logaとは 意味・読み方・使い方

An oxygen-reducible catalyst is obtained by depositing a macrocyclic organic compound such as phthalocyanine and porphyrin having an ability to reduce oxygen on an electrically conductive carrier and satisfies the inequality: -0.5≤logA≤1 (wherein A is the ratio of the area to be covered with the macrocyclic organic compound having the ability to reduce oxygen to the surface area of the electrically conductive carrier).例文帳に追加

フタロシアニンやポルフィリン等の酸素還元能を有する大環状有機化合物を導電性担体に担持させた酸素還元触媒であって、次式：Ａ＝酸素還元能を有する大環状有機化合物の被覆面積／導電性担体の表面積で定義されるＡが、−０．５≦ｌｏｇＡ≦１の範囲にあることを特徴とする前記酸素還元触媒。 - 特許庁