甲烷低温热催化氧化中的水中毒机理及抗水性提升策略

doi:10.11896/cldb.25020069

材料导报

2026, Vol. 40

Issue (4): 25020069-9 https://doi.org/10.11896/cldb.25020069

高分子与聚合物基复合材料

甲烷低温热催化氧化中的水中毒机理及抗水性提升策略

郭和湉婧¹, 蔡洁莹^2,3,4, 李凯¹, 张燕^2,3,4,*, 宁平¹, 王飞^1,*

1 昆明理工大学环境科学与工程学院,昆明 650000
2 中国科学院城市环境研究所先进环境装备与污染防治技术全国重点实验室,福建厦门 361021
3 中国科学院城市环境研究所宁波城市环境观测研究站浙江省临港石油化工污染控制重点实验室,浙江宁波 315800
4 中国科学院大学,北京 100049

Water Poisoning Mechanisms and Water Resistance Enhancement Strategies in Low-temperature Thermal Catalytic Oxidation of Methane

GUO Hetianjing¹, CAI Jieying^2,3,4, LI Kai¹, ZHANG Yan^2,3,4,*, NING Ping¹, WANG Fei^1,*

1 Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650000, China
2 National Key Laboratory of Advanced Environmental Equipment and Pollution Prevention Technology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Fujian, China
3 Zhejiang Key Laboratory of Pollution Control for Port-Petrochemical Industry, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo 315800, Zhejiang, China
4 University of Chinese Academy of Sciences, Beijing 100049, China

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摘要甲烷作为一种重要的清洁能源,对全球气候变化的影响已引起广泛关注。近年来,甲烷浓度的上升可能导致气候变化加剧,因此研究如何高效去除甲烷显得尤为重要。催化氧化被视为去除甲烷的有效方法,尤其在环境保护和资源利用方面具有重要意义。然而,水分的存在会显著抑制催化剂的活性,导致催化剂发生水中毒现象。本文对甲烷低温热催化氧化的水中毒机理及其抗水性的提高进行了详细综述,分析了水分通过覆盖活性位点、改变反应路径的机制降低催化剂活性的原因,同时,探讨了三种主要的催化氧化机理:Mars-van-Krevelen、Langmuir-Hinshelwood和Eley-Rideal机制。针对提高催化剂抗水性,探讨了优化活性组分、采用双金属及金属氧化物催化剂、载体设计、添加助剂及不同制备方法等策略;通过减少水分子吸附、贵金属分散度调控、载体物理化学性调控及增强晶格氧迁移能力等机制提升抗水性。通过对当前研究现状的总结与展望,为甲烷热催化氧化催化剂的优化与实际应用提供理论支持。

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关键词: 甲烷甲烷热催化氧化催化剂抗水性抗水性催化剂设计

Abstract: As a critical clean energy resource, methane has garnered substantial attention due to its profound impact on global climate change. The escalating atmospheric methane concentrations, which contribute significantly to climate warming, necessitate the development of efficient methane mitigation strategies. Catalytic oxidation stands out as a promising technology for methane removal, offering dual benefits in environmental protection and energy utilization. However, the presence of water vapor severely compromises catalytic performance through water-induced deactivation, posing a major challenge for practical applications. This review systematically summaries the mechanistic pathways underlying water poisoning in low-temperature methane thermal catalytic oxidation, focusing on competitive adsorption at active sites and water-mediated alteration of reaction pathways. Furthermore, three fundamental catalytic mechanisms:Mars-van-Krevelen (MvK), Langmuir-Hinshelwood (L-H), and Eley-Rideal (E-R) are comparatively analyzed. To address water sensitivity, advanced strategies are critically evaluated, including optimizing active components, using bimetallic and metal oxide catalysts, designing supports, adding promoters, and employing different preparation methods to enhance catalysts’ water resistance. The mechanisms include reducing water molecule adsorption, regulating the dispersion of noble metals, adjusting the physicochemical properties of the support, and enhancing lattice oxygen mobility. This work aims to provide theoretical support for the optimization and practical application of methane thermal catalytic oxidation catalysts.

Key words: methane methane thermal catalytic oxidation catalyst water resistance water-resistant catalyst design

出版日期: 2026-02-25 发布日期: 2026-02-13

ZTFLH:	TQ038
	TQ426

基金资助: 国家自然科学基金(52470130;52370113)

通讯作者: * 张燕,博士,中国科学院城市环境研究所副研究员、硕士研究生导师。目前主要从事环境催化、大气污染控制等方面的研究。yzhang3@iue.ac.cn
王飞,博士,昆明理工大学环境科学与工程学院教授、博士研究生导师。目前主要从事工业尾气的催化净化及资源化转化等方面的研究。wangfei@kust.edu.cn

作者简介: 郭和湉婧,昆明理工大学环境科学与工程学院硕士研究生,在王飞教授的指导下进行研究。目前主要研究领域为甲烷热催化氧化。

引用本文:

郭和湉婧, 蔡洁莹, 李凯, 张燕, 宁平, 王飞. 甲烷低温热催化氧化中的水中毒机理及抗水性提升策略[J]. 材料导报, 2026, 40(4): 25020069-9.
GUO Hetianjing, CAI Jieying, LI Kai, ZHANG Yan, NING Ping, WANG Fei. Water Poisoning Mechanisms and Water Resistance Enhancement Strategies in Low-temperature Thermal Catalytic Oxidation of Methane. Materials Reports, 2026, 40(4): 25020069-9.

链接本文:

https://www.mater-rep.com/CN/10.11896/cldb.25020069 或 https://www.mater-rep.com/CN/Y2026/V40/I4/25020069

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