Hexaaluminate catalyst LaNix Mg 0.8 Al 11.2-x O19+δ for carbon dioxide reforming with methane to syngas

WANG Junxia; MENG Dawei; WU Xiuling; HE Mingzhong; PAN Hui; ZHEN Kaiji

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Hexaaluminate catalyst LaNi_xMg _0.8 Al _11.2-xO_19+δ for carbon dioxide reforming with methane to syngas

更新时间：2025-12-10

- Hexaaluminate catalyst LaNi_xMg _0.8 Al _11.2-xO_19+δ for carbon dioxide reforming with methane to syngas
- CIESC Journal Issue 10, Pages: 2479-2483(2009)
- 作者机构：
  
  1. 中国地质大学材料科学与化学工程学院,教育部纳米矿物材料及应用工程研究中心
  2. 吉林大学化学系
- 作者简介：
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- Online First：05 October 2009，
  
  Published：05 October 2009
- 稿件说明：
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WANG Junxia, MENG Dawei, WU Xiuling, et al. Hexaaluminate catalyst LaNi_xMg _0.8 Al _11.2-xO_19+δ for carbon dioxide reforming with methane to syngas[J]. CIESC Journal, 2009, (10): 2479-2483.
DOI：

WANG Junxia, MENG Dawei, WU Xiuling, et al. Hexaaluminate catalyst LaNi_xMg _0.8 Al _11.2-xO_19+δ for carbon dioxide reforming with methane to syngas[J]. CIESC Journal, 2009, (10): 2479-2483. DOI：

摘要

制备了一系列六铝酸盐LaNixMg 0.8 Al 11.2-xO19+δ催化剂，考察了其对甲烷和二氧化碳重整制合成气的催化性能，并用XRD、UVDRS、TPR对其结构进行了表征。结果表明，此系列催化剂形成了磁铅石型和β-Al2O3型两种结构的共同体，并且Mg和Ni均被镶嵌在六铝酸盐晶体的晶格中;催化活性考察结果表明，还原态LaNixMg0.8 Al 11.2-xO19+δ系列催化剂表现出良好的催化活性和还原稳定性，在相同的反应条件下，甲烷和二氧化碳的转化率均随Ni调变量的增大和温度的升高而增加。

Abstract

A series of hexaaluminate LaNixMg0.8Al 112-xO 19+δ were prepared and characterized by means of XRD

UVDRS and TPR.The results showed that the LaNi xMg 0.8 Al112-xO19+δ are consisted of structures with both magnetoplumbitetype and β-Al2O3 type

and the modifier Ni and Mg have been incorporated into the hexaaluminate lattice.The prepared hexaaluminate LaNi x Mg 0.8 Al11.2-xO19+δ possess higher catalytic activity and exhibits good reduction stability during the reaction of CO2 reforming with CH4 to syngas.Under similar reaction conditions

CH4 and CO2 conversions are clearly increased with increasing the x value and reaction temperature.

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