Time-Resolved Product Observation for CO₂ Electroreduction Using Synchronised Electrochemistry-Mass Spectrometry with Soft Ionisation (sEC-MS-SI).

ABSTRACT: The mechanistic understanding of electrochemical CO₂ reduction reaction (CO₂ RR) requires a rapid and accurate characterisation of product distribution to unravel the activity and selectivity, which is yet hampered by the lack of advanced correlative approaches. Here, we present the time-resolved identification of CO₂ RR products by using the synchronised electrochemistry-mass spectrometry (sEC-MS). Transients in product formation can be readily captured in relation to electrochemical conditions. Moreover, a soft ionisation (SI) strategy is developed in MS for the direct observation of CO, immune to the interference of CO₂ fragments. With the sEC-MS-SI, the kinetic information, such as Tafel slopes and onset potentials, for a myriad of CO_2</

SUBMITTER: Zhang G 

PROVIDER: S-EPMC10952920 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature