An efficient and robust p-type NiO/Cu₂O nanocomposite was developed as photocathodic catalyst of a photoelectrochemical cell. The nanocomposite with heterojunction demonstrates enhanced photoelectrochemical (PEC) properties and considerable photocatalytic hydrogen generation ability. When ca. 6 wt. % Cu₂O was loaded on the surface of NiO, the sample exhibited the highest photocatalytic activity. The amount of hydrogen evolved from the cathodic chamber of the PEC cell up to 17.6 μmol under 2 h simulated sunlight irradiation with -0.0455 V vs. RHE (reversible hydrogen electrode) bias.

中文翻译：

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高性能p型氧化镍/氧化亚铜纳米复合材料，具有异质结作为光阴极催化剂，用于水分解产生氢气

开发了一种高效且坚固的p型NiO / Cu ₂ O纳米复合材料，作为光电化学电池的光阴极催化剂。具有异质结的纳米复合材料表现出增强的光电化学（PEC）性能和相当大的光催化制氢能力。当ca。6重量 将％Cu ₂ O负载在NiO的表面上，样品表现出最高的光催化活性。在-0.0455 V对RHE（可逆氢电极）偏压下模拟阳光照射下2 h，从PEC电池的阴极腔室放出的氢气量高达17.6μmol。