首页|Preparation of porous(Mo2/3Y1/3)2AlC and its hydrogen evolution reaction performance
Preparation of porous(Mo2/3Y1/3)2AlC and its hydrogen evolution reaction performance
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Porous(Mo2/3Y1/3)2AlC MAX phase ceramic was prepared by reaction sintering method using Mo,Y,Al,and graphite powder as raw materials.The influence of changes in Al content on the purity of the obtained samples was investigated using X-ray diffraction(XRD),scanning electron microscopy(SEM),Archimedes method,and bubble point method.The conditions for obtaining a pure phase were identified,and the transformation path of the phase during sintering and the mechanism of pore formation were provided.The linear sweep voltammetry(LSV)cure and cyclic voltammetry(CV)cure of MAX were tested using an electrochemical workstation.It can be calculated that MAX exhibits good hydrogen evolution reaction(HER)performance under alkaline conditions due to its high electrochemical active surface area(ECSA)of 373.2 and small Tafel slope of 41.7 mV·dec-1.
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