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Main observation and conclusionrnIn this paper,pristine cobalt(Ⅱ) phthalocyanine (CoPc) and non-peripheral octamethyl substituted CoPc (N-CoMe2Pc) are the focus of electrochemical investigation.CoPc and N-CoMe2Pc nanorods (NR) were synthesized by a facile precipitation process from sublimated bulk phthalocyanine powders and their electrochemical properties were explored.Due to the large specific surface area,the capaci-tance performance of the nanorods was significantly higher than that of the sublimated powder sample.N-CoMe2Pc powder exhibit-ed better pseudocapacity compared with CoPc powder and CoPc NR,which is attributed to enhanced charge transfer rate and im-proved redox activity after the introduction of octamethyl substituents on phthalocyanine ring.The maximum specific capacitance value was achieved by N-CoMe2Pc NR based electrode,exhibiting 210.2 F g-1 capacitance at 5 mV s-1 scan rate and 156.1 F g-1 at 0.25 A g-1 current density,and also showing high efficiency and satisfactory retention.These results indicate that according to proper mo-lecular design,N-CoMe2Pc NR could be applied as the potential candidate for electrode material in supercapacitors.