燃料電池用白金電極触媒におけるグラフェンの担体効果

  • 中村 潤児
    筑波大学数理物質系 学際物質科学研究センター

書誌事項

タイトル別名
  • The effect of a graphene support on the properties of Pt electrode catalysts in fuel cells
  • ネンリョウ デンチヨウ ハッキン デンキョク ショクバイ ニ オケル グラフェン ノ タンタイ コウカ

この論文をさがす

抄録

The use of graphene as a catalyst support for Pt in fuel cells is reviewed. Sub-nano Pt clusters can be prepared on graphene with an electrochemical surface area of 170 m2/g. For such small Pt clusters on graphene, significant improvements in catalytic activity have been observed for the electro-oxidation of CO or methanol, indicating that the graphene support has an effect on the properties of the Pt catalyst. The Pt clusters interact with graphene, resulting in a modification of Pt in terms of electronic structure. The interaction between Pt and graphene is ascribed to π-d hybridization. The reactivity of graphene with molecules or metal clusters is also discussed, in which we propose that non-bonding pz states are responsible for the reactivity.

収録刊行物

  • 炭素

    炭素 2014 (265), 177-186, 2014

    炭素材料学会

参考文献 (29)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ