Tuning the CO-Reduction Product Distribution by Structural Modification of the Cu Electrode Surface

The influence of adsorption of DNA on its double-stranded (ds) structure was studied with the aid of hanging mercury drop electrode (HMDE) in neutral media. Changes in DNA reducibility followed by linear sweep voltammetry served as an indication of the DNA conformational changes in the electrode surface. It has been shown that, due to contact of ds DNA with the electrode for periods many times longer than those which can be reached at the dropping mercury electrode, extensive surface denaturation of DNA can be detected only in a narrow potential range around -1.2 V. At potentials more negative than this region neither surface denaturation nor blocking of the electrode by the reduction product were observed. On the other hand, interaction of the denatured DNA with the mercury surface under the same conditions, resulted in blocking of the electrode surface by the reduction product. In agreement with the previous studies in acid media similar blocking of the surface was observed at pH 5 both with thermally denatured and ds DNAs. On the basis of the experimental data the following conclusions have been drawn: i) in neutral media the course of interfacial events of DNA is strongly dependent on DNA conformation and differs from the course suggested for acid media; ii) the deduction concerning the behavior of ds DNA on the electrode in neutral media made by other authors on the basis of their measurements in acid media is not justified.

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Cristal-growth dynamics of n-doped gaAs

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100132352 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1544-1545

Author(s):

Pham V. Huong ◽

Stéphanie Bouchet ◽

Jean-Claude Launay

Keyword(s):

Crystal Growth ◽

Spatial Resolution ◽

Epitaxial Layer ◽

Outer Surface ◽

Gaas Substrate ◽

Structural Modification ◽

Growth Dynamics ◽

Argon Laser ◽

High Anisotropy ◽

Crystal Gaas

Microstructure of epitaxial layers of doped GaAs and its crystal growth dynamics on single crystal GaAs substrate were studied by Raman microspectroscopy with a Dilor OMARS instrument equipped with a 1024 photodiode multichannel detector and a ion-argon laser Spectra-Physics emitting at 514.5 nm.The spatial resolution of this technique, less than 1 μm2, allows the recording of Raman spectra at several spots in function of thickness, from the substrate to the outer deposit, including areas around the interface (Fig.l).The high anisotropy of the LO and TO Raman bands is indicative of the orientation of the epitaxial layer as well as of the structural modification in the deposit and in the substrate at the interface.With Sn doped, the epitaxial layer also presents plasmon in Raman scattering. This fact is already very well known, but we additionally observed that its frequency increases with the thickness of the deposit. For a sample with electron density 1020 cm-3, the plasmon L+ appears at 930 and 790 cm-1 near the outer surface.

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Soft recovery of a ferrous alloy: Structural modification and properties

DYMAT 2009 - 9th International Conferences on the Mechanical and Physical Behaviour of Materials under Dynamic Loading ◽

10.1051/dymat/2009136 ◽

2009 ◽

Author(s):

T. d'Almeida ◽

D. J. Chapman ◽

W. G. Proud ◽

P. J. Gould ◽

P. D. Church ◽

...

Keyword(s):

Structural Modification ◽

Ferrous Alloy

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Kinetics of compact layer formation and growth of 1,10-phenanthroline at the electrode surface

Journal de Chimie Physique ◽

10.1051/jcp/1990871597 ◽

1990 ◽

Vol 87 ◽

pp. 1597-1607 ◽

Cited By ~ 2

Author(s):

L Benedetti ◽

M Borsari ◽

C Fontanesi ◽

G Battistuzzi Gavioli

Keyword(s):

Electrode Surface ◽

Layer Formation ◽

Compact Layer ◽

Kinetics Of

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Electrode-surface coordination/organometallic chemistry : iodine and carbon monoxide on well-ordered and oxidatively disordered Pd(111)

Journal de Chimie Physique ◽

10.1051/jcp/1991881591 ◽

1991 ◽

Vol 88 ◽

pp. 1591-1612 ◽

Cited By ~ 5

Author(s):

GM Berry ◽

ME Bothwell ◽

SL Michelhaugh ◽

JR McBride ◽

MP Soriaga

Keyword(s):

Carbon Monoxide ◽

Organometallic Chemistry ◽

Electrode Surface

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Use of thermomechanical pulp fibers from waste woods for making eco-friendly cushioning material

TAPPI Journal ◽

10.32964/tj9.7.15 ◽

2010 ◽

Vol 9 (7) ◽

pp. 15-21 ◽

Cited By ~ 1

Author(s):

JI-YOUNG LEE ◽

CHUL-HWAN KIM ◽

JEONG-MIN SEO ◽

HO-KYUNG CHUNG ◽

KYUNG-KIL BACK ◽

...

Keyword(s):

Impact Test ◽

Product Distribution ◽

Expanded Polystyrene ◽

Thermomechanical Pulp ◽

Fiber Structure ◽

Pulp Fibers ◽

Cationic Starch ◽

Thermal Insulating ◽

Surface Sizing ◽

The Impact

Eco-friendly cushioning materials were made with thermomechanical pulps (TMPs) from waste woods collected from local mountains in Korea, using a suction-forming method without physical pressing. The TMP cushions had superior shock-absorbing performance, with lower elastic moduli than expanded polystyrene (EPS) or molded pulp. Even though the TMP cushions made using various suction times had many voids in their inner fiber structure, their apparent densities were a little higher than that of EPS and much lower than that of molded pulp. The addition of cationic starch contributed to an increase in the elastic modulus of the TMP cushions without increasing the apparent density, an effect which was different from that of surface sizing with starch. In the impact test, the TMP cushions showed a more ductile pattern than the brittle EPS. The porosity of the TMP cushion was a little less than that of EPS and much greater than that of molded pulp. The porous structure of the TMP cushions contributed to their excellent thermal insulating capacity, which was equivalent to that of EPS. In summary, the TMP packing cushions showed great potential for surviving external impacts during product distribution.

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