Enhance the Activity of CO2 Hydrogenation to Methanol Over La2O3 Promoted In2O3-ZrO2 Catalysts

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-07-04 DOI:10.1007/s10562-025-05083-9

Runqin Chen, Wei Na, Xiangying Wang, Xingpeng Sun, Xinyu Ling, Jianyu Li, Wengui Gao

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Abstract

In this study, indium–zirconium catalysts with varying levels of lanthanum doping were synthesized via a hydrothermal method to evaluate their performance in the hydrogenation of carbon dioxide to methanol. To elucidate the effects of lanthanum incorporation, a comprehensive set of characterization techniques and catalytic evaluations was employed to examine structural modifications, surface properties, and catalytic activity. The results demonstrate that optimal lanthanum doping significantly improves both activity and selectivity, achieving a maximum space–time yield of 7.22 mmol·h^− 1·g_cat⁻¹. Detailed analyses revealed the influence of lanthanum on crystal phase composition, specific surface area, reducibility, adsorption behavior, and surface elemental distribution. A potential reaction mechanism is also proposed. This work provides valuable insights into the rational design of high-performance catalysts for CO₂ hydrogenation to methanol.

Graphical abstract

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La2O3促进的In2O3-ZrO2催化剂提高CO2加氢制甲醇的活性

本研究通过水热法合成了不同镧掺杂水平的铟锆催化剂，并对其在二氧化碳加氢制甲醇中的性能进行了评价。为了阐明镧掺入的影响，采用了一套全面的表征技术和催化评价来检查结构修饰，表面性质和催化活性。结果表明，最佳镧掺杂可显著提高活性和选择性，最大时空产率为7.22 mmol·h−1·gcat−1。详细分析揭示了镧对晶体相组成、比表面积、还原性、吸附行为和表面元素分布的影响。并提出了一种可能的反应机理。这项工作为CO₂加氢制甲醇的高性能催化剂的合理设计提供了有价值的见解。图形抽象

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

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.