Boosting the Capacitive Performance of Cobalt(Ⅱ)Phthalocyanine by Non-peripheral Octamethyl Substitution for Supercapacitors

2021

10.1002/cjoc.202000676

CHINESE JOURNAL OF CHEMISTRY   Impact Factor & Quartile

1001-604X

Main observation and conclusion In 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.

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WOS:000645001500028

CHEMISTRY

WanFang

zghx-e202105028

1.School of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150001,China;Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China
2.Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China
3.Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China;Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China

. Boosting the Capacitive Performance of Cobalt(Ⅱ)Phthalocyanine by Non-peripheral Octamethyl Substitution for Supercapacitors[J]. CHINESE JOURNAL OF CHEMISTRY,2021,39(5):1265-1272.

(2021).Boosting the Capacitive Performance of Cobalt(Ⅱ)Phthalocyanine by Non-peripheral Octamethyl Substitution for Supercapacitors.CHINESE JOURNAL OF CHEMISTRY,39(5),1265-1272.

"Boosting the Capacitive Performance of Cobalt(Ⅱ)Phthalocyanine by Non-peripheral Octamethyl Substitution for Supercapacitors".CHINESE JOURNAL OF CHEMISTRY 39.5(2021):1265-1272.