Engineering the surface chemical properties of semiconductor nanoparticles: surfactant-encapsulated CdTe-clusters

2000 ◽  
pp. 949-950 ◽  
Author(s):  
Dirk G. Kurth ◽  
Pit Lehmann ◽  
Constanze Lesser
Keyword(s):  
Chemical Properties ◽  
Semiconductor Nanoparticles ◽  
Surface Chemical

Effects of chemical treatment as an adjunctive of air‐abrasive debridement on restoring the surface chemical properties and cytocompatibility of experimentally contaminated titanium surfaces

2019 ◽  
Vol 108 (1) ◽  
pp. 183-191 ◽  
Author(s):  
Yuki Ichioka ◽  
Takashi Kado ◽  
Izumi Mashima ◽  
Futoshi Nakazawa ◽  
Kazuhiko Endo ◽  
...  
Keyword(s):  
Chemical Treatment ◽  
Chemical Properties ◽  
Surface Chemical ◽  
Titanium Surfaces

Effect of High-Temperature Defibration on the Chemical Structure of Hardwood

Holzforschung ◽  
2002 ◽  
Vol 56 (1) ◽  
pp. 51-59 ◽  
Author(s):  
P. Widsten ◽  
J.E. Laine ◽  
P. Qvintus-Leino ◽  
S. Tuominen
Keyword(s):  
High Temperature ◽  
Lignin Content ◽  
Bulk Composition ◽  
Chemical Properties ◽  
Water Extract ◽  
Fiber Surface ◽  
Phenolic Hydroxyl ◽  
Hydroxyl Groups ◽  
Surface Chemical ◽  
Alkyl Aryl

Summary The present paper aims at elucidating the effect of high-temperature defibration at different temperatures on the bulk and surface chemical properties of defibrated birch, aspen and eucalypt. The results indicate that defibration of these hardwoods results in partial depolymerization of fiber lignin via (homolytic) cleavage of interunit alkyl-aryl (β-O-4) ether bonds. This increases the phenolic hydroxyl content and produces relatively stable (phenoxy) radicals. Syringyl-type lignin is more extensively depolymerized than guaiacyl-type lignin. Defibration generates water-extractable material, which is enriched in hemicellulose-derived carbohydrates and has a substantial content of aromatic compounds rich in phenolic hydroxyl groups. The amount of water-extract and the extent of lignin interunit ether bond cleavage increase with an increase in defibration temperature. The differences between various hardwood species in this respect are small. The surface chemical composition of the fibers differs considerably from their bulk composition, but is not significantly influenced by variations in defibration temperature. Lipophilic extractives cover a large portion of the fiber surface, while the lignin content of lipophilic extractives-free fiber surfaces is 2–3 times as high as the bulk lignin content of the fibers.

New AlPO4-sepiolite systems as acid catalysts, I. Preparation, texture, surface-chemical properties and cyclohexene skeletal isomerization conversion

1990 ◽  
Vol 25 (5) ◽  
pp. 2513-2519 ◽  
Author(s):  
J. M. Campelo ◽  
A. Garcia ◽  
D. Luna ◽  
J. M. Marinas
Keyword(s):  
Chemical Properties ◽  
Skeletal Isomerization ◽  
Acid Catalysts ◽  
Surface Chemical ◽  
Texture Surface

scholarly journals The Flexible Surface: Molecular Studies Explain the Extraordinary Diversity of Surface Chemical Properties

1998 ◽  
Vol 75 (2) ◽  
pp. 161 ◽  
Author(s):  
Gabor A. Somorjai ◽  
Günther Rupprechter
Keyword(s):  
Chemical Properties ◽  
Surface Chemical ◽  
Flexible Surface ◽  
Molecular Studies

Theoretical Study of Size Effects on Surface Chemical Properties for Nanoscale Diamond Particles

2014 ◽  
Vol 118 (45) ◽  
pp. 26061-26069 ◽  
Author(s):  
Tian Yuan ◽  
Karin Larsson
Keyword(s):  
Size Effects ◽  
Theoretical Study ◽  
Chemical Properties ◽  
Surface Chemical ◽  
Diamond Particles

scholarly journals Characterization of Surface Chemical Properties of Oxides in Natural Waters

1980 ◽  
pp. 1-31 ◽  
Author(s):  
HERBERT HOHL ◽  
LAURA SIGG ◽  
WERNER STUMM
Keyword(s):  
Natural Waters ◽  
Chemical Properties ◽  
Surface Chemical

scholarly journals Influence of ultrasound pre-treatment on ilmenite surface chemical properties and collectors’ adsorption behaviour

2019 ◽  
Vol 57 ◽  
pp. 98-107 ◽  
Author(s):  
Kaiqian Shu ◽  
Longhua Xu ◽  
Houqin Wu ◽  
Zhoujie Wang ◽  
Yanbo Xu ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Surface Chemical ◽  
Adsorption Behaviour ◽  
Pre Treatment

Surface chemical properties of biopolymers determined by contact angle measurements

1978 ◽  
Vol 256 (3) ◽  
pp. 261-265 ◽  
Author(s):  
K. S. Birdi ◽  
J. Jeppesen
Keyword(s):  
Contact Angle ◽  
Chemical Properties ◽  
Surface Chemical ◽  
Angle Measurements ◽  
Contact Angle Measurements
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