Chemistry in centrifugal fields

Atobe, Mahito; Hitose, Shingo; Nonaka, Tsutomu

doi:10.1016/s1388-2481(99)00058-2

Cited by 39 publications

(26 citation statements)

References 15 publications

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“…However, the results in the super gravity field suggest that increasing the gravity coefficient can improve the surface roughness and refine the grain size of deposits without increasing the current density. Atobe also observed that the surface structure of a polyaniline film obtained on upward electrode in the super gravity field was uniform and finely networked compared with that prepared in the natural gravity field [19,20]. These results confirm that the super gravity field has great influences on the morphology of deposits.…”

Section: Surface Morphology and Roughnessmentioning

confidence: 52%

“…They observed that the enhanced convection flow in the super gravity field can affect copper corrosion, which was the first report about the effect of a super gravity field on electrochemical reaction [17]. Atobe also observed that the super gravity field affected the surface morphology and structure of deposited polyaniline films anisotropically [19,20]. However, it is noted that the effects of super gravity field on the structures and properties of electrodeposited metal foils have rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

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Structure and mechanical properties of iron foil electrodeposited in super gravity field

Liu

Guo

Wang

et al. 2010

Surface and Coatings Technology

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Section: Surface Morphology and Roughnessmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Structure and mechanical properties of iron foil electrodeposited in super gravity field

Liu

Guo

Wang

et al. 2010

Surface and Coatings Technology

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“…73,74 The results demonstrated clear and significant centrifugal effects on the physical and chemical properties of the polymer films deposited on the anode surface. Subsequently, in this article, we wish to report that the electrochemical copolymerization ratio can be controlled by centrifugal force.…”

mentioning

confidence: 87%

Electrochemical Copolymerization of Aromatic Compounds in Centrifugal Fields

Murotani

Atobe

2005

J. Electrochem. Soc.

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Copolymer films of aniline with o-aminobenzonitrile were electrochemically synthesized under centrifugal acceleration ranging from 1 to ca. 300 g. The copolymerization ratio could be controlled by the applied gravitational force. In addition, the effect of the force exerted on the working electrode was found to be anisotropic. Similar trends could also be observed in the electrochemical copolymerizations of 2, 2Ј-bithiophene with pyrrole and N-methylpyrrole. A mechanism for the electrochemical deposition of the copolymers under centrifugal force has also been proposed.

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“…Significant progress has been achieved in recent years in the domain of electrochemical technology, such as pulse deposition, ultrasonic deposition, spray deposition and magneto electrolysis [1] , and preparation method of active electrode material has been improved in chlorine-alkali and aqueous solution electrolysis [2] . In summery, the basic route of these technologies for improving electrochemical processes is to enhance the mass transfer between electrode and electrolyte, which may result in improvement in the microstructure of deposited materials or decrease of the over-potential of electrode reaction.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical studies of nickel deposition from aqueous solution in super-gravity field

Guo

Gong

2007

SCI CHINA SER E

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The effect of super-gravity on electrochemical deposition of nickel from aqueous solution was studied. The SEM pictures show that the microstructure of nickel film deposited under the super-gravity condition is finer and more uniform compared with that obtained in normal gravity condition, and the crystal grains diminish with the increase of super-gravity coefficient. The XRD patterns indicate that the arrangement of crystalline grains of nickel film deposited under the super-gravity field is more regular, and the crystalline grain sizes decrease with the increase of super-gravity coefficient. Toughness, tensile stress and hardness of the nickel film are markedly raised with the increase of super-gravity coefficient, and hydrogen content in the nickel film decreases with the increase of super-gravity coefficient. From the polarization curves of hydrogen evolution reaction under the super-gravity condition, a significant reduction of over-potential on electrode was found when current density increased. The process of hydrogen evolution reaction was enhanced under the super-gravity condition. The electro-deposition rate, the microstructure and properties of deposited nickel film under super-gravity condition were still affected by the relative orientation between inertia force and depositing surface. It is favorable to gain the nickel film with better mechanic properties when inertia force orientates vertically towards depositing surface.

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Chemistry in centrifugal fields

Cited by 39 publications

References 15 publications

Structure and mechanical properties of iron foil electrodeposited in super gravity field

Structure and mechanical properties of iron foil electrodeposited in super gravity field

Electrochemical Copolymerization of Aromatic Compounds in Centrifugal Fields

Electrochemical studies of nickel deposition from aqueous solution in super-gravity field

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