Porous body and fuel cell including the same
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United States of America Patent
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Sep 12, 2023
Grant Date -
Mar 30, 2023
app pub date -
Dec 24, 2019
filing date -
Dec 24, 2019
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Abstract
A porous body includes a framework having a three-dimensional network structure, the framework having a body including crystal grains including nickel and cobalt as constituent elements, the cobalt having a proportion in mass of 0.2 or more and 0.8 or less with respect to a total mass of the nickel and the cobalt, the crystal grains having a shorter grain diameter of 2 μm or more, as determined in a first observed image obtained by observing the body of the framework in cross section at a magnification of 200 times.
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