In this study, a simple solvothermal method was used to prepare a highly porous phosphorus-dopedgraphene aerogel (PGA), using graphene oxide (GO) as the precursor and phytic acid as the dopant.The morphostructural characterization of PGA was conducted by scanning electron microscopy (SEM)and X-ray photoelectron spectroscopy (XPS). For supercapacitor applications, PGA materials showedsuperior capacitance performance (225.3 F g?1 at 1A/g) and long-term cycle stability. The specificcapacitance retention rate reached 95% after 10,000 charge and discharge cycles. Even if the currentdensity was doubled after 10 times,it can reach 196.8 F g?1(10 A/g). The as-prepared PGA in thisstudy has the advantages of low cost, safety, reliability, and excellent electrochemical performance,and thus has superior application potential.
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