Dodecylamine-mediated synthesis of caron-supported platinum-ruthenium alloy nanoparticles with ultrafine sizes towards high-efficiency methanol oxidation electrocatalysis

被引：0
|
作者：
Chu, Liang [1 ,2 ]
Rong, Zheng [1 ,2 ]
Ma, Mengyuan [3 ,4 ]
Guo, Feng [3 ]
Tian, Shaonan [3 ]
Yang, Jun [3 ,4 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Elect & Informat, Hangzhou 310018, Peoples R China
[2] Hangzhou Dianzi Univ, Inst Carbon Neutral & New Energy, Hangzhou 310018, Peoples R China
[3] Chinese Acad Sci, Inst Proc Engn, State Key Lab Mesosci & Engn, Beijing 100190, Peoples R China
[4] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL | 2025年 / 35卷 / 01期
基金：
中国国家自然科学基金;
关键词：
PtRu alloy nanoparticles; Ultrafine size; Methanol oxidation reaction; Dodecylamine-mediated extraction; Carbon substrate; PT-RU ELECTROCATALYSTS; FUEL-CELLS; HYDROGEN OXIDATION; CO TOLERANCE; PHASE-TRANSFER; AD-ATOMS; CATALYSTS; ENHANCEMENT; SURFACES;
D O I：
10.1016/j.pnsc.2024.12.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
For fully leveraging the advantages of PtRu alloys as electrocatalysts to catalyze methanol oxidation reaction (MOR), we herein report an ambient-temperature method for directly synthesizing carbon-supported PtRu alloy nanoparticles with ultrafine sizes in an organic medium towards high-efficiency MOR. This strategy involves the dodecylamine (DDA)-mediated extraction of Pt and Ru ions from water to toluene, and then mixing them with carbon substrate, followed by NaBH4 reduction in the same organic medium. Profiting from their ultrafine sizes of ca. 1.68 nm, the as-prepared PtRu nanoparticles supported on carbon substrate show a mass activity of 0.93 A mg-1 and a specific activity of 10.56 mA cm-2, respectively, both of which are much higher than those of the commercial PtRu/C catalyst.
引用
收藏
页码：215 / 221
页数：7
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