Low surface area carbon black as PEMFC catalyst support: heat treatment effect on the physical and electrocatalytic properties

IF 3.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Science Pub Date : 2024-12-21 DOI:10.1007/s10853-024-10531-9

Ayşenur Öztürk Aydın, Ayşe Bayrakçeken

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Abstract

The low surface area carbon black (Regal 330) underwent heat treatment in a nitrogen environment at varying temperatures (1000, 1200, 1400, and 1500 °C). Both original and heat-treated Regal carbon blacks served as support material for the platinum (Pt) catalyst in the polymer electrolyte membrane (PEM) fuel cell. Comprehensive physical and chemical characterizations of carbon blacks and Pt catalysts were performed using BET, FTIR, Raman spectroscopy, XRD, SEM, TEM, XPS (C 1s), ICP-MS, zeta potential, contact angle, and 3D topography analyses. The catalysts were characterized electrochemically using a three-electrode system and a PEM fuel cell testing station. For the oxygen reduction reaction (ORR), the Pt/R-14 showed a limiting diffusion current density of 2.827 mA cm⁻² (@1600 rpm). The PEM fuel cell testing station yields the best results with the same catalyst. At 0.6 V and 0.1 V retention potentials, Pt/R-14’s current and power density values (@0.6 V) were 537.0 mA cm⁻² and 321.1 mW cm⁻² and 642.6 mA cm⁻² and 384.3 mW cm⁻², respectively. The results of heat-treated Regal carbon blacks were superior to those of the original case. This study uniquely applies Regal carbon black and its heat-treated forms to a PEM fuel cell as catalyst support material.

Graphical abstract

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低表面积炭黑作为PEMFC催化剂载体：热处理对物理和电催化性能的影响

低表面积炭黑（Regal 330）在不同温度（1000、1200、1400和1500°C）的氮气环境中进行热处理。在聚合物电解质膜（PEM）燃料电池中，原始炭黑和热处理的Regal炭黑均可作为铂（Pt）催化剂的支撑材料。采用BET、FTIR、拉曼光谱、XRD、SEM、TEM、XPS （c1s）、ICP-MS、zeta电位、接触角和三维形貌分析对炭黑和Pt催化剂进行了全面的物理化学表征。采用三电极系统和PEM燃料电池试验站对催化剂进行了电化学表征。对于氧还原反应（ORR）， Pt/R-14的极限扩散电流密度为2.827 mA cm−2 （@1600 rpm）。质子交换膜燃料电池试验站使用相同的催化剂，结果最好。在0.6 V和0.1 V保持电位下，Pt/R-14的电流和功率密度值（@0.6 V）分别为537.0 mA cm - 2和321.1 mW cm - 2, 642.6 mA cm - 2和384.3 mW cm - 2。热处理后的Regal炭黑的性能优于原始炭黑。本研究独特地将Regal炭黑及其热处理形式应用于PEM燃料电池作为催化剂支撑材料。图形抽象

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来源期刊

Journal of Materials Science 工程技术-材料科学：综合

CiteScore

7.90

自引率

4.40%

发文量

1297

审稿时长

2.4 months

期刊介绍： The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.