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Technically viable electrocatalysts for the oxygen evolution reaction (OER) must be both active and stable under the harsh conditions at an electrolyser anode. While numerous highly active metal‐oxide catalysts have been identified, only very few are sufficiently stable, with iridium oxides being the most prominent. In this perspective, we draw insights from OER mechanisms to circumvent the activity‐stability conundrum generally plaguing the development of OER catalysts. In the commonly considered OER mechanisms, one or several metal‐oxygen (M−O) bonds are required to be broken along the OER pathway, providing a mechanistic link between the OER and oxide decomposition. However, a recently discovered mechanism on crystalline iridium dioxide provides a new OER pathway without M−O bond breakages, thus enabling the combination of sufficient activity and stability. [ABSTRACT FROM AUTHOR]

A multivariate calibration method for mass spectrometry is presented that enables a quantitative analysis of gas mixtures containing interfering gases that contribute to the same mass-to-charge ratios at nominal resolution. Multiple calibration gas mixtures with linearly independent compositions are used in order to obtain the calibration constants for the contribution of each gas to each of the mass-to-charge ratio peaks. The method was successfully applied to the quantitative detection of CO in a mixture with CO2 and N2, which represents a difficulty commonly encountered in heterogeneous catalysis and electrocatalysis research. [ABSTRACT FROM AUTHOR]

A multivariate calibration method for mass spectrometry is presented that enables a quantitative analysis of gas mixtures containing interfering gases that contribute to the same mass-to-charge ratios at nominal resolution. Multiple calibration gas mixtures with linearly independent compositions are used in order to obtain the calibration constants for the contribution of each gas to each of the mass-to-charge ratio peaks. The method was successfully applied to the quantitative detection of CO in a mixture with CO2 and N2, which represents a difficulty commonly encountered in heterogeneous catalysis and electrocatalysis research. [ABSTRACT FROM AUTHOR]