Fuel cell catalyst, method for preparing same, and fuel cell comprising same

The invention relates to a fuel cell catalyst, a preparation method thereof and a fuel cell comprising the same. The fuel cell catalyst includes an electrically conductive carrier and core-shell nanoparticles supported on the carrier. The core comprises platinum and a transition metal, and the shell comprises a dissimilar metal. The electrochemical specific activity is from 0.3 mA/cm < 2 > to 0.6 mA/cm < 2 > and the mass activity is from 0.05 mA/[mu] g to 0.08 mA/[mu] g as measured in an O2-saturated 0.1 M HClO4 electrolyte solution at a scan rate of 5 mV/s and a rotation rate of 1,600 rpm in a potential range of a voltage from 0.05 V to 1.05 V (vs.RHE). 本发明涉及燃料电池催化剂、其制备方法和包含其的燃料电池。所述燃料电池催化剂，包括导电性载体和在载体上负载的核-壳纳米颗粒。核包含铂和过渡金属，壳包含异种金属。在O2饱和的0.1M HClO4电解质溶液中在电压为0.05V至1.05V(vs.RHE)的电位范围内在5mV/s的扫描速率和1,600rpm的旋转速率下测量的电化学比活性为0.3mA/cm2至0.6mA/cm2，并且质量活性为0.05mA/μg至0.08mA/μg。