Suppression of Pt Nanocluster Aggregation and Enhanced Oxygen Reduction Activity by Heteroatom Doping of Carbon Nanotubes

被引：1
|
作者：
Haque, Md. Ahsanul [1 ,2 ]
Kurosaki, Ryuki [1 ]
Oiwa, Kazutaka [1 ]
Ikeda, Kaoru [1 ]
Sato, Kotaro [1 ]
Nishi, Naoki [1 ]
Tachibana, Haruna [1 ]
Kawawaki, Tokuhisa [1 ,3 ]
Negishi, Yuichi [1 ,3 ,4 ]
机构：
[1] Tokyo Univ Sci, Fac Sci, Dept Appl Chem, Tokyo 1628601, Japan
[2] Islamic Univ, Fac Engn & Technol, Dept Appl Chem & Chem Engn, Kushtia 7003, Bangladesh
[3] Tokyo Univ Sci, Res Inst Sci & Technol, Noda, Chiba 2788510, Japan
[4] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai 9808577, Japan
来源：
ACS APPLIED ENERGY MATERIALS | 2024年 / 7卷 / 22期
基金：
日本学术振兴会;
关键词：
Pt nanocluster; platinum; oxygenreductionreaction; carbon nanotube; catalysts; sulfurdoping; nitrogen doping; NITROGEN-DOPED CARBON; GRAPHENE OXIDE; CATALYST SUPPORT; HIGHLY EFFICIENT; MASS ACTIVITY; PLATINUM; SULFUR; PERFORMANCE; ELECTROCATALYSTS; NANOPARTICLES;
D O I：
10.1021/acsaem.4c01742
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Increasing the performance of platinum (Pt) catalysts for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells could reduce the amount of this expensive metal that is required. Pt nanoclusters (NCs) can provide substantially increased ORR activity per unit mass of Pt and so are of interest. However, there has been no research regarding supports for Pt NCs exhibiting both high specific surface area and high conductivity. The present work improved the ORR activity and durability of carbon nanotubes by doping with nitrogen or sulfur to reduce the level of aggregation of supported Pt NCs. Pt NCs supported on sulfur-doped carbon nanotubes showed 2.32 times higher activity (425.2 A/gPt) and greater durability compared with those of commercially supported Pt nanoparticle catalysts.
引用
收藏
页码：10317 / 10325
页数：9
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