Low-cost Cr doped Pt3Ni alloy supported on carbon nanofibers composites counter electrode for efficient dye-sensitized solar cells
Low-cost Cr doped Pt3Ni alloy supported on carbon nanofibers composites counter electrode for efficient dye-sensitized solar cells
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DOI：
10.1016/j.jpowsour.2016.08.062
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发表时间：
2016-10
影响因子：
9.2
通讯作者：
Junying Xiao;Midou Cui;Mingkun Wang;H. Sui;Kun Yang;Ling Li;Wenming Zhang;Xiaowei Li;
中科院分区：
文献类型：
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作者：
Junying Xiao;Midou Cui;Mingkun Wang;H. Sui;Kun Yang;Ling Li;Wenming Zhang;Xiaowei Li;
首次将采用简单溶剂热法合成的碳纳米纤维（CNs）复合材料（Pt3Ni/CNs）作为对电极（CE）应用于染料敏化太阳能电池（dsc）中，获得了8.34%的功率转换效率（PCE）。为了提高Pt3Ni/CNs复合材料的催化活性，在Pt3Ni/CNs中掺杂过渡金属铬（Cr），采用相同的方法合成Cr-Pt3Ni/CNs复合材料。由于具有较高的电催化活性和快速的电荷转移能力，采用Cr-Pt3Ni/CNs作为CE的dsc的PCE提高到8.76%，远高于相同条件下Pt CE的7.04%。这些令人印象深刻的结果以及低成本和简单的合成工艺表明，过渡金属掺杂是一种很有前途的方法来生产Pt替代品，以降低成本和提高dsc的PCE。
Pt3Ni alloy supported by carbon nanofibers (CNs) composites (Pt3Ni/CNs) synthesized by a simple solvothermal process was introduced into dye-sensitized solar cells (DSCs) as counter electrode (CE) for the first time, and the DSCs based on Pt3Ni/CNs CE obtained a power conversion efficiency (PCE) of 8.34%. To enhance the catalytic activity of Pt3Ni/CNs composites, transition metal chrome (Cr) was doped in Pt3Ni/CNs to synthesize the composites of Cr-Pt3Ni/CNs using the same method. Due to the high electrocatalytic activity and rapid charge transfer ability, the PCE of the DSCs employing Cr-Pt3Ni/CNs as CE increased to 8.76%, which was much higher than that of Pt CE (7.04%) measured in the same condition. The impressive results along with low cost and simple synthesis process demonstrated transition metal doping was a promising method to produce substitutes for Pt to reduce the cost and increase the PCE of DSCs.