| Autor: |
Lu, Minglei, Zheng, Zhuoyu, Lu, Weiwei, Zhu, Haiping, Liao, Junwei, Ge, Yuxin, Huang, Xueer, Zhang, Qian, Li, Jiajin, Zhou, Yiyuan, Wu, Xiaoping, Chen, Baozhu, Yang, Chunxiao, Qian, Xitang, Shao, Minhua, Wang, Tiejun |
| Zdroj: |
ACS Nano; September 2024, Vol. 18 Issue: 37 p25636-25646, 11p |
| Abstrakt: |
Aqueous-phase reforming of methanol represents a promising avenue for hydrogen (H2) production. However, developing highly efficient and low-cost nonprecious catalysts remains challenging. Here, we report the synthesis of Cu-based catalysts with Cu, Cu2O, and CuN3nanoparticles anchored on the nitrogen-doped carbon, forming Cu0/Cu+/Cu-N3active sites. This catalyst achieves a H2production rate of 140.1 μmol/gcat/s at 210 °C, which is several times to 2 orders of magnitude higher than that of Cu-, Ni-, even Pt-based catalysts, demonstrating excellent long-term stability over 350 h at 210 °C. A mechanism investigation reveals that the Cu-N3site facilitates water dissociation into *OH and improves *CO and *OH conversion, leading to enhanced CO conversion and H2production kinetics. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
