Oxygen reduction reaction mechanism of silk-derived activated carbon as a metal free non-platinum catalyst

丝源活性炭作为无金属非铂催化剂的氧还原反应机理

• 批准号: 23560932
• 负责人: FUKUNAGA Hiroshi
• 金额: $ 3.49万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560932/
• 关键词: 固体高分子形燃料電池; 非白金炭素系触媒; 酸素還元活性

Silk-derived activated carbon (SAC) was studied as a metal free, non-platinum catalyst. The effect of nitrogen species and surface area of SAC on oxygen reduction reaction (ORR) activity was studied. SAC was prepared by carbonized and activated by steam or carbon dioxide.By activating SAC, pyridine-like and pyrolle-like nitrogen decreased, while graphite-like nitrogen showed small change. Catalytic activity toward ORR was measured by linear sweep voltammograms (LSV). ORR activity increased by activation treatment. The specific ORR current of SAC normalized by mesopore volume was nearly equal, indicating that ORR current is dominated by the process in the mesopore. Onset potential of ORR was influenced not by surface area, but by the graphite-like nitrogen for high temperature carbnizatin.

研究了丝源活性炭（SAC）作为无金属、非铂催化剂。研究了氮物种和SAC比表面积对氧还原反应（ORR）活性的影响。采用水蒸气法和二氧化碳法分别对SAC进行活化，活化后类吡啶氮和类吡咯氮减少，类石墨氮变化不大。通过线性扫描伏安图（LSV）测量对ORR的催化活性。 经活化处理后ORR活性增加。通过中孔体积归一化的SAC的比ORR电流几乎相等，表明ORR电流由中孔中的过程主导。氧化还原反应的起始电位不受比表面积的影响，而受高温渗碳所需的类石墨氮的影响。

项目成果

PEFCカソード用非白金触媒としてのシルク活性炭の賦活と酸素還元活性の関係

PEFC阴极非铂催化剂丝活性炭活化与氧还原活性的关系

• 发表时间: 2013
• 作者: 福長博;服部洋輔;服部義之;高橋伸英;高塚透
• 通讯作者: 高塚透

PEFCカソード用非白金触媒としてのシルク活性炭の賦活処理と酸素還元活性

PEFC阴极非铂催化剂丝活性炭的活化处理及氧还原活性

• 发表时间: 2014
• 作者: 福長博;深谷仁;嶋田五百里;高橋伸英;高塚透;服部義之
• 通讯作者: 服部義之

Effect of Surface Area on Oxygen Reduction Reaction of Silk-Derived Activated Carbon as PEFC Cathode

表面积对丝源活性炭作为PEFC正极氧还原反应的影响

• 发表时间: 2014
• 作者: Hiroshi Fukunaga;Jin Fukaya;Yoshiyuki Hattori;Iori Shimada;Nobuhide Takahashi;Toru Takatsuka
• 通讯作者: Toru Takatsuka

固体高分子形燃料電池のカソード用非白金触媒としてのシルク活性炭の窒素種及び微細構造と酸素還元活性

丝活性炭作为聚合物电解质燃料电池阴极非铂催化剂的氮形态、微观结构和氧还原活性

• 发表时间: 2012
• 作者: 福長博;下山拓也;高橋伸英;高塚透;岸本比呂志
• 通讯作者: 岸本比呂志

Evaluation of Nitrogen Species and Microstructre of Silk-Derived Activated Carbon as Non-Precious Metal Catalyst for PEFC Cathode

PEFC阴极非贵金属催化剂丝源活性炭氮形态和微观结构评价

• 发表时间: 2012
• 作者: Hiroshi Fukunaga;Takuya Shimoyama;Nobuhide Takahashi;Toru Takatsuka;Hiroshi Kishimoto
• 通讯作者: Hiroshi Kishimoto