Carbon catalyst and process for production thereof, and electrode and battery each equipped with same
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United States of America Patent
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Apr 7, 2015
Grant Date -
Aug 22, 2013
app pub date -
Nov 1, 2011
filing date -
Nov 8, 2010
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Abstract
Provided is a carbon catalyst having an improved catalytic activity, a production method therefor, and an electrode and a battery which use the carbon catalyst. The carbon catalyst is obtained by carbonizing a raw material including an organic substance containing a nitrogen atom and metals, and includes iron and/or cobalt, and copper as the metals. Further, the carbon catalyst has a crystallinity of 41.0% or less, which is determined by X-ray diffractometry, a nitrogen atom-to-carbon atom ratio of 0.7 or more, which is determined by X-ray photoelectronic spectrometry, and an oxygen reduction-starting potential of 0.774 V (vs. NHE) or more.
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