A series of non‐noble Cu–Ni bimetallic catalysts is prepared with different molar proportions of metals. Of these bimetallic catalysts, 1 wt% is subsequently integrated with titania P25. The catalysts are evaluated for solar hydrogen generation under 1 sun condition in both the powder and thin film forms. All the photocatalysts in the thin film exhibit an 8–24 times higher hydrogen yield (HY) compared with the corresponding particulate counterpart. The highest HY (41.7 mmol h⁻¹ g⁻¹) is demonstrated for the photocatalyst Cu–Ni/TiO₂ (CNT; 1:1 = Cu:Ni) in the thin film form, which is 24 times higher than that with its powder counterpart (1.75 mmol h⁻¹ g⁻¹) and exceeds the performance of other Cu–Ni/TiO₂ compositions. This enhanced activity in the thin film can be ascribed to improved absorption of visible light and an effective separation of photogenerated charge carriers at the interface of Cu–Ni/TiO₂ leading to better charge carrier utilization.

中文翻译：

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Cu-Ni双金属集成的TiO2薄膜用于增强太阳能发电

用不同摩尔比例的金属制备了一系列非贵金属的Cu-Ni双金属催化剂。这些双金属催化剂中，随后将1重量％与二氧化钛P25结合。评价催化剂在粉末和薄膜形式下在1个阳光条件下的太阳能产生氢。与相应的微粒催化剂相比，薄膜中的所有光催化剂均具有高8-24倍的氢产率（HY）。薄膜形式的光催化剂Cu–Ni / TiO ₂（CNT; 1：1 = Cu：Ni）表现出最高的HY（41.7 mmol h ^-1  g ^-1），是其HY的最高HY（41.7 mmol h ^-1 g ^-1）。粉末对应物（1.75 mmol h ^-1  g ^-1），超过了其他Cu-Ni / TiO的性能₂组成。薄膜中这种增强的活性可以归因于改善的可见光吸收以及在Cu-Ni / TiO ₂界面处有效分离了光生载流子，从而提高了载流子的利用率。