We report an inexpensive fabrication route of a mesoporous counter electrode made of chain-like Pt nanoparticles using a tubular halloysite clay template. The pre-coated halloysite tubes (HTs) on a conducting substrate act as a material synthesising platform for a highly interconnected chain-like Pt nanostructure. The Pt-HT composite counter electrode shows effective electrolyte interaction and high catalytic activity towards tri-iodide reduction. As a result, Pt-HT counter electrode based dye-sensitised solar cells exhibit a higher energy conversion efficiency of 9.5% compared to the flat-type Pt film based counter electrode (8.2%) using liquid-type electrolyte.

中文翻译：

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使用管状埃洛石粘土模板合成链状，相互连接的Pt纳米颗粒，可用于染料敏化太阳能电池中的高效对电极†

我们报告了使用管状埃洛石粘土模板由链状Pt纳米粒子制成的介孔对电极的廉价制造路线。导电基材上的预涂埃洛石管（HTs）用作高度互连的链状Pt纳米结构的材料合成平台。Pt-HT复合对电极显示出有效的电解质相互作用和对三碘化物还原的高催化活性。结果，与使用液体型电解质的平面型基于Pt膜的对电极（8.2％）相比，基于Pt-HT对电极的染料敏化太阳能电池表现出9.5％的更高的能量转换效率。