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Papers by Hiten Kothari

Research paper thumbnail of Method of preparing a chiral substrate surface by electrodeposition

Research paper thumbnail of Enantiospecific catalysts prepared by chiral deposition

Research paper thumbnail of Electrochemical deposition and characterization of Fe3O4 films produced by the reduction of Fe(III)-triethanolamine

Journal of Materials Research - J MATER RES, 2006

In this paper, we demonstrate that films of magnetite, Fe3O4, can be deposited by the electrochem... more In this paper, we demonstrate that films of magnetite, Fe3O4, can be deposited by the electrochemical reduction of a Fe(III)-triethanolamine complex in aqueous alkaline solution. The films were deposited with a columnar microstructure and a (100) preferred orientation on stainless steel substrates. In-plane electrical transport and magnetoresistance measurements were performed on the films after they were stripped off onto glass substrates. The resistance of the films was dependent on the oxygen partial pressure. We attribute the increase in resistance in O2 and the decrease in resistance in Ar to the oxidation and reduction of grain boundaries. The decrease in resistance in an Ar atmosphere exhibited first-order kinetics, with an activation energy of 0.2 eV. The temperature dependence of the resistance showed a linear dependence of log(R) versus T �1/2, consistent with tunneling across resistive grain boundaries. A room-temperature magnetoresistance of �6.5% was observed at a magne...

Research paper thumbnail of Thermodynamic to Kinetic Transition in Epitaxial Electrodeposition

The Journal of Physical Chemistry B, 2002

... Bard, AJ; Faulkner, LR Electrochemical Methods; John ... Aligned 2-D Nanosheet Cu 2 O Film: O... more ... Bard, AJ; Faulkner, LR Electrochemical Methods; John ... Aligned 2-D Nanosheet Cu 2 O Film: Oriented Deposition on Cu Foil and Its Photoelectrochemical Property. ... Electrochemistry of Free Chlorine and Monochloramine and its Relevance to the Presence of Pb in Drinking Water. ...

Research paper thumbnail of Epitaxial Electrodeposition of Prussian Blue Thin Films on Single-Crystal Au(110)

Journal of the American Chemical Society, 2003

Research paper thumbnail of Epitaxial Growth of Cuprous Oxide Electrodeposited onto Semiconductor and Metal Substrates

Journal of the American Ceramic Society, 2005

Research paper thumbnail of Electrodeposition of Epitaxial Magnetite Films and Ferrihydrite Nanoribbons on Single-Crystal Gold

Chemistry of Materials, 2009

Epitaxial magnetite and ferrihydrite films are electrodeposited from an alkaline Fe (III)− TEA ba... more Epitaxial magnetite and ferrihydrite films are electrodeposited from an alkaline Fe (III)− TEA bath. Magnetite films on Au (111) and Au (001) are [111] oriented while on Au (110), they are [110] oriented. Nanoribbons of ferrihydrite are (112̅0) oriented on Au (110).

Research paper thumbnail of Epitaxial Electrodeposition of Pb−Tl−O Superlattices on Single-Crystal Au(100)

Chemistry of Materials, 2002

ABSTRACT

Research paper thumbnail of Electrochemical deposition and characterization of Cu2O nanowires

Research paper thumbnail of Enantiospecific Electrodeposition of Chiral CuO Films from Copper(II) Complexes of Tartaric and Amino Acids on Single-Crystal Au(001)

Chemistry of Materials, 2004

... Surface Chirality of CuO Thin Films. Roland Widmer, Franz-Josef Haug, Pascal Ruffieux, Oliver... more ... Surface Chirality of CuO Thin Films. Roland Widmer, Franz-Josef Haug, Pascal Ruffieux, Oliver Gröning, Michael Bielmann, Pierangelo Gröning, and Roman Fasel. Journal of the American Chemical Society 2006 128 (43), 14103-14108. Surface Chirality of CuO Thin Films. ...

Research paper thumbnail of Method of preparing a chiral substrate surface by electrodeposition

Research paper thumbnail of Enantiospecific catalysts prepared by chiral deposition

Research paper thumbnail of Electrochemical deposition and characterization of Fe3O4 films produced by the reduction of Fe(III)-triethanolamine

Journal of Materials Research - J MATER RES, 2006

In this paper, we demonstrate that films of magnetite, Fe3O4, can be deposited by the electrochem... more In this paper, we demonstrate that films of magnetite, Fe3O4, can be deposited by the electrochemical reduction of a Fe(III)-triethanolamine complex in aqueous alkaline solution. The films were deposited with a columnar microstructure and a (100) preferred orientation on stainless steel substrates. In-plane electrical transport and magnetoresistance measurements were performed on the films after they were stripped off onto glass substrates. The resistance of the films was dependent on the oxygen partial pressure. We attribute the increase in resistance in O2 and the decrease in resistance in Ar to the oxidation and reduction of grain boundaries. The decrease in resistance in an Ar atmosphere exhibited first-order kinetics, with an activation energy of 0.2 eV. The temperature dependence of the resistance showed a linear dependence of log(R) versus T �1/2, consistent with tunneling across resistive grain boundaries. A room-temperature magnetoresistance of �6.5% was observed at a magne...

Research paper thumbnail of Thermodynamic to Kinetic Transition in Epitaxial Electrodeposition

The Journal of Physical Chemistry B, 2002

... Bard, AJ; Faulkner, LR Electrochemical Methods; John ... Aligned 2-D Nanosheet Cu 2 O Film: O... more ... Bard, AJ; Faulkner, LR Electrochemical Methods; John ... Aligned 2-D Nanosheet Cu 2 O Film: Oriented Deposition on Cu Foil and Its Photoelectrochemical Property. ... Electrochemistry of Free Chlorine and Monochloramine and its Relevance to the Presence of Pb in Drinking Water. ...

Research paper thumbnail of Epitaxial Electrodeposition of Prussian Blue Thin Films on Single-Crystal Au(110)

Journal of the American Chemical Society, 2003

Research paper thumbnail of Epitaxial Growth of Cuprous Oxide Electrodeposited onto Semiconductor and Metal Substrates

Journal of the American Ceramic Society, 2005

Research paper thumbnail of Electrodeposition of Epitaxial Magnetite Films and Ferrihydrite Nanoribbons on Single-Crystal Gold

Chemistry of Materials, 2009

Epitaxial magnetite and ferrihydrite films are electrodeposited from an alkaline Fe (III)− TEA ba... more Epitaxial magnetite and ferrihydrite films are electrodeposited from an alkaline Fe (III)− TEA bath. Magnetite films on Au (111) and Au (001) are [111] oriented while on Au (110), they are [110] oriented. Nanoribbons of ferrihydrite are (112̅0) oriented on Au (110).

Research paper thumbnail of Epitaxial Electrodeposition of Pb−Tl−O Superlattices on Single-Crystal Au(100)

Chemistry of Materials, 2002

ABSTRACT

Research paper thumbnail of Electrochemical deposition and characterization of Cu2O nanowires

Research paper thumbnail of Enantiospecific Electrodeposition of Chiral CuO Films from Copper(II) Complexes of Tartaric and Amino Acids on Single-Crystal Au(001)

Chemistry of Materials, 2004

... Surface Chirality of CuO Thin Films. Roland Widmer, Franz-Josef Haug, Pascal Ruffieux, Oliver... more ... Surface Chirality of CuO Thin Films. Roland Widmer, Franz-Josef Haug, Pascal Ruffieux, Oliver Gröning, Michael Bielmann, Pierangelo Gröning, and Roman Fasel. Journal of the American Chemical Society 2006 128 (43), 14103-14108. Surface Chirality of CuO Thin Films. ...

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