JP6189197B2 - 炭素触媒及びその製造方法並びにこれを用いた電極及び電池 - Google Patents
炭素触媒及びその製造方法並びにこれを用いた電極及び電池 Download PDFInfo
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- JP6189197B2 JP6189197B2 JP2013249263A JP2013249263A JP6189197B2 JP 6189197 B2 JP6189197 B2 JP 6189197B2 JP 2013249263 A JP2013249263 A JP 2013249263A JP 2013249263 A JP2013249263 A JP 2013249263A JP 6189197 B2 JP6189197 B2 JP 6189197B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Description
[実施例1]
フラーレンスート(nanom black ST、フロンティアカーボン社製)と、フタロシアニン鉄(純度95%、東京化成工業株式会社)と、を当該フラーレンスートに対する当該フタロシアニン鉄に含まれる鉄の重量割合が3wt%になるように超純水中、ボールミルを用いて湿式混合を行った。得られた混合物を、孔径0.1μmのフィルターを用いて吸引ろ過し、溶媒である超純水を除去した。その後、混合物を60℃で一晩減圧乾燥することにより原料を得た。
次に、得られた原料の炭素化を行った。すなわち、原料0.3gをイメージ炉内、窒素雰囲気下で、昇温速度10℃/minにて昇温した。そして、原料を800℃で1時間保持することにより炭素化を行い、炭素化材料を得た。
[実施例2]
[実施例3]
[実施例4]
[実施例5]
[実施例6]
[実施例7]
[比較例1]
[比較例2]
[比較例3]
[比較例4]
[比較例5]
[比較例6]
上述の実施例1〜7、比較例1〜6で得られた炭素化材料各々について、酸素還元開始電位を測定した。
上述の実施例1〜7、比較例1〜6で得られた炭素触媒各々について、X線回折法による解析を行い、IFに対するIGの比を評価した。すなわち、X線回折装置(XRD−6100、SHIMADZU)を用いてX線回折測定を行った。X線管球への印加電圧及び電流はそれぞれ40kV及び30mAとし、サンプリング間隔は0.1°、走査速度は2.0°/分、測定角度範囲(2θ)は5〜40°とした。入射X線はCuKα線を用いた。
図3には、実施例1〜7、比較例1〜6において得られた炭素触媒を上述の方法で評価した結果を示す。すなわち、図3には、各実施例、各比較例で得られた炭素触媒について、当該炭素触媒の酸素還元開始電位(EO2)(V(vs.RHE))、当該炭素触媒のIG/IF比(−)を示す。
Claims (6)
- X線回折法において、回折角11.5°〜15.0°におけるピークの最大強度(IF)に対する、回折角18.0°〜26.5°におけるピークの最大強度(IG)の比(IG/IF)が、0.8以上、11以下を示す炭素構造、を有する
ことを特徴とする炭素触媒。 - 金属を含む
ことを特徴とする請求項1に記載の炭素触媒。 - 酸素還元開始電位が0.60V(vs.RHE)以上である
ことを特徴とする請求項1又は2に記載の炭素触媒。 - 請求項1乃至3のいずれかに記載された炭素触媒を含む
ことを特徴とする電極。 - 請求項4に記載された電極を含む
ことを特徴とする電池。 - フラーレンスートと、金属と、を含む原料を炭素化して炭素化材料を得ること、
前記炭素化材料を含む炭素触媒を得ること、
を含む、
ことを特徴とする炭素触媒の製造方法。
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