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Dive into the research topics where Cristian Fierro is active.

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Featured researches published by Cristian Fierro.


Journal of Power Sources | 1997

Enhanced nickel hydroxide positive electrode materials for alkaline rechargeable electrochemical cells

Stanford R. Ovshinsky; Michael A. Fetcenko; Cristian Fierro; P.R. Gifford; Dennis A. Corrigan; Peter Benson; Franklin J. Martin

A positive electrode material for use in electrochemical cells. This material comprises particles of positive electrode material including at least one electrochemically active hydroxide and a substantially continuous, uniform, encapsulant layer surrounding the particles of positive electrode material. The encapsulant layer is formed from a material which, upon oxidation during processing or during charging of the electrode, is convertible to a highly conductive form, and which, upon subsequent discharge of the electrode, does not revert to its previous form. Preferably, the electrochemically active hydroxide includes at least nickel hydroxide. The encapsulant layer is preferably formed from at least cobalt hydroxide or cobalt oxyhydroxide. This layer is formed on the particles of positive electrode material by precipitation from a cobalt salt solution, which can be a cobalt sulfate solution. Also disclosed are positive electrodes including the material and a precipitation method of forming the material.


The Journal of Physical Chemistry | 1987

In-situ Moessbauer study of redox processes in a composite hydroxide of iron and nickel

Dennis A. Corrigan; Robert S. Conell; Cristian Fierro; Daniel A. Scherson


Archive | 1996

A nickel battery electrode having multiple composition nickel hydroxide active materials

Dennis A. Corrigan; Cristian Fierro; Franklin J. Martin; Stanford R. Ovshinsky; Liwei Xu


Archive | 2001

Nickel hydroxide electrode material and method for making the same

Cristian Fierro; Michael A. Fetcenko; Stanford R. Ovshinsky; Dennis A. Corrigan; Beth Sommers; Avram Zallen


Archive | 1999

Nickel hydroxide positive electrode material exhibiting improved conductivity and engineered activation energy

Cristian Fierro; Michael A. Fetcenko; Kwo Young; Stanford R. Ovshinsky; Beth Sommers; Craig Harrison


Archive | 1994

Nickel metal hybride battery containing a modified disordered multiphase nickel hydroxide positive electrode

Stanford R. Ovshinsky; Dennis A. Corrigon; Peter Benson; Cristian Fierro


Archive | 1994

A disordered multiphase nickel hydroxide solid solution

Stanford R. Ovshinsky; Rosa Young; Dennis A. Corrigan; Michael A. Fetcenko; Cristian Fierro; Srinivasan Venkatesan


Archive | 2002

Method of making a nickel hydroxide material

Cristian Fierro; Michael A. Fetcenko; Beth Sommers; Avram Zallen; Gabriel E. Benet; Charles T. Walker


Langmuir | 1990

In situ Moessbauer spectroscopy of a species irreversibly adsorbed on an electrode surface

Cristian Fierro; Madan Mohan; Daniel A. Scherson


The Journal of Physical Chemistry | 1988

Ammonia adsorption on a model platinum(111) surface: a molecular orbital approach

Cristian Fierro

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Kwo Young

Energy Conversion Devices

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Rosa Young

Energy Conversion Devices

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Daniel A. Scherson

Case Western Reserve University

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Tim Hicks

University of Rochester

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William Mays

Energy Conversion Devices

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