用于质子交换膜燃料电池的铂纳米颗粒还原氧化石墨烯纳米杂化物

Pt nanoparticle-reduced graphene oxide nanohybrid for proton exchange membrane fuel cells.

作者信息

Park Dae-Hwan, Jeon Yukwon, Ok Jinhee, Park Jooil, Yoon Seong-Ho, Choy Jin-Ho, Shul Yong-Gun

机构信息

Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, South Korea.

出版信息

J Nanosci Nanotechnol. 2012 Jul;12(7):5669-72. doi: 10.1166/jnn.2012.6350.

DOI:10.1166/jnn.2012.6350

PMID:22966630

Abstract

A platinum nanoparticle-reduced graphene oxide (Pt-RGO) nanohybrid for proton exchange membrane fuel cell (PEMFC) application was successfully prepared. The Pt nanoparticles (Pt NPs) were deposited onto chemically converted graphene nanosheets via ethylene glycol (EG) reduction. According to the powder X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) analysis, the face-centered cubic Pt NPs (3-5 nm in diameter) were homogeneously dispersed on the RGO nanosheets. The electrochemically active surface area and PEMFC power density of the Pt-RGO nanohybrid were determined to be 33.26 m2/g and 480 mW/cm2 (maximum values), respectively, at 75 degrees C and at a relative humidity (RH) of 100% in a single-cell test experiment.

摘要

成功制备了一种用于质子交换膜燃料电池（PEMFC）的铂纳米颗粒-还原氧化石墨烯（Pt-RGO）纳米杂化物。通过乙二醇（EG）还原将铂纳米颗粒（Pt NPs）沉积在化学转化的石墨烯纳米片上。根据粉末X射线衍射（XRD）图谱和透射电子显微镜（TEM）分析，面心立方Pt NPs（直径3-5 nm）均匀分散在RGO纳米片上。在单电池测试实验中，在75摄氏度和相对湿度（RH）为100%的条件下，Pt-RGO纳米杂化物的电化学活性表面积和PEMFC功率密度分别测定为33.26 m2/g和480 mW/cm2（最大值）。