Zhen Chao, Chen Xiangtao, Chen Ruotian, Fan Fengtao, Xu Xiaoxiang, Kang Yuyang, Guo Jingdong, Wang Lianzhou, Lu Gao Qing Max, Domen Kazunari, Cheng Hui-Ming, Liu Gang
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang, Liaoning, 110819, China.
Nat Commun. 2024 Feb 23;15(1):1672. doi: 10.1038/s41467-024-46073-6.
The practical applications of solar-driven water splitting pivot on significant advances that enable scalable production of robust photoactive films. Here, we propose a proof-of-concept for fabricating robust photoactive films by a particle-implanting technique (PiP) which embeds semiconductor photoabsorbers in the liquid metal. The strong semiconductor/metal interaction enables resulting films efficient collection of photogenerated charges and superior photoactivity. A photoanode of liquid-metal embraced BiVO can stably operate over 120 h and retain ~ 70% of activity when scaled from 1 to 64 cm. Furthermore, a Z-scheme photocatalyst film of liquid-metal embraced BiVO and Rh-doped SrTiO particles can drive overall water splitting under visible light, delivering an activity 2.9 times higher than that of the control film with gold support and a 110 h stability. These results demonstrate the advantages of the PiP technique in constructing robust and efficient photoactive films for artificial photosynthesis.
太阳能驱动水分解的实际应用取决于能否取得重大进展，从而实现可扩展地生产坚固的光活性薄膜。在此，我们提出了一种通过粒子植入技术（PiP）制造坚固光活性薄膜的概念验证，该技术将半导体光吸收体嵌入液态金属中。强大的半导体/金属相互作用使所得薄膜能够高效收集光生电荷并具有卓越的光活性。液态金属包裹的BiVO光阳极可以稳定运行超过120小时，当尺寸从1平方厘米扩大到64平方厘米时，仍能保持约70%的活性。此外，液态金属包裹的BiVO和Rh掺杂的SrTiO粒子组成的Z型光催化剂薄膜可以在可见光下驱动整体水分解，其活性比有金支撑的对照薄膜高2.9倍，且具有110小时的稳定性。这些结果证明了粒子植入技术在构建用于人工光合作用的坚固且高效的光活性薄膜方面的优势。
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