Amorphous/crystalline hetero-phase Pd nanosheets : one-pot synthesis and highly selective hydrogenation reaction

• Main Authors: Yang, Nailiang, Cheng, Hongfei, Liu, Xiaozhi, Yun, Qinbai, Chen, Ye, Li, Bing, Chen, Bo, Zhang, Zhicheng, Chen, Xiaoping, Lu, Qipeng, Huang, Jingtao, Huang, Ying, Zong, Yun, Yang, Yanhui, Gu, Lin, Zhang, Hua
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials; Amorphous; Catalysts
• Online Access: https://hdl.handle.net/10356/138733
• Institution: Nanyang Technological University

Similar to heterostructures composed of different materials, possessing unique properties due to the synergistic effect between different components, the crystal-phase heterostructures, one variety of hetero-phase structures, composed of different crystal phases in monometallic nanomaterials are herein developed, in order to explore crystal-phase-based applications. As novel hetero-phase structures, amorphous/crystalline heterostructures are highly desired, since they often exhibit unique properties, and hold promise in various applications, but these structures have rarely been studied in noble metals. Herein, via a one-pot wet-chemical method, a series of amorphous/crystalline hetero-phase Pd nanosheets is synthesized with different crystallinities for the catalytic 4-nitrostyrene hydrogenation. The chemoselectivity and activity can be fine-tuned by controlling the crystallinity of the as-synthesized Pd nanosheets. This work might pave the way to preparing various hetero-phase nanostructures for promising applications.