摘要：Stimulated by increasing environmental awareness and renewable-energy utilization capabilities,fuel cell and electrolyzer technologies have emerged to play a unique role in energy storage,conversion,and *** particular,solid oxide electrolysis cells(SOECs)are increasingly attracting the interest of researchers as a platform for the electrolysis and conversion of C1 molecules,such as carbon dioxide and *** to traditional catalysis methods,SOEC technology offers two major advantages:high energy efficiency and poisoning resistance,ensuring the long-term robustness of C1-to-fuels *** this review,we focus on state-of-the-art technologies and introduce representative works on SOEC-based techniques for C1 molecule electrochemical conversion developed over the past several years,which can serve as a timely reference for designing suitable catalysts and cell processes for efficient and practical conversion of C1 *** challenges and prospects are also discussed to suggest possible research directions for sustainable fuel production from C1 molecules by SOECs in the near future.

摘要：The electrochemical conversion of carbon dioxide(CO_(2))has been attracting increasingly research interest in the past decade,with the ultimate goal of utilizing electricity from renewable energy to realize carbon neutrality,as well as economic and energy ***,the capture and concentrating of CO_(2) cost a substantial portion of energy,while almost all the reported researches showed CO_(2) electroreduction under high concentrations of(typically pure)CO_(2) reactants,and only very few recent studies have investigated the capability of applying low CO_(2) concentrations(such as~10%in flue gases).In this work,we first demonstrated the electroreduction of 0.03%CO_(2)(in helium)in a homemade gas‐phase electrochemical electrolyzer,using a low‐cost copper(Cu)or nanoscale copper(nano‐Cu)*** with steam,the gas‐phase CO_(2) was directly delivered onto the gas‐solid interface with the Cu catalyst and reduced to CO,without the need/constraint of being adsorbed by aqueous solution or alkaline *** tuning the catalyst and experi‐mental parameters,the conversion efficiency of CO_(2) reached as high as~95%.Furthermore,we demonstrated the direct electroreduction of 0.04%CO_(2) from real air sample with an optimized conversion efficiency of~79%,suggesting a promising perspective of the electroreduction ap‐proach toward direct CO_(2) conversion.