Effect of Rare Earth Metal Oxides (CeO2, La2O3) on the Properties of NI-AL2O3 Catalysts for Biogas Reforming

IF 0.8 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2025-09-23 DOI:10.1007/s11237-025-09853-9

S. O. Soloviev, Ya.P. Kurilets, D. Yu. Balakin, Y. M. Nychiporuk

引用次数: 0

Abstract

It has been established that during the biogas reforming process (CH₄:CO₂ > 1) over Ni-Al₂O₃/cordierite catalysts modified with rare earth metal oxides (CeO₂, La₂O₃) reactant activation occurs at different surface sites: CH₄ on Ni⁰ and CO₂ on MeO_x (Me = La, Ce). This allows to avoid the competition between CH₄ and CO₂ molecules for active surface sites, facilitating a stable process under methane excess.

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稀土金属氧化物（CeO2, La2O3）对NI-AL2O3生物气重整催化剂性能的影响

研究表明，在稀土金属氧化物（CeO2, La2O3）修饰的Ni-Al2O3/堇青石催化剂（CH4:CO2 > 1）上的沼气重整过程中，不同的表面位点发生了反应物活化：CH4在Ni0上，CO2在MeOx （Me = La, Ce）上。这可以避免CH4和CO2分子之间对活性表面位点的竞争，促进甲烷过量下的稳定过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.