Controlled synthesis of carbon-supported Co catalysts from single-sites to nanoparticles: characterization of the structural transformation and investigation of their oxidation catalysis

2017 ◽  
Vol 19 (7) ◽  
pp. 4967-4974 ◽  
Author(s):  
Kazuki Nakatsuka ◽  
Takeharu Yoshii ◽  
Yasutaka Kuwahara ◽  
Kohsuke Mori ◽  
Hiromi Yamashita
Keyword(s):  
Heat Treatment ◽  
Structural Transformation ◽  
Oxidation Catalysis ◽  
Controlled Synthesis ◽  
Co Catalysts ◽  
Structure Activity ◽  
Oxidation Of Ethylbenzene ◽  
Nanoparticles Characterization ◽  
Relationship Of

Structural transformation of Co species supported on activated carbon during heat treatment and the structure–activity relationship of the resulting species in the oxidation of ethylbenzene were investigated.

scholarly journals Synthesis and characterization of Sant-75 derivatives as Hedgehog-pathway inhibitors

2012 ◽  
Vol 8 ◽  
pp. 841-849 ◽  
Author(s):  
Chao Che ◽  
Song Li ◽  
Bo Yang ◽  
Shengchang Xin ◽  
Zhixiong Yu ◽  
...  
Keyword(s):  
Potent Inhibitor ◽  
Structure Activity Relationship ◽  
Hedgehog Pathway ◽  
Activity Relationship ◽  
Synthesis And Characterization ◽  
Important Class ◽  
Diversity Oriented Synthesis ◽  
Structure Activity ◽  
Relationship Of

Sant-75 is a newly identified potent inhibitor of the hedgehog pathway. We designed a diversity-oriented synthesis program, and synthesized a series of Sant-75 analogues, which lays the foundation for further investigation of the structure–activity relationship of this important class of hedgehog-pathway inhibitors.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

CHARACTERIZATION OF ENHANCED FIELD EMISSION SITES ON NIOBIUM SURFACES DUE TO HEAT TREATMENT

1986 ◽  
Vol 47 (C7) ◽  
pp. C7-133-C7-138 ◽  
Author(s):  
N. SANKARRAMAN ◽  
Ph. NIEDERMANN ◽  
R. J. NOER ◽  
O. FISCHER
Keyword(s):  
Heat Treatment ◽  
Field Emission
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