Toward the Theoretical Capacitance of RuO 2  Reinforced by Highly Conductive Nanoporous Gold | Zendy

Chen L. Y. | Zendy; Hou Y. | Zendy; Kang J. L. | Zendy; Hirata A. | Zendy; Fujita T. | Zendy; Chen M. W. | Zendy

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Toward the Theoretical Capacitance of RuO 2 Reinforced by Highly Conductive Nanoporous Gold

Author(s) -

Chen L. Y.,

Hou Y.,

Kang J. L.,

Hirata A.,

Fujita T.,

Chen M. W.

Publication year - 2013

Publication title -

advanced energy materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.08

H-Index - 220

eISSN - 1614-6840

pISSN - 1614-6832

DOI - 10.1002/aenm.201300024

Subject(s) - nanoporous , materials science , capacitance , ruthenium oxide , electrical conductor , capacitive sensing , electrode , ionic bonding , oxide , proton , nanotechnology , optoelectronics , ion , chemical engineering , electrochemistry , composite material , electrical engineering , chemistry , metallurgy , organic chemistry , physics , engineering , quantum mechanics

The experimental specific capacitance of ruthenium oxide (RuO 2 ) is usually much smaller than the theoretical value due to low electron–proton transport and high rate dependence. Highly conductive nanoporous gold (NPG) can dramatically improve the capacitive performance of RuO 2 when RuO 2 is electroplated into NPG. The RuO 2 @NPG electrodes provide fast ionic conduction and excellent electron–proton transport for low rate dependence and high charge storage of around 1500 F g −1 , close to the theoretical value of RuO 2 .

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