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

Aqueous-phase reforming of methanol represents a promising avenue for hydrogen (H<sub>2</sub>) production. However, developing highly efficient and low-cost nonprecious catalysts remains challenging. Here, we report the synthesis of Cu-based catalysts with Cu, Cu<sub>2</sub>O, and CuN<sub>3</sub> nanoparticles anchored on the nitrogen-doped carbon, forming Cu<sup>0</sup>/Cu<sup>+</sup>/Cu-N<sub>3</sub> active sites. This catalyst achieves a H<sub>2</sub> production rate of 140.1 μmol/g<sub>cat</sub>/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<sub>3</sub> site facilitates water dissociation into *OH and improves *CO and *OH conversion, leading to enhanced CO conversion and H<sub>2</sub> production kinetics.

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Publication Details

Journal
ACS Nano
Published
2024-09-05
DOI
https://doi.org/10.1021/acsnano.4c07386
Citations
24
Primary Topic
Catalytic Processes in Materials Science
Type
article
Field-Weighted Citation Impact
2.81

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article

Stable Cu/Cu2O/CuN3@NC Catalysts for Aqueous Phase Reforming of Methanol

Minglei Lu, Xitang Qian, Yuxin Ge, Weiwei Lu et al.
24 citations
ACS Nano
Catalytic Processes in Materials Science
2.81
article

Stable Cu/Cu2O/CuN3@NC Catalysts for Aqueous Phase Reforming of Methanol

Minglei Lu, Xitang Qian, Yuxin Ge, Weiwei Lu, Xueer Huang, Xiaoping Wu, Minhua Shao, Junwei Liao, Qian Zhang, Tiejun Wang, Jiajin Li, Zhuoyu Zheng, Haiping Zhu, Yiyuan Zhou, Chunxiao Yang, Baozhu Chen
article en
24 citations

Abstract

Aqueous-phase reforming of methanol represents a promising avenue for hydrogen (H<sub>2</sub>) production. However, developing highly efficient and low-cost nonprecious catalysts remains challenging. Here, we report the synthesis of Cu-based catalysts with Cu, Cu<sub>2</sub>O, and CuN<sub>3</sub> nanoparticles anchored on the nitrogen-doped carbon, forming Cu<sup>0</sup>/Cu<sup>+</sup>/Cu-N<sub>3</sub> active sites. This catalyst achieves a H<sub>2</sub> production rate of 140.1 μmol/g<sub>cat</sub>/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<sub>3</sub> site facilitates water dissociation into *OH and improves *CO and *OH conversion, leading to enhanced CO conversion and H<sub>2</sub> production kinetics.

ACS NanoVol. 18(37)
Guangdong University of Technology (CN), Hong Kong University of Science and Technology (HK), Key Laboratory of Guangdong Province (CN), Guangzhou HKUST Fok Ying Tung Research Institute (CN)
National Natural Science Foundation of China, Innovation and Technology Commission, Hong Kong University of Science and Technology, National Key Research and Development Program of China
Openalex Percentile: Top 6%
Catalytic Processes in Materials Science
2.81
DOISourceOpenAlex
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