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
学科:材料学
2018-10-09 我最喜爱的老师
2019-09-13 校级优秀班主任
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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
期号:
是否译文:否