Synthesis of Ni/CeO<sub>2</sub> Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming

PAN Ruzheng; ZANG Zihao; HUANG Bangdou; ZHU Wenchao; ZHANG Cheng; SHAO Tao

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Synthesis of Ni/CeO₂ Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming

更新时间：2025-12-08

- Synthesis of Ni/CeO₂ Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming
- Vol. 47, Issue 10, Pages: 3696-3704(2021)
- 作者机构：
  
  1. 河北工业大学河北省电磁场与电器可靠性重点实验室
  2. 河北工业大学省部共建电工装备可靠性与智能化国家重点实验室
  3. 中国科学院电工研究所等离子体科学和能源转化北京市国际科技合作基地
  4. 国民核生化灾害防护国家重点实验室
  5. 中国科学院大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 October 2021，
  
  Published：2021
- 稿件说明：
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PAN Ruzheng, ZANG Zihao, HUANG Bangdou, et al. Synthesis of Ni/CeO₂ Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming[J]. 2021, 47(10): 3696-3704.
DOI：

PAN Ruzheng, ZANG Zihao, HUANG Bangdou, et al. Synthesis of Ni/CeO₂ Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming[J]. 2021, 47(10): 3696-3704. DOI：

摘要

催化剂的粒径对其催化性能有很大影响

为了提高催化剂的性能及制备效率

提出了一种微波等离子体辅助溶胶凝胶法制备催化剂的方法

制备了物质的量比n（Ni）:n（Ce）=1:10、1:20、1:100的Ni/CeO

催化剂。对其甲烷干重整催化性能进行评价。结果表明:n（Ni）:n（Ce）=1:20时对甲烷干重整活性最高。并且微波等离子体辅助溶胶凝胶法制备催化剂(n（Ni）:n（Ce）=1:20)的活性和高空速转化性能均高于传统浸渍法制备的催化剂(n（Ni）:n（Ce）=1:20)。对微波等离子体辅助溶胶凝胶法和浸渍法制备的催化剂(n（Ni）:n（Ce）=1:20)的XRD、SEM表征:XRD谱图显示微波等离子体辅助溶胶凝胶法制备催化剂CeO2峰的半高宽大于浸渍法制备的催化剂;通过SEM表征得到微波等离子体辅助溶胶凝胶法)浸渍法)制备的催化剂颗粒主要分布在50～100 nm（100～150 nm）

约占比41%（37%）。基于对放电光谱的分析

微波等离子体辅助溶胶凝胶法引入了NH、OH等活性基团

并且提供了148 K/ms的淬冷速率

较高的淬冷速率会有效降低催化剂粒径

提高催化活性。

Abstract

The particle size of catalyst has a great influence on its catalytic performance. In order to improve the performance and synthesis efficiency of the catalyst

a microwave plasma-assisted sol-gel method is proposed in this paper. A Ni/CeO

catalyst with a substance ratio of n（Ni）: n（Ce）=1:10

1:20

1:100 was synthesized. The catalytic performance of the methane dry reforming was evaluated. The results show that n（Ni）: n（Ce）=1:20 has the highest activity for methane dry reforming. The activity of catalyst synthesized by microwave plasma-assisted sol-gel method（n（Ni）: n（Ce））=1:20) is

higher than that prepared by traditional impregnation method（n（Ni）: n（Ce）=1:20） at both temperature and high air velocity. The catalysts（n（Ni）: n（Ce）=1:20） synthesized by microwave plasma-assisted sol-gel method and impregnation method was characterized by X-ray diffraction（XRD） and scanning electron microscope（SEM）. XRD patterns show that the CeO2 peaks of the catalyst prepared by microwave plasma-assisted sol-gel method is higher than the catalyst prepared by the dipping method. By SEM images characterization

the catalyst particles prepared by microwave plasma-assisted sol-gel method（impregnation method） are distributed at 50～100 nm（100～150 nm）

accounting for about 41%（37%）. The optical emission spectrum was also analyzed. The microwave plasma-assisted sol-gel method introduces active groups such as NH and OH and provides a quenching rate of 148 K/ms. A higher quenching rate effectively reduces the particle size and increases the activity of catalyst.

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Synthesis of Ni/CeO2 Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming

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Synthesis of Ni/CeO₂ Catalyst by Microwave Plasma-assisted Sol-gel Method and Catalytic Performance of Methane Dry Reforming