 ◽  
Author(s):  
Mateusz Odziomek ◽  
Mounib Bahri ◽  
Cedric Boissiere ◽  
Clement Sanchez ◽  
Benedikt Lassalle-Kaiser ◽  
...  

Porous noble metal nanostructures providing high surface areas and large pore volumes are attractive for numerous applications, especially catalysis.


Author(s):  
Vitaly A. Shchukin ◽  
Nikolay Ledentsov ◽  
Mikel Agustin ◽  
Joerg–Reinhardt Kropp ◽  
Yuri Shernyakov ◽  
...  

2008 ◽  
Vol 23 (6) ◽  
pp. 1652-1657 ◽  
Author(s):  
Peng Zhang ◽  
Thomas Lee ◽  
Fen Xu ◽  
Alexandra Navrotsky

The surface enthalpy of ZnO nanoneedles has been measured by oxide melt solution calorimetry of samples with different surface areas. Water adsorption calorimetry was carried out to characterize the stabilization effect of surface hydration. The surface enthalpies of hydrated and anhydrous surfaces (8.21 ± 0.67 and 9.81 ± 0.69 J/m2, respectively) are larger than those of nanorods. The less stable surface of nanoneedles provides a driving force for the transformation of nanoneedles into nanorods during aging. The formation of bushlike assemblies of nanoneedles is also discussed.


1974 ◽  
pp. 1599-1604 ◽  
Author(s):  
Kaoru FUJIMOTO ◽  
Hiroshi TAKEDA ◽  
Shigeki YOKOYAMA ◽  
Taiseki KUNUGI

Author(s):  
R.F. Dodson ◽  
L.W-F Chu ◽  
N. Ishihara

The extent of damage surrounding an implanted electrode in the cerebral cortex is a question of significant importance with regard to attaining consistency and validity of physiological recordings. In order to determine the extent of such tissue changes, 150 micron diameter platinum electrodes were implanted in the cortex of four adult baboons, and after eight days the animals were sacrificed by whole body perfusion with a 3% glutaraldehyde in 0.1M phosphate fixative.The calvarium was carefully removed and the electrode tracts were readily discernible in the firm, glutaraldehyde fixed tissue.Careful dissection of the zone of the electrode tract resulted in a small block which was further sectioned into tip, mid-tract and surface areas. Ultrastructurally, damage extended from the electrode sheath to the greatest extent of from 0.2 to 3.5 mm.


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