Low platinum loading PtNPs/graphene composite catalyst with high electrocatalytic activity for dye-sensitized solar cells

Platinum nanoparticles （PtNPs）/graphene composite materials are synthesized by a controlled chemical reduction of H2PtC16 on graphene sheets. The electrocatalytic activity of a PtNPs/graphene composite counter electrode for a dye-sensitized solar cell （DSSC） is investigated. The results demonstrate...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics B 2012-11, Vol.21 (11), p.490-494
Main Author: 李萍剑 程凯 陈远富 王泽高 郝昕 刘竞博 贺加瑞 张万里
Format: Article
Language:English
Subjects:
Conversion
Dyes
Electrodes
Graphene
Nanoparticles
Photovoltaic cells
Platinum
Solar cells
催化剂
对电极
染料敏化太阳能电池
电催化活性
石墨复合材料
石墨薄片
转换效率
铂金
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Platinum nanoparticles （PtNPs）/graphene composite materials are synthesized by a controlled chemical reduction of H2PtC16 on graphene sheets. The electrocatalytic activity of a PtNPs/graphene composite counter electrode for a dye-sensitized solar cell （DSSC） is investigated. The results demonstrate that the PtNPs/graphene composite has high electrocatalytic activity for the dye-sensitized solar cell. The cell employing PtNPs （1.6 wt%）/graphene counter electrode reaches an conversion efficiency （η） of 3.89% upon the excitation of 100 mW/cm2 AM 1.5 white light, which is comparable to that of the cell with a Pt-film counter electrode （7 = 3.76%）. It suggests that one can use only 14% Pt content of the conventional Pt-film counter electrode to obtain a comparable conversion efficiency. It may be possible to obtain a high performance DSSC using the PtNPs/graphene composite with a very low Pt content as a counter electrode due to its simplicity, low cost, and large scalability.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/11/118101