光催化甲烷转化为高价值产品的研究进展  

Research Progress in Photocatalytic Methane Conversion to High-value Products

作　　者：张润智 邱卓 李兰燕 郭俊豪 马娆 顾乾军 杨智[1] ZHANG Runzhi;QIU Zhuo;LI Lanyan;GUO Junhao;MA Rao;GU Qianjun;YANG Zhi(College of Chemistry and Chemical Engineering,Yunnan Normal University,Yunnan Key Laboratory of Modern Separation Analysis and Substance Transformation,Kunming 650500,China)

机构地区：[1]云南师范大学化学化工学院,云南省现代分离分析与物质转化重点实验室,云南昆明650500

出　　处：《分子催化(中英文)》2025年第1期85-100,I0004,共17页Journal of Molecular Catalysis(China)

基　　金：国家自然科学基金(22265032);云南师范大学研究生科研创新基金项目(YJSJJ23-B82)。

摘　　要：甲烷是天然气的主要成分,其成本低、热值高、储量丰富,是一种很有前景的合成高附加值化学品的原料.将甲烷转化为高附加值产品,如C1(甲醇、甲酸等)、C2(乙烷、乙醇、乙酸等)和C3+(丙烷、苯等),实现甲烷的高效利用,是一项很有前景的技术.然而,由于甲烷高稳定性和化学惰性,在温和条件下将其激活和转化是极具挑战性的.目前,工业上甲烷转化主要通过热催化过程进行,通常需要高温高压,耗能大,投资高,限制了甲烷的高效转化.光催化可以在温和条件下利用清洁且可持续的太阳能,将甲烷转化为一系列高价值产品.本文综述了近年来光催化甲烷转化的研究进展,介绍了光催化甲烷转化的基本原理,并详细介绍了甲烷转化为烃类和含氧化合物的最新进展,从活性中心和反应途经等方面阐述了反应机理.最后,根据目前的进展和基本认识,讨论了光催化甲烷转化领域面临的挑战和研究前景.Methane is the main component of natural gas,due to its low cost,high calorific value,and vast reserves,making it a potential chemical raw material for the synthesis of high-value chemicals.To achieve efficient utilization of methane,converting methane to high-value chemicals,such as C1(methanol,formic acid,etc.),C2(ethane,ethanol,acetic acid,etc.),and C3+(propane,benzene,etc.),represents a promising technology.However,owing to the inherent stability and chemical inertness of methane,the activation and conversion of CH4 is extremely challenging under mild conditions.At present,industrial technology mainly relies on the thermal catalysis,which demands high temperatures and pressure,resulting in substantial energy usage and significant capital costs that restricts efficient methane conversion.Photocatalysis offers a sustainable and environmentally friendly alternative,driven by solar energy to facilitate methane conversion at mild temperatures,and is thus an attractive approach for producing a variety of valuable chemicals from methane.This review summarizes the latest developments in photocatalytic systems for methane conversion over the past few years.It provides a detailed explanation of the basic principles of photocatalytic methane conversion and the latest photocatalyst for transforming methane into hydrocarbons and oxygen-containing compounds.The reaction mechanism is also described from the active center and reaction pathways.Finally,it explores the future outlook and challenges in photocatalytic methane conversion,drawing on current advancements and fundamental knowledge in the field.

关 键 词：甲烷转化 光催化 非氧化偶联 氧化偶联 含氧化合物 

分 类 号：O643.3[理学—物理化学]