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Developing single‐atomic catalysts with superior selectivity and outstanding stability for CO2 electroreduction is desperately required but still challenging. Herein, confinement strategy and three‐dimensional (3D) nanoporous structure design strategy are combined to construct unsaturated single Ni sites (Ni‐N3) stabilized by pyridinic N‐rich interconnected carbon nanosheets. The confinement agent...
Introduction
Qingjin Yiqi granule (QYG) is a prescription medicine of traditional Chinese medicine which is widely used clinically for the recovery of coronavirus patients. However, there is currently limited research on the quality control of QYG.
Objective
To evaluate the quality of QYG qualitatively and quantitatively by making full use of advanced chromatography–mass spectrometry techniques...