Stable Cu/Cu 2 O/CuN 3 @NC Catalysts for Aqueous Phase Reforming of Methanol

Aqueous-phase reforming of methanol represents a promising avenue for hydrogen (H ) production. However, developing highly efficient and low-cost nonprecious catalysts remains challenging. Here, we report the synthesis of Cu-based catalysts with Cu, Cu O, and CuN nanoparticles anchored on the nitrog...

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Published in:ACS nano 2024-09, Vol.18 (37), p.25636
Main Authors: 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
Format: Article
Language:English
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Summary:Aqueous-phase reforming of methanol represents a promising avenue for hydrogen (H ) production. However, developing highly efficient and low-cost nonprecious catalysts remains challenging. Here, we report the synthesis of Cu-based catalysts with Cu, Cu O, and CuN nanoparticles anchored on the nitrogen-doped carbon, forming Cu /Cu /Cu-N active sites. This catalyst achieves a H production rate of 140.1 μmol/g /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-N site facilitates water dissociation into *OH and improves *CO and *OH conversion, leading to enhanced CO conversion and H production kinetics.
ISSN:1936-0851
1936-086X
DOI:10.1021/acsnano.4c07386