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Analytical methods

Mass spec live

High current densities during CO2 reduction in gas diffusion electrode (GDE) flow cells are incompatible with present online product-profiling methods. With the adaptation of proton-transfer reaction time-of-flight mass spectrometry, operando mechanistic information on C1–C4 product formation at copper-based GDEs is now accessible.

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Fig. 1: Operando measurement of CO2 electrolysis.


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Correspondence to Jack H. Baricuatro.

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Baricuatro, J.H. Mass spec live. Nat Catal 5, 1077–1078 (2022).

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