Rigorous assessment of heterogeneous electrocatalysts for electrochemical water splitting has been a critical issue mainly due to insufficient standard protocols to measure and report experimental data.In this perspec...Rigorous assessment of heterogeneous electrocatalysts for electrochemical water splitting has been a critical issue mainly due to insufficient standard protocols to measure and report experimental data.In this perspective,we highlight some common pitfalls when measuring and reporting electrocatalytic data,which should be avoided to ensure the accuracy and reproducibility and to advance the water splitting field.We advocate to prevent the introduction of artefacts from the counter and reference electrodes,as well as the impurities in the electrolyte when conducting electrocatalyst activity measurements.In addition,we encourage the use of the electrochemically active surface area(ECSA)-normalized current densities to represent the intrinsic activity of the reported catalysts for a better comparison with previously known materials.Suitable ECSA measurement methods should be employed based on the nature of catalysts.Recommendations made in this perspective will hopefully assist in identifying advanced catalysts for water splitting research.展开更多
基金the Fund of the Australian Renewable Energy Agency(ARENA)and the Fund of the Australian Research Council(No.FT170100224)。
文摘Rigorous assessment of heterogeneous electrocatalysts for electrochemical water splitting has been a critical issue mainly due to insufficient standard protocols to measure and report experimental data.In this perspective,we highlight some common pitfalls when measuring and reporting electrocatalytic data,which should be avoided to ensure the accuracy and reproducibility and to advance the water splitting field.We advocate to prevent the introduction of artefacts from the counter and reference electrodes,as well as the impurities in the electrolyte when conducting electrocatalyst activity measurements.In addition,we encourage the use of the electrochemically active surface area(ECSA)-normalized current densities to represent the intrinsic activity of the reported catalysts for a better comparison with previously known materials.Suitable ECSA measurement methods should be employed based on the nature of catalysts.Recommendations made in this perspective will hopefully assist in identifying advanced catalysts for water splitting research.
