A novel Ni–MoCxOy interfacial catalyst for syngas production via the chemical looping dry reforming of methane
A novel Ni–MoCxOy interfacial catalyst for syngas production via the chemical looping dry reforming of methane
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一种新型 Ni−MoCxOy 界面催化剂,用于通过甲烷化学循环干重整生产合成气
DOI:
10.1016/j.chempr.2022.09.007
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发表时间:
2022-10
期刊:
影响因子:
23.5
通讯作者:
Chuan Shi
中科院分区:
文献类型:
--
作者:
Xiao Zhang;Yao Xu;Yang Liu;Liang Niu;Yanan Diao;Zirui Gao;Bingbing Chen;Jinglin Xie;Mingshu Bi;Meng Wang;Dequan Xiao;Ding Ma;Chuan Shi
Summary Modulating the oxygen-metal interface that enables efficient and selective C–H activation remains challenging. Herein, we present a novel MoCxOy oxygen carrier for syngas production via the chemical looping CH4–CO2 reforming (CL-DRM) reaction. Molybdenum carbide additive induces the re-dispersion of Ni particles from Al2O3 surface to α-MoC driven by the strong interaction between Ni and α-MoC. A dynamic structure transformation between MoCx and MoCxOy occurs and new Ni–MoCxOy interfaces form during the redox cycling, which is discovered to be crucial for the low-temperature CH4 activation using surface construction experiments and in-situ spectroscopic methods. As a result, Ni–(α-MoC)/Al2O3 exhibits near 100% selectivity to syngas with a H2/CO ratio of 2:1 at 500°C, which is a significantly lower temperature than that of conventional systems. This study first employs molybdenum carbide as an oxygen storage material (OSM) in CL-DRM reaction, paving the way of utilizing transition metal carbides as OSMs in chemical looping processes.
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影响因子:
22.1
作者:
Loefberg, Axel;Guerrero-Caballero, Jesus;Jalowiecki-Duhamel, Louise
通讯作者:
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影响因子:
22.1
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通讯作者:
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DOI:
10.1016/j.jcou.2016.11.003
发表时间:
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期刊:
Journal of CO 2 Utilization
影响因子:
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影响因子:
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作者:
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通讯作者:
In-Hyuk Son;Soonchul Kwon;J. Park;Seung-Jae Lee
影响因子:
22.1
作者:
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