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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.15526 |
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| _version_ | 1866909210088833024 |
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| author | Yan, Guihua Pršlja, Paulina Chen, Gaofeng Kang, Jiahui Liu, Yongde Caro, Miguel A. Chen, Xi Zeng, Xianhai Peng, Bo |
| author_facet | Yan, Guihua Pršlja, Paulina Chen, Gaofeng Kang, Jiahui Liu, Yongde Caro, Miguel A. Chen, Xi Zeng, Xianhai Peng, Bo |
| contents | Syngas conversion into higher alcohols represents a promising avenue for transforming coal or biomass into liquid fuels. However, the commercialization of this process has been hindered by the high cost, low activity, and inadequate C$_{2+}$OH selectivity of catalysts. Herein, we have developed Cu/Co carbon wood catalysts, offering a cost-effective and stable alternative with exceptional selectivity for catalytic conversion. The formation of Cu/Co nanoparticles was found, influenced by water-1,2-propylene glycol ratios in the solution, resulting in bidisperse nanoparticles. The catalyst exhibited a remarkable CO conversion rate of 74.8% and a selectivity of 58.7% for C$_{2+}$OH, primarily comprising linear primary alcohols. This catalyst demonstrated enduring stability and selectivity under industrial conditions, maintaining its efficacy for up to 350 h of operation. We also employed density functional theory (DFT) to analyze selectivity, particularly focusing on the binding strength of CO, a crucial precursor for subsequent reactions leading to the formation of CH$_3$OH. DFT identified the pathway of CH$_x$ and CO coupling, ultimately yielding C$_2$H$_5$OH. This computational understanding, coupled with high performance of the Cu/Co-carbon wood catalyst, paves ways for the development of catalytically selective materials tailored for higher alcohols production, thereby ushering in new possibility in this field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_15526 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Syngas conversion to higher alcohols via wood-framed Cu/Co-carbon catalyst Yan, Guihua Pršlja, Paulina Chen, Gaofeng Kang, Jiahui Liu, Yongde Caro, Miguel A. Chen, Xi Zeng, Xianhai Peng, Bo Chemical Physics Syngas conversion into higher alcohols represents a promising avenue for transforming coal or biomass into liquid fuels. However, the commercialization of this process has been hindered by the high cost, low activity, and inadequate C$_{2+}$OH selectivity of catalysts. Herein, we have developed Cu/Co carbon wood catalysts, offering a cost-effective and stable alternative with exceptional selectivity for catalytic conversion. The formation of Cu/Co nanoparticles was found, influenced by water-1,2-propylene glycol ratios in the solution, resulting in bidisperse nanoparticles. The catalyst exhibited a remarkable CO conversion rate of 74.8% and a selectivity of 58.7% for C$_{2+}$OH, primarily comprising linear primary alcohols. This catalyst demonstrated enduring stability and selectivity under industrial conditions, maintaining its efficacy for up to 350 h of operation. We also employed density functional theory (DFT) to analyze selectivity, particularly focusing on the binding strength of CO, a crucial precursor for subsequent reactions leading to the formation of CH$_3$OH. DFT identified the pathway of CH$_x$ and CO coupling, ultimately yielding C$_2$H$_5$OH. This computational understanding, coupled with high performance of the Cu/Co-carbon wood catalyst, paves ways for the development of catalytically selective materials tailored for higher alcohols production, thereby ushering in new possibility in this field. |
| title | Syngas conversion to higher alcohols via wood-framed Cu/Co-carbon catalyst |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2405.15526 |