嵌段共聚物自组装制备低载铂量PEMFC电极纳米催化材料

王志达; 甘  源; 侯  磊; 闫常峰

doi:10.3969/j.issn.2095-560X.2017.05.003

新能源进展 >

2017 , Vol. 5 >Issue 5: 341 - 345

DOI: https://doi.org/10.3969/j.issn.2095-560X.2017.05.003

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嵌段共聚物自组装制备低载铂量PEMFC电极纳米催化材料

王志达 ,
甘源 ,
侯磊 ,
闫常峰

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1. 中国科学院广州能源研究所，广州 510640；
2. 中国科学院可再生能源重点实验室，广州 510640；
3. 广东省新能源和可再生能源研究开发与应用重点实验室，广州 510640；
4. 中国科学院大学，北京 100049

王志达（1979-），男，博士，副研究员，主要从事纳米材料研发和燃料电池系统设计。

收稿日期: 2017-09-06

修回日期: 2017-09-28

网络出版日期: 2017-10-30

基金资助

国家自然科学基金项目（51576201）；
广东省自然科学基金项目（2015A030312007，2015A030313716）；
广州市科技项目（2013B050800007）；
中国科学院可再生能源重点实验室项目（Y609JK1001）

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Fabrication of Low-Loading Pt Nanomaterials for PEMFC Electrocatalysts from Self-Assembly of Block Copolymer

WANG Zhi-da ,
GAN Yuan ,
HOU Lei ,
YAN Chang-feng

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1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
2. CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China;
3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2017-09-06

Revised date: 2017-09-28

Online published: 2017-10-30

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摘要

质子交换膜燃料电池（PEMFC）催化电极材料的制备方法是当今能源科学研究的热点之一。其中，嵌段共聚物自组装技术因操作简单和结构可控而倍受关注。本文以PS-b-P4VP嵌段共聚物自组装形成的有机纳米膜结构为模版，探讨了铂（Pt）纳米阵列的制备，并测试了其催化效率。结果表明，本方法制备的Pt阵列均匀有序，电化学活性面积为131.97 m2/g，而Pt消耗仅为商业化标准的6%左右，从而在保持催化活性的同时，提高了Pt的利用率和催化效率。

关键词： 嵌段共聚物; 自组装; 铂纳米粒子; 燃料电池

本文引用格式

王志达 , 甘源 , 侯磊 , 闫常峰 . 嵌段共聚物自组装制备低载铂量PEMFC电极纳米催化材料[J]. 新能源进展, 2017 , 5(5) : 341 -345 . DOI: 10.3969/j.issn.2095-560X.2017.05.003

Abstract

Recently, researches have been increasingly devoted to the nanomaterials of proton exchange membrane fuel cell (PEMFC) electrocatalysts for their unique nanoscale surface effects. As one of the most important methodologies of material preparations, self-assembly of block copolymers (BCs) stands out with its inherent ability to form complex nanostructures. Herein, a simple but robust fabrication of Pt nanoparticles (NPs) assisted by self-assembly of PS-b-P4VP BC template on silicon wafers was introduced. The as-prepared Pt electrocatalyst showed high order and high EASA value of 131.97 m2/g with a low loading of about 6wt% of the standard commercial PEMFC Pt-cost. This work supplied a precise control for the increase of catalytic ability and Pt utilization.

Key words： block copolymer; elf-assembly; Platinum nanoparticles; fuel cell

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