青岛科技大学  English 
陈英杰
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教师拼音名称:chenyingjie

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毕业院校:中国科学院海洋研究所

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材料学

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2018-10-09 我最喜爱的老师

2019-09-13 校级优秀班主任

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Heterogeneous FeNi3/NiFe2O4 nanoparticles with modified graphene as electrocatalysts for high performance dye-sensitized solar cells

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摘要:The development of low cost electrocatalysts with excellent I-/I-3(-) redox reaction efficiency is critically important for practical applications of dye-sensitized solar cells (DSSCs). Nevertheless, it is difficult to simultaneously improve the activity and stability of catalysts. Herein, heterogeneous FeNi3/NiFe2O4 nanoparticles are successfully embedded in modified graphene (mGr) matrix with network structure. As-prepared FeNi3/NiFe2O4@mGr shows excellent electrocatalytic activities and high stability. The DSSCs with FeNi3/NiFe2O4@mGr as counter electrodes demonstrate a high power conversion efficiency of 12.14%, which is superior to that of platinum (Pt, 8.31%). Also, the FeNi3/NiFe2O4@mGr device remains 90% efficiency up to 42 days under ambient conditions without encapsulation. Therefore, the FeNi3/NiFe2O4@mGr composite can be further developed as an environmentally friendly, inexpensive, and efficient counter electrode material for DSSCs.

卷号:405

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