无机材料学报 ›› 2023, Vol. 38 ›› Issue (11): 1245-1256.DOI: 10.15541/jim20230117

所属专题: 【能源环境】污染物去除(202312)

• 综述 •    下一篇

甲烷完全催化氧化研究进展

孙晨1,2(), 赵昆峰2(), 易志国1,2()   

  1. 1.上海理工大学 材料与化学学院, 上海 200093
    2.中国科学院 上海硅酸盐研究所, 上海 201899
  • 收稿日期:2023-01-27 修回日期:2023-04-25 出版日期:2023-11-20 网络出版日期:2023-05-04
  • 通讯作者: 易志国, 研究员. E-mail: zhiguo@mail.sic.ac.cn;
    赵昆峰, 副研究员. E-mail: zhaokunfeng@mail.sic.ac.cn
  • 作者简介:孙 晨(1996-), 男, 硕士研究生. E-mail: 895029730@qq.com
  • 基金资助:
    科技部高端外专项目(G2022055014L)

Research Progress in Catalytic Total Oxidation of Methane

SUN Chen1,2(), ZHAO Kunfeng2(), YI Zhiguo1,2()   

  1. 1. School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
    2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
  • Received:2023-01-27 Revised:2023-04-25 Published:2023-11-20 Online:2023-05-04
  • Contact: YI Zhiguo, professor. E-mail: zhiguo@mail.sic.ac.cn;
    ZHAO Kunfeng, associate professor. E-mail: zhaokunfeng@mail.sic.ac.cn
  • About author:SUN Chen (1996-), male, Master candidate. E-mail: 895029730@qq.com
  • Supported by:
    Top Foreign Expert Project of the Ministry of Science and Technology of China(G2022055014L)

摘要:

甲烷是对全球温升贡献仅次于二氧化碳的温室气体, 且其全球增温潜势是CO2的80倍以上。在全球变暖和大气中甲烷含量不断增长的背景下, 完全催化氧化大气甲烷对于减缓温室效应和全球变暖具有重要价值。然而, 由于甲烷具有较高的结构稳定性, 在温和条件下将其催化氧化一直面临巨大的挑战。本文综述了近年来甲烷完全氧化在热催化、光催化以及光热协同催化三种反应条件下的研究进展, 热催化中高温增大了能耗并加速了催化剂的失活, 开发低温反应条件下的催化剂已经成为甲烷完全热催化的重点; 光催化提供了一种常温常压条件下利用光能氧化甲烷的方法, 但是相对热催化来说反应速率较低; 光热协同催化在光能和热能的协同作用下, 可实现温和条件下的甲烷高效完全催化氧化, 表现出潜在的应用前景。本文就三种反应催化剂的发展进行综述, 系统分析了不同反应的原理, 以及不同反应条件下甲烷完全催化氧化的优势与不足, 同时总结了催化氧化甲烷所面临的挑战, 并提供潜在的解决方案, 期望为今后的甲烷氧化研究提供借鉴。

关键词: 甲烷完全氧化, 热催化, 光催化, 光热协同, 综述

Abstract:

Methane is the second greenhouse gas contributing greatly to global warming, about 80 times of CO2. Considering background of global warming and atmospheric methane growth, to catalyze total oxidation of atmospheric methane is of great importance to mitigate greenhouse effects and slow this global warming. However, catalytic oxidation of methane has always been a big challenge due to its high structural stability. In this article, research progress in total oxidation of methane under thermal-, photo- and photothermal-catalysis was reviewed. High temperature in thermal catalysis increases the energy loss and accelerates the deactivation of catalysts speedingly. Therefore, development of catalysts that oxidize methane under moderate temperatures is the main research interests. Photocatalysis provides a way to eliminate methane at ambient conditions with the assistance of solar energy, but the reaction rates are lower than that in thermal catalysis. It is worth mentioning that photothermal catalysis, developed in recent years, can achieve efficiently catalytic total oxidation of methane under mild conditions, showing a high potential application prospect. This article reviews development of three modes of catalysis, analyzes their different reaction mechanisms, advantages and disadvantages under different reaction conditions. Finally, prospects and challenges of this catalytic total oxidation are pointed out, which is expected to provide references for future research on this field.

Key words: catalytic oxidation of methane, thermal catalysis, photocatalysis, photothermal catalysis, review

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