화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.60, 441-450, April, 2018
DOI10.1016/j.jiec.2017.11.031  Export Citation
Facile hydrothermal synthesis of lanthanum oxide/hydroxide nanoparticles anchored reduced graphene oxide for supercapacitor applications
Rajesh Rajagopal, and Kwang-Sun Ryu†
  • Department of Chemistry and Energy Harvest Storage Research Center (EHSRC), University of Ulsan, Ulsan 680-749, Republic of Korea
E-mail:
This paper reports the synthesis of lanthanum oxide/hydroxide nanoparticle (LaNPs)-doped rGO nanosheets. The uniform distribution of LaNPs on the rGO nanosheets was confirmed by FESEM, TEM, and elemental analysis. A dramatic change in electrochemical behavior was observed by adjusting the concentration of LaNPs in rGO (LaG ratio = 1:2, 1:1 and 2:1). The LaG 12 showed a better areal capacitance of 889.29 F cm 2 than LaG 11 (428.58 F cm-2) and LaG 21 (260.72 F cm-2). Further, improved cycle stability (84% after 1000 cycles) with good impedance behavior confirms LaG 12 is a suitable electrode material for high-performance supercapacitor fabrication.
Keywords:Lanthanum nanoparticles;Reduced graphene oxide;Supercapacitor;Areal capacitance;Impedance
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