Temperature Influence on the Synthesis of Pt/C Catalysts for Polymer Electrolyte Membrane Fuel Cells

被引：0

作者：

Kim, Gayoung ^{[1
,2
]}

Lee, Dong-Hyun ^{[1
]}

Park, Gyungse ^{[3
]}

Sun, Ho-Jung ^{[4
]}

Kim, In-Tae ^{[5
]}

Park, Sehkyu ^{[2
]}

Rim, Hyung-Ryul ^{[6
]}

Lee, Hong-Ki ^{[6
]}

Shim, Joongpyo ^{[1
]}

机构：

[1] Kunsan Natl Univ, Dept Chem Engn, Gunsan 54150, South Korea

[2] Kwangwoon Univ, Dept Chem Engn, Seoul 01897, South Korea

[3] Kunsan Natl Univ, Dept Chem, Jeonbuk 54150, South Korea

[4] Kunsan Natl Univ, Dept Mat Sci & Engn, Kunsan 54150, South Korea

[5] Sungeel Himet, Jeonbuk 54002, South Korea

[6] Woosuk Univ, Fuel Cell Reg Innovat Ctr, Jeonbuk 55315, South Korea

来源：

CATALYSTS | 2024年 / 14卷 / 09期

关键词：

PEMFC; polyol method; Pt/C catalyst; temperature control; ethylene glycol; OXYGEN REDUCTION REACTION; PARTICLE-SIZE; NANOPARTICLES; DURABILITY;

D O I：

10.3390/catal14090577

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：

To reduce the manufacturing cost of polymer electrolyte membrane fuel cells (PEMFCs), tests targeting the decrease of reaction temperature and the amount of reducing agent in the polyol method for the synthesis of Pt/C catalysts were conducted. The reaction temperature in the polyol method was changed from 50 to 160 degrees C. Through XRD and TGA, it was determined that the reduction of platinum ions by the oxidation of ethylene glycol started at 70 degrees C. Below a 60 degrees C reaction temperature, Pt (1 1 1) peaks in XRD were barely visible, indicating that no deposition occurred. TEM revealed that Pt particles were well-dispersed above a 100 degrees C reaction temperature. For manufacturing platinum catalysts using the polyol method, it was found that 100 degrees C is the optimal synthesis temperature. Additionally, it was found that similar performance can be achieved by adding water to decrease the amount of ethylene glycol during synthesis. Finally, considering various analyses, it is evident that the dispersion, size, and crystallinity of platinum particles had the most significant impact on performance.

引用

页数：9

共 29 条

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