A facile synthesis of hierarchical alpha-MnO2 nanofibers on 3D-graphene foam for supercapacitor application

作者：Patil Umakant M; Sohn Ji Soo; Kulkarni Sachin B; Park Hyung Goo; Jung Youngmo; Gurav Kishor V; Kim Jae Hun^*; Jun Seong Chan

来源：Materials Letters, 2014, 119: 135-139.

DOI：10.1016/j.matlet.2013.12.105

• alpha-MnO2
• Nanofibers
• 3D-graphene foam
• Supercapacitor

Prominence of current work mainly conveys synthesis of alpha-MnO2 nanofibers on 3D-graphene foam (GF) by solution growth (SG) method and its proficient influence in electrochemical supercapacitors' performance. The alpha-MnO2 nanofibers are synthesized on graphene surface by using MnSO4 and ammonium persulfate as an oxidant. The results show formation of aggregated bundles (size about 15-30 nm) of 1D alpha-MnO2 nanofibers on the graphene surface. In supercapacitor, the unique nanofibrous morphology of MnO2 on 3D GF electrode exhibits higher specific capacitance (670 F g(-1)) than on the conventional current collector (CC) electrode (440 F g(-1)).

• 出版日期2014-3-15