摘要
This article reviews the challenges and recent advancements in the utilization of methane(CH_(4))resources via low-temperature electrochemical oxidation(CH_(4)OR)for producing value-added chemicals.Conventional indirect pathways,including methane reforming,are energy-intensive and operate under harsh conditions.In contrast,thermal catalytic partial oxidation frequently results in over-oxidation,thereby limiting its practical applications.In contrast,electrochemical CH_(4)OR represents a promising alternative,facilitating efficient methane conversion under mild conditions,compatible with renewable energy sources,and providing advantages in product separation and transport.This review explores the mechanistic aspects of C—H bond activation during CH_(4)OR,encompassing both direct and radical-mediated indirect pathways.
本文总结了甲烷低温电氧化法(CH_(4)OR)催化剂制备高附加值化学品过程面临的挑战和研究进展。工业上,常见的甲烷高温重整方法,能耗高且操作条件苛刻,甲烷易过度氧化或积碳,不利于绿色低碳发展。CH_(4)OR方法能够在温和条件下实现甲烷的高效转化,并与可再生能源兼容,在波动性清洁能源储存转化与甲烷高效利用方面兼具优势。目前,针对CH_(4)OR的研究比较多,主要集中在开发高活性、高稳定性和高选择性的电催化剂方面。本文从CH_(4)OR过程中C—H键活化的活性氧活化直接途径、自由基介导的间接路径的两类主要反应机制出发,梳理了CH_(4)OR催化剂的研究进展和未来发展方向。
出处
《化学进展》
2026年第3期421-442,共22页
Progress in Chemistry
基金
国家自然科学基金项目(No.21902017)
中国博士后科学基金(No.2024M753166)
重庆市自然科学基金(No.CSTB2025NSCQ-GPX0960,CSTB2025TIAD-KPX0017)
重庆市教委科学技术研究项目(No.KJQN202301121)
四川省自然科学基金(No.2024NSFSC0295,2024ZYD0157)资助。
