Molybdenum-doped Pt₃Ni on carbon nanofibers as counter electrode for high-performance dye-sensitized solar cell

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• 作者：Ling Li^a ; Mingkun Wang^a ; Junying Xiao^a ; Huidong Sui^a ; Wenming Zhang^a ; ^{wmzhang@hbu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; ^{wmzhanghbu@126.com" class="auth_mail" title="E-mail the corresponding author} ; Xiaowei Li^a ; Kun Yang^a ; ^{yangkhbu@163.com" class="auth_mail" title="E-mail the corresponding author} ; Yucang Zhang^b ; ^{yczhang@hainu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Mingxing Wu^a ; ^c ; ^{mingxing.wu@hebtu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Dye-sensitized solar cells ; Counter electrodes ; Electrocatalytic activity ; Carbon nanofiber
• 刊名：Electrochimica Acta
• 出版年：2016
• 出版时间：20 November 2016
• 年：2016
• 卷：219
• 期：Complete
• 页码：350-355
• 全文大小：1933 K

文摘

Surface-doped Pt₃Ni on carbon nanofibers (Pt₃Ni/CN) with molybdenum (Mo-Pt₃Ni/CN) was used as counter electrode in dye-sensitized solar cells (DSSC) for the first time. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and Tafel polarization results indicate that Mo-Pt₃Ni/CN has a high electrocatalytic activity and facilitates rapid charge transfer. The power conversion efficiency (PCE) of the DSSCs with Mo-Pt₃Ni/CNs as counter electrode increased to 9.47%, which is significantly higher than the Pt counter electrode (7.1%), measured with simulated full solar intensity (AM1.5 G).